PowerPC specific sub-directories

src/ppc/full-codegen-ppc.cc

-// Copyright 2012 the V8 project authors. All rights reserved.
+// Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
-#if V8_TARGET_ARCH_ARM
+#if V8_TARGET_ARCH_PPC
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
 #include "src/compiler.h"
 #include "src/debug.h"
 #include "src/full-codegen.h"
 #include "src/ic/ic.h"
 #include "src/isolate-inl.h"
 #include "src/parser.h"
 #include "src/scopes.h"
 
-#include "src/arm/code-stubs-arm.h"
-#include "src/arm/macro-assembler-arm.h"
+#include "src/ppc/code-stubs-ppc.h"
+#include "src/ppc/macro-assembler-ppc.h"
 
 namespace v8 {
 namespace internal {
 
 #define __ ACCESS_MASM(masm_)
 
-
 // A patch site is a location in the code which it is possible to patch. This
 // class has a number of methods to emit the code which is patchable and the
 // method EmitPatchInfo to record a marker back to the patchable code. This
-// marker is a cmp rx, #yyy instruction, and x * 0x00000fff + yyy (raw 12 bit
+// marker is a cmpi rx, #yyy instruction, and x * 0x0000ffff + yyy (raw 16 bit
 // immediate value is used) is the delta from the pc to the first instruction of
 // the patchable code.
+// See PatchInlinedSmiCode in ic-ppc.cc for the code that patches it
 class JumpPatchSite BASE_EMBEDDED {
  public:
   explicit JumpPatchSite(MacroAssembler* masm) : masm_(masm) {
 #ifdef DEBUG
     info_emitted_ = false;
 #endif
   }
 
-  ~JumpPatchSite() {
-    DCHECK(patch_site_.is_bound() == info_emitted_);
-  }
+  ~JumpPatchSite() { DCHECK(patch_site_.is_bound() == info_emitted_); }
 
   // When initially emitting this ensure that a jump is always generated to skip
   // the inlined smi code.
   void EmitJumpIfNotSmi(Register reg, Label* target) {
     DCHECK(!patch_site_.is_bound() && !info_emitted_);
-    Assembler::BlockConstPoolScope block_const_pool(masm_);
+    Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm_);
     __ bind(&patch_site_);
-    __ cmp(reg, Operand(reg));
-    __ b(eq, target);  // Always taken before patched.
+    __ cmp(reg, reg, cr0);
+    __ beq(target, cr0);  // Always taken before patched.
   }
 
   // When initially emitting this ensure that a jump is never generated to skip
   // the inlined smi code.
   void EmitJumpIfSmi(Register reg, Label* target) {
+    Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm_);
     DCHECK(!patch_site_.is_bound() && !info_emitted_);
-    Assembler::BlockConstPoolScope block_const_pool(masm_);
     __ bind(&patch_site_);
-    __ cmp(reg, Operand(reg));
-    __ b(ne, target);  // Never taken before patched.
+    __ cmp(reg, reg, cr0);
+    __ bne(target, cr0);  // Never taken before patched.
   }
 
   void EmitPatchInfo() {
-    // Block literal pool emission whilst recording patch site information.
-    Assembler::BlockConstPoolScope block_const_pool(masm_);
     if (patch_site_.is_bound()) {
       int delta_to_patch_site = masm_->InstructionsGeneratedSince(&patch_site_);
       Register reg;
-      reg.set_code(delta_to_patch_site / kOff12Mask);
-      __ cmp_raw_immediate(reg, delta_to_patch_site % kOff12Mask);
+      // I believe this is using reg as the high bits of of the offset
+      reg.set_code(delta_to_patch_site / kOff16Mask);
+      __ cmpi(reg, Operand(delta_to_patch_site % kOff16Mask));
 #ifdef DEBUG
       info_emitted_ = true;
 #endif
     } else {
       __ nop();  // Signals no inlined code.
     }
   }
 
  private:
   MacroAssembler* masm_;
   Label patch_site_;
 #ifdef DEBUG
   bool info_emitted_;
 #endif
 };
 
 
 // Generate code for a JS function.  On entry to the function the receiver
 // and arguments have been pushed on the stack left to right.  The actual
 // argument count matches the formal parameter count expected by the
 // function.
 //
 // The live registers are:
-//   o r1: the JS function object being called (i.e., ourselves)
+//   o r4: the JS function object being called (i.e., ourselves)
 //   o cp: our context
-//   o pp: our caller's constant pool pointer (if FLAG_enable_ool_constant_pool)
-//   o fp: our caller's frame pointer
+//   o fp: our caller's frame pointer (aka r31)
 //   o sp: stack pointer
 //   o lr: return address
+//   o ip: our own function entry (required by the prologue)
 //
 // The function builds a JS frame.  Please see JavaScriptFrameConstants in
-// frames-arm.h for its layout.
+// frames-ppc.h for its layout.
 void FullCodeGenerator::Generate() {
   CompilationInfo* info = info_;
   handler_table_ =
       isolate()->factory()->NewFixedArray(function()->handler_count(), TENURED);
 
   profiling_counter_ = isolate()->factory()->NewCell(
       Handle<Smi>(Smi::FromInt(FLAG_interrupt_budget), isolate()));
   SetFunctionPosition(function());
   Comment cmnt(masm_, "[ function compiled by full code generator");
 
   ProfileEntryHookStub::MaybeCallEntryHook(masm_);
 
 #ifdef DEBUG
   if (strlen(FLAG_stop_at) > 0 &&
       info->function()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) {
     __ stop("stop-at");
   }
 #endif
 
   // Sloppy mode functions and builtins need to replace the receiver with the
   // global proxy when called as functions (without an explicit receiver
   // object).
   if (info->strict_mode() == SLOPPY && !info->is_native()) {
     Label ok;
     int receiver_offset = info->scope()->num_parameters() * kPointerSize;
-    __ ldr(r2, MemOperand(sp, receiver_offset));
-    __ CompareRoot(r2, Heap::kUndefinedValueRootIndex);
-    __ b(ne, &ok);
+    __ LoadP(r5, MemOperand(sp, receiver_offset), r0);
+    __ CompareRoot(r5, Heap::kUndefinedValueRootIndex);
+    __ bne(&ok);
 
-    __ ldr(r2, GlobalObjectOperand());
-    __ ldr(r2, FieldMemOperand(r2, GlobalObject::kGlobalProxyOffset));
+    __ LoadP(r5, GlobalObjectOperand());
+    __ LoadP(r5, FieldMemOperand(r5, GlobalObject::kGlobalProxyOffset));
 
-    __ str(r2, MemOperand(sp, receiver_offset));
+    __ StoreP(r5, MemOperand(sp, receiver_offset), r0);
 
     __ bind(&ok);
   }
 
   // Open a frame scope to indicate that there is a frame on the stack.  The
   // MANUAL indicates that the scope shouldn't actually generate code to set up
   // the frame (that is done below).
   FrameScope frame_scope(masm_, StackFrame::MANUAL);
+  int prologue_offset = masm_->pc_offset();
 
-  info->set_prologue_offset(masm_->pc_offset());
-  __ Prologue(info->IsCodePreAgingActive());
+  if (prologue_offset) {
+    // Prologue logic requires it's starting address in ip and the
+    // corresponding offset from the function entry.
+    prologue_offset += Instruction::kInstrSize;
+    __ addi(ip, ip, Operand(prologue_offset));
+  }
+  info->set_prologue_offset(prologue_offset);
+  __ Prologue(info->IsCodePreAgingActive(), prologue_offset);
   info->AddNoFrameRange(0, masm_->pc_offset());
 
-  { Comment cmnt(masm_, "[ Allocate locals");
+  {
+    Comment cmnt(masm_, "[ Allocate locals");
     int locals_count = info->scope()->num_stack_slots();
     // Generators allocate locals, if any, in context slots.
     DCHECK(!info->function()->is_generator() || locals_count == 0);
     if (locals_count > 0) {
       if (locals_count >= 128) {
         Label ok;
-        __ sub(r9, sp, Operand(locals_count * kPointerSize));
-        __ LoadRoot(r2, Heap::kRealStackLimitRootIndex);
-        __ cmp(r9, Operand(r2));
-        __ b(hs, &ok);
+        __ Add(ip, sp, -(locals_count * kPointerSize), r0);
+        __ LoadRoot(r5, Heap::kRealStackLimitRootIndex);
+        __ cmpl(ip, r5);
+        __ bc_short(ge, &ok);
         __ InvokeBuiltin(Builtins::STACK_OVERFLOW, CALL_FUNCTION);
         __ bind(&ok);
       }
-      __ LoadRoot(r9, Heap::kUndefinedValueRootIndex);
+      __ LoadRoot(ip, Heap::kUndefinedValueRootIndex);
       int kMaxPushes = FLAG_optimize_for_size ? 4 : 32;
       if (locals_count >= kMaxPushes) {
         int loop_iterations = locals_count / kMaxPushes;
-        __ mov(r2, Operand(loop_iterations));
+        __ mov(r5, Operand(loop_iterations));
+        __ mtctr(r5);
         Label loop_header;
         __ bind(&loop_header);
         // Do pushes.
         for (int i = 0; i < kMaxPushes; i++) {
-          __ push(r9);
+          __ push(ip);
         }
         // Continue loop if not done.
-        __ sub(r2, r2, Operand(1), SetCC);
-        __ b(&loop_header, ne);
+        __ bdnz(&loop_header);
       }
       int remaining = locals_count % kMaxPushes;
       // Emit the remaining pushes.
-      for (int i  = 0; i < remaining; i++) {
-        __ push(r9);
+      for (int i = 0; i < remaining; i++) {
+        __ push(ip);
       }
     }
   }
 
   bool function_in_register = true;
 
   // Possibly allocate a local context.
   int heap_slots = info->scope()->num_heap_slots() - Context::MIN_CONTEXT_SLOTS;
   if (heap_slots > 0) {
-    // Argument to NewContext is the function, which is still in r1.
+    // Argument to NewContext is the function, which is still in r4.
     Comment cmnt(masm_, "[ Allocate context");
     bool need_write_barrier = true;
     if (FLAG_harmony_scoping && info->scope()->is_global_scope()) {
-      __ push(r1);
+      __ push(r4);
       __ Push(info->scope()->GetScopeInfo());
       __ CallRuntime(Runtime::kNewGlobalContext, 2);
     } else if (heap_slots <= FastNewContextStub::kMaximumSlots) {
       FastNewContextStub stub(isolate(), heap_slots);
       __ CallStub(&stub);
       // Result of FastNewContextStub is always in new space.
       need_write_barrier = false;
     } else {
-      __ push(r1);
+      __ push(r4);
       __ CallRuntime(Runtime::kNewFunctionContext, 1);
     }
     function_in_register = false;
-    // Context is returned in r0.  It replaces the context passed to us.
+    // Context is returned in r3.  It replaces the context passed to us.
     // It's saved in the stack and kept live in cp.
-    __ mov(cp, r0);
-    __ str(r0, MemOperand(fp, StandardFrameConstants::kContextOffset));
+    __ mr(cp, r3);
+    __ StoreP(r3, MemOperand(fp, StandardFrameConstants::kContextOffset));
     // Copy any necessary parameters into the context.
     int num_parameters = info->scope()->num_parameters();
     for (int i = 0; i < num_parameters; i++) {
       Variable* var = scope()->parameter(i);
       if (var->IsContextSlot()) {
         int parameter_offset = StandardFrameConstants::kCallerSPOffset +
-            (num_parameters - 1 - i) * kPointerSize;
+                               (num_parameters - 1 - i) * kPointerSize;
         // Load parameter from stack.
-        __ ldr(r0, MemOperand(fp, parameter_offset));
+        __ LoadP(r3, MemOperand(fp, parameter_offset), r0);
         // Store it in the context.
         MemOperand target = ContextOperand(cp, var->index());
-        __ str(r0, target);
+        __ StoreP(r3, target, r0);
 
         // Update the write barrier.
         if (need_write_barrier) {
-          __ RecordWriteContextSlot(
-              cp, target.offset(), r0, r3, kLRHasBeenSaved, kDontSaveFPRegs);
+          __ RecordWriteContextSlot(cp, target.offset(), r3, r6,
+                                    kLRHasBeenSaved, kDontSaveFPRegs);
         } else if (FLAG_debug_code) {
           Label done;
-          __ JumpIfInNewSpace(cp, r0, &done);
+          __ JumpIfInNewSpace(cp, r3, &done);
           __ Abort(kExpectedNewSpaceObject);
           __ bind(&done);
         }
       }
     }
   }
 
   Variable* arguments = scope()->arguments();
   if (arguments != NULL) {
     // Function uses arguments object.
     Comment cmnt(masm_, "[ Allocate arguments object");
     if (!function_in_register) {
       // Load this again, if it's used by the local context below.
-      __ ldr(r3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
+      __ LoadP(r6, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
     } else {
-      __ mov(r3, r1);
+      __ mr(r6, r4);
     }
     // Receiver is just before the parameters on the caller's stack.
     int num_parameters = info->scope()->num_parameters();
     int offset = num_parameters * kPointerSize;
-    __ add(r2, fp,
-           Operand(StandardFrameConstants::kCallerSPOffset + offset));
-    __ mov(r1, Operand(Smi::FromInt(num_parameters)));
-    __ Push(r3, r2, r1);
+    __ addi(r5, fp, Operand(StandardFrameConstants::kCallerSPOffset + offset));
+    __ LoadSmiLiteral(r4, Smi::FromInt(num_parameters));
+    __ Push(r6, r5, r4);
 
     // Arguments to ArgumentsAccessStub:
     //   function, receiver address, parameter count.
     // The stub will rewrite receiever and parameter count if the previous
     // stack frame was an arguments adapter frame.
     ArgumentsAccessStub::Type type;
     if (strict_mode() == STRICT) {
       type = ArgumentsAccessStub::NEW_STRICT;
     } else if (function()->has_duplicate_parameters()) {
       type = ArgumentsAccessStub::NEW_SLOPPY_SLOW;
     } else {
       type = ArgumentsAccessStub::NEW_SLOPPY_FAST;
     }
     ArgumentsAccessStub stub(isolate(), type);
     __ CallStub(&stub);
 
-    SetVar(arguments, r0, r1, r2);
+    SetVar(arguments, r3, r4, r5);
   }
 
   if (FLAG_trace) {
     __ CallRuntime(Runtime::kTraceEnter, 0);
   }
 
   // Visit the declarations and body unless there is an illegal
   // redeclaration.
   if (scope()->HasIllegalRedeclaration()) {
     Comment cmnt(masm_, "[ Declarations");
     scope()->VisitIllegalRedeclaration(this);
 
   } else {
     PrepareForBailoutForId(BailoutId::FunctionEntry(), NO_REGISTERS);
-    { Comment cmnt(masm_, "[ Declarations");
+    {
+      Comment cmnt(masm_, "[ Declarations");
       // For named function expressions, declare the function name as a
       // constant.
       if (scope()->is_function_scope() && scope()->function() != NULL) {
         VariableDeclaration* function = scope()->function();
         DCHECK(function->proxy()->var()->mode() == CONST ||
                function->proxy()->var()->mode() == CONST_LEGACY);
         DCHECK(function->proxy()->var()->location() != Variable::UNALLOCATED);
         VisitVariableDeclaration(function);
       }
       VisitDeclarations(scope()->declarations());
     }
 
-    { Comment cmnt(masm_, "[ Stack check");
+    {
+      Comment cmnt(masm_, "[ Stack check");
       PrepareForBailoutForId(BailoutId::Declarations(), NO_REGISTERS);
       Label ok;
       __ LoadRoot(ip, Heap::kStackLimitRootIndex);
-      __ cmp(sp, Operand(ip));
-      __ b(hs, &ok);
-      Handle<Code> stack_check = isolate()->builtins()->StackCheck();
-      PredictableCodeSizeScope predictable(masm_,
-          masm_->CallSize(stack_check, RelocInfo::CODE_TARGET));
-      __ Call(stack_check, RelocInfo::CODE_TARGET);
+      __ cmpl(sp, ip);
+      __ bc_short(ge, &ok);
+      __ Call(isolate()->builtins()->StackCheck(), RelocInfo::CODE_TARGET);
       __ bind(&ok);
     }
 
-    { Comment cmnt(masm_, "[ Body");
+    {
+      Comment cmnt(masm_, "[ Body");
       DCHECK(loop_depth() == 0);
       VisitStatements(function()->body());
       DCHECK(loop_depth() == 0);
     }
   }
 
   // Always emit a 'return undefined' in case control fell off the end of
   // the body.
-  { Comment cmnt(masm_, "[ return <undefined>;");
-    __ LoadRoot(r0, Heap::kUndefinedValueRootIndex);
+  {
+    Comment cmnt(masm_, "[ return <undefined>;");
+    __ LoadRoot(r3, Heap::kUndefinedValueRootIndex);
   }
   EmitReturnSequence();
-
-  // Force emit the constant pool, so it doesn't get emitted in the middle
-  // of the back edge table.
-  masm()->CheckConstPool(true, false);
 }
 
 
 void FullCodeGenerator::ClearAccumulator() {
-  __ mov(r0, Operand(Smi::FromInt(0)));
+  __ LoadSmiLiteral(r3, Smi::FromInt(0));
 }
 
 
 void FullCodeGenerator::EmitProfilingCounterDecrement(int delta) {
-  __ mov(r2, Operand(profiling_counter_));
-  __ ldr(r3, FieldMemOperand(r2, Cell::kValueOffset));
-  __ sub(r3, r3, Operand(Smi::FromInt(delta)), SetCC);
-  __ str(r3, FieldMemOperand(r2, Cell::kValueOffset));
+  __ mov(r5, Operand(profiling_counter_));
+  __ LoadP(r6, FieldMemOperand(r5, Cell::kValueOffset));
+  __ SubSmiLiteral(r6, r6, Smi::FromInt(delta), r0);
+  __ StoreP(r6, FieldMemOperand(r5, Cell::kValueOffset), r0);
 }
 
 
-#ifdef CAN_USE_ARMV7_INSTRUCTIONS
-static const int kProfileCounterResetSequenceLength = 5 * Assembler::kInstrSize;
-#else
-static const int kProfileCounterResetSequenceLength = 7 * Assembler::kInstrSize;
-#endif
-
-
 void FullCodeGenerator::EmitProfilingCounterReset() {
-  Assembler::BlockConstPoolScope block_const_pool(masm_);
-  PredictableCodeSizeScope predictable_code_size_scope(
-      masm_, kProfileCounterResetSequenceLength);
-  Label start;
-  __ bind(&start);
   int reset_value = FLAG_interrupt_budget;
   if (info_->is_debug()) {
     // Detect debug break requests as soon as possible.
     reset_value = FLAG_interrupt_budget >> 4;
   }
-  __ mov(r2, Operand(profiling_counter_));
-  // The mov instruction above can be either 1 to 3 (for ARMv7) or 1 to 5
-  // instructions (for ARMv6) depending upon whether it is an extended constant
-  // pool - insert nop to compensate.
-  int expected_instr_count =
-      (kProfileCounterResetSequenceLength / Assembler::kInstrSize) - 2;
-  DCHECK(masm_->InstructionsGeneratedSince(&start) <= expected_instr_count);
-  while (masm_->InstructionsGeneratedSince(&start) != expected_instr_count) {
-    __ nop();
-  }
-  __ mov(r3, Operand(Smi::FromInt(reset_value)));
-  __ str(r3, FieldMemOperand(r2, Cell::kValueOffset));
+  __ mov(r5, Operand(profiling_counter_));
+  __ LoadSmiLiteral(r6, Smi::FromInt(reset_value));
+  __ StoreP(r6, FieldMemOperand(r5, Cell::kValueOffset), r0);
 }
 
 
 void FullCodeGenerator::EmitBackEdgeBookkeeping(IterationStatement* stmt,
                                                 Label* back_edge_target) {
   Comment cmnt(masm_, "[ Back edge bookkeeping");
-  // Block literal pools whilst emitting back edge code.
-  Assembler::BlockConstPoolScope block_const_pool(masm_);
   Label ok;
 
   DCHECK(back_edge_target->is_bound());
-  int distance = masm_->SizeOfCodeGeneratedSince(back_edge_target);
-  int weight = Min(kMaxBackEdgeWeight,
-                   Max(1, distance / kCodeSizeMultiplier));
+  int distance = masm_->SizeOfCodeGeneratedSince(back_edge_target) +
+                 kCodeSizeMultiplier / 2;
+  int weight = Min(kMaxBackEdgeWeight, Max(1, distance / kCodeSizeMultiplier));
   EmitProfilingCounterDecrement(weight);
-  __ b(pl, &ok);
-  __ Call(isolate()->builtins()->InterruptCheck(), RelocInfo::CODE_TARGET);
+  {
+    Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm_);
+    // BackEdgeTable::PatchAt manipulates this sequence.
+    __ cmpi(r6, Operand::Zero());
+    __ bc_short(ge, &ok);
+    __ Call(isolate()->builtins()->InterruptCheck(), RelocInfo::CODE_TARGET);
 
-  // Record a mapping of this PC offset to the OSR id.  This is used to find
-  // the AST id from the unoptimized code in order to use it as a key into
-  // the deoptimization input data found in the optimized code.
-  RecordBackEdge(stmt->OsrEntryId());
-
+    // Record a mapping of this PC offset to the OSR id.  This is used to find
+    // the AST id from the unoptimized code in order to use it as a key into
+    // the deoptimization input data found in the optimized code.
+    RecordBackEdge(stmt->OsrEntryId());
+  }
   EmitProfilingCounterReset();
 
   __ bind(&ok);
   PrepareForBailoutForId(stmt->EntryId(), NO_REGISTERS);
   // Record a mapping of the OSR id to this PC.  This is used if the OSR
   // entry becomes the target of a bailout.  We don't expect it to be, but
   // we want it to work if it is.
   PrepareForBailoutForId(stmt->OsrEntryId(), NO_REGISTERS);
 }
 
 
 void FullCodeGenerator::EmitReturnSequence() {
   Comment cmnt(masm_, "[ Return sequence");
   if (return_label_.is_bound()) {
     __ b(&return_label_);
   } else {
     __ bind(&return_label_);
     if (FLAG_trace) {
       // Push the return value on the stack as the parameter.
-      // Runtime::TraceExit returns its parameter in r0.
-      __ push(r0);
+      // Runtime::TraceExit returns its parameter in r3
+      __ push(r3);
       __ CallRuntime(Runtime::kTraceExit, 1);
     }
     // Pretend that the exit is a backwards jump to the entry.
     int weight = 1;
     if (info_->ShouldSelfOptimize()) {
       weight = FLAG_interrupt_budget / FLAG_self_opt_count;
     } else {
-      int distance = masm_->pc_offset();
-      weight = Min(kMaxBackEdgeWeight,
-                   Max(1, distance / kCodeSizeMultiplier));
+      int distance = masm_->pc_offset() + kCodeSizeMultiplier / 2;
+      weight = Min(kMaxBackEdgeWeight, Max(1, distance / kCodeSizeMultiplier));
     }
     EmitProfilingCounterDecrement(weight);
     Label ok;
-    __ b(pl, &ok);
-    __ push(r0);
-    __ Call(isolate()->builtins()->InterruptCheck(),
-            RelocInfo::CODE_TARGET);
-    __ pop(r0);
+    __ cmpi(r6, Operand::Zero());
+    __ bge(&ok);
+    __ push(r3);
+    __ Call(isolate()->builtins()->InterruptCheck(), RelocInfo::CODE_TARGET);
+    __ pop(r3);
     EmitProfilingCounterReset();
     __ bind(&ok);
 
 #ifdef DEBUG
     // Add a label for checking the size of the code used for returning.
     Label check_exit_codesize;
     __ bind(&check_exit_codesize);
 #endif
     // Make sure that the constant pool is not emitted inside of the return
     // sequence.
-    { Assembler::BlockConstPoolScope block_const_pool(masm_);
+    {
+      Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm_);
       int32_t sp_delta = (info_->scope()->num_parameters() + 1) * kPointerSize;
       CodeGenerator::RecordPositions(masm_, function()->end_position() - 1);
-      // TODO(svenpanne) The code below is sometimes 4 words, sometimes 5!
-      PredictableCodeSizeScope predictable(masm_, -1);
       __ RecordJSReturn();
-      int no_frame_start = __ LeaveFrame(StackFrame::JAVA_SCRIPT);
-      { ConstantPoolUnavailableScope constant_pool_unavailable(masm_);
-        __ add(sp, sp, Operand(sp_delta));
-        __ Jump(lr);
-        info_->AddNoFrameRange(no_frame_start, masm_->pc_offset());
+      int no_frame_start = __ LeaveFrame(StackFrame::JAVA_SCRIPT, sp_delta);
+#if V8_TARGET_ARCH_PPC64
+      // With 64bit we may need nop() instructions to ensure we have
+      // enough space to SetDebugBreakAtReturn()
+      if (is_int16(sp_delta)) {
+#if !V8_OOL_CONSTANT_POOL
+        masm_->nop();
+#endif
+        masm_->nop();
       }
+#endif
+      __ blr();
+      info_->AddNoFrameRange(no_frame_start, masm_->pc_offset());
     }
 
 #ifdef DEBUG
     // Check that the size of the code used for returning is large enough
     // for the debugger's requirements.
     DCHECK(Assembler::kJSReturnSequenceInstructions <=
            masm_->InstructionsGeneratedSince(&check_exit_codesize));
 #endif
   }
 }
@@ skipping 19 matching lines @@
 
 void FullCodeGenerator::TestContext::Plug(Variable* var) const {
   DCHECK(var->IsStackAllocated() || var->IsContextSlot());
   // For simplicity we always test the accumulator register.
   codegen()->GetVar(result_register(), var);
   codegen()->PrepareForBailoutBeforeSplit(condition(), false, NULL, NULL);
   codegen()->DoTest(this);
 }
 
 
-void FullCodeGenerator::EffectContext::Plug(Heap::RootListIndex index) const {
-}
+void FullCodeGenerator::EffectContext::Plug(Heap::RootListIndex index) const {}
 
 
 void FullCodeGenerator::AccumulatorValueContext::Plug(
     Heap::RootListIndex index) const {
   __ LoadRoot(result_register(), index);
 }
 
 
 void FullCodeGenerator::StackValueContext::Plug(
     Heap::RootListIndex index) const {
   __ LoadRoot(result_register(), index);
   __ push(result_register());
 }
 
 
 void FullCodeGenerator::TestContext::Plug(Heap::RootListIndex index) const {
-  codegen()->PrepareForBailoutBeforeSplit(condition(),
-                                          true,
-                                          true_label_,
+  codegen()->PrepareForBailoutBeforeSplit(condition(), true, true_label_,
                                           false_label_);
   if (index == Heap::kUndefinedValueRootIndex ||
       index == Heap::kNullValueRootIndex ||
       index == Heap::kFalseValueRootIndex) {
     if (false_label_ != fall_through_) __ b(false_label_);
   } else if (index == Heap::kTrueValueRootIndex) {
     if (true_label_ != fall_through_) __ b(true_label_);
   } else {
     __ LoadRoot(result_register(), index);
     codegen()->DoTest(this);
   }
 }
 
 
-void FullCodeGenerator::EffectContext::Plug(Handle<Object> lit) const {
-}
+void FullCodeGenerator::EffectContext::Plug(Handle<Object> lit) const {}
 
 
 void FullCodeGenerator::AccumulatorValueContext::Plug(
     Handle<Object> lit) const {
   __ mov(result_register(), Operand(lit));
 }
 
 
 void FullCodeGenerator::StackValueContext::Plug(Handle<Object> lit) const {
   // Immediates cannot be pushed directly.
   __ mov(result_register(), Operand(lit));
   __ push(result_register());
 }
 
 
 void FullCodeGenerator::TestContext::Plug(Handle<Object> lit) const {
-  codegen()->PrepareForBailoutBeforeSplit(condition(),
-                                          true,
-                                          true_label_,
+  codegen()->PrepareForBailoutBeforeSplit(condition(), true, true_label_,
                                           false_label_);
   DCHECK(!lit->IsUndetectableObject());  // There are no undetectable literals.
   if (lit->IsUndefined() || lit->IsNull() || lit->IsFalse()) {
     if (false_label_ != fall_through_) __ b(false_label_);
   } else if (lit->IsTrue() || lit->IsJSObject()) {
     if (true_label_ != fall_through_) __ b(true_label_);
   } else if (lit->IsString()) {
     if (String::cast(*lit)->length() == 0) {
       if (false_label_ != fall_through_) __ b(false_label_);
     } else {
@@ skipping 14 matching lines @@
 
 
 void FullCodeGenerator::EffectContext::DropAndPlug(int count,
                                                    Register reg) const {
   DCHECK(count > 0);
   __ Drop(count);
 }
 
 
 void FullCodeGenerator::AccumulatorValueContext::DropAndPlug(
-    int count,
-    Register reg) const {
+    int count, Register reg) const {
   DCHECK(count > 0);
   __ Drop(count);
   __ Move(result_register(), reg);
 }
 
 
 void FullCodeGenerator::StackValueContext::DropAndPlug(int count,
                                                        Register reg) const {
   DCHECK(count > 0);
   if (count > 1) __ Drop(count - 1);
-  __ str(reg, MemOperand(sp, 0));
+  __ StoreP(reg, MemOperand(sp, 0));
 }
 
 
 void FullCodeGenerator::TestContext::DropAndPlug(int count,
                                                  Register reg) const {
   DCHECK(count > 0);
   // For simplicity we always test the accumulator register.
   __ Drop(count);
   __ Move(result_register(), reg);
   codegen()->PrepareForBailoutBeforeSplit(condition(), false, NULL, NULL);
   codegen()->DoTest(this);
 }
 
 
 void FullCodeGenerator::EffectContext::Plug(Label* materialize_true,
                                             Label* materialize_false) const {
   DCHECK(materialize_true == materialize_false);
   __ bind(materialize_true);
 }
 
 
 void FullCodeGenerator::AccumulatorValueContext::Plug(
-    Label* materialize_true,
-    Label* materialize_false) const {
+    Label* materialize_true, Label* materialize_false) const {
   Label done;
   __ bind(materialize_true);
   __ LoadRoot(result_register(), Heap::kTrueValueRootIndex);
-  __ jmp(&done);
+  __ b(&done);
   __ bind(materialize_false);
   __ LoadRoot(result_register(), Heap::kFalseValueRootIndex);
   __ bind(&done);
 }
 
 
 void FullCodeGenerator::StackValueContext::Plug(
-    Label* materialize_true,
-    Label* materialize_false) const {
+    Label* materialize_true, Label* materialize_false) const {
   Label done;
   __ bind(materialize_true);
   __ LoadRoot(ip, Heap::kTrueValueRootIndex);
-  __ jmp(&done);
+  __ b(&done);
   __ bind(materialize_false);
   __ LoadRoot(ip, Heap::kFalseValueRootIndex);
   __ bind(&done);
   __ push(ip);
 }
 
 
 void FullCodeGenerator::TestContext::Plug(Label* materialize_true,
                                           Label* materialize_false) const {
   DCHECK(materialize_true == true_label_);
   DCHECK(materialize_false == false_label_);
 }
 
 
-void FullCodeGenerator::EffectContext::Plug(bool flag) const {
-}
+void FullCodeGenerator::EffectContext::Plug(bool flag) const {}
 
 
 void FullCodeGenerator::AccumulatorValueContext::Plug(bool flag) const {
   Heap::RootListIndex value_root_index =
       flag ? Heap::kTrueValueRootIndex : Heap::kFalseValueRootIndex;
   __ LoadRoot(result_register(), value_root_index);
 }
 
 
 void FullCodeGenerator::StackValueContext::Plug(bool flag) const {
   Heap::RootListIndex value_root_index =
       flag ? Heap::kTrueValueRootIndex : Heap::kFalseValueRootIndex;
   __ LoadRoot(ip, value_root_index);
   __ push(ip);
 }
 
 
 void FullCodeGenerator::TestContext::Plug(bool flag) const {
-  codegen()->PrepareForBailoutBeforeSplit(condition(),
-                                          true,
-                                          true_label_,
+  codegen()->PrepareForBailoutBeforeSplit(condition(), true, true_label_,
                                           false_label_);
   if (flag) {
     if (true_label_ != fall_through_) __ b(true_label_);
   } else {
     if (false_label_ != fall_through_) __ b(false_label_);
   }
 }
 
 
-void FullCodeGenerator::DoTest(Expression* condition,
-                               Label* if_true,
-                               Label* if_false,
-                               Label* fall_through) {
+void FullCodeGenerator::DoTest(Expression* condition, Label* if_true,
+                               Label* if_false, Label* fall_through) {
   Handle<Code> ic = ToBooleanStub::GetUninitialized(isolate());
   CallIC(ic, condition->test_id());
-  __ tst(result_register(), result_register());
+  __ cmpi(result_register(), Operand::Zero());
   Split(ne, if_true, if_false, fall_through);
 }
 
 
-void FullCodeGenerator::Split(Condition cond,
-                              Label* if_true,
-                              Label* if_false,
-                              Label* fall_through) {
+void FullCodeGenerator::Split(Condition cond, Label* if_true, Label* if_false,
+                              Label* fall_through, CRegister cr) {
   if (if_false == fall_through) {
-    __ b(cond, if_true);
+    __ b(cond, if_true, cr);
   } else if (if_true == fall_through) {
-    __ b(NegateCondition(cond), if_false);
+    __ b(NegateCondition(cond), if_false, cr);
   } else {
-    __ b(cond, if_true);
+    __ b(cond, if_true, cr);
     __ b(if_false);
   }
 }
 
 
 MemOperand FullCodeGenerator::StackOperand(Variable* var) {
   DCHECK(var->IsStackAllocated());
   // Offset is negative because higher indexes are at lower addresses.
   int offset = -var->index() * kPointerSize;
   // Adjust by a (parameter or local) base offset.
@@ skipping 14 matching lines @@
     return ContextOperand(scratch, var->index());
   } else {
     return StackOperand(var);
   }
 }
 
 
 void FullCodeGenerator::GetVar(Register dest, Variable* var) {
   // Use destination as scratch.
   MemOperand location = VarOperand(var, dest);
-  __ ldr(dest, location);
+  __ LoadP(dest, location, r0);
 }
 
 
-void FullCodeGenerator::SetVar(Variable* var,
-                               Register src,
-                               Register scratch0,
+void FullCodeGenerator::SetVar(Variable* var, Register src, Register scratch0,
                                Register scratch1) {
   DCHECK(var->IsContextSlot() || var->IsStackAllocated());
   DCHECK(!scratch0.is(src));
   DCHECK(!scratch0.is(scratch1));
   DCHECK(!scratch1.is(src));
   MemOperand location = VarOperand(var, scratch0);
-  __ str(src, location);
+  __ StoreP(src, location, r0);
 
   // Emit the write barrier code if the location is in the heap.
   if (var->IsContextSlot()) {
-    __ RecordWriteContextSlot(scratch0,
-                              location.offset(),
-                              src,
-                              scratch1,
-                              kLRHasBeenSaved,
-                              kDontSaveFPRegs);
+    __ RecordWriteContextSlot(scratch0, location.offset(), src, scratch1,
+                              kLRHasBeenSaved, kDontSaveFPRegs);
   }
 }
 
 
 void FullCodeGenerator::PrepareForBailoutBeforeSplit(Expression* expr,
                                                      bool should_normalize,
                                                      Label* if_true,
                                                      Label* if_false) {
   // Only prepare for bailouts before splits if we're in a test
   // context. Otherwise, we let the Visit function deal with the
   // preparation to avoid preparing with the same AST id twice.
   if (!context()->IsTest() || !info_->IsOptimizable()) return;
 
   Label skip;
   if (should_normalize) __ b(&skip);
   PrepareForBailout(expr, TOS_REG);
   if (should_normalize) {
     __ LoadRoot(ip, Heap::kTrueValueRootIndex);
-    __ cmp(r0, ip);
+    __ cmp(r3, ip);
     Split(eq, if_true, if_false, NULL);
     __ bind(&skip);
   }
 }
 
 
 void FullCodeGenerator::EmitDebugCheckDeclarationContext(Variable* variable) {
   // The variable in the declaration always resides in the current function
   // context.
   DCHECK_EQ(0, scope()->ContextChainLength(variable->scope()));
   if (generate_debug_code_) {
     // Check that we're not inside a with or catch context.
-    __ ldr(r1, FieldMemOperand(cp, HeapObject::kMapOffset));
-    __ CompareRoot(r1, Heap::kWithContextMapRootIndex);
+    __ LoadP(r4, FieldMemOperand(cp, HeapObject::kMapOffset));
+    __ CompareRoot(r4, Heap::kWithContextMapRootIndex);
     __ Check(ne, kDeclarationInWithContext);
-    __ CompareRoot(r1, Heap::kCatchContextMapRootIndex);
+    __ CompareRoot(r4, Heap::kCatchContextMapRootIndex);
     __ Check(ne, kDeclarationInCatchContext);
   }
 }
 
 
 void FullCodeGenerator::VisitVariableDeclaration(
     VariableDeclaration* declaration) {
   // If it was not possible to allocate the variable at compile time, we
   // need to "declare" it at runtime to make sure it actually exists in the
   // local context.
   VariableProxy* proxy = declaration->proxy();
   VariableMode mode = declaration->mode();
   Variable* variable = proxy->var();
   bool hole_init = mode == LET || mode == CONST || mode == CONST_LEGACY;
   switch (variable->location()) {
     case Variable::UNALLOCATED:
       globals_->Add(variable->name(), zone());
       globals_->Add(variable->binding_needs_init()
                         ? isolate()->factory()->the_hole_value()
                         : isolate()->factory()->undefined_value(),
                     zone());
       break;
 
     case Variable::PARAMETER:
     case Variable::LOCAL:
       if (hole_init) {
         Comment cmnt(masm_, "[ VariableDeclaration");
         __ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
-        __ str(ip, StackOperand(variable));
+        __ StoreP(ip, StackOperand(variable));
       }
       break;
 
     case Variable::CONTEXT:
       if (hole_init) {
         Comment cmnt(masm_, "[ VariableDeclaration");
         EmitDebugCheckDeclarationContext(variable);
         __ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
-        __ str(ip, ContextOperand(cp, variable->index()));
+        __ StoreP(ip, ContextOperand(cp, variable->index()), r0);
         // No write barrier since the_hole_value is in old space.
         PrepareForBailoutForId(proxy->id(), NO_REGISTERS);
       }
       break;
 
     case Variable::LOOKUP: {
       Comment cmnt(masm_, "[ VariableDeclaration");
-      __ mov(r2, Operand(variable->name()));
+      __ mov(r5, Operand(variable->name()));
       // Declaration nodes are always introduced in one of four modes.
       DCHECK(IsDeclaredVariableMode(mode));
       PropertyAttributes attr =
           IsImmutableVariableMode(mode) ? READ_ONLY : NONE;
-      __ mov(r1, Operand(Smi::FromInt(attr)));
+      __ LoadSmiLiteral(r4, Smi::FromInt(attr));
       // Push initial value, if any.
       // Note: For variables we must not push an initial value (such as
       // 'undefined') because we may have a (legal) redeclaration and we
       // must not destroy the current value.
       if (hole_init) {
-        __ LoadRoot(r0, Heap::kTheHoleValueRootIndex);
-        __ Push(cp, r2, r1, r0);
+        __ LoadRoot(r3, Heap::kTheHoleValueRootIndex);
+        __ Push(cp, r5, r4, r3);
       } else {
-        __ mov(r0, Operand(Smi::FromInt(0)));  // Indicates no initial value.
-        __ Push(cp, r2, r1, r0);
+        __ LoadSmiLiteral(r3, Smi::FromInt(0));  // Indicates no initial value.
+        __ Push(cp, r5, r4, r3);
       }
       __ CallRuntime(Runtime::kDeclareLookupSlot, 4);
       break;
     }
   }
 }
 
 
 void FullCodeGenerator::VisitFunctionDeclaration(
     FunctionDeclaration* declaration) {
   VariableProxy* proxy = declaration->proxy();
   Variable* variable = proxy->var();
   switch (variable->location()) {
     case Variable::UNALLOCATED: {
       globals_->Add(variable->name(), zone());
       Handle<SharedFunctionInfo> function =
           Compiler::BuildFunctionInfo(declaration->fun(), script(), info_);
       // Check for stack-overflow exception.
       if (function.is_null()) return SetStackOverflow();
       globals_->Add(function, zone());
       break;
     }
 
     case Variable::PARAMETER:
     case Variable::LOCAL: {
       Comment cmnt(masm_, "[ FunctionDeclaration");
       VisitForAccumulatorValue(declaration->fun());
-      __ str(result_register(), StackOperand(variable));
+      __ StoreP(result_register(), StackOperand(variable));
       break;
     }
 
     case Variable::CONTEXT: {
       Comment cmnt(masm_, "[ FunctionDeclaration");
       EmitDebugCheckDeclarationContext(variable);
       VisitForAccumulatorValue(declaration->fun());
-      __ str(result_register(), ContextOperand(cp, variable->index()));
+      __ StoreP(result_register(), ContextOperand(cp, variable->index()), r0);
       int offset = Context::SlotOffset(variable->index());
       // We know that we have written a function, which is not a smi.
-      __ RecordWriteContextSlot(cp,
-                                offset,
-                                result_register(),
-                                r2,
-                                kLRHasBeenSaved,
-                                kDontSaveFPRegs,
-                                EMIT_REMEMBERED_SET,
-                                OMIT_SMI_CHECK);
+      __ RecordWriteContextSlot(cp, offset, result_register(), r5,
+                                kLRHasBeenSaved, kDontSaveFPRegs,
+                                EMIT_REMEMBERED_SET, OMIT_SMI_CHECK);
       PrepareForBailoutForId(proxy->id(), NO_REGISTERS);
       break;
     }
 
     case Variable::LOOKUP: {
       Comment cmnt(masm_, "[ FunctionDeclaration");
-      __ mov(r2, Operand(variable->name()));
-      __ mov(r1, Operand(Smi::FromInt(NONE)));
-      __ Push(cp, r2, r1);
+      __ mov(r5, Operand(variable->name()));
+      __ LoadSmiLiteral(r4, Smi::FromInt(NONE));
+      __ Push(cp, r5, r4);
       // Push initial value for function declaration.
       VisitForStackValue(declaration->fun());
       __ CallRuntime(Runtime::kDeclareLookupSlot, 4);
       break;
     }
   }
 }
 
 
 void FullCodeGenerator::VisitModuleDeclaration(ModuleDeclaration* declaration) {
   Variable* variable = declaration->proxy()->var();
   DCHECK(variable->location() == Variable::CONTEXT);
   DCHECK(variable->interface()->IsFrozen());
 
   Comment cmnt(masm_, "[ ModuleDeclaration");
   EmitDebugCheckDeclarationContext(variable);
 
   // Load instance object.
-  __ LoadContext(r1, scope_->ContextChainLength(scope_->GlobalScope()));
-  __ ldr(r1, ContextOperand(r1, variable->interface()->Index()));
-  __ ldr(r1, ContextOperand(r1, Context::EXTENSION_INDEX));
+  __ LoadContext(r4, scope_->ContextChainLength(scope_->GlobalScope()));
+  __ LoadP(r4, ContextOperand(r4, variable->interface()->Index()));
+  __ LoadP(r4, ContextOperand(r4, Context::EXTENSION_INDEX));
 
   // Assign it.
-  __ str(r1, ContextOperand(cp, variable->index()));
+  __ StoreP(r4, ContextOperand(cp, variable->index()), r0);
   // We know that we have written a module, which is not a smi.
-  __ RecordWriteContextSlot(cp,
-                            Context::SlotOffset(variable->index()),
-                            r1,
-                            r3,
-                            kLRHasBeenSaved,
-                            kDontSaveFPRegs,
-                            EMIT_REMEMBERED_SET,
-                            OMIT_SMI_CHECK);
+  __ RecordWriteContextSlot(cp, Context::SlotOffset(variable->index()), r4, r6,
+                            kLRHasBeenSaved, kDontSaveFPRegs,
+                            EMIT_REMEMBERED_SET, OMIT_SMI_CHECK);
   PrepareForBailoutForId(declaration->proxy()->id(), NO_REGISTERS);
 
   // Traverse into body.
   Visit(declaration->module());
 }
 
 
 void FullCodeGenerator::VisitImportDeclaration(ImportDeclaration* declaration) {
   VariableProxy* proxy = declaration->proxy();
   Variable* variable = proxy->var();
@@ skipping 18 matching lines @@
 
 
 void FullCodeGenerator::VisitExportDeclaration(ExportDeclaration* declaration) {
   // TODO(rossberg)
 }
 
 
 void FullCodeGenerator::DeclareGlobals(Handle<FixedArray> pairs) {
   // Call the runtime to declare the globals.
   // The context is the first argument.
-  __ mov(r1, Operand(pairs));
-  __ mov(r0, Operand(Smi::FromInt(DeclareGlobalsFlags())));
-  __ Push(cp, r1, r0);
+  __ mov(r4, Operand(pairs));
+  __ LoadSmiLiteral(r3, Smi::FromInt(DeclareGlobalsFlags()));
+  __ Push(cp, r4, r3);
   __ CallRuntime(Runtime::kDeclareGlobals, 3);
   // Return value is ignored.
 }
 
 
 void FullCodeGenerator::DeclareModules(Handle<FixedArray> descriptions) {
   // Call the runtime to declare the modules.
   __ Push(descriptions);
   __ CallRuntime(Runtime::kDeclareModules, 1);
   // Return value is ignored.
@@ skipping 25 matching lines @@
     }
 
     Comment cmnt(masm_, "[ Case comparison");
     __ bind(&next_test);
     next_test.Unuse();
 
     // Compile the label expression.
     VisitForAccumulatorValue(clause->label());
 
     // Perform the comparison as if via '==='.
-    __ ldr(r1, MemOperand(sp, 0));  // Switch value.
+    __ LoadP(r4, MemOperand(sp, 0));  // Switch value.
     bool inline_smi_code = ShouldInlineSmiCase(Token::EQ_STRICT);
     JumpPatchSite patch_site(masm_);
     if (inline_smi_code) {
       Label slow_case;
-      __ orr(r2, r1, r0);
-      patch_site.EmitJumpIfNotSmi(r2, &slow_case);
+      __ orx(r5, r4, r3);
+      patch_site.EmitJumpIfNotSmi(r5, &slow_case);
 
-      __ cmp(r1, r0);
-      __ b(ne, &next_test);
+      __ cmp(r4, r3);
+      __ bne(&next_test);
       __ Drop(1);  // Switch value is no longer needed.
       __ b(clause->body_target());
       __ bind(&slow_case);
     }
 
     // Record position before stub call for type feedback.
     SetSourcePosition(clause->position());
     Handle<Code> ic =
         CodeFactory::CompareIC(isolate(), Token::EQ_STRICT).code();
     CallIC(ic, clause->CompareId());
     patch_site.EmitPatchInfo();
 
     Label skip;
     __ b(&skip);
     PrepareForBailout(clause, TOS_REG);
     __ LoadRoot(ip, Heap::kTrueValueRootIndex);
-    __ cmp(r0, ip);
-    __ b(ne, &next_test);
+    __ cmp(r3, ip);
+    __ bne(&next_test);
     __ Drop(1);
-    __ jmp(clause->body_target());
+    __ b(clause->body_target());
     __ bind(&skip);
 
-    __ cmp(r0, Operand::Zero());
-    __ b(ne, &next_test);
+    __ cmpi(r3, Operand::Zero());
+    __ bne(&next_test);
     __ Drop(1);  // Switch value is no longer needed.
     __ b(clause->body_target());
   }
 
   // Discard the test value and jump to the default if present, otherwise to
   // the end of the statement.
   __ bind(&next_test);
   __ Drop(1);  // Switch value is no longer needed.
   if (default_clause == NULL) {
     __ b(nested_statement.break_label());
@@ skipping 21 matching lines @@
   SetStatementPosition(stmt);
 
   Label loop, exit;
   ForIn loop_statement(this, stmt);
   increment_loop_depth();
 
   // Get the object to enumerate over. If the object is null or undefined, skip
   // over the loop.  See ECMA-262 version 5, section 12.6.4.
   VisitForAccumulatorValue(stmt->enumerable());
   __ LoadRoot(ip, Heap::kUndefinedValueRootIndex);
-  __ cmp(r0, ip);
-  __ b(eq, &exit);
-  Register null_value = r5;
+  __ cmp(r3, ip);
+  __ beq(&exit);
+  Register null_value = r7;
   __ LoadRoot(null_value, Heap::kNullValueRootIndex);
-  __ cmp(r0, null_value);
-  __ b(eq, &exit);
+  __ cmp(r3, null_value);
+  __ beq(&exit);
 
   PrepareForBailoutForId(stmt->PrepareId(), TOS_REG);
 
   // Convert the object to a JS object.
   Label convert, done_convert;
-  __ JumpIfSmi(r0, &convert);
-  __ CompareObjectType(r0, r1, r1, FIRST_SPEC_OBJECT_TYPE);
-  __ b(ge, &done_convert);
+  __ JumpIfSmi(r3, &convert);
+  __ CompareObjectType(r3, r4, r4, FIRST_SPEC_OBJECT_TYPE);
+  __ bge(&done_convert);
   __ bind(&convert);
-  __ push(r0);
+  __ push(r3);
   __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION);
   __ bind(&done_convert);
   PrepareForBailoutForId(stmt->ToObjectId(), TOS_REG);
-  __ push(r0);
+  __ push(r3);
 
   // Check for proxies.
   Label call_runtime;
   STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE);
-  __ CompareObjectType(r0, r1, r1, LAST_JS_PROXY_TYPE);
-  __ b(le, &call_runtime);
+  __ CompareObjectType(r3, r4, r4, LAST_JS_PROXY_TYPE);
+  __ ble(&call_runtime);
 
   // Check cache validity in generated code. This is a fast case for
   // the JSObject::IsSimpleEnum cache validity checks. If we cannot
   // guarantee cache validity, call the runtime system to check cache
   // validity or get the property names in a fixed array.
   __ CheckEnumCache(null_value, &call_runtime);
 
   // The enum cache is valid.  Load the map of the object being
   // iterated over and use the cache for the iteration.
   Label use_cache;
-  __ ldr(r0, FieldMemOperand(r0, HeapObject::kMapOffset));
+  __ LoadP(r3, FieldMemOperand(r3, HeapObject::kMapOffset));
   __ b(&use_cache);
 
   // Get the set of properties to enumerate.
   __ bind(&call_runtime);
-  __ push(r0);  // Duplicate the enumerable object on the stack.
+  __ push(r3);  // Duplicate the enumerable object on the stack.
   __ CallRuntime(Runtime::kGetPropertyNamesFast, 1);
   PrepareForBailoutForId(stmt->EnumId(), TOS_REG);
 
   // If we got a map from the runtime call, we can do a fast
   // modification check. Otherwise, we got a fixed array, and we have
   // to do a slow check.
   Label fixed_array;
-  __ ldr(r2, FieldMemOperand(r0, HeapObject::kMapOffset));
+  __ LoadP(r5, FieldMemOperand(r3, HeapObject::kMapOffset));
   __ LoadRoot(ip, Heap::kMetaMapRootIndex);
-  __ cmp(r2, ip);
-  __ b(ne, &fixed_array);
+  __ cmp(r5, ip);
+  __ bne(&fixed_array);
 
-  // We got a map in register r0. Get the enumeration cache from it.
+  // We got a map in register r3. Get the enumeration cache from it.
   Label no_descriptors;
   __ bind(&use_cache);
 
-  __ EnumLength(r1, r0);
-  __ cmp(r1, Operand(Smi::FromInt(0)));
-  __ b(eq, &no_descriptors);
+  __ EnumLength(r4, r3);
+  __ CmpSmiLiteral(r4, Smi::FromInt(0), r0);
+  __ beq(&no_descriptors);
 
-  __ LoadInstanceDescriptors(r0, r2);
-  __ ldr(r2, FieldMemOperand(r2, DescriptorArray::kEnumCacheOffset));
-  __ ldr(r2, FieldMemOperand(r2, DescriptorArray::kEnumCacheBridgeCacheOffset));
+  __ LoadInstanceDescriptors(r3, r5);
+  __ LoadP(r5, FieldMemOperand(r5, DescriptorArray::kEnumCacheOffset));
+  __ LoadP(r5,
+           FieldMemOperand(r5, DescriptorArray::kEnumCacheBridgeCacheOffset));
 
   // Set up the four remaining stack slots.
-  __ push(r0);  // Map.
-  __ mov(r0, Operand(Smi::FromInt(0)));
+  __ push(r3);  // Map.
+  __ LoadSmiLiteral(r3, Smi::FromInt(0));
   // Push enumeration cache, enumeration cache length (as smi) and zero.
-  __ Push(r2, r1, r0);
-  __ jmp(&loop);
+  __ Push(r5, r4, r3);
+  __ b(&loop);
 
   __ bind(&no_descriptors);
   __ Drop(1);
-  __ jmp(&exit);
+  __ b(&exit);
 
-  // We got a fixed array in register r0. Iterate through that.
+  // We got a fixed array in register r3. Iterate through that.
   Label non_proxy;
   __ bind(&fixed_array);
 
-  __ Move(r1, FeedbackVector());
-  __ mov(r2, Operand(TypeFeedbackVector::MegamorphicSentinel(isolate())));
+  __ Move(r4, FeedbackVector());
+  __ mov(r5, Operand(TypeFeedbackVector::MegamorphicSentinel(isolate())));
   int vector_index = FeedbackVector()->GetIndex(slot);
-  __ str(r2, FieldMemOperand(r1, FixedArray::OffsetOfElementAt(vector_index)));
+  __ StoreP(
+      r5, FieldMemOperand(r4, FixedArray::OffsetOfElementAt(vector_index)), r0);
 
-  __ mov(r1, Operand(Smi::FromInt(1)));  // Smi indicates slow check
-  __ ldr(r2, MemOperand(sp, 0 * kPointerSize));  // Get enumerated object
+  __ LoadSmiLiteral(r4, Smi::FromInt(1));          // Smi indicates slow check
+  __ LoadP(r5, MemOperand(sp, 0 * kPointerSize));  // Get enumerated object
   STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE);
-  __ CompareObjectType(r2, r3, r3, LAST_JS_PROXY_TYPE);
-  __ b(gt, &non_proxy);
-  __ mov(r1, Operand(Smi::FromInt(0)));  // Zero indicates proxy
+  __ CompareObjectType(r5, r6, r6, LAST_JS_PROXY_TYPE);
+  __ bgt(&non_proxy);
+  __ LoadSmiLiteral(r4, Smi::FromInt(0));  // Zero indicates proxy
   __ bind(&non_proxy);
-  __ Push(r1, r0);  // Smi and array
-  __ ldr(r1, FieldMemOperand(r0, FixedArray::kLengthOffset));
-  __ mov(r0, Operand(Smi::FromInt(0)));
-  __ Push(r1, r0);  // Fixed array length (as smi) and initial index.
+  __ Push(r4, r3);  // Smi and array
+  __ LoadP(r4, FieldMemOperand(r3, FixedArray::kLengthOffset));
+  __ LoadSmiLiteral(r3, Smi::FromInt(0));
+  __ Push(r4, r3);  // Fixed array length (as smi) and initial index.
 
   // Generate code for doing the condition check.
   PrepareForBailoutForId(stmt->BodyId(), NO_REGISTERS);
   __ bind(&loop);
-  // Load the current count to r0, load the length to r1.
-  __ Ldrd(r0, r1, MemOperand(sp, 0 * kPointerSize));
-  __ cmp(r0, r1);  // Compare to the array length.
-  __ b(hs, loop_statement.break_label());
+  // Load the current count to r3, load the length to r4.
+  __ LoadP(r3, MemOperand(sp, 0 * kPointerSize));
+  __ LoadP(r4, MemOperand(sp, 1 * kPointerSize));
+  __ cmpl(r3, r4);  // Compare to the array length.
+  __ bge(loop_statement.break_label());
 
-  // Get the current entry of the array into register r3.
-  __ ldr(r2, MemOperand(sp, 2 * kPointerSize));
-  __ add(r2, r2, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-  __ ldr(r3, MemOperand::PointerAddressFromSmiKey(r2, r0));
+  // Get the current entry of the array into register r6.
+  __ LoadP(r5, MemOperand(sp, 2 * kPointerSize));
+  __ addi(r5, r5, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
+  __ SmiToPtrArrayOffset(r6, r3);
+  __ LoadPX(r6, MemOperand(r6, r5));
 
   // Get the expected map from the stack or a smi in the
-  // permanent slow case into register r2.
-  __ ldr(r2, MemOperand(sp, 3 * kPointerSize));
+  // permanent slow case into register r5.
+  __ LoadP(r5, MemOperand(sp, 3 * kPointerSize));
 
   // Check if the expected map still matches that of the enumerable.
   // If not, we may have to filter the key.
   Label update_each;
-  __ ldr(r1, MemOperand(sp, 4 * kPointerSize));
-  __ ldr(r4, FieldMemOperand(r1, HeapObject::kMapOffset));
-  __ cmp(r4, Operand(r2));
-  __ b(eq, &update_each);
+  __ LoadP(r4, MemOperand(sp, 4 * kPointerSize));
+  __ LoadP(r7, FieldMemOperand(r4, HeapObject::kMapOffset));
+  __ cmp(r7, r5);
+  __ beq(&update_each);
 
   // For proxies, no filtering is done.
   // TODO(rossberg): What if only a prototype is a proxy? Not specified yet.
-  __ cmp(r2, Operand(Smi::FromInt(0)));
-  __ b(eq, &update_each);
+  __ CmpSmiLiteral(r5, Smi::FromInt(0), r0);
+  __ beq(&update_each);
 
   // Convert the entry to a string or (smi) 0 if it isn't a property
   // any more. If the property has been removed while iterating, we
   // just skip it.
-  __ push(r1);  // Enumerable.
-  __ push(r3);  // Current entry.
+  __ Push(r4, r6);  // Enumerable and current entry.
   __ InvokeBuiltin(Builtins::FILTER_KEY, CALL_FUNCTION);
-  __ mov(r3, Operand(r0), SetCC);
-  __ b(eq, loop_statement.continue_label());
+  __ mr(r6, r3);
+  __ cmpi(r6, Operand::Zero());
+  __ beq(loop_statement.continue_label());
 
   // Update the 'each' property or variable from the possibly filtered
-  // entry in register r3.
+  // entry in register r6.
   __ bind(&update_each);
-  __ mov(result_register(), r3);
+  __ mr(result_register(), r6);
   // Perform the assignment as if via '='.
-  { EffectContext context(this);
+  {
+    EffectContext context(this);
     EmitAssignment(stmt->each());
   }
 
   // Generate code for the body of the loop.
   Visit(stmt->body());
 
   // Generate code for the going to the next element by incrementing
   // the index (smi) stored on top of the stack.
   __ bind(loop_statement.continue_label());
-  __ pop(r0);
-  __ add(r0, r0, Operand(Smi::FromInt(1)));
-  __ push(r0);
+  __ pop(r3);
+  __ AddSmiLiteral(r3, r3, Smi::FromInt(1), r0);
+  __ push(r3);
 
   EmitBackEdgeBookkeeping(stmt, &loop);
   __ b(&loop);
 
   // Remove the pointers stored on the stack.
   __ bind(loop_statement.break_label());
   __ Drop(5);
 
   // Exit and decrement the loop depth.
   PrepareForBailoutForId(stmt->ExitId(), NO_REGISTERS);
@@ skipping 13 matching lines @@
   VisitForEffect(stmt->assign_iterator());
 
   // Loop entry.
   __ bind(loop_statement.continue_label());
 
   // result = iterator.next()
   VisitForEffect(stmt->next_result());
 
   // if (result.done) break;
   Label result_not_done;
-  VisitForControl(stmt->result_done(),
-                  loop_statement.break_label(),
-                  &result_not_done,
-                  &result_not_done);
+  VisitForControl(stmt->result_done(), loop_statement.break_label(),
+                  &result_not_done, &result_not_done);
   __ bind(&result_not_done);
 
   // each = result.value
   VisitForEffect(stmt->assign_each());
 
   // Generate code for the body of the loop.
   Visit(stmt->body());
 
   // Check stack before looping.
   PrepareForBailoutForId(stmt->BackEdgeId(), NO_REGISTERS);
   EmitBackEdgeBookkeeping(stmt, loop_statement.continue_label());
-  __ jmp(loop_statement.continue_label());
+  __ b(loop_statement.continue_label());
 
   // Exit and decrement the loop depth.
   PrepareForBailoutForId(stmt->ExitId(), NO_REGISTERS);
   __ bind(loop_statement.break_label());
   decrement_loop_depth();
 }
 
 
 void FullCodeGenerator::EmitNewClosure(Handle<SharedFunctionInfo> info,
                                        bool pretenure) {
   // Use the fast case closure allocation code that allocates in new
   // space for nested functions that don't need literals cloning. If
   // we're running with the --always-opt or the --prepare-always-opt
   // flag, we need to use the runtime function so that the new function
   // we are creating here gets a chance to have its code optimized and
   // doesn't just get a copy of the existing unoptimized code.
-  if (!FLAG_always_opt &&
-      !FLAG_prepare_always_opt &&
-      !pretenure &&
-      scope()->is_function_scope() &&
-      info->num_literals() == 0) {
+  if (!FLAG_always_opt && !FLAG_prepare_always_opt && !pretenure &&
+      scope()->is_function_scope() && info->num_literals() == 0) {
     FastNewClosureStub stub(isolate(), info->strict_mode(), info->kind());
-    __ mov(r2, Operand(info));
+    __ mov(r5, Operand(info));
     __ CallStub(&stub);
   } else {
-    __ mov(r0, Operand(info));
-    __ LoadRoot(r1, pretenure ? Heap::kTrueValueRootIndex
-                              : Heap::kFalseValueRootIndex);
-    __ Push(cp, r0, r1);
+    __ mov(r3, Operand(info));
+    __ LoadRoot(
+        r4, pretenure ? Heap::kTrueValueRootIndex : Heap::kFalseValueRootIndex);
+    __ Push(cp, r3, r4);
     __ CallRuntime(Runtime::kNewClosure, 3);
   }
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::VisitVariableProxy(VariableProxy* expr) {
   Comment cmnt(masm_, "[ VariableProxy");
   EmitVariableLoad(expr);
 }
 
 
 void FullCodeGenerator::EmitLoadHomeObject(SuperReference* expr) {
   Comment cnmt(masm_, "[ SuperReference ");
 
-  __ ldr(LoadDescriptor::ReceiverRegister(),
-         MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
+  __ LoadP(LoadDescriptor::ReceiverRegister(),
+           MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
 
   Handle<Symbol> home_object_symbol(isolate()->heap()->home_object_symbol());
   __ Move(LoadDescriptor::NameRegister(), home_object_symbol);
 
   if (FLAG_vector_ics) {
     __ mov(VectorLoadICDescriptor::SlotRegister(),
            Operand(SmiFromSlot(expr->HomeObjectFeedbackSlot())));
     CallLoadIC(NOT_CONTEXTUAL);
   } else {
     CallLoadIC(NOT_CONTEXTUAL, expr->HomeObjectFeedbackId());
   }
 
-  __ cmp(r0, Operand(isolate()->factory()->undefined_value()));
+  __ Cmpi(r3, Operand(isolate()->factory()->undefined_value()), r0);
   Label done;
-  __ b(ne, &done);
+  __ bne(&done);
   __ CallRuntime(Runtime::kThrowNonMethodError, 0);
   __ bind(&done);
 }
 
 
 void FullCodeGenerator::EmitLoadGlobalCheckExtensions(VariableProxy* proxy,
                                                       TypeofState typeof_state,
                                                       Label* slow) {
   Register current = cp;
-  Register next = r1;
-  Register temp = r2;
+  Register next = r4;
+  Register temp = r5;
 
   Scope* s = scope();
   while (s != NULL) {
     if (s->num_heap_slots() > 0) {
       if (s->calls_sloppy_eval()) {
         // Check that extension is NULL.
-        __ ldr(temp, ContextOperand(current, Context::EXTENSION_INDEX));
-        __ tst(temp, temp);
-        __ b(ne, slow);
+        __ LoadP(temp, ContextOperand(current, Context::EXTENSION_INDEX));
+        __ cmpi(temp, Operand::Zero());
+        __ bne(slow);
       }
       // Load next context in chain.
-      __ ldr(next, ContextOperand(current, Context::PREVIOUS_INDEX));
+      __ LoadP(next, ContextOperand(current, Context::PREVIOUS_INDEX));
       // Walk the rest of the chain without clobbering cp.
       current = next;
     }
     // If no outer scope calls eval, we do not need to check more
     // context extensions.
     if (!s->outer_scope_calls_sloppy_eval() || s->is_eval_scope()) break;
     s = s->outer_scope();
   }
 
   if (s->is_eval_scope()) {
     Label loop, fast;
     if (!current.is(next)) {
       __ Move(next, current);
     }
     __ bind(&loop);
     // Terminate at native context.
-    __ ldr(temp, FieldMemOperand(next, HeapObject::kMapOffset));
+    __ LoadP(temp, FieldMemOperand(next, HeapObject::kMapOffset));
     __ LoadRoot(ip, Heap::kNativeContextMapRootIndex);
     __ cmp(temp, ip);
-    __ b(eq, &fast);
+    __ beq(&fast);
     // Check that extension is NULL.
-    __ ldr(temp, ContextOperand(next, Context::EXTENSION_INDEX));
-    __ tst(temp, temp);
-    __ b(ne, slow);
+    __ LoadP(temp, ContextOperand(next, Context::EXTENSION_INDEX));
+    __ cmpi(temp, Operand::Zero());
+    __ bne(slow);
     // Load next context in chain.
-    __ ldr(next, ContextOperand(next, Context::PREVIOUS_INDEX));
+    __ LoadP(next, ContextOperand(next, Context::PREVIOUS_INDEX));
     __ b(&loop);
     __ bind(&fast);
   }
 
-  __ ldr(LoadDescriptor::ReceiverRegister(), GlobalObjectOperand());
+  __ LoadP(LoadDescriptor::ReceiverRegister(), GlobalObjectOperand());
   __ mov(LoadDescriptor::NameRegister(), Operand(proxy->var()->name()));
   if (FLAG_vector_ics) {
     __ mov(VectorLoadICDescriptor::SlotRegister(),
            Operand(SmiFromSlot(proxy->VariableFeedbackSlot())));
   }
 
-  ContextualMode mode = (typeof_state == INSIDE_TYPEOF)
-      ? NOT_CONTEXTUAL
-      : CONTEXTUAL;
+  ContextualMode mode =
+      (typeof_state == INSIDE_TYPEOF) ? NOT_CONTEXTUAL : CONTEXTUAL;
   CallLoadIC(mode);
 }
 
 
 MemOperand FullCodeGenerator::ContextSlotOperandCheckExtensions(Variable* var,
                                                                 Label* slow) {
   DCHECK(var->IsContextSlot());
   Register context = cp;
-  Register next = r3;
-  Register temp = r4;
+  Register next = r6;
+  Register temp = r7;
 
   for (Scope* s = scope(); s != var->scope(); s = s->outer_scope()) {
     if (s->num_heap_slots() > 0) {
       if (s->calls_sloppy_eval()) {
         // Check that extension is NULL.
-        __ ldr(temp, ContextOperand(context, Context::EXTENSION_INDEX));
-        __ tst(temp, temp);
-        __ b(ne, slow);
+        __ LoadP(temp, ContextOperand(context, Context::EXTENSION_INDEX));
+        __ cmpi(temp, Operand::Zero());
+        __ bne(slow);
       }
-      __ ldr(next, ContextOperand(context, Context::PREVIOUS_INDEX));
+      __ LoadP(next, ContextOperand(context, Context::PREVIOUS_INDEX));
       // Walk the rest of the chain without clobbering cp.
       context = next;
     }
   }
   // Check that last extension is NULL.
-  __ ldr(temp, ContextOperand(context, Context::EXTENSION_INDEX));
-  __ tst(temp, temp);
-  __ b(ne, slow);
+  __ LoadP(temp, ContextOperand(context, Context::EXTENSION_INDEX));
+  __ cmpi(temp, Operand::Zero());
+  __ bne(slow);
 
   // This function is used only for loads, not stores, so it's safe to
   // return an cp-based operand (the write barrier cannot be allowed to
   // destroy the cp register).
   return ContextOperand(context, var->index());
 }
 
 
 void FullCodeGenerator::EmitDynamicLookupFastCase(VariableProxy* proxy,
                                                   TypeofState typeof_state,
-                                                  Label* slow,
-                                                  Label* done) {
+                                                  Label* slow, Label* done) {
   // Generate fast-case code for variables that might be shadowed by
   // eval-introduced variables.  Eval is used a lot without
   // introducing variables.  In those cases, we do not want to
   // perform a runtime call for all variables in the scope
   // containing the eval.
   Variable* var = proxy->var();
   if (var->mode() == DYNAMIC_GLOBAL) {
     EmitLoadGlobalCheckExtensions(proxy, typeof_state, slow);
-    __ jmp(done);
+    __ b(done);
   } else if (var->mode() == DYNAMIC_LOCAL) {
     Variable* local = var->local_if_not_shadowed();
-    __ ldr(r0, ContextSlotOperandCheckExtensions(local, slow));
+    __ LoadP(r3, ContextSlotOperandCheckExtensions(local, slow));
     if (local->mode() == LET || local->mode() == CONST ||
         local->mode() == CONST_LEGACY) {
-      __ CompareRoot(r0, Heap::kTheHoleValueRootIndex);
+      __ CompareRoot(r3, Heap::kTheHoleValueRootIndex);
+      __ bne(done);
       if (local->mode() == CONST_LEGACY) {
-        __ LoadRoot(r0, Heap::kUndefinedValueRootIndex, eq);
+        __ LoadRoot(r3, Heap::kUndefinedValueRootIndex);
       } else {  // LET || CONST
-        __ b(ne, done);
-        __ mov(r0, Operand(var->name()));
-        __ push(r0);
+        __ mov(r3, Operand(var->name()));
+        __ push(r3);
         __ CallRuntime(Runtime::kThrowReferenceError, 1);
       }
     }
-    __ jmp(done);
+    __ b(done);
   }
 }
 
 
 void FullCodeGenerator::EmitVariableLoad(VariableProxy* proxy) {
   // Record position before possible IC call.
   SetSourcePosition(proxy->position());
   Variable* var = proxy->var();
 
   // Three cases: global variables, lookup variables, and all other types of
   // variables.
   switch (var->location()) {
     case Variable::UNALLOCATED: {
       Comment cmnt(masm_, "[ Global variable");
-      __ ldr(LoadDescriptor::ReceiverRegister(), GlobalObjectOperand());
+      __ LoadP(LoadDescriptor::ReceiverRegister(), GlobalObjectOperand());
       __ mov(LoadDescriptor::NameRegister(), Operand(var->name()));
       if (FLAG_vector_ics) {
         __ mov(VectorLoadICDescriptor::SlotRegister(),
                Operand(SmiFromSlot(proxy->VariableFeedbackSlot())));
       }
       CallLoadIC(CONTEXTUAL);
-      context()->Plug(r0);
+      context()->Plug(r3);
       break;
     }
 
     case Variable::PARAMETER:
     case Variable::LOCAL:
     case Variable::CONTEXT: {
       Comment cmnt(masm_, var->IsContextSlot() ? "[ Context variable"
                                                : "[ Stack variable");
       if (var->binding_needs_init()) {
         // var->scope() may be NULL when the proxy is located in eval code and
@@ skipping 20 matching lines @@
         //   function() { f(); let x = 1; function f() { x = 2; } }
         //
         bool skip_init_check;
         if (var->scope()->DeclarationScope() != scope()->DeclarationScope()) {
           skip_init_check = false;
         } else {
           // Check that we always have valid source position.
           DCHECK(var->initializer_position() != RelocInfo::kNoPosition);
           DCHECK(proxy->position() != RelocInfo::kNoPosition);
           skip_init_check = var->mode() != CONST_LEGACY &&
-              var->initializer_position() < proxy->position();
+                            var->initializer_position() < proxy->position();
         }
 
         if (!skip_init_check) {
+          Label done;
           // Let and const need a read barrier.
-          GetVar(r0, var);
-          __ CompareRoot(r0, Heap::kTheHoleValueRootIndex);
+          GetVar(r3, var);
+          __ CompareRoot(r3, Heap::kTheHoleValueRootIndex);
+          __ bne(&done);
           if (var->mode() == LET || var->mode() == CONST) {
             // Throw a reference error when using an uninitialized let/const
             // binding in harmony mode.
-            Label done;
-            __ b(ne, &done);
-            __ mov(r0, Operand(var->name()));
-            __ push(r0);
+            __ mov(r3, Operand(var->name()));
+            __ push(r3);
             __ CallRuntime(Runtime::kThrowReferenceError, 1);
-            __ bind(&done);
           } else {
             // Uninitalized const bindings outside of harmony mode are unholed.
             DCHECK(var->mode() == CONST_LEGACY);
-            __ LoadRoot(r0, Heap::kUndefinedValueRootIndex, eq);
+            __ LoadRoot(r3, Heap::kUndefinedValueRootIndex);
           }
-          context()->Plug(r0);
+          __ bind(&done);
+          context()->Plug(r3);
           break;
         }
       }
       context()->Plug(var);
       break;
     }
 
     case Variable::LOOKUP: {
       Comment cmnt(masm_, "[ Lookup variable");
       Label done, slow;
       // Generate code for loading from variables potentially shadowed
       // by eval-introduced variables.
       EmitDynamicLookupFastCase(proxy, NOT_INSIDE_TYPEOF, &slow, &done);
       __ bind(&slow);
-      __ mov(r1, Operand(var->name()));
-      __ Push(cp, r1);  // Context and name.
+      __ mov(r4, Operand(var->name()));
+      __ Push(cp, r4);  // Context and name.
       __ CallRuntime(Runtime::kLoadLookupSlot, 2);
       __ bind(&done);
-      context()->Plug(r0);
+      context()->Plug(r3);
     }
   }
 }
 
 
 void FullCodeGenerator::VisitRegExpLiteral(RegExpLiteral* expr) {
   Comment cmnt(masm_, "[ RegExpLiteral");
   Label materialized;
   // Registers will be used as follows:
-  // r5 = materialized value (RegExp literal)
-  // r4 = JS function, literals array
-  // r3 = literal index
-  // r2 = RegExp pattern
-  // r1 = RegExp flags
-  // r0 = RegExp literal clone
-  __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
-  __ ldr(r4, FieldMemOperand(r0, JSFunction::kLiteralsOffset));
+  // r8 = materialized value (RegExp literal)
+  // r7 = JS function, literals array
+  // r6 = literal index
+  // r5 = RegExp pattern
+  // r4 = RegExp flags
+  // r3 = RegExp literal clone
+  __ LoadP(r3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
+  __ LoadP(r7, FieldMemOperand(r3, JSFunction::kLiteralsOffset));
   int literal_offset =
       FixedArray::kHeaderSize + expr->literal_index() * kPointerSize;
-  __ ldr(r5, FieldMemOperand(r4, literal_offset));
+  __ LoadP(r8, FieldMemOperand(r7, literal_offset), r0);
   __ LoadRoot(ip, Heap::kUndefinedValueRootIndex);
-  __ cmp(r5, ip);
-  __ b(ne, &materialized);
+  __ cmp(r8, ip);
+  __ bne(&materialized);
 
   // Create regexp literal using runtime function.
-  // Result will be in r0.
-  __ mov(r3, Operand(Smi::FromInt(expr->literal_index())));
-  __ mov(r2, Operand(expr->pattern()));
-  __ mov(r1, Operand(expr->flags()));
-  __ Push(r4, r3, r2, r1);
+  // Result will be in r3.
+  __ LoadSmiLiteral(r6, Smi::FromInt(expr->literal_index()));
+  __ mov(r5, Operand(expr->pattern()));
+  __ mov(r4, Operand(expr->flags()));
+  __ Push(r7, r6, r5, r4);
   __ CallRuntime(Runtime::kMaterializeRegExpLiteral, 4);
-  __ mov(r5, r0);
+  __ mr(r8, r3);
 
   __ bind(&materialized);
   int size = JSRegExp::kSize + JSRegExp::kInObjectFieldCount * kPointerSize;
   Label allocated, runtime_allocate;
-  __ Allocate(size, r0, r2, r3, &runtime_allocate, TAG_OBJECT);
-  __ jmp(&allocated);
+  __ Allocate(size, r3, r5, r6, &runtime_allocate, TAG_OBJECT);
+  __ b(&allocated);
 
   __ bind(&runtime_allocate);
-  __ mov(r0, Operand(Smi::FromInt(size)));
-  __ Push(r5, r0);
+  __ LoadSmiLiteral(r3, Smi::FromInt(size));
+  __ Push(r8, r3);
   __ CallRuntime(Runtime::kAllocateInNewSpace, 1);
-  __ pop(r5);
+  __ pop(r8);
 
   __ bind(&allocated);
   // After this, registers are used as follows:
-  // r0: Newly allocated regexp.
-  // r5: Materialized regexp.
-  // r2: temp.
-  __ CopyFields(r0, r5, d0, size / kPointerSize);
-  context()->Plug(r0);
+  // r3: Newly allocated regexp.
+  // r8: Materialized regexp.
+  // r5: temp.
+  __ CopyFields(r3, r8, r5.bit(), size / kPointerSize);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitAccessor(Expression* expression) {
   if (expression == NULL) {
-    __ LoadRoot(r1, Heap::kNullValueRootIndex);
-    __ push(r1);
+    __ LoadRoot(r4, Heap::kNullValueRootIndex);
+    __ push(r4);
   } else {
     VisitForStackValue(expression);
   }
 }
 
 
 void FullCodeGenerator::VisitObjectLiteral(ObjectLiteral* expr) {
   Comment cmnt(masm_, "[ ObjectLiteral");
 
   expr->BuildConstantProperties(isolate());
   Handle<FixedArray> constant_properties = expr->constant_properties();
-  __ ldr(r3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
-  __ ldr(r3, FieldMemOperand(r3, JSFunction::kLiteralsOffset));
-  __ mov(r2, Operand(Smi::FromInt(expr->literal_index())));
-  __ mov(r1, Operand(constant_properties));
-  int flags = expr->fast_elements()
-      ? ObjectLiteral::kFastElements
-      : ObjectLiteral::kNoFlags;
-  flags |= expr->has_function()
-      ? ObjectLiteral::kHasFunction
-      : ObjectLiteral::kNoFlags;
-  __ mov(r0, Operand(Smi::FromInt(flags)));
+  __ LoadP(r6, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
+  __ LoadP(r6, FieldMemOperand(r6, JSFunction::kLiteralsOffset));
+  __ LoadSmiLiteral(r5, Smi::FromInt(expr->literal_index()));
+  __ mov(r4, Operand(constant_properties));
+  int flags = expr->fast_elements() ? ObjectLiteral::kFastElements
+                                    : ObjectLiteral::kNoFlags;
+  flags |= expr->has_function() ? ObjectLiteral::kHasFunction
+                                : ObjectLiteral::kNoFlags;
+  __ LoadSmiLiteral(r3, Smi::FromInt(flags));
   int properties_count = constant_properties->length() / 2;
   if (expr->may_store_doubles() || expr->depth() > 1 ||
       masm()->serializer_enabled() || flags != ObjectLiteral::kFastElements ||
       properties_count > FastCloneShallowObjectStub::kMaximumClonedProperties) {
-    __ Push(r3, r2, r1, r0);
+    __ Push(r6, r5, r4, r3);
     __ CallRuntime(Runtime::kCreateObjectLiteral, 4);
   } else {
     FastCloneShallowObjectStub stub(isolate(), properties_count);
     __ CallStub(&stub);
   }
   PrepareForBailoutForId(expr->CreateLiteralId(), TOS_REG);
 
   // If result_saved is true the result is on top of the stack.  If
-  // result_saved is false the result is in r0.
+  // result_saved is false the result is in r3.
   bool result_saved = false;
 
   // Mark all computed expressions that are bound to a key that
   // is shadowed by a later occurrence of the same key. For the
   // marked expressions, no store code is emitted.
   expr->CalculateEmitStore(zone());
 
   AccessorTable accessor_table(zone());
   for (int i = 0; i < expr->properties()->length(); i++) {
     ObjectLiteral::Property* property = expr->properties()->at(i);
     if (property->IsCompileTimeValue()) continue;
 
     Literal* key = property->key();
     Expression* value = property->value();
     if (!result_saved) {
-      __ push(r0);  // Save result on stack
+      __ push(r3);  // Save result on stack
       result_saved = true;
     }
     switch (property->kind()) {
       case ObjectLiteral::Property::CONSTANT:
         UNREACHABLE();
       case ObjectLiteral::Property::MATERIALIZED_LITERAL:
         DCHECK(!CompileTimeValue::IsCompileTimeValue(property->value()));
-        // Fall through.
+      // Fall through.
       case ObjectLiteral::Property::COMPUTED:
         // It is safe to use [[Put]] here because the boilerplate already
         // contains computed properties with an uninitialized value.
         if (key->value()->IsInternalizedString()) {
           if (property->emit_store()) {
             VisitForAccumulatorValue(value);
-            DCHECK(StoreDescriptor::ValueRegister().is(r0));
+            DCHECK(StoreDescriptor::ValueRegister().is(r3));
             __ mov(StoreDescriptor::NameRegister(), Operand(key->value()));
-            __ ldr(StoreDescriptor::ReceiverRegister(), MemOperand(sp));
+            __ LoadP(StoreDescriptor::ReceiverRegister(), MemOperand(sp));
             CallStoreIC(key->LiteralFeedbackId());
             PrepareForBailoutForId(key->id(), NO_REGISTERS);
           } else {
             VisitForEffect(value);
           }
           break;
         }
         // Duplicate receiver on stack.
-        __ ldr(r0, MemOperand(sp));
-        __ push(r0);
+        __ LoadP(r3, MemOperand(sp));
+        __ push(r3);
         VisitForStackValue(key);
         VisitForStackValue(value);
         if (property->emit_store()) {
-          __ mov(r0, Operand(Smi::FromInt(SLOPPY)));  // PropertyAttributes
-          __ push(r0);
+          __ LoadSmiLiteral(r3, Smi::FromInt(SLOPPY));  // PropertyAttributes
+          __ push(r3);
           __ CallRuntime(Runtime::kSetProperty, 4);
         } else {
           __ Drop(3);
         }
         break;
       case ObjectLiteral::Property::PROTOTYPE:
         // Duplicate receiver on stack.
-        __ ldr(r0, MemOperand(sp));
-        __ push(r0);
+        __ LoadP(r3, MemOperand(sp));
+        __ push(r3);
         VisitForStackValue(value);
         if (property->emit_store()) {
           __ CallRuntime(Runtime::kInternalSetPrototype, 2);
         } else {
           __ Drop(2);
         }
         break;
-
       case ObjectLiteral::Property::GETTER:
         accessor_table.lookup(key)->second->getter = value;
         break;
       case ObjectLiteral::Property::SETTER:
         accessor_table.lookup(key)->second->setter = value;
         break;
     }
   }
 
   // Emit code to define accessors, using only a single call to the runtime for
   // each pair of corresponding getters and setters.
   for (AccessorTable::Iterator it = accessor_table.begin();
-       it != accessor_table.end();
-       ++it) {
-    __ ldr(r0, MemOperand(sp));  // Duplicate receiver.
-    __ push(r0);
+       it != accessor_table.end(); ++it) {
+    __ LoadP(r3, MemOperand(sp));  // Duplicate receiver.
+    __ push(r3);
     VisitForStackValue(it->first);
     EmitAccessor(it->second->getter);
     EmitAccessor(it->second->setter);
-    __ mov(r0, Operand(Smi::FromInt(NONE)));
-    __ push(r0);
+    __ LoadSmiLiteral(r3, Smi::FromInt(NONE));
+    __ push(r3);
     __ CallRuntime(Runtime::kDefineAccessorPropertyUnchecked, 5);
   }
 
   if (expr->has_function()) {
     DCHECK(result_saved);
-    __ ldr(r0, MemOperand(sp));
-    __ push(r0);
+    __ LoadP(r3, MemOperand(sp));
+    __ push(r3);
     __ CallRuntime(Runtime::kToFastProperties, 1);
   }
 
   if (result_saved) {
     context()->PlugTOS();
   } else {
-    context()->Plug(r0);
+    context()->Plug(r3);
   }
 }
 
 
 void FullCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) {
   Comment cmnt(masm_, "[ ArrayLiteral");
 
   expr->BuildConstantElements(isolate());
-  int flags = expr->depth() == 1
-      ? ArrayLiteral::kShallowElements
-      : ArrayLiteral::kNoFlags;
+  int flags = expr->depth() == 1 ? ArrayLiteral::kShallowElements
+                                 : ArrayLiteral::kNoFlags;
 
   ZoneList<Expression*>* subexprs = expr->values();
   int length = subexprs->length();
   Handle<FixedArray> constant_elements = expr->constant_elements();
   DCHECK_EQ(2, constant_elements->length());
   ElementsKind constant_elements_kind =
       static_cast<ElementsKind>(Smi::cast(constant_elements->get(0))->value());
   bool has_fast_elements = IsFastObjectElementsKind(constant_elements_kind);
   Handle<FixedArrayBase> constant_elements_values(
       FixedArrayBase::cast(constant_elements->get(1)));
 
   AllocationSiteMode allocation_site_mode = TRACK_ALLOCATION_SITE;
   if (has_fast_elements && !FLAG_allocation_site_pretenuring) {
     // If the only customer of allocation sites is transitioning, then
     // we can turn it off if we don't have anywhere else to transition to.
     allocation_site_mode = DONT_TRACK_ALLOCATION_SITE;
   }
 
-  __ ldr(r3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
-  __ ldr(r3, FieldMemOperand(r3, JSFunction::kLiteralsOffset));
-  __ mov(r2, Operand(Smi::FromInt(expr->literal_index())));
-  __ mov(r1, Operand(constant_elements));
+  __ LoadP(r6, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
+  __ LoadP(r6, FieldMemOperand(r6, JSFunction::kLiteralsOffset));
+  __ LoadSmiLiteral(r5, Smi::FromInt(expr->literal_index()));
+  __ mov(r4, Operand(constant_elements));
   if (expr->depth() > 1 || length > JSObject::kInitialMaxFastElementArray) {
-    __ mov(r0, Operand(Smi::FromInt(flags)));
-    __ Push(r3, r2, r1, r0);
+    __ LoadSmiLiteral(r3, Smi::FromInt(flags));
+    __ Push(r6, r5, r4, r3);
     __ CallRuntime(Runtime::kCreateArrayLiteral, 4);
   } else {
     FastCloneShallowArrayStub stub(isolate(), allocation_site_mode);
     __ CallStub(&stub);
   }
 
   bool result_saved = false;  // Is the result saved to the stack?
 
   // Emit code to evaluate all the non-constant subexpressions and to store
   // them into the newly cloned array.
   for (int i = 0; i < length; i++) {
     Expression* subexpr = subexprs->at(i);
     // If the subexpression is a literal or a simple materialized literal it
     // is already set in the cloned array.
     if (CompileTimeValue::IsCompileTimeValue(subexpr)) continue;
 
     if (!result_saved) {
-      __ push(r0);
+      __ push(r3);
       __ Push(Smi::FromInt(expr->literal_index()));
       result_saved = true;
     }
     VisitForAccumulatorValue(subexpr);
 
     if (IsFastObjectElementsKind(constant_elements_kind)) {
       int offset = FixedArray::kHeaderSize + (i * kPointerSize);
-      __ ldr(r6, MemOperand(sp, kPointerSize));  // Copy of array literal.
-      __ ldr(r1, FieldMemOperand(r6, JSObject::kElementsOffset));
-      __ str(result_register(), FieldMemOperand(r1, offset));
+      __ LoadP(r8, MemOperand(sp, kPointerSize));  // Copy of array literal.
+      __ LoadP(r4, FieldMemOperand(r8, JSObject::kElementsOffset));
+      __ StoreP(result_register(), FieldMemOperand(r4, offset), r0);
       // Update the write barrier for the array store.
-      __ RecordWriteField(r1, offset, result_register(), r2,
-                          kLRHasBeenSaved, kDontSaveFPRegs,
-                          EMIT_REMEMBERED_SET, INLINE_SMI_CHECK);
+      __ RecordWriteField(r4, offset, result_register(), r5, kLRHasBeenSaved,
+                          kDontSaveFPRegs, EMIT_REMEMBERED_SET,
+                          INLINE_SMI_CHECK);
     } else {
-      __ mov(r3, Operand(Smi::FromInt(i)));
+      __ LoadSmiLiteral(r6, Smi::FromInt(i));
       StoreArrayLiteralElementStub stub(isolate());
       __ CallStub(&stub);
     }
 
     PrepareForBailoutForId(expr->GetIdForElement(i), NO_REGISTERS);
   }
 
   if (result_saved) {
     __ pop();  // literal index
     context()->PlugTOS();
   } else {
-    context()->Plug(r0);
+    context()->Plug(r3);
   }
 }
 
 
 void FullCodeGenerator::VisitAssignment(Assignment* expr) {
   DCHECK(expr->target()->IsValidReferenceExpression());
 
   Comment cmnt(masm_, "[ Assignment");
 
   Property* property = expr->target()->AsProperty();
   LhsKind assign_type = GetAssignType(property);
 
   // Evaluate LHS expression.
   switch (assign_type) {
     case VARIABLE:
       // Nothing to do here.
       break;
     case NAMED_PROPERTY:
       if (expr->is_compound()) {
         // We need the receiver both on the stack and in the register.
         VisitForStackValue(property->obj());
-        __ ldr(LoadDescriptor::ReceiverRegister(), MemOperand(sp, 0));
+        __ LoadP(LoadDescriptor::ReceiverRegister(), MemOperand(sp, 0));
       } else {
         VisitForStackValue(property->obj());
       }
       break;
     case NAMED_SUPER_PROPERTY:
       VisitForStackValue(property->obj()->AsSuperReference()->this_var());
       EmitLoadHomeObject(property->obj()->AsSuperReference());
       __ Push(result_register());
       if (expr->is_compound()) {
-        const Register scratch = r1;
-        __ ldr(scratch, MemOperand(sp, kPointerSize));
-        __ Push(scratch);
-        __ Push(result_register());
+        const Register scratch = r4;
+        __ LoadP(scratch, MemOperand(sp, kPointerSize));
+        __ Push(scratch, result_register());
       }
       break;
-    case KEYED_SUPER_PROPERTY:
+    case KEYED_SUPER_PROPERTY: {
+      const Register scratch = r4;
       VisitForStackValue(property->obj()->AsSuperReference()->this_var());
       EmitLoadHomeObject(property->obj()->AsSuperReference());
-      __ Push(result_register());
+      __ Move(scratch, result_register());
       VisitForAccumulatorValue(property->key());
-      __ Push(result_register());
+      __ Push(scratch, result_register());
       if (expr->is_compound()) {
-        const Register scratch = r1;
-        __ ldr(scratch, MemOperand(sp, 2 * kPointerSize));
-        __ Push(scratch);
-        __ ldr(scratch, MemOperand(sp, 2 * kPointerSize));
-        __ Push(scratch);
-        __ Push(result_register());
+        const Register scratch1 = r5;
+        __ LoadP(scratch1, MemOperand(sp, 2 * kPointerSize));
+        __ Push(scratch1, scratch, result_register());
       }
       break;
+    }
     case KEYED_PROPERTY:
       if (expr->is_compound()) {
         VisitForStackValue(property->obj());
         VisitForStackValue(property->key());
-        __ ldr(LoadDescriptor::ReceiverRegister(),
-               MemOperand(sp, 1 * kPointerSize));
-        __ ldr(LoadDescriptor::NameRegister(), MemOperand(sp, 0));
+        __ LoadP(LoadDescriptor::ReceiverRegister(),
+                 MemOperand(sp, 1 * kPointerSize));
+        __ LoadP(LoadDescriptor::NameRegister(), MemOperand(sp, 0));
       } else {
         VisitForStackValue(property->obj());
         VisitForStackValue(property->key());
       }
       break;
   }
 
   // For compound assignments we need another deoptimization point after the
   // variable/property load.
   if (expr->is_compound()) {
-    { AccumulatorValueContext context(this);
+    {
+      AccumulatorValueContext context(this);
       switch (assign_type) {
         case VARIABLE:
           EmitVariableLoad(expr->target()->AsVariableProxy());
           PrepareForBailout(expr->target(), TOS_REG);
           break;
         case NAMED_PROPERTY:
           EmitNamedPropertyLoad(property);
           PrepareForBailoutForId(property->LoadId(), TOS_REG);
           break;
         case NAMED_SUPER_PROPERTY:
           EmitNamedSuperPropertyLoad(property);
           PrepareForBailoutForId(property->LoadId(), TOS_REG);
           break;
         case KEYED_SUPER_PROPERTY:
           EmitKeyedSuperPropertyLoad(property);
           PrepareForBailoutForId(property->LoadId(), TOS_REG);
           break;
         case KEYED_PROPERTY:
           EmitKeyedPropertyLoad(property);
           PrepareForBailoutForId(property->LoadId(), TOS_REG);
           break;
       }
     }
 
     Token::Value op = expr->binary_op();
-    __ push(r0);  // Left operand goes on the stack.
+    __ push(r3);  // Left operand goes on the stack.
     VisitForAccumulatorValue(expr->value());
 
     OverwriteMode mode = expr->value()->ResultOverwriteAllowed()
-        ? OVERWRITE_RIGHT
-        : NO_OVERWRITE;
+                             ? OVERWRITE_RIGHT
+                             : NO_OVERWRITE;
     SetSourcePosition(expr->position() + 1);
     AccumulatorValueContext context(this);
     if (ShouldInlineSmiCase(op)) {
-      EmitInlineSmiBinaryOp(expr->binary_operation(),
-                            op,
-                            mode,
-                            expr->target(),
+      EmitInlineSmiBinaryOp(expr->binary_operation(), op, mode, expr->target(),
                             expr->value());
     } else {
       EmitBinaryOp(expr->binary_operation(), op, mode);
     }
 
     // Deoptimization point in case the binary operation may have side effects.
     PrepareForBailout(expr->binary_operation(), TOS_REG);
   } else {
     VisitForAccumulatorValue(expr->value());
   }
 
   // Record source position before possible IC call.
   SetSourcePosition(expr->position());
 
   // Store the value.
   switch (assign_type) {
     case VARIABLE:
       EmitVariableAssignment(expr->target()->AsVariableProxy()->var(),
                              expr->op());
       PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
-      context()->Plug(r0);
+      context()->Plug(r3);
       break;
     case NAMED_PROPERTY:
       EmitNamedPropertyAssignment(expr);
       break;
     case NAMED_SUPER_PROPERTY:
       EmitNamedSuperPropertyStore(property);
-      context()->Plug(r0);
+      context()->Plug(r3);
       break;
     case KEYED_SUPER_PROPERTY:
       EmitKeyedSuperPropertyStore(property);
-      context()->Plug(r0);
+      context()->Plug(r3);
       break;
     case KEYED_PROPERTY:
       EmitKeyedPropertyAssignment(expr);
       break;
   }
 }
 
 
 void FullCodeGenerator::VisitYield(Yield* expr) {
   Comment cmnt(masm_, "[ Yield");
   // Evaluate yielded value first; the initial iterator definition depends on
   // this.  It stays on the stack while we update the iterator.
   VisitForStackValue(expr->expression());
 
   switch (expr->yield_kind()) {
     case Yield::kSuspend:
       // Pop value from top-of-stack slot; box result into result register.
       EmitCreateIteratorResult(false);
       __ push(result_register());
-      // Fall through.
+    // Fall through.
     case Yield::kInitial: {
       Label suspend, continuation, post_runtime, resume;
 
-      __ jmp(&suspend);
+      __ b(&suspend);
 
       __ bind(&continuation);
-      __ jmp(&resume);
+      __ b(&resume);
 
       __ bind(&suspend);
       VisitForAccumulatorValue(expr->generator_object());
       DCHECK(continuation.pos() > 0 && Smi::IsValid(continuation.pos()));
-      __ mov(r1, Operand(Smi::FromInt(continuation.pos())));
-      __ str(r1, FieldMemOperand(r0, JSGeneratorObject::kContinuationOffset));
-      __ str(cp, FieldMemOperand(r0, JSGeneratorObject::kContextOffset));
-      __ mov(r1, cp);
-      __ RecordWriteField(r0, JSGeneratorObject::kContextOffset, r1, r2,
+      __ LoadSmiLiteral(r4, Smi::FromInt(continuation.pos()));
+      __ StoreP(r4, FieldMemOperand(r3, JSGeneratorObject::kContinuationOffset),
+                r0);
+      __ StoreP(cp, FieldMemOperand(r3, JSGeneratorObject::kContextOffset), r0);
+      __ mr(r4, cp);
+      __ RecordWriteField(r3, JSGeneratorObject::kContextOffset, r4, r5,
                           kLRHasBeenSaved, kDontSaveFPRegs);
-      __ add(r1, fp, Operand(StandardFrameConstants::kExpressionsOffset));
-      __ cmp(sp, r1);
-      __ b(eq, &post_runtime);
-      __ push(r0);  // generator object
+      __ addi(r4, fp, Operand(StandardFrameConstants::kExpressionsOffset));
+      __ cmp(sp, r4);
+      __ beq(&post_runtime);
+      __ push(r3);  // generator object
       __ CallRuntime(Runtime::kSuspendJSGeneratorObject, 1);
-      __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
+      __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
       __ bind(&post_runtime);
       __ pop(result_register());
       EmitReturnSequence();
 
       __ bind(&resume);
       context()->Plug(result_register());
       break;
     }
 
     case Yield::kFinal: {
       VisitForAccumulatorValue(expr->generator_object());
-      __ mov(r1, Operand(Smi::FromInt(JSGeneratorObject::kGeneratorClosed)));
-      __ str(r1, FieldMemOperand(result_register(),
-                                 JSGeneratorObject::kContinuationOffset));
+      __ LoadSmiLiteral(r4, Smi::FromInt(JSGeneratorObject::kGeneratorClosed));
+      __ StoreP(r4, FieldMemOperand(result_register(),
+                                    JSGeneratorObject::kContinuationOffset),
+                r0);
       // Pop value from top-of-stack slot, box result into result register.
       EmitCreateIteratorResult(true);
       EmitUnwindBeforeReturn();
       EmitReturnSequence();
       break;
     }
 
     case Yield::kDelegating: {
       VisitForStackValue(expr->generator_object());
 
       // Initial stack layout is as follows:
       // [sp + 1 * kPointerSize] iter
       // [sp + 0 * kPointerSize] g
 
       Label l_catch, l_try, l_suspend, l_continuation, l_resume;
-      Label l_next, l_call, l_loop;
+      Label l_next, l_call;
       Register load_receiver = LoadDescriptor::ReceiverRegister();
       Register load_name = LoadDescriptor::NameRegister();
 
       // Initial send value is undefined.
-      __ LoadRoot(r0, Heap::kUndefinedValueRootIndex);
+      __ LoadRoot(r3, Heap::kUndefinedValueRootIndex);
       __ b(&l_next);
 
       // catch (e) { receiver = iter; f = 'throw'; arg = e; goto l_call; }
       __ bind(&l_catch);
       handler_table()->set(expr->index(), Smi::FromInt(l_catch.pos()));
       __ LoadRoot(load_name, Heap::kthrow_stringRootIndex);  // "throw"
-      __ ldr(r3, MemOperand(sp, 1 * kPointerSize));          // iter
-      __ Push(load_name, r3, r0);                       // "throw", iter, except
-      __ jmp(&l_call);
+      __ LoadP(r6, MemOperand(sp, 1 * kPointerSize));        // iter
+      __ Push(load_name, r6, r3);  // "throw", iter, except
+      __ b(&l_call);
 
       // try { received = %yield result }
       // Shuffle the received result above a try handler and yield it without
       // re-boxing.
       __ bind(&l_try);
-      __ pop(r0);                                        // result
+      __ pop(r3);  // result
       __ PushTryHandler(StackHandler::CATCH, expr->index());
       const int handler_size = StackHandlerConstants::kSize;
-      __ push(r0);                                       // result
-      __ jmp(&l_suspend);
+      __ push(r3);  // result
+      __ b(&l_suspend);
       __ bind(&l_continuation);
-      __ jmp(&l_resume);
+      __ b(&l_resume);
       __ bind(&l_suspend);
       const int generator_object_depth = kPointerSize + handler_size;
-      __ ldr(r0, MemOperand(sp, generator_object_depth));
-      __ push(r0);                                       // g
+      __ LoadP(r3, MemOperand(sp, generator_object_depth));
+      __ push(r3);  // g
       DCHECK(l_continuation.pos() > 0 && Smi::IsValid(l_continuation.pos()));
-      __ mov(r1, Operand(Smi::FromInt(l_continuation.pos())));
-      __ str(r1, FieldMemOperand(r0, JSGeneratorObject::kContinuationOffset));
-      __ str(cp, FieldMemOperand(r0, JSGeneratorObject::kContextOffset));
-      __ mov(r1, cp);
-      __ RecordWriteField(r0, JSGeneratorObject::kContextOffset, r1, r2,
+      __ LoadSmiLiteral(r4, Smi::FromInt(l_continuation.pos()));
+      __ StoreP(r4, FieldMemOperand(r3, JSGeneratorObject::kContinuationOffset),
+                r0);
+      __ StoreP(cp, FieldMemOperand(r3, JSGeneratorObject::kContextOffset), r0);
+      __ mr(r4, cp);
+      __ RecordWriteField(r3, JSGeneratorObject::kContextOffset, r4, r5,
                           kLRHasBeenSaved, kDontSaveFPRegs);
       __ CallRuntime(Runtime::kSuspendJSGeneratorObject, 1);
-      __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
-      __ pop(r0);                                      // result
+      __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
+      __ pop(r3);  // result
       EmitReturnSequence();
-      __ bind(&l_resume);                              // received in r0
+      __ bind(&l_resume);  // received in r3
       __ PopTryHandler();
 
       // receiver = iter; f = 'next'; arg = received;
       __ bind(&l_next);
 
       __ LoadRoot(load_name, Heap::knext_stringRootIndex);  // "next"
-      __ ldr(r3, MemOperand(sp, 1 * kPointerSize));         // iter
-      __ Push(load_name, r3, r0);                      // "next", iter, received
+      __ LoadP(r6, MemOperand(sp, 1 * kPointerSize));       // iter
+      __ Push(load_name, r6, r3);  // "next", iter, received
 
       // result = receiver[f](arg);
       __ bind(&l_call);
-      __ ldr(load_receiver, MemOperand(sp, kPointerSize));
-      __ ldr(load_name, MemOperand(sp, 2 * kPointerSize));
+      __ LoadP(load_receiver, MemOperand(sp, kPointerSize));
+      __ LoadP(load_name, MemOperand(sp, 2 * kPointerSize));
       if (FLAG_vector_ics) {
         __ mov(VectorLoadICDescriptor::SlotRegister(),
                Operand(SmiFromSlot(expr->KeyedLoadFeedbackSlot())));
       }
       Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate()).code();
       CallIC(ic, TypeFeedbackId::None());
-      __ mov(r1, r0);
-      __ str(r1, MemOperand(sp, 2 * kPointerSize));
+      __ mr(r4, r3);
+      __ StoreP(r4, MemOperand(sp, 2 * kPointerSize));
       CallFunctionStub stub(isolate(), 1, CALL_AS_METHOD);
       __ CallStub(&stub);
 
-      __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
+      __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
       __ Drop(1);  // The function is still on the stack; drop it.
 
       // if (!result.done) goto l_try;
-      __ bind(&l_loop);
-      __ Move(load_receiver, r0);
+      __ Move(load_receiver, r3);
 
       __ push(load_receiver);                               // save result
       __ LoadRoot(load_name, Heap::kdone_stringRootIndex);  // "done"
       if (FLAG_vector_ics) {
         __ mov(VectorLoadICDescriptor::SlotRegister(),
                Operand(SmiFromSlot(expr->DoneFeedbackSlot())));
       }
-      CallLoadIC(NOT_CONTEXTUAL);                           // r0=result.done
+      CallLoadIC(NOT_CONTEXTUAL);  // r0=result.done
       Handle<Code> bool_ic = ToBooleanStub::GetUninitialized(isolate());
       CallIC(bool_ic);
-      __ cmp(r0, Operand(0));
-      __ b(eq, &l_try);
+      __ cmpi(r3, Operand::Zero());
+      __ beq(&l_try);
 
       // result.value
       __ pop(load_receiver);                                 // result
       __ LoadRoot(load_name, Heap::kvalue_stringRootIndex);  // "value"
       if (FLAG_vector_ics) {
         __ mov(VectorLoadICDescriptor::SlotRegister(),
                Operand(SmiFromSlot(expr->ValueFeedbackSlot())));
       }
-      CallLoadIC(NOT_CONTEXTUAL);                            // r0=result.value
-      context()->DropAndPlug(2, r0);                         // drop iter and g
+      CallLoadIC(NOT_CONTEXTUAL);     // r3=result.value
+      context()->DropAndPlug(2, r3);  // drop iter and g
       break;
     }
   }
 }
 
 
-void FullCodeGenerator::EmitGeneratorResume(Expression *generator,
-    Expression *value,
+void FullCodeGenerator::EmitGeneratorResume(
+    Expression* generator, Expression* value,
     JSGeneratorObject::ResumeMode resume_mode) {
-  // The value stays in r0, and is ultimately read by the resumed generator, as
+  // The value stays in r3, and is ultimately read by the resumed generator, as
   // if CallRuntime(Runtime::kSuspendJSGeneratorObject) returned it. Or it
   // is read to throw the value when the resumed generator is already closed.
-  // r1 will hold the generator object until the activation has been resumed.
+  // r4 will hold the generator object until the activation has been resumed.
   VisitForStackValue(generator);
   VisitForAccumulatorValue(value);
-  __ pop(r1);
+  __ pop(r4);
 
   // Check generator state.
   Label wrong_state, closed_state, done;
-  __ ldr(r3, FieldMemOperand(r1, JSGeneratorObject::kContinuationOffset));
+  __ LoadP(r6, FieldMemOperand(r4, JSGeneratorObject::kContinuationOffset));
   STATIC_ASSERT(JSGeneratorObject::kGeneratorExecuting < 0);
   STATIC_ASSERT(JSGeneratorObject::kGeneratorClosed == 0);
-  __ cmp(r3, Operand(Smi::FromInt(0)));
-  __ b(eq, &closed_state);
-  __ b(lt, &wrong_state);
+  __ CmpSmiLiteral(r6, Smi::FromInt(0), r0);
+  __ beq(&closed_state);
+  __ blt(&wrong_state);
 
   // Load suspended function and context.
-  __ ldr(cp, FieldMemOperand(r1, JSGeneratorObject::kContextOffset));
-  __ ldr(r4, FieldMemOperand(r1, JSGeneratorObject::kFunctionOffset));
+  __ LoadP(cp, FieldMemOperand(r4, JSGeneratorObject::kContextOffset));
+  __ LoadP(r7, FieldMemOperand(r4, JSGeneratorObject::kFunctionOffset));
 
   // Load receiver and store as the first argument.
-  __ ldr(r2, FieldMemOperand(r1, JSGeneratorObject::kReceiverOffset));
-  __ push(r2);
+  __ LoadP(r5, FieldMemOperand(r4, JSGeneratorObject::kReceiverOffset));
+  __ push(r5);
 
   // Push holes for the rest of the arguments to the generator function.
-  __ ldr(r3, FieldMemOperand(r4, JSFunction::kSharedFunctionInfoOffset));
-  __ ldr(r3,
-         FieldMemOperand(r3, SharedFunctionInfo::kFormalParameterCountOffset));
-  __ LoadRoot(r2, Heap::kTheHoleValueRootIndex);
-  Label push_argument_holes, push_frame;
-  __ bind(&push_argument_holes);
-  __ sub(r3, r3, Operand(Smi::FromInt(1)), SetCC);
-  __ b(mi, &push_frame);
-  __ push(r2);
-  __ jmp(&push_argument_holes);
+  __ LoadP(r6, FieldMemOperand(r7, JSFunction::kSharedFunctionInfoOffset));
+  __ LoadWordArith(
+      r6, FieldMemOperand(r6, SharedFunctionInfo::kFormalParameterCountOffset));
+  __ LoadRoot(r5, Heap::kTheHoleValueRootIndex);
+  Label argument_loop, push_frame;
+#if V8_TARGET_ARCH_PPC64
+  __ cmpi(r6, Operand::Zero());
+  __ beq(&push_frame);
+#else
+  __ SmiUntag(r6, SetRC);
+  __ beq(&push_frame, cr0);
+#endif
+  __ mtctr(r6);
+  __ bind(&argument_loop);
+  __ push(r5);
+  __ bdnz(&argument_loop);
 
   // Enter a new JavaScript frame, and initialize its slots as they were when
   // the generator was suspended.
   Label resume_frame;
   __ bind(&push_frame);
-  __ bl(&resume_frame);
-  __ jmp(&done);
+  __ b(&resume_frame, SetLK);
+  __ b(&done);
   __ bind(&resume_frame);
   // lr = return address.
   // fp = caller's frame pointer.
-  // pp = caller's constant pool (if FLAG_enable_ool_constant_pool),
   // cp = callee's context,
-  // r4 = callee's JS function.
-  __ PushFixedFrame(r4);
+  // r7 = callee's JS function.
+  __ PushFixedFrame(r7);
   // Adjust FP to point to saved FP.
-  __ add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp));
+  __ addi(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp));
 
   // Load the operand stack size.
-  __ ldr(r3, FieldMemOperand(r1, JSGeneratorObject::kOperandStackOffset));
-  __ ldr(r3, FieldMemOperand(r3, FixedArray::kLengthOffset));
-  __ SmiUntag(r3);
+  __ LoadP(r6, FieldMemOperand(r4, JSGeneratorObject::kOperandStackOffset));
+  __ LoadP(r6, FieldMemOperand(r6, FixedArray::kLengthOffset));
+  __ SmiUntag(r6, SetRC);
 
   // If we are sending a value and there is no operand stack, we can jump back
   // in directly.
+  Label call_resume;
   if (resume_mode == JSGeneratorObject::NEXT) {
     Label slow_resume;
-    __ cmp(r3, Operand(0));
-    __ b(ne, &slow_resume);
-    __ ldr(r3, FieldMemOperand(r4, JSFunction::kCodeEntryOffset));
-
-    { ConstantPoolUnavailableScope constant_pool_unavailable(masm_);
-      if (FLAG_enable_ool_constant_pool) {
-        // Load the new code object's constant pool pointer.
-        __ ldr(pp,
-               MemOperand(r3, Code::kConstantPoolOffset - Code::kHeaderSize));
-      }
-
-      __ ldr(r2, FieldMemOperand(r1, JSGeneratorObject::kContinuationOffset));
-      __ SmiUntag(r2);
-      __ add(r3, r3, r2);
-      __ mov(r2, Operand(Smi::FromInt(JSGeneratorObject::kGeneratorExecuting)));
-      __ str(r2, FieldMemOperand(r1, JSGeneratorObject::kContinuationOffset));
-      __ Jump(r3);
+    __ bne(&slow_resume, cr0);
+    __ LoadP(ip, FieldMemOperand(r7, JSFunction::kCodeEntryOffset));
+#if V8_OOL_CONSTANT_POOL
+    {
+      ConstantPoolUnavailableScope constant_pool_unavailable(masm_);
+      // Load the new code object's constant pool pointer.
+      __ LoadP(kConstantPoolRegister,
+               MemOperand(ip, Code::kConstantPoolOffset - Code::kHeaderSize));
+#endif
+      __ LoadP(r5, FieldMemOperand(r4, JSGeneratorObject::kContinuationOffset));
+      __ SmiUntag(r5);
+      __ add(ip, ip, r5);
+      __ LoadSmiLiteral(r5,
+                        Smi::FromInt(JSGeneratorObject::kGeneratorExecuting));
+      __ StoreP(r5, FieldMemOperand(r4, JSGeneratorObject::kContinuationOffset),
+                r0);
+      __ Jump(ip);
+      __ bind(&slow_resume);
+#if V8_OOL_CONSTANT_POOL
     }
-    __ bind(&slow_resume);
+#endif
+  } else {
+    __ beq(&call_resume, cr0);
   }
 
   // Otherwise, we push holes for the operand stack and call the runtime to fix
   // up the stack and the handlers.
-  Label push_operand_holes, call_resume;
-  __ bind(&push_operand_holes);
-  __ sub(r3, r3, Operand(1), SetCC);
-  __ b(mi, &call_resume);
-  __ push(r2);
-  __ b(&push_operand_holes);
+  Label operand_loop;
+  __ mtctr(r6);
+  __ bind(&operand_loop);
+  __ push(r5);
+  __ bdnz(&operand_loop);
+
   __ bind(&call_resume);
-  DCHECK(!result_register().is(r1));
-  __ Push(r1, result_register());
+  DCHECK(!result_register().is(r4));
+  __ Push(r4, result_register());
   __ Push(Smi::FromInt(resume_mode));
   __ CallRuntime(Runtime::kResumeJSGeneratorObject, 3);
   // Not reached: the runtime call returns elsewhere.
   __ stop("not-reached");
 
   // Reach here when generator is closed.
   __ bind(&closed_state);
   if (resume_mode == JSGeneratorObject::NEXT) {
     // Return completed iterator result when generator is closed.
-    __ LoadRoot(r2, Heap::kUndefinedValueRootIndex);
-    __ push(r2);
+    __ LoadRoot(r5, Heap::kUndefinedValueRootIndex);
+    __ push(r5);
     // Pop value from top-of-stack slot; box result into result register.
     EmitCreateIteratorResult(true);
   } else {
     // Throw the provided value.
-    __ push(r0);
+    __ push(r3);
     __ CallRuntime(Runtime::kThrow, 1);
   }
-  __ jmp(&done);
+  __ b(&done);
 
   // Throw error if we attempt to operate on a running generator.
   __ bind(&wrong_state);
-  __ push(r1);
+  __ push(r4);
   __ CallRuntime(Runtime::kThrowGeneratorStateError, 1);
 
   __ bind(&done);
   context()->Plug(result_register());
 }
 
 
 void FullCodeGenerator::EmitCreateIteratorResult(bool done) {
   Label gc_required;
   Label allocated;
 
   const int instance_size = 5 * kPointerSize;
   DCHECK_EQ(isolate()->native_context()->iterator_result_map()->instance_size(),
             instance_size);
 
-  __ Allocate(instance_size, r0, r2, r3, &gc_required, TAG_OBJECT);
-  __ jmp(&allocated);
+  __ Allocate(instance_size, r3, r5, r6, &gc_required, TAG_OBJECT);
+  __ b(&allocated);
 
   __ bind(&gc_required);
   __ Push(Smi::FromInt(instance_size));
   __ CallRuntime(Runtime::kAllocateInNewSpace, 1);
-  __ ldr(context_register(),
-         MemOperand(fp, StandardFrameConstants::kContextOffset));
+  __ LoadP(context_register(),
+           MemOperand(fp, StandardFrameConstants::kContextOffset));
 
   __ bind(&allocated);
-  __ ldr(r1, ContextOperand(cp, Context::GLOBAL_OBJECT_INDEX));
-  __ ldr(r1, FieldMemOperand(r1, GlobalObject::kNativeContextOffset));
-  __ ldr(r1, ContextOperand(r1, Context::ITERATOR_RESULT_MAP_INDEX));
-  __ pop(r2);
-  __ mov(r3, Operand(isolate()->factory()->ToBoolean(done)));
-  __ mov(r4, Operand(isolate()->factory()->empty_fixed_array()));
-  __ str(r1, FieldMemOperand(r0, HeapObject::kMapOffset));
-  __ str(r4, FieldMemOperand(r0, JSObject::kPropertiesOffset));
-  __ str(r4, FieldMemOperand(r0, JSObject::kElementsOffset));
-  __ str(r2,
-         FieldMemOperand(r0, JSGeneratorObject::kResultValuePropertyOffset));
-  __ str(r3,
-         FieldMemOperand(r0, JSGeneratorObject::kResultDonePropertyOffset));
+  __ LoadP(r4, ContextOperand(cp, Context::GLOBAL_OBJECT_INDEX));
+  __ LoadP(r4, FieldMemOperand(r4, GlobalObject::kNativeContextOffset));
+  __ LoadP(r4, ContextOperand(r4, Context::ITERATOR_RESULT_MAP_INDEX));
+  __ pop(r5);
+  __ mov(r6, Operand(isolate()->factory()->ToBoolean(done)));
+  __ mov(r7, Operand(isolate()->factory()->empty_fixed_array()));
+  __ StoreP(r4, FieldMemOperand(r3, HeapObject::kMapOffset), r0);
+  __ StoreP(r7, FieldMemOperand(r3, JSObject::kPropertiesOffset), r0);
+  __ StoreP(r7, FieldMemOperand(r3, JSObject::kElementsOffset), r0);
+  __ StoreP(r5,
+            FieldMemOperand(r3, JSGeneratorObject::kResultValuePropertyOffset),
+            r0);
+  __ StoreP(r6,
+            FieldMemOperand(r3, JSGeneratorObject::kResultDonePropertyOffset),
+            r0);
 
   // Only the value field needs a write barrier, as the other values are in the
   // root set.
-  __ RecordWriteField(r0, JSGeneratorObject::kResultValuePropertyOffset,
-                      r2, r3, kLRHasBeenSaved, kDontSaveFPRegs);
+  __ RecordWriteField(r3, JSGeneratorObject::kResultValuePropertyOffset, r5, r6,
+                      kLRHasBeenSaved, kDontSaveFPRegs);
 }
 
 
 void FullCodeGenerator::EmitNamedPropertyLoad(Property* prop) {
   SetSourcePosition(prop->position());
   Literal* key = prop->key()->AsLiteral();
   DCHECK(!prop->IsSuperAccess());
 
   __ mov(LoadDescriptor::NameRegister(), Operand(key->value()));
   if (FLAG_vector_ics) {
@@ skipping 39 matching lines @@
 }
 
 
 void FullCodeGenerator::EmitInlineSmiBinaryOp(BinaryOperation* expr,
                                               Token::Value op,
                                               OverwriteMode mode,
                                               Expression* left_expr,
                                               Expression* right_expr) {
   Label done, smi_case, stub_call;
 
-  Register scratch1 = r2;
-  Register scratch2 = r3;
+  Register scratch1 = r5;
+  Register scratch2 = r6;
 
   // Get the arguments.
-  Register left = r1;
-  Register right = r0;
+  Register left = r4;
+  Register right = r3;
   __ pop(left);
 
   // Perform combined smi check on both operands.
-  __ orr(scratch1, left, Operand(right));
+  __ orx(scratch1, left, right);
   STATIC_ASSERT(kSmiTag == 0);
   JumpPatchSite patch_site(masm_);
   patch_site.EmitJumpIfSmi(scratch1, &smi_case);
 
   __ bind(&stub_call);
   Handle<Code> code = CodeFactory::BinaryOpIC(isolate(), op, mode).code();
   CallIC(code, expr->BinaryOperationFeedbackId());
   patch_site.EmitPatchInfo();
-  __ jmp(&done);
+  __ b(&done);
 
   __ bind(&smi_case);
   // Smi case. This code works the same way as the smi-smi case in the type
-  // recording binary operation stub, see
+  // recording binary operation stub.
   switch (op) {
     case Token::SAR:
       __ GetLeastBitsFromSmi(scratch1, right, 5);
-      __ mov(right, Operand(left, ASR, scratch1));
-      __ bic(right, right, Operand(kSmiTagMask));
+      __ ShiftRightArith(right, left, scratch1);
+      __ ClearRightImm(right, right, Operand(kSmiTagSize + kSmiShiftSize));
       break;
     case Token::SHL: {
+      __ GetLeastBitsFromSmi(scratch2, right, 5);
+#if V8_TARGET_ARCH_PPC64
+      __ ShiftLeft_(right, left, scratch2);
+#else
       __ SmiUntag(scratch1, left);
-      __ GetLeastBitsFromSmi(scratch2, right, 5);
-      __ mov(scratch1, Operand(scratch1, LSL, scratch2));
-      __ TrySmiTag(right, scratch1, &stub_call);
+      __ ShiftLeft_(scratch1, scratch1, scratch2);
+      // Check that the *signed* result fits in a smi
+      __ JumpIfNotSmiCandidate(scratch1, scratch2, &stub_call);
+      __ SmiTag(right, scratch1);
+#endif
       break;
     }
     case Token::SHR: {
       __ SmiUntag(scratch1, left);
       __ GetLeastBitsFromSmi(scratch2, right, 5);
-      __ mov(scratch1, Operand(scratch1, LSR, scratch2));
-      __ tst(scratch1, Operand(0xc0000000));
-      __ b(ne, &stub_call);
+      __ srw(scratch1, scratch1, scratch2);
+      // Unsigned shift is not allowed to produce a negative number.
+      __ JumpIfNotUnsignedSmiCandidate(scratch1, r0, &stub_call);
       __ SmiTag(right, scratch1);
       break;
     }
-    case Token::ADD:
-      __ add(scratch1, left, Operand(right), SetCC);
-      __ b(vs, &stub_call);
-      __ mov(right, scratch1);
+    case Token::ADD: {
+      __ AddAndCheckForOverflow(scratch1, left, right, scratch2, r0);
+      __ bne(&stub_call, cr0);
+      __ mr(right, scratch1);
       break;
-    case Token::SUB:
-      __ sub(scratch1, left, Operand(right), SetCC);
-      __ b(vs, &stub_call);
-      __ mov(right, scratch1);
+    }
+    case Token::SUB: {
+      __ SubAndCheckForOverflow(scratch1, left, right, scratch2, r0);
+      __ bne(&stub_call, cr0);
+      __ mr(right, scratch1);
       break;
+    }
     case Token::MUL: {
+      Label mul_zero;
+#if V8_TARGET_ARCH_PPC64
+      // Remove tag from both operands.
       __ SmiUntag(ip, right);
-      __ smull(scratch1, scratch2, left, ip);
-      __ mov(ip, Operand(scratch1, ASR, 31));
-      __ cmp(ip, Operand(scratch2));
-      __ b(ne, &stub_call);
-      __ cmp(scratch1, Operand::Zero());
-      __ mov(right, Operand(scratch1), LeaveCC, ne);
-      __ b(ne, &done);
-      __ add(scratch2, right, Operand(left), SetCC);
-      __ mov(right, Operand(Smi::FromInt(0)), LeaveCC, pl);
-      __ b(mi, &stub_call);
+      __ SmiUntag(r0, left);
+      __ Mul(scratch1, r0, ip);
+      // Check for overflowing the smi range - no overflow if higher 33 bits of
+      // the result are identical.
+      __ TestIfInt32(scratch1, scratch2, ip);
+      __ bne(&stub_call);
+#else
+      __ SmiUntag(ip, right);
+      __ mullw(scratch1, left, ip);
+      __ mulhw(scratch2, left, ip);
+      // Check for overflowing the smi range - no overflow if higher 33 bits of
+      // the result are identical.
+      __ TestIfInt32(scratch2, scratch1, ip);
+      __ bne(&stub_call);
+#endif
+      // Go slow on zero result to handle -0.
+      __ cmpi(scratch1, Operand::Zero());
+      __ beq(&mul_zero);
+#if V8_TARGET_ARCH_PPC64
+      __ SmiTag(right, scratch1);
+#else
+      __ mr(right, scratch1);
+#endif
+      __ b(&done);
+      // We need -0 if we were multiplying a negative number with 0 to get 0.
+      // We know one of them was zero.
+      __ bind(&mul_zero);
+      __ add(scratch2, right, left);
+      __ cmpi(scratch2, Operand::Zero());
+      __ blt(&stub_call);
+      __ LoadSmiLiteral(right, Smi::FromInt(0));
       break;
     }
     case Token::BIT_OR:
-      __ orr(right, left, Operand(right));
+      __ orx(right, left, right);
       break;
     case Token::BIT_AND:
-      __ and_(right, left, Operand(right));
+      __ and_(right, left, right);
       break;
     case Token::BIT_XOR:
-      __ eor(right, left, Operand(right));
+      __ xor_(right, left, right);
       break;
     default:
       UNREACHABLE();
   }
 
   __ bind(&done);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitClassDefineProperties(ClassLiteral* lit) {
-  // Constructor is in r0.
+  // Constructor is in r3.
   DCHECK(lit != NULL);
-  __ push(r0);
+  __ push(r3);
 
   // No access check is needed here since the constructor is created by the
   // class literal.
-  Register scratch = r1;
-  __ ldr(scratch,
-         FieldMemOperand(r0, JSFunction::kPrototypeOrInitialMapOffset));
+  Register scratch = r4;
+  __ LoadP(scratch,
+           FieldMemOperand(r3, JSFunction::kPrototypeOrInitialMapOffset));
   __ push(scratch);
 
   for (int i = 0; i < lit->properties()->length(); i++) {
     ObjectLiteral::Property* property = lit->properties()->at(i);
     Literal* key = property->key()->AsLiteral();
     Expression* value = property->value();
     DCHECK(key != NULL);
 
     if (property->is_static()) {
-      __ ldr(scratch, MemOperand(sp, kPointerSize));  // constructor
+      __ LoadP(scratch, MemOperand(sp, kPointerSize));  // constructor
     } else {
-      __ ldr(scratch, MemOperand(sp, 0));  // prototype
+      __ LoadP(scratch, MemOperand(sp, 0));  // prototype
     }
     __ push(scratch);
     VisitForStackValue(key);
     VisitForStackValue(value);
 
     switch (property->kind()) {
       case ObjectLiteral::Property::CONSTANT:
       case ObjectLiteral::Property::MATERIALIZED_LITERAL:
       case ObjectLiteral::Property::COMPUTED:
       case ObjectLiteral::Property::PROTOTYPE:
@@ skipping 14 matching lines @@
   }
 
   // prototype
   __ CallRuntime(Runtime::kToFastProperties, 1);
 
   // constructor
   __ CallRuntime(Runtime::kToFastProperties, 1);
 }
 
 
-void FullCodeGenerator::EmitBinaryOp(BinaryOperation* expr,
-                                     Token::Value op,
+void FullCodeGenerator::EmitBinaryOp(BinaryOperation* expr, Token::Value op,
                                      OverwriteMode mode) {
-  __ pop(r1);
+  __ pop(r4);
   Handle<Code> code = CodeFactory::BinaryOpIC(isolate(), op, mode).code();
-  JumpPatchSite patch_site(masm_);    // unbound, signals no inlined smi code.
+  JumpPatchSite patch_site(masm_);  // unbound, signals no inlined smi code.
   CallIC(code, expr->BinaryOperationFeedbackId());
   patch_site.EmitPatchInfo();
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitAssignment(Expression* expr) {
   DCHECK(expr->IsValidReferenceExpression());
 
   Property* prop = expr->AsProperty();
   LhsKind assign_type = GetAssignType(prop);
 
   switch (assign_type) {
     case VARIABLE: {
       Variable* var = expr->AsVariableProxy()->var();
       EffectContext context(this);
       EmitVariableAssignment(var, Token::ASSIGN);
       break;
     }
     case NAMED_PROPERTY: {
-      __ push(r0);  // Preserve value.
+      __ push(r3);  // Preserve value.
       VisitForAccumulatorValue(prop->obj());
-      __ Move(StoreDescriptor::ReceiverRegister(), r0);
+      __ Move(StoreDescriptor::ReceiverRegister(), r3);
       __ pop(StoreDescriptor::ValueRegister());  // Restore value.
       __ mov(StoreDescriptor::NameRegister(),
              Operand(prop->key()->AsLiteral()->value()));
       CallStoreIC();
       break;
     }
     case NAMED_SUPER_PROPERTY: {
-      __ Push(r0);
+      __ Push(r3);
       VisitForStackValue(prop->obj()->AsSuperReference()->this_var());
       EmitLoadHomeObject(prop->obj()->AsSuperReference());
-      // stack: value, this; r0: home_object
-      Register scratch = r2;
-      Register scratch2 = r3;
-      __ mov(scratch, result_register());              // home_object
-      __ ldr(r0, MemOperand(sp, kPointerSize));        // value
-      __ ldr(scratch2, MemOperand(sp, 0));             // this
-      __ str(scratch2, MemOperand(sp, kPointerSize));  // this
-      __ str(scratch, MemOperand(sp, 0));              // home_object
-      // stack: this, home_object; r0: value
+      // stack: value, this; r3: home_object
+      Register scratch = r5;
+      Register scratch2 = r6;
+      __ mr(scratch, result_register());                  // home_object
+      __ LoadP(r3, MemOperand(sp, kPointerSize));         // value
+      __ LoadP(scratch2, MemOperand(sp, 0));              // this
+      __ StoreP(scratch2, MemOperand(sp, kPointerSize));  // this
+      __ StoreP(scratch, MemOperand(sp, 0));              // home_object
+      // stack: this, home_object; r3: value
       EmitNamedSuperPropertyStore(prop);
       break;
     }
     case KEYED_SUPER_PROPERTY: {
-      __ Push(r0);
+      __ Push(r3);
       VisitForStackValue(prop->obj()->AsSuperReference()->this_var());
       EmitLoadHomeObject(prop->obj()->AsSuperReference());
       __ Push(result_register());
       VisitForAccumulatorValue(prop->key());
-      Register scratch = r2;
-      Register scratch2 = r3;
-      __ ldr(scratch2, MemOperand(sp, 2 * kPointerSize));  // value
-      // stack: value, this, home_object; r0: key, r3: value
-      __ ldr(scratch, MemOperand(sp, kPointerSize));  // this
-      __ str(scratch, MemOperand(sp, 2 * kPointerSize));
-      __ ldr(scratch, MemOperand(sp, 0));  // home_object
-      __ str(scratch, MemOperand(sp, kPointerSize));
-      __ str(r0, MemOperand(sp, 0));
-      __ Move(r0, scratch2);
-      // stack: this, home_object, key; r0: value.
+      Register scratch = r5;
+      Register scratch2 = r6;
+      __ LoadP(scratch2, MemOperand(sp, 2 * kPointerSize));  // value
+      // stack: value, this, home_object; r3: key, r6: value
+      __ LoadP(scratch, MemOperand(sp, kPointerSize));  // this
+      __ StoreP(scratch, MemOperand(sp, 2 * kPointerSize));
+      __ LoadP(scratch, MemOperand(sp, 0));  // home_object
+      __ StoreP(scratch, MemOperand(sp, kPointerSize));
+      __ StoreP(r3, MemOperand(sp, 0));
+      __ Move(r3, scratch2);
+      // stack: this, home_object, key; r3: value.
       EmitKeyedSuperPropertyStore(prop);
       break;
     }
     case KEYED_PROPERTY: {
-      __ push(r0);  // Preserve value.
+      __ push(r3);  // Preserve value.
       VisitForStackValue(prop->obj());
       VisitForAccumulatorValue(prop->key());
-      __ Move(StoreDescriptor::NameRegister(), r0);
+      __ Move(StoreDescriptor::NameRegister(), r3);
       __ Pop(StoreDescriptor::ValueRegister(),
              StoreDescriptor::ReceiverRegister());
       Handle<Code> ic =
           CodeFactory::KeyedStoreIC(isolate(), strict_mode()).code();
       CallIC(ic);
       break;
     }
   }
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitStoreToStackLocalOrContextSlot(
     Variable* var, MemOperand location) {
-  __ str(result_register(), location);
+  __ StoreP(result_register(), location, r0);
   if (var->IsContextSlot()) {
     // RecordWrite may destroy all its register arguments.
-    __ mov(r3, result_register());
+    __ mr(r6, result_register());
     int offset = Context::SlotOffset(var->index());
-    __ RecordWriteContextSlot(
-        r1, offset, r3, r2, kLRHasBeenSaved, kDontSaveFPRegs);
+    __ RecordWriteContextSlot(r4, offset, r6, r5, kLRHasBeenSaved,
+                              kDontSaveFPRegs);
   }
 }
 
 
 void FullCodeGenerator::EmitVariableAssignment(Variable* var, Token::Value op) {
   if (var->IsUnallocated()) {
     // Global var, const, or let.
     __ mov(StoreDescriptor::NameRegister(), Operand(var->name()));
-    __ ldr(StoreDescriptor::ReceiverRegister(), GlobalObjectOperand());
+    __ LoadP(StoreDescriptor::ReceiverRegister(), GlobalObjectOperand());
     CallStoreIC();
 
   } else if (op == Token::INIT_CONST_LEGACY) {
     // Const initializers need a write barrier.
     DCHECK(!var->IsParameter());  // No const parameters.
     if (var->IsLookupSlot()) {
-      __ push(r0);
-      __ mov(r0, Operand(var->name()));
-      __ Push(cp, r0);  // Context and name.
+      __ push(r3);
+      __ mov(r3, Operand(var->name()));
+      __ Push(cp, r3);  // Context and name.
       __ CallRuntime(Runtime::kInitializeLegacyConstLookupSlot, 3);
     } else {
       DCHECK(var->IsStackAllocated() || var->IsContextSlot());
       Label skip;
-      MemOperand location = VarOperand(var, r1);
-      __ ldr(r2, location);
-      __ CompareRoot(r2, Heap::kTheHoleValueRootIndex);
-      __ b(ne, &skip);
+      MemOperand location = VarOperand(var, r4);
+      __ LoadP(r5, location);
+      __ CompareRoot(r5, Heap::kTheHoleValueRootIndex);
+      __ bne(&skip);
       EmitStoreToStackLocalOrContextSlot(var, location);
       __ bind(&skip);
     }
 
   } else if (var->mode() == LET && op != Token::INIT_LET) {
     // Non-initializing assignment to let variable needs a write barrier.
     DCHECK(!var->IsLookupSlot());
     DCHECK(var->IsStackAllocated() || var->IsContextSlot());
     Label assign;
-    MemOperand location = VarOperand(var, r1);
-    __ ldr(r3, location);
-    __ CompareRoot(r3, Heap::kTheHoleValueRootIndex);
-    __ b(ne, &assign);
-    __ mov(r3, Operand(var->name()));
-    __ push(r3);
+    MemOperand location = VarOperand(var, r4);
+    __ LoadP(r6, location);
+    __ CompareRoot(r6, Heap::kTheHoleValueRootIndex);
+    __ bne(&assign);
+    __ mov(r6, Operand(var->name()));
+    __ push(r6);
     __ CallRuntime(Runtime::kThrowReferenceError, 1);
     // Perform the assignment.
     __ bind(&assign);
     EmitStoreToStackLocalOrContextSlot(var, location);
 
   } else if (!var->is_const_mode() || op == Token::INIT_CONST) {
     if (var->IsLookupSlot()) {
       // Assignment to var.
-      __ push(r0);  // Value.
-      __ mov(r1, Operand(var->name()));
-      __ mov(r0, Operand(Smi::FromInt(strict_mode())));
-      __ Push(cp, r1, r0);  // Context, name, strict mode.
+      __ push(r3);  // Value.
+      __ mov(r4, Operand(var->name()));
+      __ mov(r3, Operand(Smi::FromInt(strict_mode())));
+      __ Push(cp, r4, r3);  // Context, name, strict mode.
       __ CallRuntime(Runtime::kStoreLookupSlot, 4);
     } else {
       // Assignment to var or initializing assignment to let/const in harmony
       // mode.
       DCHECK((var->IsStackAllocated() || var->IsContextSlot()));
-      MemOperand location = VarOperand(var, r1);
+      MemOperand location = VarOperand(var, r4);
       if (generate_debug_code_ && op == Token::INIT_LET) {
         // Check for an uninitialized let binding.
-        __ ldr(r2, location);
-        __ CompareRoot(r2, Heap::kTheHoleValueRootIndex);
+        __ LoadP(r5, location);
+        __ CompareRoot(r5, Heap::kTheHoleValueRootIndex);
         __ Check(eq, kLetBindingReInitialization);
       }
       EmitStoreToStackLocalOrContextSlot(var, location);
     }
   }
   // Non-initializing assignments to consts are ignored.
 }
 
 
 void FullCodeGenerator::EmitNamedPropertyAssignment(Assignment* expr) {
   // Assignment to a property, using a named store IC.
   Property* prop = expr->target()->AsProperty();
   DCHECK(prop != NULL);
   DCHECK(prop->key()->IsLiteral());
 
   // Record source code position before IC call.
   SetSourcePosition(expr->position());
   __ mov(StoreDescriptor::NameRegister(),
          Operand(prop->key()->AsLiteral()->value()));
   __ pop(StoreDescriptor::ReceiverRegister());
   CallStoreIC(expr->AssignmentFeedbackId());
 
   PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitNamedSuperPropertyStore(Property* prop) {
   // Assignment to named property of super.
-  // r0 : value
+  // r3 : value
   // stack : receiver ('this'), home_object
   DCHECK(prop != NULL);
   Literal* key = prop->key()->AsLiteral();
   DCHECK(key != NULL);
 
   __ Push(key->value());
-  __ Push(r0);
+  __ Push(r3);
   __ CallRuntime((strict_mode() == STRICT ? Runtime::kStoreToSuper_Strict
                                           : Runtime::kStoreToSuper_Sloppy),
                  4);
 }
 
 
 void FullCodeGenerator::EmitKeyedSuperPropertyStore(Property* prop) {
   // Assignment to named property of super.
-  // r0 : value
+  // r3 : value
   // stack : receiver ('this'), home_object, key
   DCHECK(prop != NULL);
 
-  __ Push(r0);
+  __ Push(r3);
   __ CallRuntime((strict_mode() == STRICT ? Runtime::kStoreKeyedToSuper_Strict
                                           : Runtime::kStoreKeyedToSuper_Sloppy),
                  4);
 }
 
 
 void FullCodeGenerator::EmitKeyedPropertyAssignment(Assignment* expr) {
   // Assignment to a property, using a keyed store IC.
 
   // Record source code position before IC call.
   SetSourcePosition(expr->position());
   __ Pop(StoreDescriptor::ReceiverRegister(), StoreDescriptor::NameRegister());
-  DCHECK(StoreDescriptor::ValueRegister().is(r0));
+  DCHECK(StoreDescriptor::ValueRegister().is(r3));
 
   Handle<Code> ic = CodeFactory::KeyedStoreIC(isolate(), strict_mode()).code();
   CallIC(ic, expr->AssignmentFeedbackId());
 
   PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::VisitProperty(Property* expr) {
   Comment cmnt(masm_, "[ Property");
   Expression* key = expr->key();
 
   if (key->IsPropertyName()) {
     if (!expr->IsSuperAccess()) {
       VisitForAccumulatorValue(expr->obj());
-      __ Move(LoadDescriptor::ReceiverRegister(), r0);
+      __ Move(LoadDescriptor::ReceiverRegister(), r3);
       EmitNamedPropertyLoad(expr);
     } else {
       VisitForStackValue(expr->obj()->AsSuperReference()->this_var());
       EmitLoadHomeObject(expr->obj()->AsSuperReference());
       __ Push(result_register());
       EmitNamedSuperPropertyLoad(expr);
     }
     PrepareForBailoutForId(expr->LoadId(), TOS_REG);
-    context()->Plug(r0);
+    context()->Plug(r3);
   } else {
     if (!expr->IsSuperAccess()) {
       VisitForStackValue(expr->obj());
       VisitForAccumulatorValue(expr->key());
-      __ Move(LoadDescriptor::NameRegister(), r0);
+      __ Move(LoadDescriptor::NameRegister(), r3);
       __ pop(LoadDescriptor::ReceiverRegister());
       EmitKeyedPropertyLoad(expr);
     } else {
       VisitForStackValue(expr->obj()->AsSuperReference()->this_var());
       EmitLoadHomeObject(expr->obj()->AsSuperReference());
       __ Push(result_register());
       VisitForStackValue(expr->key());
       EmitKeyedSuperPropertyLoad(expr);
     }
-    context()->Plug(r0);
+    context()->Plug(r3);
   }
 }
 
 
-void FullCodeGenerator::CallIC(Handle<Code> code,
-                               TypeFeedbackId ast_id) {
+void FullCodeGenerator::CallIC(Handle<Code> code, TypeFeedbackId ast_id) {
   ic_total_count_++;
-  // All calls must have a predictable size in full-codegen code to ensure that
-  // the debugger can patch them correctly.
-  __ Call(code, RelocInfo::CODE_TARGET, ast_id, al,
-          NEVER_INLINE_TARGET_ADDRESS);
+  __ Call(code, RelocInfo::CODE_TARGET, ast_id);
 }
 
 
 // Code common for calls using the IC.
 void FullCodeGenerator::EmitCallWithLoadIC(Call* expr) {
   Expression* callee = expr->expression();
 
   CallICState::CallType call_type =
       callee->IsVariableProxy() ? CallICState::FUNCTION : CallICState::METHOD;
 
   // Get the target function.
   if (call_type == CallICState::FUNCTION) {
-    { StackValueContext context(this);
+    {
+      StackValueContext context(this);
       EmitVariableLoad(callee->AsVariableProxy());
       PrepareForBailout(callee, NO_REGISTERS);
     }
     // Push undefined as receiver. This is patched in the method prologue if it
     // is a sloppy mode method.
     __ Push(isolate()->factory()->undefined_value());
   } else {
     // Load the function from the receiver.
     DCHECK(callee->IsProperty());
     DCHECK(!callee->AsProperty()->IsSuperAccess());
-    __ ldr(LoadDescriptor::ReceiverRegister(), MemOperand(sp, 0));
+    __ LoadP(LoadDescriptor::ReceiverRegister(), MemOperand(sp, 0));
     EmitNamedPropertyLoad(callee->AsProperty());
     PrepareForBailoutForId(callee->AsProperty()->LoadId(), TOS_REG);
     // Push the target function under the receiver.
-    __ ldr(ip, MemOperand(sp, 0));
+    __ LoadP(ip, MemOperand(sp, 0));
     __ push(ip);
-    __ str(r0, MemOperand(sp, kPointerSize));
+    __ StoreP(r3, MemOperand(sp, kPointerSize));
   }
 
   EmitCall(expr, call_type);
 }
 
 
 void FullCodeGenerator::EmitSuperCallWithLoadIC(Call* expr) {
   Expression* callee = expr->expression();
   DCHECK(callee->IsProperty());
   Property* prop = callee->AsProperty();
   DCHECK(prop->IsSuperAccess());
 
   SetSourcePosition(prop->position());
   Literal* key = prop->key()->AsLiteral();
   DCHECK(!key->value()->IsSmi());
   // Load the function from the receiver.
-  const Register scratch = r1;
+  const Register scratch = r4;
   SuperReference* super_ref = prop->obj()->AsSuperReference();
   EmitLoadHomeObject(super_ref);
-  __ Push(r0);
+  __ mr(scratch, r3);
   VisitForAccumulatorValue(super_ref->this_var());
-  __ Push(r0);
-  __ Push(r0);
-  __ ldr(scratch, MemOperand(sp, kPointerSize * 2));
-  __ Push(scratch);
+  __ Push(scratch, r3, r3, scratch);
   __ Push(key->value());
 
   // Stack here:
   //  - home_object
   //  - this (receiver)
   //  - this (receiver) <-- LoadFromSuper will pop here and below.
   //  - home_object
   //  - key
   __ CallRuntime(Runtime::kLoadFromSuper, 3);
 
   // Replace home_object with target function.
-  __ str(r0, MemOperand(sp, kPointerSize));
+  __ StoreP(r3, MemOperand(sp, kPointerSize));
 
   // Stack here:
   // - target function
   // - this (receiver)
   EmitCall(expr, CallICState::METHOD);
 }
 
 
 // Code common for calls using the IC.
-void FullCodeGenerator::EmitKeyedCallWithLoadIC(Call* expr,
-                                                Expression* key) {
+void FullCodeGenerator::EmitKeyedCallWithLoadIC(Call* expr, Expression* key) {
   // Load the key.
   VisitForAccumulatorValue(key);
 
   Expression* callee = expr->expression();
 
   // Load the function from the receiver.
   DCHECK(callee->IsProperty());
-  __ ldr(LoadDescriptor::ReceiverRegister(), MemOperand(sp, 0));
-  __ Move(LoadDescriptor::NameRegister(), r0);
+  __ LoadP(LoadDescriptor::ReceiverRegister(), MemOperand(sp, 0));
+  __ Move(LoadDescriptor::NameRegister(), r3);
   EmitKeyedPropertyLoad(callee->AsProperty());
   PrepareForBailoutForId(callee->AsProperty()->LoadId(), TOS_REG);
 
   // Push the target function under the receiver.
-  __ ldr(ip, MemOperand(sp, 0));
+  __ LoadP(ip, MemOperand(sp, 0));
   __ push(ip);
-  __ str(r0, MemOperand(sp, kPointerSize));
+  __ StoreP(r3, MemOperand(sp, kPointerSize));
 
   EmitCall(expr, CallICState::METHOD);
 }
 
 
 void FullCodeGenerator::EmitKeyedSuperCallWithLoadIC(Call* expr) {
   Expression* callee = expr->expression();
   DCHECK(callee->IsProperty());
   Property* prop = callee->AsProperty();
   DCHECK(prop->IsSuperAccess());
 
   SetSourcePosition(prop->position());
   // Load the function from the receiver.
-  const Register scratch = r1;
+  const Register scratch = r4;
   SuperReference* super_ref = prop->obj()->AsSuperReference();
   EmitLoadHomeObject(super_ref);
-  __ Push(r0);
+  __ Push(r3);
   VisitForAccumulatorValue(super_ref->this_var());
-  __ Push(r0);
-  __ Push(r0);
-  __ ldr(scratch, MemOperand(sp, kPointerSize * 2));
+  __ Push(r3);
+  __ Push(r3);
+  __ LoadP(scratch, MemOperand(sp, kPointerSize * 2));
   __ Push(scratch);
   VisitForStackValue(prop->key());
 
   // Stack here:
   //  - home_object
   //  - this (receiver)
   //  - this (receiver) <-- LoadKeyedFromSuper will pop here and below.
   //  - home_object
   //  - key
   __ CallRuntime(Runtime::kLoadKeyedFromSuper, 3);
 
   // Replace home_object with target function.
-  __ str(r0, MemOperand(sp, kPointerSize));
+  __ StoreP(r3, MemOperand(sp, kPointerSize));
 
   // Stack here:
   // - target function
   // - this (receiver)
   EmitCall(expr, CallICState::METHOD);
 }
 
 
 void FullCodeGenerator::EmitCall(Call* expr, CallICState::CallType call_type) {
   // Load the arguments.
   ZoneList<Expression*>* args = expr->arguments();
   int arg_count = args->length();
-  { PreservePositionScope scope(masm()->positions_recorder());
+  {
+    PreservePositionScope scope(masm()->positions_recorder());
     for (int i = 0; i < arg_count; i++) {
       VisitForStackValue(args->at(i));
     }
   }
 
   // Record source position of the IC call.
   SetSourcePosition(expr->position());
-  Handle<Code> ic = CallIC::initialize_stub(
-      isolate(), arg_count, call_type);
-  __ mov(r3, Operand(SmiFromSlot(expr->CallFeedbackSlot())));
-  __ ldr(r1, MemOperand(sp, (arg_count + 1) * kPointerSize));
+  Handle<Code> ic = CallIC::initialize_stub(isolate(), arg_count, call_type);
+  __ LoadSmiLiteral(r6, SmiFromSlot(expr->CallFeedbackSlot()));
+  __ LoadP(r4, MemOperand(sp, (arg_count + 1) * kPointerSize), r0);
   // Don't assign a type feedback id to the IC, since type feedback is provided
   // by the vector above.
   CallIC(ic);
 
   RecordJSReturnSite(expr);
   // Restore context register.
-  __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
-  context()->DropAndPlug(1, r0);
+  __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
+  context()->DropAndPlug(1, r3);
 }
 
 
 void FullCodeGenerator::EmitResolvePossiblyDirectEval(int arg_count) {
-  // r5: copy of the first argument or undefined if it doesn't exist.
+  // r8: copy of the first argument or undefined if it doesn't exist.
   if (arg_count > 0) {
-    __ ldr(r5, MemOperand(sp, arg_count * kPointerSize));
+    __ LoadP(r8, MemOperand(sp, arg_count * kPointerSize), r0);
   } else {
-    __ LoadRoot(r5, Heap::kUndefinedValueRootIndex);
+    __ LoadRoot(r8, Heap::kUndefinedValueRootIndex);
   }
 
-  // r4: the receiver of the enclosing function.
-  __ ldr(r4, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
+  // r7: the receiver of the enclosing function.
+  __ LoadP(r7, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
 
-  // r3: the receiver of the enclosing function.
+  // r6: the receiver of the enclosing function.
   int receiver_offset = 2 + info_->scope()->num_parameters();
-  __ ldr(r3, MemOperand(fp, receiver_offset * kPointerSize));
+  __ LoadP(r6, MemOperand(fp, receiver_offset * kPointerSize), r0);
 
-  // r2: strict mode.
-  __ mov(r2, Operand(Smi::FromInt(strict_mode())));
+  // r5: strict mode.
+  __ LoadSmiLiteral(r5, Smi::FromInt(strict_mode()));
 
-  // r1: the start position of the scope the calls resides in.
-  __ mov(r1, Operand(Smi::FromInt(scope()->start_position())));
+  // r4: the start position of the scope the calls resides in.
+  __ LoadSmiLiteral(r4, Smi::FromInt(scope()->start_position()));
 
   // Do the runtime call.
-  __ Push(r5);
-  __ Push(r4, r3, r2, r1);
+  __ Push(r8, r7, r6, r5, r4);
   __ CallRuntime(Runtime::kResolvePossiblyDirectEval, 6);
 }
 
 
 void FullCodeGenerator::EmitLoadSuperConstructor(SuperReference* super_ref) {
   DCHECK(super_ref != NULL);
-  __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
-  __ Push(r0);
+  __ LoadP(r3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
+  __ Push(r3);
   __ CallRuntime(Runtime::kGetPrototype, 1);
 }
 
 
 void FullCodeGenerator::VisitCall(Call* expr) {
 #ifdef DEBUG
   // We want to verify that RecordJSReturnSite gets called on all paths
   // through this function.  Avoid early returns.
   expr->return_is_recorded_ = false;
 #endif
 
   Comment cmnt(masm_, "[ Call");
   Expression* callee = expr->expression();
   Call::CallType call_type = expr->GetCallType(isolate());
 
   if (call_type == Call::POSSIBLY_EVAL_CALL) {
     // In a call to eval, we first call RuntimeHidden_ResolvePossiblyDirectEval
     // to resolve the function we need to call and the receiver of the
     // call.  Then we call the resolved function using the given
     // arguments.
     ZoneList<Expression*>* args = expr->arguments();
     int arg_count = args->length();
 
-    { PreservePositionScope pos_scope(masm()->positions_recorder());
+    {
+      PreservePositionScope pos_scope(masm()->positions_recorder());
       VisitForStackValue(callee);
-      __ LoadRoot(r2, Heap::kUndefinedValueRootIndex);
-      __ push(r2);  // Reserved receiver slot.
+      __ LoadRoot(r5, Heap::kUndefinedValueRootIndex);
+      __ push(r5);  // Reserved receiver slot.
 
       // Push the arguments.
       for (int i = 0; i < arg_count; i++) {
         VisitForStackValue(args->at(i));
       }
 
       // Push a copy of the function (found below the arguments) and
       // resolve eval.
-      __ ldr(r1, MemOperand(sp, (arg_count + 1) * kPointerSize));
-      __ push(r1);
+      __ LoadP(r4, MemOperand(sp, (arg_count + 1) * kPointerSize), r0);
+      __ push(r4);
       EmitResolvePossiblyDirectEval(arg_count);
 
-      // The runtime call returns a pair of values in r0 (function) and
-      // r1 (receiver). Touch up the stack with the right values.
-      __ str(r0, MemOperand(sp, (arg_count + 1) * kPointerSize));
-      __ str(r1, MemOperand(sp, arg_count * kPointerSize));
+      // The runtime call returns a pair of values in r3 (function) and
+      // r4 (receiver). Touch up the stack with the right values.
+      __ StoreP(r3, MemOperand(sp, (arg_count + 1) * kPointerSize), r0);
+      __ StoreP(r4, MemOperand(sp, arg_count * kPointerSize), r0);
 
       PrepareForBailoutForId(expr->EvalOrLookupId(), NO_REGISTERS);
     }
 
     // Record source position for debugger.
     SetSourcePosition(expr->position());
     CallFunctionStub stub(isolate(), arg_count, NO_CALL_FUNCTION_FLAGS);
-    __ ldr(r1, MemOperand(sp, (arg_count + 1) * kPointerSize));
+    __ LoadP(r4, MemOperand(sp, (arg_count + 1) * kPointerSize), r0);
     __ CallStub(&stub);
     RecordJSReturnSite(expr);
     // Restore context register.
-    __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
-    context()->DropAndPlug(1, r0);
+    __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
+    context()->DropAndPlug(1, r3);
   } else if (call_type == Call::GLOBAL_CALL) {
     EmitCallWithLoadIC(expr);
 
   } else if (call_type == Call::LOOKUP_SLOT_CALL) {
     // Call to a lookup slot (dynamically introduced variable).
     VariableProxy* proxy = callee->AsVariableProxy();
     Label slow, done;
 
-    { PreservePositionScope scope(masm()->positions_recorder());
+    {
+      PreservePositionScope scope(masm()->positions_recorder());
       // Generate code for loading from variables potentially shadowed
       // by eval-introduced variables.
       EmitDynamicLookupFastCase(proxy, NOT_INSIDE_TYPEOF, &slow, &done);
     }
 
     __ bind(&slow);
-    // Call the runtime to find the function to call (returned in r0)
+    // Call the runtime to find the function to call (returned in r3)
     // and the object holding it (returned in edx).
-    DCHECK(!context_register().is(r2));
-    __ mov(r2, Operand(proxy->name()));
-    __ Push(context_register(), r2);
+    DCHECK(!context_register().is(r5));
+    __ mov(r5, Operand(proxy->name()));
+    __ Push(context_register(), r5);
     __ CallRuntime(Runtime::kLoadLookupSlot, 2);
-    __ Push(r0, r1);  // Function, receiver.
+    __ Push(r3, r4);  // Function, receiver.
     PrepareForBailoutForId(expr->EvalOrLookupId(), NO_REGISTERS);
 
     // If fast case code has been generated, emit code to push the
     // function and receiver and have the slow path jump around this
     // code.
     if (done.is_linked()) {
       Label call;
       __ b(&call);
       __ bind(&done);
       // Push function.
-      __ push(r0);
+      __ push(r3);
       // The receiver is implicitly the global receiver. Indicate this
       // by passing the hole to the call function stub.
-      __ LoadRoot(r1, Heap::kUndefinedValueRootIndex);
-      __ push(r1);
+      __ LoadRoot(r4, Heap::kUndefinedValueRootIndex);
+      __ push(r4);
       __ bind(&call);
     }
 
     // The receiver is either the global receiver or an object found
     // by LoadContextSlot.
     EmitCall(expr);
   } else if (call_type == Call::PROPERTY_CALL) {
     Property* property = callee->AsProperty();
     bool is_named_call = property->key()->IsPropertyName();
     if (property->IsSuperAccess()) {
@@ skipping 15 matching lines @@
     }
   } else if (call_type == Call::SUPER_CALL) {
     SuperReference* super_ref = callee->AsSuperReference();
     EmitLoadSuperConstructor(super_ref);
     __ Push(result_register());
     VisitForStackValue(super_ref->this_var());
     EmitCall(expr, CallICState::METHOD);
   } else {
     DCHECK(call_type == Call::OTHER_CALL);
     // Call to an arbitrary expression not handled specially above.
-    { PreservePositionScope scope(masm()->positions_recorder());
+    {
+      PreservePositionScope scope(masm()->positions_recorder());
       VisitForStackValue(callee);
     }
-    __ LoadRoot(r1, Heap::kUndefinedValueRootIndex);
-    __ push(r1);
+    __ LoadRoot(r4, Heap::kUndefinedValueRootIndex);
+    __ push(r4);
     // Emit function call.
     EmitCall(expr);
   }
 
 #ifdef DEBUG
   // RecordJSReturnSite should have been called.
   DCHECK(expr->return_is_recorded_);
 #endif
 }
 
@@ skipping 18 matching lines @@
   ZoneList<Expression*>* args = expr->arguments();
   int arg_count = args->length();
   for (int i = 0; i < arg_count; i++) {
     VisitForStackValue(args->at(i));
   }
 
   // Call the construct call builtin that handles allocation and
   // constructor invocation.
   SetSourcePosition(expr->position());
 
-  // Load function and argument count into r1 and r0.
-  __ mov(r0, Operand(arg_count));
-  __ ldr(r1, MemOperand(sp, arg_count * kPointerSize));
+  // Load function and argument count into r4 and r3.
+  __ mov(r3, Operand(arg_count));
+  __ LoadP(r4, MemOperand(sp, arg_count * kPointerSize), r0);
 
   // Record call targets in unoptimized code.
   if (FLAG_pretenuring_call_new) {
     EnsureSlotContainsAllocationSite(expr->AllocationSiteFeedbackSlot());
     DCHECK(expr->AllocationSiteFeedbackSlot().ToInt() ==
            expr->CallNewFeedbackSlot().ToInt() + 1);
   }
 
-  __ Move(r2, FeedbackVector());
-  __ mov(r3, Operand(SmiFromSlot(expr->CallNewFeedbackSlot())));
+  __ Move(r5, FeedbackVector());
+  __ LoadSmiLiteral(r6, SmiFromSlot(expr->CallNewFeedbackSlot()));
 
   CallConstructStub stub(isolate(), RECORD_CONSTRUCTOR_TARGET);
   __ Call(stub.GetCode(), RelocInfo::CONSTRUCT_CALL);
   PrepareForBailoutForId(expr->ReturnId(), TOS_REG);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitIsSmi(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
 
   VisitForAccumulatorValue(args->at(0));
 
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  __ SmiTst(r0);
-  Split(eq, if_true, if_false, fall_through);
+  __ TestIfSmi(r3, r0);
+  Split(eq, if_true, if_false, fall_through, cr0);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitIsNonNegativeSmi(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
 
   VisitForAccumulatorValue(args->at(0));
 
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  __ NonNegativeSmiTst(r0);
-  Split(eq, if_true, if_false, fall_through);
+  __ TestIfPositiveSmi(r3, r0);
+  Split(eq, if_true, if_false, fall_through, cr0);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitIsObject(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
 
   VisitForAccumulatorValue(args->at(0));
 
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
-  __ JumpIfSmi(r0, if_false);
+  __ JumpIfSmi(r3, if_false);
   __ LoadRoot(ip, Heap::kNullValueRootIndex);
-  __ cmp(r0, ip);
-  __ b(eq, if_true);
-  __ ldr(r2, FieldMemOperand(r0, HeapObject::kMapOffset));
+  __ cmp(r3, ip);
+  __ beq(if_true);
+  __ LoadP(r5, FieldMemOperand(r3, HeapObject::kMapOffset));
   // Undetectable objects behave like undefined when tested with typeof.
-  __ ldrb(r1, FieldMemOperand(r2, Map::kBitFieldOffset));
-  __ tst(r1, Operand(1 << Map::kIsUndetectable));
-  __ b(ne, if_false);
-  __ ldrb(r1, FieldMemOperand(r2, Map::kInstanceTypeOffset));
-  __ cmp(r1, Operand(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE));
-  __ b(lt, if_false);
-  __ cmp(r1, Operand(LAST_NONCALLABLE_SPEC_OBJECT_TYPE));
+  __ lbz(r4, FieldMemOperand(r5, Map::kBitFieldOffset));
+  __ andi(r0, r4, Operand(1 << Map::kIsUndetectable));
+  __ bne(if_false, cr0);
+  __ lbz(r4, FieldMemOperand(r5, Map::kInstanceTypeOffset));
+  __ cmpi(r4, Operand(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE));
+  __ blt(if_false);
+  __ cmpi(r4, Operand(LAST_NONCALLABLE_SPEC_OBJECT_TYPE));
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
   Split(le, if_true, if_false, fall_through);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitIsSpecObject(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
 
   VisitForAccumulatorValue(args->at(0));
 
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
-  __ JumpIfSmi(r0, if_false);
-  __ CompareObjectType(r0, r1, r1, FIRST_SPEC_OBJECT_TYPE);
+  __ JumpIfSmi(r3, if_false);
+  __ CompareObjectType(r3, r4, r4, FIRST_SPEC_OBJECT_TYPE);
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
   Split(ge, if_true, if_false, fall_through);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitIsUndetectableObject(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
 
   VisitForAccumulatorValue(args->at(0));
 
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
-  __ JumpIfSmi(r0, if_false);
-  __ ldr(r1, FieldMemOperand(r0, HeapObject::kMapOffset));
-  __ ldrb(r1, FieldMemOperand(r1, Map::kBitFieldOffset));
-  __ tst(r1, Operand(1 << Map::kIsUndetectable));
+  __ JumpIfSmi(r3, if_false);
+  __ LoadP(r4, FieldMemOperand(r3, HeapObject::kMapOffset));
+  __ lbz(r4, FieldMemOperand(r4, Map::kBitFieldOffset));
+  __ andi(r0, r4, Operand(1 << Map::kIsUndetectable));
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Split(ne, if_true, if_false, fall_through);
+  Split(ne, if_true, if_false, fall_through, cr0);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitIsStringWrapperSafeForDefaultValueOf(
     CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
 
   VisitForAccumulatorValue(args->at(0));
 
   Label materialize_true, materialize_false, skip_lookup;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
-  __ AssertNotSmi(r0);
+  __ AssertNotSmi(r3);
 
-  __ ldr(r1, FieldMemOperand(r0, HeapObject::kMapOffset));
-  __ ldrb(ip, FieldMemOperand(r1, Map::kBitField2Offset));
-  __ tst(ip, Operand(1 << Map::kStringWrapperSafeForDefaultValueOf));
-  __ b(ne, &skip_lookup);
+  __ LoadP(r4, FieldMemOperand(r3, HeapObject::kMapOffset));
+  __ lbz(ip, FieldMemOperand(r4, Map::kBitField2Offset));
+  __ andi(r0, ip, Operand(1 << Map::kStringWrapperSafeForDefaultValueOf));
+  __ bne(&skip_lookup, cr0);
 
   // Check for fast case object. Generate false result for slow case object.
-  __ ldr(r2, FieldMemOperand(r0, JSObject::kPropertiesOffset));
-  __ ldr(r2, FieldMemOperand(r2, HeapObject::kMapOffset));
+  __ LoadP(r5, FieldMemOperand(r3, JSObject::kPropertiesOffset));
+  __ LoadP(r5, FieldMemOperand(r5, HeapObject::kMapOffset));
   __ LoadRoot(ip, Heap::kHashTableMapRootIndex);
-  __ cmp(r2, ip);
-  __ b(eq, if_false);
+  __ cmp(r5, ip);
+  __ beq(if_false);
 
   // Look for valueOf name in the descriptor array, and indicate false if
   // found. Since we omit an enumeration index check, if it is added via a
   // transition that shares its descriptor array, this is a false positive.
   Label entry, loop, done;
 
   // Skip loop if no descriptors are valid.
-  __ NumberOfOwnDescriptors(r3, r1);
-  __ cmp(r3, Operand::Zero());
-  __ b(eq, &done);
+  __ NumberOfOwnDescriptors(r6, r4);
+  __ cmpi(r6, Operand::Zero());
+  __ beq(&done);
 
-  __ LoadInstanceDescriptors(r1, r4);
-  // r4: descriptor array.
-  // r3: valid entries in the descriptor array.
+  __ LoadInstanceDescriptors(r4, r7);
+  // r7: descriptor array.
+  // r6: valid entries in the descriptor array.
   __ mov(ip, Operand(DescriptorArray::kDescriptorSize));
-  __ mul(r3, r3, ip);
+  __ Mul(r6, r6, ip);
   // Calculate location of the first key name.
-  __ add(r4, r4, Operand(DescriptorArray::kFirstOffset - kHeapObjectTag));
+  __ addi(r7, r7, Operand(DescriptorArray::kFirstOffset - kHeapObjectTag));
   // Calculate the end of the descriptor array.
-  __ mov(r2, r4);
-  __ add(r2, r2, Operand(r3, LSL, kPointerSizeLog2));
+  __ mr(r5, r7);
+  __ ShiftLeftImm(ip, r6, Operand(kPointerSizeLog2));
+  __ add(r5, r5, ip);
 
   // Loop through all the keys in the descriptor array. If one of these is the
   // string "valueOf" the result is false.
   // The use of ip to store the valueOf string assumes that it is not otherwise
   // used in the loop below.
   __ mov(ip, Operand(isolate()->factory()->value_of_string()));
-  __ jmp(&entry);
+  __ b(&entry);
   __ bind(&loop);
-  __ ldr(r3, MemOperand(r4, 0));
-  __ cmp(r3, ip);
-  __ b(eq, if_false);
-  __ add(r4, r4, Operand(DescriptorArray::kDescriptorSize * kPointerSize));
+  __ LoadP(r6, MemOperand(r7, 0));
+  __ cmp(r6, ip);
+  __ beq(if_false);
+  __ addi(r7, r7, Operand(DescriptorArray::kDescriptorSize * kPointerSize));
   __ bind(&entry);
-  __ cmp(r4, Operand(r2));
-  __ b(ne, &loop);
+  __ cmp(r7, r5);
+  __ bne(&loop);
 
   __ bind(&done);
 
   // Set the bit in the map to indicate that there is no local valueOf field.
-  __ ldrb(r2, FieldMemOperand(r1, Map::kBitField2Offset));
-  __ orr(r2, r2, Operand(1 << Map::kStringWrapperSafeForDefaultValueOf));
-  __ strb(r2, FieldMemOperand(r1, Map::kBitField2Offset));
+  __ lbz(r5, FieldMemOperand(r4, Map::kBitField2Offset));
+  __ ori(r5, r5, Operand(1 << Map::kStringWrapperSafeForDefaultValueOf));
+  __ stb(r5, FieldMemOperand(r4, Map::kBitField2Offset));
 
   __ bind(&skip_lookup);
 
   // If a valueOf property is not found on the object check that its
   // prototype is the un-modified String prototype. If not result is false.
-  __ ldr(r2, FieldMemOperand(r1, Map::kPrototypeOffset));
-  __ JumpIfSmi(r2, if_false);
-  __ ldr(r2, FieldMemOperand(r2, HeapObject::kMapOffset));
-  __ ldr(r3, ContextOperand(cp, Context::GLOBAL_OBJECT_INDEX));
-  __ ldr(r3, FieldMemOperand(r3, GlobalObject::kNativeContextOffset));
-  __ ldr(r3, ContextOperand(r3, Context::STRING_FUNCTION_PROTOTYPE_MAP_INDEX));
-  __ cmp(r2, r3);
+  __ LoadP(r5, FieldMemOperand(r4, Map::kPrototypeOffset));
+  __ JumpIfSmi(r5, if_false);
+  __ LoadP(r5, FieldMemOperand(r5, HeapObject::kMapOffset));
+  __ LoadP(r6, ContextOperand(cp, Context::GLOBAL_OBJECT_INDEX));
+  __ LoadP(r6, FieldMemOperand(r6, GlobalObject::kNativeContextOffset));
+  __ LoadP(r6,
+           ContextOperand(r6, Context::STRING_FUNCTION_PROTOTYPE_MAP_INDEX));
+  __ cmp(r5, r6);
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
   Split(eq, if_true, if_false, fall_through);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitIsFunction(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
 
   VisitForAccumulatorValue(args->at(0));
 
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
-  __ JumpIfSmi(r0, if_false);
-  __ CompareObjectType(r0, r1, r2, JS_FUNCTION_TYPE);
+  __ JumpIfSmi(r3, if_false);
+  __ CompareObjectType(r3, r4, r5, JS_FUNCTION_TYPE);
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
   Split(eq, if_true, if_false, fall_through);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitIsMinusZero(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
 
   VisitForAccumulatorValue(args->at(0));
 
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
-  __ CheckMap(r0, r1, Heap::kHeapNumberMapRootIndex, if_false, DO_SMI_CHECK);
-  __ ldr(r2, FieldMemOperand(r0, HeapNumber::kExponentOffset));
-  __ ldr(r1, FieldMemOperand(r0, HeapNumber::kMantissaOffset));
-  __ cmp(r2, Operand(0x80000000));
-  __ cmp(r1, Operand(0x00000000), eq);
+  __ CheckMap(r3, r4, Heap::kHeapNumberMapRootIndex, if_false, DO_SMI_CHECK);
+#if V8_TARGET_ARCH_PPC64
+  __ LoadP(r4, FieldMemOperand(r3, HeapNumber::kValueOffset));
+  __ li(r5, Operand(1));
+  __ rotrdi(r5, r5, 1);  // r5 = 0x80000000_00000000
+  __ cmp(r4, r5);
+#else
+  __ lwz(r5, FieldMemOperand(r3, HeapNumber::kExponentOffset));
+  __ lwz(r4, FieldMemOperand(r3, HeapNumber::kMantissaOffset));
+  Label skip;
+  __ lis(r0, Operand(SIGN_EXT_IMM16(0x8000)));
+  __ cmp(r5, r0);
+  __ bne(&skip);
+  __ cmpi(r4, Operand::Zero());
+  __ bind(&skip);
+#endif
 
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
   Split(eq, if_true, if_false, fall_through);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitIsArray(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
 
   VisitForAccumulatorValue(args->at(0));
 
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
-  __ JumpIfSmi(r0, if_false);
-  __ CompareObjectType(r0, r1, r1, JS_ARRAY_TYPE);
+  __ JumpIfSmi(r3, if_false);
+  __ CompareObjectType(r3, r4, r4, JS_ARRAY_TYPE);
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
   Split(eq, if_true, if_false, fall_through);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitIsRegExp(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
 
   VisitForAccumulatorValue(args->at(0));
 
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
-  __ JumpIfSmi(r0, if_false);
-  __ CompareObjectType(r0, r1, r1, JS_REGEXP_TYPE);
+  __ JumpIfSmi(r3, if_false);
+  __ CompareObjectType(r3, r4, r4, JS_REGEXP_TYPE);
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
   Split(eq, if_true, if_false, fall_through);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitIsJSProxy(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
 
   VisitForAccumulatorValue(args->at(0));
 
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
   context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
                          &if_false, &fall_through);
 
-  __ JumpIfSmi(r0, if_false);
-  Register map = r1;
-  Register type_reg = r2;
-  __ ldr(map, FieldMemOperand(r0, HeapObject::kMapOffset));
-  __ ldrb(type_reg, FieldMemOperand(map, Map::kInstanceTypeOffset));
-  __ sub(type_reg, type_reg, Operand(FIRST_JS_PROXY_TYPE));
-  __ cmp(type_reg, Operand(LAST_JS_PROXY_TYPE - FIRST_JS_PROXY_TYPE));
+  __ JumpIfSmi(r3, if_false);
+  Register map = r4;
+  Register type_reg = r5;
+  __ LoadP(map, FieldMemOperand(r3, HeapObject::kMapOffset));
+  __ lbz(type_reg, FieldMemOperand(map, Map::kInstanceTypeOffset));
+  __ subi(type_reg, type_reg, Operand(FIRST_JS_PROXY_TYPE));
+  __ cmpli(type_reg, Operand(LAST_JS_PROXY_TYPE - FIRST_JS_PROXY_TYPE));
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-  Split(ls, if_true, if_false, fall_through);
+  Split(le, if_true, if_false, fall_through);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitIsConstructCall(CallRuntime* expr) {
   DCHECK(expr->arguments()->length() == 0);
 
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
   // Get the frame pointer for the calling frame.
-  __ ldr(r2, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
+  __ LoadP(r5, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
 
   // Skip the arguments adaptor frame if it exists.
-  __ ldr(r1, MemOperand(r2, StandardFrameConstants::kContextOffset));
-  __ cmp(r1, Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
-  __ ldr(r2, MemOperand(r2, StandardFrameConstants::kCallerFPOffset), eq);
+  Label check_frame_marker;
+  __ LoadP(r4, MemOperand(r5, StandardFrameConstants::kContextOffset));
+  __ CmpSmiLiteral(r4, Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR), r0);
+  __ bne(&check_frame_marker);
+  __ LoadP(r5, MemOperand(r5, StandardFrameConstants::kCallerFPOffset));
 
   // Check the marker in the calling frame.
-  __ ldr(r1, MemOperand(r2, StandardFrameConstants::kMarkerOffset));
-  __ cmp(r1, Operand(Smi::FromInt(StackFrame::CONSTRUCT)));
+  __ bind(&check_frame_marker);
+  __ LoadP(r4, MemOperand(r5, StandardFrameConstants::kMarkerOffset));
+  STATIC_ASSERT(StackFrame::CONSTRUCT < 0x4000);
+  __ CmpSmiLiteral(r4, Smi::FromInt(StackFrame::CONSTRUCT), r0);
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
   Split(eq, if_true, if_false, fall_through);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitObjectEquals(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 2);
 
   // Load the two objects into registers and perform the comparison.
   VisitForStackValue(args->at(0));
   VisitForAccumulatorValue(args->at(1));
 
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
-  __ pop(r1);
-  __ cmp(r0, r1);
+  __ pop(r4);
+  __ cmp(r3, r4);
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
   Split(eq, if_true, if_false, fall_through);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitArguments(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
 
   // ArgumentsAccessStub expects the key in edx and the formal
-  // parameter count in r0.
+  // parameter count in r3.
   VisitForAccumulatorValue(args->at(0));
-  __ mov(r1, r0);
-  __ mov(r0, Operand(Smi::FromInt(info_->scope()->num_parameters())));
+  __ mr(r4, r3);
+  __ LoadSmiLiteral(r3, Smi::FromInt(info_->scope()->num_parameters()));
   ArgumentsAccessStub stub(isolate(), ArgumentsAccessStub::READ_ELEMENT);
   __ CallStub(&stub);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitArgumentsLength(CallRuntime* expr) {
   DCHECK(expr->arguments()->length() == 0);
-
+  Label exit;
   // Get the number of formal parameters.
-  __ mov(r0, Operand(Smi::FromInt(info_->scope()->num_parameters())));
+  __ LoadSmiLiteral(r3, Smi::FromInt(info_->scope()->num_parameters()));
 
   // Check if the calling frame is an arguments adaptor frame.
-  __ ldr(r2, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
-  __ ldr(r3, MemOperand(r2, StandardFrameConstants::kContextOffset));
-  __ cmp(r3, Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
+  __ LoadP(r5, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
+  __ LoadP(r6, MemOperand(r5, StandardFrameConstants::kContextOffset));
+  __ CmpSmiLiteral(r6, Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR), r0);
+  __ bne(&exit);
 
   // Arguments adaptor case: Read the arguments length from the
   // adaptor frame.
-  __ ldr(r0, MemOperand(r2, ArgumentsAdaptorFrameConstants::kLengthOffset), eq);
+  __ LoadP(r3, MemOperand(r5, ArgumentsAdaptorFrameConstants::kLengthOffset));
 
-  context()->Plug(r0);
+  __ bind(&exit);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitClassOf(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
   Label done, null, function, non_function_constructor;
 
   VisitForAccumulatorValue(args->at(0));
 
   // If the object is a smi, we return null.
-  __ JumpIfSmi(r0, &null);
+  __ JumpIfSmi(r3, &null);
 
   // Check that the object is a JS object but take special care of JS
   // functions to make sure they have 'Function' as their class.
   // Assume that there are only two callable types, and one of them is at
   // either end of the type range for JS object types. Saves extra comparisons.
   STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2);
-  __ CompareObjectType(r0, r0, r1, FIRST_SPEC_OBJECT_TYPE);
-  // Map is now in r0.
-  __ b(lt, &null);
+  __ CompareObjectType(r3, r3, r4, FIRST_SPEC_OBJECT_TYPE);
+  // Map is now in r3.
+  __ blt(&null);
   STATIC_ASSERT(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE ==
                 FIRST_SPEC_OBJECT_TYPE + 1);
-  __ b(eq, &function);
+  __ beq(&function);
 
-  __ cmp(r1, Operand(LAST_SPEC_OBJECT_TYPE));
-  STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE ==
-                LAST_SPEC_OBJECT_TYPE - 1);
-  __ b(eq, &function);
+  __ cmpi(r4, Operand(LAST_SPEC_OBJECT_TYPE));
+  STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE == LAST_SPEC_OBJECT_TYPE - 1);
+  __ beq(&function);
   // Assume that there is no larger type.
   STATIC_ASSERT(LAST_NONCALLABLE_SPEC_OBJECT_TYPE == LAST_TYPE - 1);
 
   // Check if the constructor in the map is a JS function.
-  __ ldr(r0, FieldMemOperand(r0, Map::kConstructorOffset));
-  __ CompareObjectType(r0, r1, r1, JS_FUNCTION_TYPE);
-  __ b(ne, &non_function_constructor);
+  __ LoadP(r3, FieldMemOperand(r3, Map::kConstructorOffset));
+  __ CompareObjectType(r3, r4, r4, JS_FUNCTION_TYPE);
+  __ bne(&non_function_constructor);
 
-  // r0 now contains the constructor function. Grab the
+  // r3 now contains the constructor function. Grab the
   // instance class name from there.
-  __ ldr(r0, FieldMemOperand(r0, JSFunction::kSharedFunctionInfoOffset));
-  __ ldr(r0, FieldMemOperand(r0, SharedFunctionInfo::kInstanceClassNameOffset));
+  __ LoadP(r3, FieldMemOperand(r3, JSFunction::kSharedFunctionInfoOffset));
+  __ LoadP(r3,
+           FieldMemOperand(r3, SharedFunctionInfo::kInstanceClassNameOffset));
   __ b(&done);
 
   // Functions have class 'Function'.
   __ bind(&function);
-  __ LoadRoot(r0, Heap::kFunction_stringRootIndex);
-  __ jmp(&done);
+  __ LoadRoot(r3, Heap::kFunction_stringRootIndex);
+  __ b(&done);
 
   // Objects with a non-function constructor have class 'Object'.
   __ bind(&non_function_constructor);
-  __ LoadRoot(r0, Heap::kObject_stringRootIndex);
-  __ jmp(&done);
+  __ LoadRoot(r3, Heap::kObject_stringRootIndex);
+  __ b(&done);
 
   // Non-JS objects have class null.
   __ bind(&null);
-  __ LoadRoot(r0, Heap::kNullValueRootIndex);
+  __ LoadRoot(r3, Heap::kNullValueRootIndex);
 
   // All done.
   __ bind(&done);
 
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitSubString(CallRuntime* expr) {
   // Load the arguments on the stack and call the stub.
   SubStringStub stub(isolate());
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 3);
   VisitForStackValue(args->at(0));
   VisitForStackValue(args->at(1));
   VisitForStackValue(args->at(2));
   __ CallStub(&stub);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitRegExpExec(CallRuntime* expr) {
   // Load the arguments on the stack and call the stub.
   RegExpExecStub stub(isolate());
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 4);
   VisitForStackValue(args->at(0));
   VisitForStackValue(args->at(1));
   VisitForStackValue(args->at(2));
   VisitForStackValue(args->at(3));
   __ CallStub(&stub);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitValueOf(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
   VisitForAccumulatorValue(args->at(0));  // Load the object.
 
   Label done;
   // If the object is a smi return the object.
-  __ JumpIfSmi(r0, &done);
+  __ JumpIfSmi(r3, &done);
   // If the object is not a value type, return the object.
-  __ CompareObjectType(r0, r1, r1, JS_VALUE_TYPE);
-  __ ldr(r0, FieldMemOperand(r0, JSValue::kValueOffset), eq);
+  __ CompareObjectType(r3, r4, r4, JS_VALUE_TYPE);
+  __ bne(&done);
+  __ LoadP(r3, FieldMemOperand(r3, JSValue::kValueOffset));
 
   __ bind(&done);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitDateField(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 2);
   DCHECK_NE(NULL, args->at(1)->AsLiteral());
   Smi* index = Smi::cast(*(args->at(1)->AsLiteral()->value()));
 
   VisitForAccumulatorValue(args->at(0));  // Load the object.
 
   Label runtime, done, not_date_object;
-  Register object = r0;
-  Register result = r0;
-  Register scratch0 = r9;
-  Register scratch1 = r1;
+  Register object = r3;
+  Register result = r3;
+  Register scratch0 = r11;
+  Register scratch1 = r4;
 
   __ JumpIfSmi(object, &not_date_object);
   __ CompareObjectType(object, scratch1, scratch1, JS_DATE_TYPE);
-  __ b(ne, &not_date_object);
+  __ bne(&not_date_object);
 
   if (index->value() == 0) {
-    __ ldr(result, FieldMemOperand(object, JSDate::kValueOffset));
-    __ jmp(&done);
+    __ LoadP(result, FieldMemOperand(object, JSDate::kValueOffset));
+    __ b(&done);
   } else {
     if (index->value() < JSDate::kFirstUncachedField) {
       ExternalReference stamp = ExternalReference::date_cache_stamp(isolate());
       __ mov(scratch1, Operand(stamp));
-      __ ldr(scratch1, MemOperand(scratch1));
-      __ ldr(scratch0, FieldMemOperand(object, JSDate::kCacheStampOffset));
+      __ LoadP(scratch1, MemOperand(scratch1));
+      __ LoadP(scratch0, FieldMemOperand(object, JSDate::kCacheStampOffset));
       __ cmp(scratch1, scratch0);
-      __ b(ne, &runtime);
-      __ ldr(result, FieldMemOperand(object, JSDate::kValueOffset +
-                                             kPointerSize * index->value()));
-      __ jmp(&done);
+      __ bne(&runtime);
+      __ LoadP(result,
+               FieldMemOperand(object, JSDate::kValueOffset +
+                                           kPointerSize * index->value()),
+               scratch0);
+      __ b(&done);
     }
     __ bind(&runtime);
     __ PrepareCallCFunction(2, scratch1);
-    __ mov(r1, Operand(index));
+    __ LoadSmiLiteral(r4, index);
     __ CallCFunction(ExternalReference::get_date_field_function(isolate()), 2);
-    __ jmp(&done);
+    __ b(&done);
   }
 
   __ bind(&not_date_object);
   __ CallRuntime(Runtime::kThrowNotDateError, 0);
   __ bind(&done);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitOneByteSeqStringSetChar(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK_EQ(3, args->length());
 
-  Register string = r0;
-  Register index = r1;
-  Register value = r2;
+  Register string = r3;
+  Register index = r4;
+  Register value = r5;
 
   VisitForStackValue(args->at(0));        // index
   VisitForStackValue(args->at(1));        // value
   VisitForAccumulatorValue(args->at(2));  // string
   __ Pop(index, value);
 
   if (FLAG_debug_code) {
-    __ SmiTst(value);
-    __ Check(eq, kNonSmiValue);
-    __ SmiTst(index);
-    __ Check(eq, kNonSmiIndex);
+    __ TestIfSmi(value, r0);
+    __ Check(eq, kNonSmiValue, cr0);
+    __ TestIfSmi(index, r0);
+    __ Check(eq, kNonSmiIndex, cr0);
     __ SmiUntag(index, index);
     static const uint32_t one_byte_seq_type = kSeqStringTag | kOneByteStringTag;
     __ EmitSeqStringSetCharCheck(string, index, value, one_byte_seq_type);
     __ SmiTag(index, index);
   }
 
-  __ SmiUntag(value, value);
-  __ add(ip,
-         string,
-         Operand(SeqOneByteString::kHeaderSize - kHeapObjectTag));
-  __ strb(value, MemOperand(ip, index, LSR, kSmiTagSize));
+  __ SmiUntag(value);
+  __ addi(ip, string, Operand(SeqOneByteString::kHeaderSize - kHeapObjectTag));
+  __ SmiToByteArrayOffset(r0, index);
+  __ stbx(value, MemOperand(ip, r0));
   context()->Plug(string);
 }
 
 
 void FullCodeGenerator::EmitTwoByteSeqStringSetChar(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK_EQ(3, args->length());
 
-  Register string = r0;
-  Register index = r1;
-  Register value = r2;
+  Register string = r3;
+  Register index = r4;
+  Register value = r5;
 
   VisitForStackValue(args->at(0));        // index
   VisitForStackValue(args->at(1));        // value
   VisitForAccumulatorValue(args->at(2));  // string
   __ Pop(index, value);
 
   if (FLAG_debug_code) {
-    __ SmiTst(value);
-    __ Check(eq, kNonSmiValue);
-    __ SmiTst(index);
-    __ Check(eq, kNonSmiIndex);
+    __ TestIfSmi(value, r0);
+    __ Check(eq, kNonSmiValue, cr0);
+    __ TestIfSmi(index, r0);
+    __ Check(eq, kNonSmiIndex, cr0);
     __ SmiUntag(index, index);
     static const uint32_t two_byte_seq_type = kSeqStringTag | kTwoByteStringTag;
     __ EmitSeqStringSetCharCheck(string, index, value, two_byte_seq_type);
     __ SmiTag(index, index);
   }
 
-  __ SmiUntag(value, value);
-  __ add(ip,
-         string,
-         Operand(SeqTwoByteString::kHeaderSize - kHeapObjectTag));
-  STATIC_ASSERT(kSmiTagSize == 1 && kSmiTag == 0);
-  __ strh(value, MemOperand(ip, index));
+  __ SmiUntag(value);
+  __ addi(ip, string, Operand(SeqTwoByteString::kHeaderSize - kHeapObjectTag));
+  __ SmiToShortArrayOffset(r0, index);
+  __ sthx(value, MemOperand(ip, r0));
   context()->Plug(string);
 }
 
 
-
 void FullCodeGenerator::EmitMathPow(CallRuntime* expr) {
   // Load the arguments on the stack and call the runtime function.
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 2);
   VisitForStackValue(args->at(0));
   VisitForStackValue(args->at(1));
   MathPowStub stub(isolate(), MathPowStub::ON_STACK);
   __ CallStub(&stub);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitSetValueOf(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 2);
-  VisitForStackValue(args->at(0));  // Load the object.
+  VisitForStackValue(args->at(0));        // Load the object.
   VisitForAccumulatorValue(args->at(1));  // Load the value.
-  __ pop(r1);  // r0 = value. r1 = object.
+  __ pop(r4);                             // r3 = value. r4 = object.
 
   Label done;
   // If the object is a smi, return the value.
-  __ JumpIfSmi(r1, &done);
+  __ JumpIfSmi(r4, &done);
 
   // If the object is not a value type, return the value.
-  __ CompareObjectType(r1, r2, r2, JS_VALUE_TYPE);
-  __ b(ne, &done);
+  __ CompareObjectType(r4, r5, r5, JS_VALUE_TYPE);
+  __ bne(&done);
 
   // Store the value.
-  __ str(r0, FieldMemOperand(r1, JSValue::kValueOffset));
+  __ StoreP(r3, FieldMemOperand(r4, JSValue::kValueOffset), r0);
   // Update the write barrier.  Save the value as it will be
   // overwritten by the write barrier code and is needed afterward.
-  __ mov(r2, r0);
-  __ RecordWriteField(
-      r1, JSValue::kValueOffset, r2, r3, kLRHasBeenSaved, kDontSaveFPRegs);
+  __ mr(r5, r3);
+  __ RecordWriteField(r4, JSValue::kValueOffset, r5, r6, kLRHasBeenSaved,
+                      kDontSaveFPRegs);
 
   __ bind(&done);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitNumberToString(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK_EQ(args->length(), 1);
-  // Load the argument into r0 and call the stub.
+  // Load the argument into r3 and call the stub.
   VisitForAccumulatorValue(args->at(0));
 
   NumberToStringStub stub(isolate());
   __ CallStub(&stub);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitStringCharFromCode(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
   VisitForAccumulatorValue(args->at(0));
 
   Label done;
-  StringCharFromCodeGenerator generator(r0, r1);
+  StringCharFromCodeGenerator generator(r3, r4);
   generator.GenerateFast(masm_);
-  __ jmp(&done);
+  __ b(&done);
 
   NopRuntimeCallHelper call_helper;
   generator.GenerateSlow(masm_, call_helper);
 
   __ bind(&done);
-  context()->Plug(r1);
+  context()->Plug(r4);
 }
 
 
 void FullCodeGenerator::EmitStringCharCodeAt(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 2);
   VisitForStackValue(args->at(0));
   VisitForAccumulatorValue(args->at(1));
 
-  Register object = r1;
-  Register index = r0;
-  Register result = r3;
+  Register object = r4;
+  Register index = r3;
+  Register result = r6;
 
   __ pop(object);
 
   Label need_conversion;
   Label index_out_of_range;
   Label done;
-  StringCharCodeAtGenerator generator(object,
-                                      index,
-                                      result,
-                                      &need_conversion,
-                                      &need_conversion,
-                                      &index_out_of_range,
+  StringCharCodeAtGenerator generator(object, index, result, &need_conversion,
+                                      &need_conversion, &index_out_of_range,
                                       STRING_INDEX_IS_NUMBER);
   generator.GenerateFast(masm_);
-  __ jmp(&done);
+  __ b(&done);
 
   __ bind(&index_out_of_range);
   // When the index is out of range, the spec requires us to return
   // NaN.
   __ LoadRoot(result, Heap::kNanValueRootIndex);
-  __ jmp(&done);
+  __ b(&done);
 
   __ bind(&need_conversion);
   // Load the undefined value into the result register, which will
   // trigger conversion.
   __ LoadRoot(result, Heap::kUndefinedValueRootIndex);
-  __ jmp(&done);
+  __ b(&done);
 
   NopRuntimeCallHelper call_helper;
   generator.GenerateSlow(masm_, call_helper);
 
   __ bind(&done);
   context()->Plug(result);
 }
 
 
 void FullCodeGenerator::EmitStringCharAt(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 2);
   VisitForStackValue(args->at(0));
   VisitForAccumulatorValue(args->at(1));
 
-  Register object = r1;
-  Register index = r0;
-  Register scratch = r3;
-  Register result = r0;
+  Register object = r4;
+  Register index = r3;
+  Register scratch = r6;
+  Register result = r3;
 
   __ pop(object);
 
   Label need_conversion;
   Label index_out_of_range;
   Label done;
-  StringCharAtGenerator generator(object,
-                                  index,
-                                  scratch,
-                                  result,
-                                  &need_conversion,
-                                  &need_conversion,
-                                  &index_out_of_range,
-                                  STRING_INDEX_IS_NUMBER);
+  StringCharAtGenerator generator(object, index, scratch, result,
+                                  &need_conversion, &need_conversion,
+                                  &index_out_of_range, STRING_INDEX_IS_NUMBER);
   generator.GenerateFast(masm_);
-  __ jmp(&done);
+  __ b(&done);
 
   __ bind(&index_out_of_range);
   // When the index is out of range, the spec requires us to return
   // the empty string.
   __ LoadRoot(result, Heap::kempty_stringRootIndex);
-  __ jmp(&done);
+  __ b(&done);
 
   __ bind(&need_conversion);
   // Move smi zero into the result register, which will trigger
   // conversion.
-  __ mov(result, Operand(Smi::FromInt(0)));
-  __ jmp(&done);
+  __ LoadSmiLiteral(result, Smi::FromInt(0));
+  __ b(&done);
 
   NopRuntimeCallHelper call_helper;
   generator.GenerateSlow(masm_, call_helper);
 
   __ bind(&done);
   context()->Plug(result);
 }
 
 
 void FullCodeGenerator::EmitStringAdd(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK_EQ(2, args->length());
   VisitForStackValue(args->at(0));
   VisitForAccumulatorValue(args->at(1));
 
-  __ pop(r1);
+  __ pop(r4);
   StringAddStub stub(isolate(), STRING_ADD_CHECK_BOTH, NOT_TENURED);
   __ CallStub(&stub);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitStringCompare(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK_EQ(2, args->length());
   VisitForStackValue(args->at(0));
   VisitForStackValue(args->at(1));
 
   StringCompareStub stub(isolate());
   __ CallStub(&stub);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitCallFunction(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() >= 2);
 
   int arg_count = args->length() - 2;  // 2 ~ receiver and function.
   for (int i = 0; i < arg_count + 1; i++) {
     VisitForStackValue(args->at(i));
   }
   VisitForAccumulatorValue(args->last());  // Function.
 
   Label runtime, done;
   // Check for non-function argument (including proxy).
-  __ JumpIfSmi(r0, &runtime);
-  __ CompareObjectType(r0, r1, r1, JS_FUNCTION_TYPE);
-  __ b(ne, &runtime);
+  __ JumpIfSmi(r3, &runtime);
+  __ CompareObjectType(r3, r4, r4, JS_FUNCTION_TYPE);
+  __ bne(&runtime);
 
-  // InvokeFunction requires the function in r1. Move it in there.
-  __ mov(r1, result_register());
+  // InvokeFunction requires the function in r4. Move it in there.
+  __ mr(r4, result_register());
   ParameterCount count(arg_count);
-  __ InvokeFunction(r1, count, CALL_FUNCTION, NullCallWrapper());
-  __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
-  __ jmp(&done);
+  __ InvokeFunction(r4, count, CALL_FUNCTION, NullCallWrapper());
+  __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
+  __ b(&done);
 
   __ bind(&runtime);
-  __ push(r0);
+  __ push(r3);
   __ CallRuntime(Runtime::kCall, args->length());
   __ bind(&done);
 
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitRegExpConstructResult(CallRuntime* expr) {
   RegExpConstructResultStub stub(isolate());
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 3);
   VisitForStackValue(args->at(0));
   VisitForStackValue(args->at(1));
   VisitForAccumulatorValue(args->at(2));
-  __ pop(r1);
-  __ pop(r2);
+  __ Pop(r5, r4);
   __ CallStub(&stub);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitGetFromCache(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK_EQ(2, args->length());
   DCHECK_NE(NULL, args->at(0)->AsLiteral());
   int cache_id = Smi::cast(*(args->at(0)->AsLiteral()->value()))->value();
 
   Handle<FixedArray> jsfunction_result_caches(
       isolate()->native_context()->jsfunction_result_caches());
   if (jsfunction_result_caches->length() <= cache_id) {
     __ Abort(kAttemptToUseUndefinedCache);
-    __ LoadRoot(r0, Heap::kUndefinedValueRootIndex);
-    context()->Plug(r0);
+    __ LoadRoot(r3, Heap::kUndefinedValueRootIndex);
+    context()->Plug(r3);
     return;
   }
 
   VisitForAccumulatorValue(args->at(1));
 
-  Register key = r0;
-  Register cache = r1;
-  __ ldr(cache, ContextOperand(cp, Context::GLOBAL_OBJECT_INDEX));
-  __ ldr(cache, FieldMemOperand(cache, GlobalObject::kNativeContextOffset));
-  __ ldr(cache, ContextOperand(cache, Context::JSFUNCTION_RESULT_CACHES_INDEX));
-  __ ldr(cache,
-         FieldMemOperand(cache, FixedArray::OffsetOfElementAt(cache_id)));
-
+  Register key = r3;
+  Register cache = r4;
+  __ LoadP(cache, ContextOperand(cp, Context::GLOBAL_OBJECT_INDEX));
+  __ LoadP(cache, FieldMemOperand(cache, GlobalObject::kNativeContextOffset));
+  __ LoadP(cache,
+           ContextOperand(cache, Context::JSFUNCTION_RESULT_CACHES_INDEX));
+  __ LoadP(cache,
+           FieldMemOperand(cache, FixedArray::OffsetOfElementAt(cache_id)), r0);
 
   Label done, not_found;
-  __ ldr(r2, FieldMemOperand(cache, JSFunctionResultCache::kFingerOffset));
-  // r2 now holds finger offset as a smi.
-  __ add(r3, cache, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-  // r3 now points to the start of fixed array elements.
-  __ ldr(r2, MemOperand::PointerAddressFromSmiKey(r3, r2, PreIndex));
-  // Note side effect of PreIndex: r3 now points to the key of the pair.
-  __ cmp(key, r2);
-  __ b(ne, &not_found);
+  __ LoadP(r5, FieldMemOperand(cache, JSFunctionResultCache::kFingerOffset));
+  // r5 now holds finger offset as a smi.
+  __ addi(r6, cache, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
+  // r6 now points to the start of fixed array elements.
+  __ SmiToPtrArrayOffset(r5, r5);
+  __ LoadPUX(r5, MemOperand(r6, r5));
+  // r6 now points to the key of the pair.
+  __ cmp(key, r5);
+  __ bne(&not_found);
 
-  __ ldr(r0, MemOperand(r3, kPointerSize));
+  __ LoadP(r3, MemOperand(r6, kPointerSize));
   __ b(&done);
 
   __ bind(&not_found);
   // Call runtime to perform the lookup.
   __ Push(cache, key);
   __ CallRuntime(Runtime::kGetFromCache, 2);
 
   __ bind(&done);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitHasCachedArrayIndex(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   VisitForAccumulatorValue(args->at(0));
 
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
-  __ ldr(r0, FieldMemOperand(r0, String::kHashFieldOffset));
-  __ tst(r0, Operand(String::kContainsCachedArrayIndexMask));
+  __ lwz(r3, FieldMemOperand(r3, String::kHashFieldOffset));
+  // PPC - assume ip is free
+  __ mov(ip, Operand(String::kContainsCachedArrayIndexMask));
+  __ and_(r0, r3, ip);
+  __ cmpi(r0, Operand::Zero());
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
   Split(eq, if_true, if_false, fall_through);
 
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitGetCachedArrayIndex(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);
   VisitForAccumulatorValue(args->at(0));
 
-  __ AssertString(r0);
+  __ AssertString(r3);
 
-  __ ldr(r0, FieldMemOperand(r0, String::kHashFieldOffset));
-  __ IndexFromHash(r0, r0);
+  __ lwz(r3, FieldMemOperand(r3, String::kHashFieldOffset));
+  __ IndexFromHash(r3, r3);
 
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitFastOneByteArrayJoin(CallRuntime* expr) {
   Label bailout, done, one_char_separator, long_separator, non_trivial_array,
       not_size_one_array, loop, empty_separator_loop, one_char_separator_loop,
       one_char_separator_loop_entry, long_separator_loop;
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 2);
   VisitForStackValue(args->at(1));
   VisitForAccumulatorValue(args->at(0));
 
   // All aliases of the same register have disjoint lifetimes.
-  Register array = r0;
-  Register elements = no_reg;  // Will be r0.
-  Register result = no_reg;  // Will be r0.
-  Register separator = r1;
-  Register array_length = r2;
-  Register result_pos = no_reg;  // Will be r2
-  Register string_length = r3;
-  Register string = r4;
-  Register element = r5;
-  Register elements_end = r6;
-  Register scratch = r9;
+  Register array = r3;
+  Register elements = no_reg;  // Will be r3.
+  Register result = no_reg;    // Will be r3.
+  Register separator = r4;
+  Register array_length = r5;
+  Register result_pos = no_reg;  // Will be r5
+  Register string_length = r6;
+  Register string = r7;
+  Register element = r8;
+  Register elements_end = r9;
+  Register scratch1 = r10;
+  Register scratch2 = r11;
 
   // Separator operand is on the stack.
   __ pop(separator);
 
   // Check that the array is a JSArray.
   __ JumpIfSmi(array, &bailout);
-  __ CompareObjectType(array, scratch, array_length, JS_ARRAY_TYPE);
-  __ b(ne, &bailout);
+  __ CompareObjectType(array, scratch1, scratch2, JS_ARRAY_TYPE);
+  __ bne(&bailout);
 
   // Check that the array has fast elements.
-  __ CheckFastElements(scratch, array_length, &bailout);
+  __ CheckFastElements(scratch1, scratch2, &bailout);
 
   // If the array has length zero, return the empty string.
-  __ ldr(array_length, FieldMemOperand(array, JSArray::kLengthOffset));
-  __ SmiUntag(array_length, SetCC);
-  __ b(ne, &non_trivial_array);
-  __ LoadRoot(r0, Heap::kempty_stringRootIndex);
+  __ LoadP(array_length, FieldMemOperand(array, JSArray::kLengthOffset));
+  __ SmiUntag(array_length);
+  __ cmpi(array_length, Operand::Zero());
+  __ bne(&non_trivial_array);
+  __ LoadRoot(r3, Heap::kempty_stringRootIndex);
   __ b(&done);
 
   __ bind(&non_trivial_array);
 
   // Get the FixedArray containing array's elements.
   elements = array;
-  __ ldr(elements, FieldMemOperand(array, JSArray::kElementsOffset));
+  __ LoadP(elements, FieldMemOperand(array, JSArray::kElementsOffset));
   array = no_reg;  // End of array's live range.
 
   // Check that all array elements are sequential one-byte strings, and
   // accumulate the sum of their lengths, as a smi-encoded value.
-  __ mov(string_length, Operand::Zero());
-  __ add(element,
-         elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-  __ add(elements_end, element, Operand(array_length, LSL, kPointerSizeLog2));
+  __ li(string_length, Operand::Zero());
+  __ addi(element, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
+  __ ShiftLeftImm(elements_end, array_length, Operand(kPointerSizeLog2));
+  __ add(elements_end, element, elements_end);
   // Loop condition: while (element < elements_end).
   // Live values in registers:
   //   elements: Fixed array of strings.
   //   array_length: Length of the fixed array of strings (not smi)
   //   separator: Separator string
   //   string_length: Accumulated sum of string lengths (smi).
   //   element: Current array element.
   //   elements_end: Array end.
   if (generate_debug_code_) {
-    __ cmp(array_length, Operand::Zero());
+    __ cmpi(array_length, Operand::Zero());
     __ Assert(gt, kNoEmptyArraysHereInEmitFastOneByteArrayJoin);
   }
   __ bind(&loop);
-  __ ldr(string, MemOperand(element, kPointerSize, PostIndex));
+  __ LoadP(string, MemOperand(element));
+  __ addi(element, element, Operand(kPointerSize));
   __ JumpIfSmi(string, &bailout);
-  __ ldr(scratch, FieldMemOperand(string, HeapObject::kMapOffset));
-  __ ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset));
-  __ JumpIfInstanceTypeIsNotSequentialOneByte(scratch, scratch, &bailout);
-  __ ldr(scratch, FieldMemOperand(string, SeqOneByteString::kLengthOffset));
-  __ add(string_length, string_length, Operand(scratch), SetCC);
-  __ b(vs, &bailout);
+  __ LoadP(scratch1, FieldMemOperand(string, HeapObject::kMapOffset));
+  __ lbz(scratch1, FieldMemOperand(scratch1, Map::kInstanceTypeOffset));
+  __ JumpIfInstanceTypeIsNotSequentialOneByte(scratch1, scratch2, &bailout);
+  __ LoadP(scratch1, FieldMemOperand(string, SeqOneByteString::kLengthOffset));
+
+  __ AddAndCheckForOverflow(string_length, string_length, scratch1, scratch2,
+                            r0);
+  __ BranchOnOverflow(&bailout);
+
   __ cmp(element, elements_end);
-  __ b(lt, &loop);
+  __ blt(&loop);
 
   // If array_length is 1, return elements[0], a string.
-  __ cmp(array_length, Operand(1));
-  __ b(ne, &not_size_one_array);
-  __ ldr(r0, FieldMemOperand(elements, FixedArray::kHeaderSize));
+  __ cmpi(array_length, Operand(1));
+  __ bne(&not_size_one_array);
+  __ LoadP(r3, FieldMemOperand(elements, FixedArray::kHeaderSize));
   __ b(&done);
 
   __ bind(&not_size_one_array);
 
   // Live values in registers:
   //   separator: Separator string
   //   array_length: Length of the array.
   //   string_length: Sum of string lengths (smi).
   //   elements: FixedArray of strings.
 
   // Check that the separator is a flat one-byte string.
   __ JumpIfSmi(separator, &bailout);
-  __ ldr(scratch, FieldMemOperand(separator, HeapObject::kMapOffset));
-  __ ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset));
-  __ JumpIfInstanceTypeIsNotSequentialOneByte(scratch, scratch, &bailout);
+  __ LoadP(scratch1, FieldMemOperand(separator, HeapObject::kMapOffset));
+  __ lbz(scratch1, FieldMemOperand(scratch1, Map::kInstanceTypeOffset));
+  __ JumpIfInstanceTypeIsNotSequentialOneByte(scratch1, scratch2, &bailout);
 
   // Add (separator length times array_length) - separator length to the
-  // string_length to get the length of the result string. array_length is not
-  // smi but the other values are, so the result is a smi
-  __ ldr(scratch, FieldMemOperand(separator, SeqOneByteString::kLengthOffset));
-  __ sub(string_length, string_length, Operand(scratch));
-  __ smull(scratch, ip, array_length, scratch);
+  // string_length to get the length of the result string.
+  __ LoadP(scratch1,
+           FieldMemOperand(separator, SeqOneByteString::kLengthOffset));
+  __ sub(string_length, string_length, scratch1);
+#if V8_TARGET_ARCH_PPC64
+  __ SmiUntag(scratch1, scratch1);
+  __ Mul(scratch2, array_length, scratch1);
   // Check for smi overflow. No overflow if higher 33 bits of 64-bit result are
   // zero.
-  __ cmp(ip, Operand::Zero());
-  __ b(ne, &bailout);
-  __ tst(scratch, Operand(0x80000000));
-  __ b(ne, &bailout);
-  __ add(string_length, string_length, Operand(scratch), SetCC);
-  __ b(vs, &bailout);
+  __ ShiftRightImm(ip, scratch2, Operand(31), SetRC);
+  __ bne(&bailout, cr0);
+  __ SmiTag(scratch2, scratch2);
+#else
+  // array_length is not smi but the other values are, so the result is a smi
+  __ mullw(scratch2, array_length, scratch1);
+  __ mulhw(ip, array_length, scratch1);
+  // Check for smi overflow. No overflow if higher 33 bits of 64-bit result are
+  // zero.
+  __ cmpi(ip, Operand::Zero());
+  __ bne(&bailout);
+  __ cmpwi(scratch2, Operand::Zero());
+  __ blt(&bailout);
+#endif
+
+  __ AddAndCheckForOverflow(string_length, string_length, scratch2, scratch1,
+                            r0);
+  __ BranchOnOverflow(&bailout);
   __ SmiUntag(string_length);
 
   // Get first element in the array to free up the elements register to be used
   // for the result.
-  __ add(element,
-         elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
+  __ addi(element, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
   result = elements;  // End of live range for elements.
   elements = no_reg;
   // Live values in registers:
   //   element: First array element
   //   separator: Separator string
   //   string_length: Length of result string (not smi)
   //   array_length: Length of the array.
-  __ AllocateOneByteString(result, string_length, scratch,
-                           string,        // used as scratch
-                           elements_end,  // used as scratch
-                           &bailout);
+  __ AllocateOneByteString(result, string_length, scratch1, scratch2,
+                           elements_end, &bailout);
   // Prepare for looping. Set up elements_end to end of the array. Set
   // result_pos to the position of the result where to write the first
   // character.
-  __ add(elements_end, element, Operand(array_length, LSL, kPointerSizeLog2));
+  __ ShiftLeftImm(elements_end, array_length, Operand(kPointerSizeLog2));
+  __ add(elements_end, element, elements_end);
   result_pos = array_length;  // End of live range for array_length.
   array_length = no_reg;
-  __ add(result_pos,
-         result,
-         Operand(SeqOneByteString::kHeaderSize - kHeapObjectTag));
+  __ addi(result_pos, result,
+          Operand(SeqOneByteString::kHeaderSize - kHeapObjectTag));
 
   // Check the length of the separator.
-  __ ldr(scratch, FieldMemOperand(separator, SeqOneByteString::kLengthOffset));
-  __ cmp(scratch, Operand(Smi::FromInt(1)));
-  __ b(eq, &one_char_separator);
-  __ b(gt, &long_separator);
+  __ LoadP(scratch1,
+           FieldMemOperand(separator, SeqOneByteString::kLengthOffset));
+  __ CmpSmiLiteral(scratch1, Smi::FromInt(1), r0);
+  __ beq(&one_char_separator);
+  __ bgt(&long_separator);
 
   // Empty separator case
   __ bind(&empty_separator_loop);
   // Live values in registers:
   //   result_pos: the position to which we are currently copying characters.
   //   element: Current array element.
   //   elements_end: Array end.
 
   // Copy next array element to the result.
-  __ ldr(string, MemOperand(element, kPointerSize, PostIndex));
-  __ ldr(string_length, FieldMemOperand(string, String::kLengthOffset));
+  __ LoadP(string, MemOperand(element));
+  __ addi(element, element, Operand(kPointerSize));
+  __ LoadP(string_length, FieldMemOperand(string, String::kLengthOffset));
   __ SmiUntag(string_length);
-  __ add(string,
-         string,
-         Operand(SeqOneByteString::kHeaderSize - kHeapObjectTag));
-  __ CopyBytes(string, result_pos, string_length, scratch);
+  __ addi(string, string,
+          Operand(SeqOneByteString::kHeaderSize - kHeapObjectTag));
+  __ CopyBytes(string, result_pos, string_length, scratch1);
   __ cmp(element, elements_end);
-  __ b(lt, &empty_separator_loop);  // End while (element < elements_end).
-  DCHECK(result.is(r0));
+  __ blt(&empty_separator_loop);  // End while (element < elements_end).
+  DCHECK(result.is(r3));
   __ b(&done);
 
   // One-character separator case
   __ bind(&one_char_separator);
   // Replace separator with its one-byte character value.
-  __ ldrb(separator, FieldMemOperand(separator, SeqOneByteString::kHeaderSize));
+  __ lbz(separator, FieldMemOperand(separator, SeqOneByteString::kHeaderSize));
   // Jump into the loop after the code that copies the separator, so the first
   // element is not preceded by a separator
-  __ jmp(&one_char_separator_loop_entry);
+  __ b(&one_char_separator_loop_entry);
 
   __ bind(&one_char_separator_loop);
   // Live values in registers:
   //   result_pos: the position to which we are currently copying characters.
   //   element: Current array element.
   //   elements_end: Array end.
   //   separator: Single separator one-byte char (in lower byte).
 
   // Copy the separator character to the result.
-  __ strb(separator, MemOperand(result_pos, 1, PostIndex));
+  __ stb(separator, MemOperand(result_pos));
+  __ addi(result_pos, result_pos, Operand(1));
 
   // Copy next array element to the result.
   __ bind(&one_char_separator_loop_entry);
-  __ ldr(string, MemOperand(element, kPointerSize, PostIndex));
-  __ ldr(string_length, FieldMemOperand(string, String::kLengthOffset));
+  __ LoadP(string, MemOperand(element));
+  __ addi(element, element, Operand(kPointerSize));
+  __ LoadP(string_length, FieldMemOperand(string, String::kLengthOffset));
   __ SmiUntag(string_length);
-  __ add(string,
-         string,
-         Operand(SeqOneByteString::kHeaderSize - kHeapObjectTag));
-  __ CopyBytes(string, result_pos, string_length, scratch);
-  __ cmp(element, elements_end);
-  __ b(lt, &one_char_separator_loop);  // End while (element < elements_end).
-  DCHECK(result.is(r0));
+  __ addi(string, string,
+          Operand(SeqOneByteString::kHeaderSize - kHeapObjectTag));
+  __ CopyBytes(string, result_pos, string_length, scratch1);
+  __ cmpl(element, elements_end);
+  __ blt(&one_char_separator_loop);  // End while (element < elements_end).
+  DCHECK(result.is(r3));
   __ b(&done);
 
   // Long separator case (separator is more than one character). Entry is at the
   // label long_separator below.
   __ bind(&long_separator_loop);
   // Live values in registers:
   //   result_pos: the position to which we are currently copying characters.
   //   element: Current array element.
   //   elements_end: Array end.
   //   separator: Separator string.
 
   // Copy the separator to the result.
-  __ ldr(string_length, FieldMemOperand(separator, String::kLengthOffset));
+  __ LoadP(string_length, FieldMemOperand(separator, String::kLengthOffset));
   __ SmiUntag(string_length);
-  __ add(string,
-         separator,
-         Operand(SeqOneByteString::kHeaderSize - kHeapObjectTag));
-  __ CopyBytes(string, result_pos, string_length, scratch);
+  __ addi(string, separator,
+          Operand(SeqOneByteString::kHeaderSize - kHeapObjectTag));
+  __ CopyBytes(string, result_pos, string_length, scratch1);
 
   __ bind(&long_separator);
-  __ ldr(string, MemOperand(element, kPointerSize, PostIndex));
-  __ ldr(string_length, FieldMemOperand(string, String::kLengthOffset));
+  __ LoadP(string, MemOperand(element));
+  __ addi(element, element, Operand(kPointerSize));
+  __ LoadP(string_length, FieldMemOperand(string, String::kLengthOffset));
   __ SmiUntag(string_length);
-  __ add(string,
-         string,
-         Operand(SeqOneByteString::kHeaderSize - kHeapObjectTag));
-  __ CopyBytes(string, result_pos, string_length, scratch);
-  __ cmp(element, elements_end);
-  __ b(lt, &long_separator_loop);  // End while (element < elements_end).
-  DCHECK(result.is(r0));
+  __ addi(string, string,
+          Operand(SeqOneByteString::kHeaderSize - kHeapObjectTag));
+  __ CopyBytes(string, result_pos, string_length, scratch1);
+  __ cmpl(element, elements_end);
+  __ blt(&long_separator_loop);  // End while (element < elements_end).
+  DCHECK(result.is(r3));
   __ b(&done);
 
   __ bind(&bailout);
-  __ LoadRoot(r0, Heap::kUndefinedValueRootIndex);
+  __ LoadRoot(r3, Heap::kUndefinedValueRootIndex);
   __ bind(&done);
-  context()->Plug(r0);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::EmitDebugIsActive(CallRuntime* expr) {
   DCHECK(expr->arguments()->length() == 0);
   ExternalReference debug_is_active =
       ExternalReference::debug_is_active_address(isolate());
   __ mov(ip, Operand(debug_is_active));
-  __ ldrb(r0, MemOperand(ip));
-  __ SmiTag(r0);
-  context()->Plug(r0);
+  __ lbz(r3, MemOperand(ip));
+  __ SmiTag(r3);
+  context()->Plug(r3);
 }
 
 
 void FullCodeGenerator::VisitCallRuntime(CallRuntime* expr) {
   if (expr->function() != NULL &&
       expr->function()->intrinsic_type == Runtime::INLINE) {
     Comment cmnt(masm_, "[ InlineRuntimeCall");
     EmitInlineRuntimeCall(expr);
     return;
   }
 
   Comment cmnt(masm_, "[ CallRuntime");
   ZoneList<Expression*>* args = expr->arguments();
   int arg_count = args->length();
 
   if (expr->is_jsruntime()) {
     // Push the builtins object as the receiver.
     Register receiver = LoadDescriptor::ReceiverRegister();
-    __ ldr(receiver, GlobalObjectOperand());
-    __ ldr(receiver, FieldMemOperand(receiver, GlobalObject::kBuiltinsOffset));
+    __ LoadP(receiver, GlobalObjectOperand());
+    __ LoadP(receiver,
+             FieldMemOperand(receiver, GlobalObject::kBuiltinsOffset));
     __ push(receiver);
 
     // Load the function from the receiver.
     __ mov(LoadDescriptor::NameRegister(), Operand(expr->name()));
     if (FLAG_vector_ics) {
       __ mov(VectorLoadICDescriptor::SlotRegister(),
              Operand(SmiFromSlot(expr->CallRuntimeFeedbackSlot())));
       CallLoadIC(NOT_CONTEXTUAL);
     } else {
       CallLoadIC(NOT_CONTEXTUAL, expr->CallRuntimeFeedbackId());
     }
 
     // Push the target function under the receiver.
-    __ ldr(ip, MemOperand(sp, 0));
+    __ LoadP(ip, MemOperand(sp, 0));
     __ push(ip);
-    __ str(r0, MemOperand(sp, kPointerSize));
+    __ StoreP(r3, MemOperand(sp, kPointerSize));
 
     // Push the arguments ("left-to-right").
     int arg_count = args->length();
     for (int i = 0; i < arg_count; i++) {
       VisitForStackValue(args->at(i));
     }
 
     // Record source position of the IC call.
     SetSourcePosition(expr->position());
     CallFunctionStub stub(isolate(), arg_count, NO_CALL_FUNCTION_FLAGS);
-    __ ldr(r1, MemOperand(sp, (arg_count + 1) * kPointerSize));
+    __ LoadP(r4, MemOperand(sp, (arg_count + 1) * kPointerSize), r0);
     __ CallStub(&stub);
 
     // Restore context register.
-    __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
+    __ LoadP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
 
-    context()->DropAndPlug(1, r0);
+    context()->DropAndPlug(1, r3);
   } else {
     // Push the arguments ("left-to-right").
     for (int i = 0; i < arg_count; i++) {
       VisitForStackValue(args->at(i));
     }
 
     // Call the C runtime function.
     __ CallRuntime(expr->function(), arg_count);
-    context()->Plug(r0);
+    context()->Plug(r3);
   }
 }
 
 
 void FullCodeGenerator::VisitUnaryOperation(UnaryOperation* expr) {
   switch (expr->op()) {
     case Token::DELETE: {
       Comment cmnt(masm_, "[ UnaryOperation (DELETE)");
       Property* property = expr->expression()->AsProperty();
       VariableProxy* proxy = expr->expression()->AsVariableProxy();
 
       if (property != NULL) {
         VisitForStackValue(property->obj());
         VisitForStackValue(property->key());
-        __ mov(r1, Operand(Smi::FromInt(strict_mode())));
-        __ push(r1);
+        __ LoadSmiLiteral(r4, Smi::FromInt(strict_mode()));
+        __ push(r4);
         __ InvokeBuiltin(Builtins::DELETE, CALL_FUNCTION);
-        context()->Plug(r0);
+        context()->Plug(r3);
       } else if (proxy != NULL) {
         Variable* var = proxy->var();
         // Delete of an unqualified identifier is disallowed in strict mode
         // but "delete this" is allowed.
         DCHECK(strict_mode() == SLOPPY || var->is_this());
         if (var->IsUnallocated()) {
-          __ ldr(r2, GlobalObjectOperand());
-          __ mov(r1, Operand(var->name()));
-          __ mov(r0, Operand(Smi::FromInt(SLOPPY)));
-          __ Push(r2, r1, r0);
+          __ LoadP(r5, GlobalObjectOperand());
+          __ mov(r4, Operand(var->name()));
+          __ LoadSmiLiteral(r3, Smi::FromInt(SLOPPY));
+          __ Push(r5, r4, r3);
           __ InvokeBuiltin(Builtins::DELETE, CALL_FUNCTION);
-          context()->Plug(r0);
+          context()->Plug(r3);
         } else if (var->IsStackAllocated() || var->IsContextSlot()) {
           // Result of deleting non-global, non-dynamic variables is false.
           // The subexpression does not have side effects.
           context()->Plug(var->is_this());
         } else {
           // Non-global variable.  Call the runtime to try to delete from the
           // context where the variable was introduced.
-          DCHECK(!context_register().is(r2));
-          __ mov(r2, Operand(var->name()));
-          __ Push(context_register(), r2);
+          DCHECK(!context_register().is(r5));
+          __ mov(r5, Operand(var->name()));
+          __ Push(context_register(), r5);
           __ CallRuntime(Runtime::kDeleteLookupSlot, 2);
-          context()->Plug(r0);
+          context()->Plug(r3);
         }
       } else {
         // Result of deleting non-property, non-variable reference is true.
         // The subexpression may have side effects.
         VisitForEffect(expr->expression());
         context()->Plug(true);
       }
       break;
     }
 
     case Token::VOID: {
       Comment cmnt(masm_, "[ UnaryOperation (VOID)");
       VisitForEffect(expr->expression());
       context()->Plug(Heap::kUndefinedValueRootIndex);
       break;
     }
 
     case Token::NOT: {
       Comment cmnt(masm_, "[ UnaryOperation (NOT)");
       if (context()->IsEffect()) {
         // Unary NOT has no side effects so it's only necessary to visit the
         // subexpression.  Match the optimizing compiler by not branching.
         VisitForEffect(expr->expression());
       } else if (context()->IsTest()) {
         const TestContext* test = TestContext::cast(context());
         // The labels are swapped for the recursive call.
-        VisitForControl(expr->expression(),
-                        test->false_label(),
-                        test->true_label(),
-                        test->fall_through());
+        VisitForControl(expr->expression(), test->false_label(),
+                        test->true_label(), test->fall_through());
         context()->Plug(test->true_label(), test->false_label());
       } else {
         // We handle value contexts explicitly rather than simply visiting
         // for control and plugging the control flow into the context,
         // because we need to prepare a pair of extra administrative AST ids
         // for the optimizing compiler.
         DCHECK(context()->IsAccumulatorValue() || context()->IsStackValue());
         Label materialize_true, materialize_false, done;
-        VisitForControl(expr->expression(),
-                        &materialize_false,
-                        &materialize_true,
-                        &materialize_true);
+        VisitForControl(expr->expression(), &materialize_false,
+                        &materialize_true, &materialize_true);
         __ bind(&materialize_true);
         PrepareForBailoutForId(expr->MaterializeTrueId(), NO_REGISTERS);
-        __ LoadRoot(r0, Heap::kTrueValueRootIndex);
-        if (context()->IsStackValue()) __ push(r0);
-        __ jmp(&done);
+        __ LoadRoot(r3, Heap::kTrueValueRootIndex);
+        if (context()->IsStackValue()) __ push(r3);
+        __ b(&done);
         __ bind(&materialize_false);
         PrepareForBailoutForId(expr->MaterializeFalseId(), NO_REGISTERS);
-        __ LoadRoot(r0, Heap::kFalseValueRootIndex);
-        if (context()->IsStackValue()) __ push(r0);
+        __ LoadRoot(r3, Heap::kFalseValueRootIndex);
+        if (context()->IsStackValue()) __ push(r3);
         __ bind(&done);
       }
       break;
     }
 
     case Token::TYPEOF: {
       Comment cmnt(masm_, "[ UnaryOperation (TYPEOF)");
-      { StackValueContext context(this);
+      {
+        StackValueContext context(this);
         VisitForTypeofValue(expr->expression());
       }
       __ CallRuntime(Runtime::kTypeof, 1);
-      context()->Plug(r0);
+      context()->Plug(r3);
       break;
     }
 
     default:
       UNREACHABLE();
   }
 }
 
 
 void FullCodeGenerator::VisitCountOperation(CountOperation* expr) {
   DCHECK(expr->expression()->IsValidReferenceExpression());
 
   Comment cmnt(masm_, "[ CountOperation");
   SetSourcePosition(expr->position());
 
   Property* prop = expr->expression()->AsProperty();
   LhsKind assign_type = GetAssignType(prop);
 
   // Evaluate expression and get value.
   if (assign_type == VARIABLE) {
     DCHECK(expr->expression()->AsVariableProxy()->var() != NULL);
     AccumulatorValueContext context(this);
     EmitVariableLoad(expr->expression()->AsVariableProxy());
   } else {
     // Reserve space for result of postfix operation.
     if (expr->is_postfix() && !context()->IsEffect()) {
-      __ mov(ip, Operand(Smi::FromInt(0)));
+      __ LoadSmiLiteral(ip, Smi::FromInt(0));
       __ push(ip);
     }
     switch (assign_type) {
       case NAMED_PROPERTY: {
         // Put the object both on the stack and in the register.
         VisitForStackValue(prop->obj());
-        __ ldr(LoadDescriptor::ReceiverRegister(), MemOperand(sp, 0));
+        __ LoadP(LoadDescriptor::ReceiverRegister(), MemOperand(sp, 0));
         EmitNamedPropertyLoad(prop);
         break;
       }
 
       case NAMED_SUPER_PROPERTY: {
         VisitForStackValue(prop->obj()->AsSuperReference()->this_var());
         EmitLoadHomeObject(prop->obj()->AsSuperReference());
         __ Push(result_register());
-        const Register scratch = r1;
-        __ ldr(scratch, MemOperand(sp, kPointerSize));
-        __ Push(scratch);
-        __ Push(result_register());
+        const Register scratch = r4;
+        __ LoadP(scratch, MemOperand(sp, kPointerSize));
+        __ Push(scratch, result_register());
         EmitNamedSuperPropertyLoad(prop);
         break;
       }
 
       case KEYED_SUPER_PROPERTY: {
         VisitForStackValue(prop->obj()->AsSuperReference()->this_var());
         EmitLoadHomeObject(prop->obj()->AsSuperReference());
-        __ Push(result_register());
+        const Register scratch = r4;
+        const Register scratch1 = r5;
+        __ Move(scratch, result_register());
         VisitForAccumulatorValue(prop->key());
-        __ Push(result_register());
-        const Register scratch = r1;
-        __ ldr(scratch, MemOperand(sp, 2 * kPointerSize));
-        __ Push(scratch);
-        __ ldr(scratch, MemOperand(sp, 2 * kPointerSize));
-        __ Push(scratch);
-        __ Push(result_register());
+        __ Push(scratch, result_register());
+        __ LoadP(scratch1, MemOperand(sp, 2 * kPointerSize));
+        __ Push(scratch1, scratch, result_register());
         EmitKeyedSuperPropertyLoad(prop);
         break;
       }
 
       case KEYED_PROPERTY: {
         VisitForStackValue(prop->obj());
         VisitForStackValue(prop->key());
-        __ ldr(LoadDescriptor::ReceiverRegister(),
-               MemOperand(sp, 1 * kPointerSize));
-        __ ldr(LoadDescriptor::NameRegister(), MemOperand(sp, 0));
+        __ LoadP(LoadDescriptor::ReceiverRegister(),
+                 MemOperand(sp, 1 * kPointerSize));
+        __ LoadP(LoadDescriptor::NameRegister(), MemOperand(sp, 0));
         EmitKeyedPropertyLoad(prop);
         break;
       }
 
       case VARIABLE:
         UNREACHABLE();
     }
   }
 
   // We need a second deoptimization point after loading the value
   // in case evaluating the property load my have a side effect.
   if (assign_type == VARIABLE) {
     PrepareForBailout(expr->expression(), TOS_REG);
   } else {
     PrepareForBailoutForId(prop->LoadId(), TOS_REG);
   }
 
   // Inline smi case if we are in a loop.
   Label stub_call, done;
   JumpPatchSite patch_site(masm_);
 
   int count_value = expr->op() == Token::INC ? 1 : -1;
   if (ShouldInlineSmiCase(expr->op())) {
     Label slow;
-    patch_site.EmitJumpIfNotSmi(r0, &slow);
+    patch_site.EmitJumpIfNotSmi(r3, &slow);
 
     // Save result for postfix expressions.
     if (expr->is_postfix()) {
       if (!context()->IsEffect()) {
         // Save the result on the stack. If we have a named or keyed property
         // we store the result under the receiver that is currently on top
         // of the stack.
         switch (assign_type) {
           case VARIABLE:
-            __ push(r0);
+            __ push(r3);
             break;
           case NAMED_PROPERTY:
-            __ str(r0, MemOperand(sp, kPointerSize));
+            __ StoreP(r3, MemOperand(sp, kPointerSize));
             break;
           case NAMED_SUPER_PROPERTY:
-            __ str(r0, MemOperand(sp, 2 * kPointerSize));
+            __ StoreP(r3, MemOperand(sp, 2 * kPointerSize));
             break;
           case KEYED_PROPERTY:
-            __ str(r0, MemOperand(sp, 2 * kPointerSize));
+            __ StoreP(r3, MemOperand(sp, 2 * kPointerSize));
             break;
           case KEYED_SUPER_PROPERTY:
-            __ str(r0, MemOperand(sp, 3 * kPointerSize));
+            __ StoreP(r3, MemOperand(sp, 3 * kPointerSize));
             break;
         }
       }
     }
 
-    __ add(r0, r0, Operand(Smi::FromInt(count_value)), SetCC);
-    __ b(vc, &done);
+    Register scratch1 = r4;
+    Register scratch2 = r5;
+    __ LoadSmiLiteral(scratch1, Smi::FromInt(count_value));
+    __ AddAndCheckForOverflow(r3, r3, scratch1, scratch2, r0);
+    __ BranchOnNoOverflow(&done);
     // Call stub. Undo operation first.
-    __ sub(r0, r0, Operand(Smi::FromInt(count_value)));
-    __ jmp(&stub_call);
+    __ sub(r3, r3, scratch1);
+    __ b(&stub_call);
     __ bind(&slow);
   }
   ToNumberStub convert_stub(isolate());
   __ CallStub(&convert_stub);
 
   // Save result for postfix expressions.
   if (expr->is_postfix()) {
     if (!context()->IsEffect()) {
       // Save the result on the stack. If we have a named or keyed property
       // we store the result under the receiver that is currently on top
       // of the stack.
       switch (assign_type) {
         case VARIABLE:
-          __ push(r0);
+          __ push(r3);
           break;
         case NAMED_PROPERTY:
-          __ str(r0, MemOperand(sp, kPointerSize));
+          __ StoreP(r3, MemOperand(sp, kPointerSize));
           break;
         case NAMED_SUPER_PROPERTY:
-          __ str(r0, MemOperand(sp, 2 * kPointerSize));
+          __ StoreP(r3, MemOperand(sp, 2 * kPointerSize));
           break;
         case KEYED_PROPERTY:
-          __ str(r0, MemOperand(sp, 2 * kPointerSize));
+          __ StoreP(r3, MemOperand(sp, 2 * kPointerSize));
           break;
         case KEYED_SUPER_PROPERTY:
-          __ str(r0, MemOperand(sp, 3 * kPointerSize));
+          __ StoreP(r3, MemOperand(sp, 3 * kPointerSize));
           break;
       }
     }
   }
 
-
   __ bind(&stub_call);
-  __ mov(r1, r0);
-  __ mov(r0, Operand(Smi::FromInt(count_value)));
+  __ mr(r4, r3);
+  __ LoadSmiLiteral(r3, Smi::FromInt(count_value));
 
   // Record position before stub call.
   SetSourcePosition(expr->position());
 
   Handle<Code> code =
       CodeFactory::BinaryOpIC(isolate(), Token::ADD, NO_OVERWRITE).code();
   CallIC(code, expr->CountBinOpFeedbackId());
   patch_site.EmitPatchInfo();
   __ bind(&done);
 
-  // Store the value returned in r0.
+  // Store the value returned in r3.
   switch (assign_type) {
     case VARIABLE:
       if (expr->is_postfix()) {
-        { EffectContext context(this);
+        {
+          EffectContext context(this);
           EmitVariableAssignment(expr->expression()->AsVariableProxy()->var(),
                                  Token::ASSIGN);
           PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
-          context.Plug(r0);
+          context.Plug(r3);
         }
         // For all contexts except EffectConstant We have the result on
         // top of the stack.
         if (!context()->IsEffect()) {
           context()->PlugTOS();
         }
       } else {
         EmitVariableAssignment(expr->expression()->AsVariableProxy()->var(),
                                Token::ASSIGN);
         PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
-        context()->Plug(r0);
+        context()->Plug(r3);
       }
       break;
     case NAMED_PROPERTY: {
       __ mov(StoreDescriptor::NameRegister(),
              Operand(prop->key()->AsLiteral()->value()));
       __ pop(StoreDescriptor::ReceiverRegister());
       CallStoreIC(expr->CountStoreFeedbackId());
       PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
       if (expr->is_postfix()) {
         if (!context()->IsEffect()) {
           context()->PlugTOS();
         }
       } else {
-        context()->Plug(r0);
+        context()->Plug(r3);
       }
       break;
     }
     case NAMED_SUPER_PROPERTY: {
       EmitNamedSuperPropertyStore(prop);
       if (expr->is_postfix()) {
         if (!context()->IsEffect()) {
           context()->PlugTOS();
         }
       } else {
-        context()->Plug(r0);
+        context()->Plug(r3);
       }
       break;
     }
     case KEYED_SUPER_PROPERTY: {
       EmitKeyedSuperPropertyStore(prop);
       if (expr->is_postfix()) {
         if (!context()->IsEffect()) {
           context()->PlugTOS();
         }
       } else {
-        context()->Plug(r0);
+        context()->Plug(r3);
       }
       break;
     }
     case KEYED_PROPERTY: {
       __ Pop(StoreDescriptor::ReceiverRegister(),
              StoreDescriptor::NameRegister());
       Handle<Code> ic =
           CodeFactory::KeyedStoreIC(isolate(), strict_mode()).code();
       CallIC(ic, expr->CountStoreFeedbackId());
       PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
       if (expr->is_postfix()) {
         if (!context()->IsEffect()) {
           context()->PlugTOS();
         }
       } else {
-        context()->Plug(r0);
+        context()->Plug(r3);
       }
       break;
     }
   }
 }
 
 
 void FullCodeGenerator::VisitForTypeofValue(Expression* expr) {
   DCHECK(!context()->IsEffect());
   DCHECK(!context()->IsTest());
   VariableProxy* proxy = expr->AsVariableProxy();
   if (proxy != NULL && proxy->var()->IsUnallocated()) {
     Comment cmnt(masm_, "[ Global variable");
-    __ ldr(LoadDescriptor::ReceiverRegister(), GlobalObjectOperand());
+    __ LoadP(LoadDescriptor::ReceiverRegister(), GlobalObjectOperand());
     __ mov(LoadDescriptor::NameRegister(), Operand(proxy->name()));
     if (FLAG_vector_ics) {
       __ mov(VectorLoadICDescriptor::SlotRegister(),
              Operand(SmiFromSlot(proxy->VariableFeedbackSlot())));
     }
     // Use a regular load, not a contextual load, to avoid a reference
     // error.
     CallLoadIC(NOT_CONTEXTUAL);
     PrepareForBailout(expr, TOS_REG);
-    context()->Plug(r0);
+    context()->Plug(r3);
   } else if (proxy != NULL && proxy->var()->IsLookupSlot()) {
     Comment cmnt(masm_, "[ Lookup slot");
     Label done, slow;
 
     // Generate code for loading from variables potentially shadowed
     // by eval-introduced variables.
     EmitDynamicLookupFastCase(proxy, INSIDE_TYPEOF, &slow, &done);
 
     __ bind(&slow);
-    __ mov(r0, Operand(proxy->name()));
-    __ Push(cp, r0);
+    __ mov(r3, Operand(proxy->name()));
+    __ Push(cp, r3);
     __ CallRuntime(Runtime::kLoadLookupSlotNoReferenceError, 2);
     PrepareForBailout(expr, TOS_REG);
     __ bind(&done);
 
-    context()->Plug(r0);
+    context()->Plug(r3);
   } else {
     // This expression cannot throw a reference error at the top level.
     VisitInDuplicateContext(expr);
   }
 }
 
 
 void FullCodeGenerator::EmitLiteralCompareTypeof(Expression* expr,
                                                  Expression* sub_expr,
                                                  Handle<String> check) {
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
-  { AccumulatorValueContext context(this);
+  {
+    AccumulatorValueContext context(this);
     VisitForTypeofValue(sub_expr);
   }
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
 
   Factory* factory = isolate()->factory();
   if (String::Equals(check, factory->number_string())) {
-    __ JumpIfSmi(r0, if_true);
-    __ ldr(r0, FieldMemOperand(r0, HeapObject::kMapOffset));
+    __ JumpIfSmi(r3, if_true);
+    __ LoadP(r3, FieldMemOperand(r3, HeapObject::kMapOffset));
     __ LoadRoot(ip, Heap::kHeapNumberMapRootIndex);
-    __ cmp(r0, ip);
+    __ cmp(r3, ip);
     Split(eq, if_true, if_false, fall_through);
   } else if (String::Equals(check, factory->string_string())) {
-    __ JumpIfSmi(r0, if_false);
+    __ JumpIfSmi(r3, if_false);
     // Check for undetectable objects => false.
-    __ CompareObjectType(r0, r0, r1, FIRST_NONSTRING_TYPE);
-    __ b(ge, if_false);
-    __ ldrb(r1, FieldMemOperand(r0, Map::kBitFieldOffset));
-    __ tst(r1, Operand(1 << Map::kIsUndetectable));
-    Split(eq, if_true, if_false, fall_through);
+    __ CompareObjectType(r3, r3, r4, FIRST_NONSTRING_TYPE);
+    __ bge(if_false);
+    __ lbz(r4, FieldMemOperand(r3, Map::kBitFieldOffset));
+    STATIC_ASSERT((1 << Map::kIsUndetectable) < 0x8000);
+    __ andi(r0, r4, Operand(1 << Map::kIsUndetectable));
+    Split(eq, if_true, if_false, fall_through, cr0);
   } else if (String::Equals(check, factory->symbol_string())) {
-    __ JumpIfSmi(r0, if_false);
-    __ CompareObjectType(r0, r0, r1, SYMBOL_TYPE);
+    __ JumpIfSmi(r3, if_false);
+    __ CompareObjectType(r3, r3, r4, SYMBOL_TYPE);
     Split(eq, if_true, if_false, fall_through);
   } else if (String::Equals(check, factory->boolean_string())) {
-    __ CompareRoot(r0, Heap::kTrueValueRootIndex);
-    __ b(eq, if_true);
-    __ CompareRoot(r0, Heap::kFalseValueRootIndex);
+    __ CompareRoot(r3, Heap::kTrueValueRootIndex);
+    __ beq(if_true);
+    __ CompareRoot(r3, Heap::kFalseValueRootIndex);
     Split(eq, if_true, if_false, fall_through);
   } else if (String::Equals(check, factory->undefined_string())) {
-    __ CompareRoot(r0, Heap::kUndefinedValueRootIndex);
-    __ b(eq, if_true);
-    __ JumpIfSmi(r0, if_false);
+    __ CompareRoot(r3, Heap::kUndefinedValueRootIndex);
+    __ beq(if_true);
+    __ JumpIfSmi(r3, if_false);
     // Check for undetectable objects => true.
-    __ ldr(r0, FieldMemOperand(r0, HeapObject::kMapOffset));
-    __ ldrb(r1, FieldMemOperand(r0, Map::kBitFieldOffset));
-    __ tst(r1, Operand(1 << Map::kIsUndetectable));
-    Split(ne, if_true, if_false, fall_through);
+    __ LoadP(r3, FieldMemOperand(r3, HeapObject::kMapOffset));
+    __ lbz(r4, FieldMemOperand(r3, Map::kBitFieldOffset));
+    __ andi(r0, r4, Operand(1 << Map::kIsUndetectable));
+    Split(ne, if_true, if_false, fall_through, cr0);
 
   } else if (String::Equals(check, factory->function_string())) {
-    __ JumpIfSmi(r0, if_false);
+    __ JumpIfSmi(r3, if_false);
     STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2);
-    __ CompareObjectType(r0, r0, r1, JS_FUNCTION_TYPE);
-    __ b(eq, if_true);
-    __ cmp(r1, Operand(JS_FUNCTION_PROXY_TYPE));
+    __ CompareObjectType(r3, r3, r4, JS_FUNCTION_TYPE);
+    __ beq(if_true);
+    __ cmpi(r4, Operand(JS_FUNCTION_PROXY_TYPE));
     Split(eq, if_true, if_false, fall_through);
   } else if (String::Equals(check, factory->object_string())) {
-    __ JumpIfSmi(r0, if_false);
-    __ CompareRoot(r0, Heap::kNullValueRootIndex);
-    __ b(eq, if_true);
+    __ JumpIfSmi(r3, if_false);
+    __ CompareRoot(r3, Heap::kNullValueRootIndex);
+    __ beq(if_true);
     // Check for JS objects => true.
-    __ CompareObjectType(r0, r0, r1, FIRST_NONCALLABLE_SPEC_OBJECT_TYPE);
-    __ b(lt, if_false);
-    __ CompareInstanceType(r0, r1, LAST_NONCALLABLE_SPEC_OBJECT_TYPE);
-    __ b(gt, if_false);
+    __ CompareObjectType(r3, r3, r4, FIRST_NONCALLABLE_SPEC_OBJECT_TYPE);
+    __ blt(if_false);
+    __ CompareInstanceType(r3, r4, LAST_NONCALLABLE_SPEC_OBJECT_TYPE);
+    __ bgt(if_false);
     // Check for undetectable objects => false.
-    __ ldrb(r1, FieldMemOperand(r0, Map::kBitFieldOffset));
-    __ tst(r1, Operand(1 << Map::kIsUndetectable));
-    Split(eq, if_true, if_false, fall_through);
+    __ lbz(r4, FieldMemOperand(r3, Map::kBitFieldOffset));
+    __ andi(r0, r4, Operand(1 << Map::kIsUndetectable));
+    Split(eq, if_true, if_false, fall_through, cr0);
   } else {
-    if (if_false != fall_through) __ jmp(if_false);
+    if (if_false != fall_through) __ b(if_false);
   }
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::VisitCompareOperation(CompareOperation* expr) {
   Comment cmnt(masm_, "[ CompareOperation");
   SetSourcePosition(expr->position());
 
   // First we try a fast inlined version of the compare when one of
   // the operands is a literal.
   if (TryLiteralCompare(expr)) return;
 
   // Always perform the comparison for its control flow.  Pack the result
   // into the expression's context after the comparison is performed.
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
   Token::Value op = expr->op();
   VisitForStackValue(expr->left());
   switch (op) {
     case Token::IN:
       VisitForStackValue(expr->right());
       __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION);
       PrepareForBailoutBeforeSplit(expr, false, NULL, NULL);
       __ LoadRoot(ip, Heap::kTrueValueRootIndex);
-      __ cmp(r0, ip);
+      __ cmp(r3, ip);
       Split(eq, if_true, if_false, fall_through);
       break;
 
     case Token::INSTANCEOF: {
       VisitForStackValue(expr->right());
       InstanceofStub stub(isolate(), InstanceofStub::kNoFlags);
       __ CallStub(&stub);
       PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
       // The stub returns 0 for true.
-      __ tst(r0, r0);
+      __ cmpi(r3, Operand::Zero());
       Split(eq, if_true, if_false, fall_through);
       break;
     }
 
     default: {
       VisitForAccumulatorValue(expr->right());
       Condition cond = CompareIC::ComputeCondition(op);
-      __ pop(r1);
+      __ pop(r4);
 
       bool inline_smi_code = ShouldInlineSmiCase(op);
       JumpPatchSite patch_site(masm_);
       if (inline_smi_code) {
         Label slow_case;
-        __ orr(r2, r0, Operand(r1));
-        patch_site.EmitJumpIfNotSmi(r2, &slow_case);
-        __ cmp(r1, r0);
+        __ orx(r5, r3, r4);
+        patch_site.EmitJumpIfNotSmi(r5, &slow_case);
+        __ cmp(r4, r3);
         Split(cond, if_true, if_false, NULL);
         __ bind(&slow_case);
       }
 
       // Record position and call the compare IC.
       SetSourcePosition(expr->position());
       Handle<Code> ic = CodeFactory::CompareIC(isolate(), op).code();
       CallIC(ic, expr->CompareOperationFeedbackId());
       patch_site.EmitPatchInfo();
       PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
-      __ cmp(r0, Operand::Zero());
+      __ cmpi(r3, Operand::Zero());
       Split(cond, if_true, if_false, fall_through);
     }
   }
 
   // Convert the result of the comparison into one expected for this
   // expression's context.
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::EmitLiteralCompareNil(CompareOperation* expr,
                                               Expression* sub_expr,
                                               NilValue nil) {
   Label materialize_true, materialize_false;
   Label* if_true = NULL;
   Label* if_false = NULL;
   Label* fall_through = NULL;
-  context()->PrepareTest(&materialize_true, &materialize_false,
-                         &if_true, &if_false, &fall_through);
+  context()->PrepareTest(&materialize_true, &materialize_false, &if_true,
+                         &if_false, &fall_through);
 
   VisitForAccumulatorValue(sub_expr);
   PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
   if (expr->op() == Token::EQ_STRICT) {
-    Heap::RootListIndex nil_value = nil == kNullValue ?
-        Heap::kNullValueRootIndex :
-        Heap::kUndefinedValueRootIndex;
-    __ LoadRoot(r1, nil_value);
-    __ cmp(r0, r1);
+    Heap::RootListIndex nil_value = nil == kNullValue
+                                        ? Heap::kNullValueRootIndex
+                                        : Heap::kUndefinedValueRootIndex;
+    __ LoadRoot(r4, nil_value);
+    __ cmp(r3, r4);
     Split(eq, if_true, if_false, fall_through);
   } else {
     Handle<Code> ic = CompareNilICStub::GetUninitialized(isolate(), nil);
     CallIC(ic, expr->CompareOperationFeedbackId());
-    __ cmp(r0, Operand(0));
+    __ cmpi(r3, Operand::Zero());
     Split(ne, if_true, if_false, fall_through);
   }
   context()->Plug(if_true, if_false);
 }
 
 
 void FullCodeGenerator::VisitThisFunction(ThisFunction* expr) {
-  __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
-  context()->Plug(r0);
+  __ LoadP(r3, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
+  context()->Plug(r3);
 }
 
 
-Register FullCodeGenerator::result_register() {
-  return r0;
-}
+Register FullCodeGenerator::result_register() { return r3; }
 
 
-Register FullCodeGenerator::context_register() {
-  return cp;
-}
+Register FullCodeGenerator::context_register() { return cp; }
 
 
 void FullCodeGenerator::StoreToFrameField(int frame_offset, Register value) {
-  DCHECK_EQ(POINTER_SIZE_ALIGN(frame_offset), frame_offset);
-  __ str(value, MemOperand(fp, frame_offset));
+  DCHECK_EQ(static_cast<int>(POINTER_SIZE_ALIGN(frame_offset)), frame_offset);
+  __ StoreP(value, MemOperand(fp, frame_offset), r0);
 }
 
 
 void FullCodeGenerator::LoadContextField(Register dst, int context_index) {
-  __ ldr(dst, ContextOperand(cp, context_index));
+  __ LoadP(dst, ContextOperand(cp, context_index), r0);
 }
 
 
 void FullCodeGenerator::PushFunctionArgumentForContextAllocation() {
   Scope* declaration_scope = scope()->DeclarationScope();
   if (declaration_scope->is_global_scope() ||
       declaration_scope->is_module_scope()) {
     // Contexts nested in the native context have a canonical empty function
     // as their closure, not the anonymous closure containing the global
     // code.  Pass a smi sentinel and let the runtime look up the empty
     // function.
-    __ mov(ip, Operand(Smi::FromInt(0)));
+    __ LoadSmiLiteral(ip, Smi::FromInt(0));
   } else if (declaration_scope->is_eval_scope()) {
     // Contexts created by a call to eval have the same closure as the
     // context calling eval, not the anonymous closure containing the eval
     // code.  Fetch it from the context.
-    __ ldr(ip, ContextOperand(cp, Context::CLOSURE_INDEX));
+    __ LoadP(ip, ContextOperand(cp, Context::CLOSURE_INDEX));
   } else {
     DCHECK(declaration_scope->is_function_scope());
-    __ ldr(ip, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
+    __ LoadP(ip, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
   }
   __ push(ip);
 }
 
 
 // ----------------------------------------------------------------------------
 // Non-local control flow support.
 
 void FullCodeGenerator::EnterFinallyBlock() {
-  DCHECK(!result_register().is(r1));
+  DCHECK(!result_register().is(r4));
   // Store result register while executing finally block.
   __ push(result_register());
   // Cook return address in link register to stack (smi encoded Code* delta)
-  __ sub(r1, lr, Operand(masm_->CodeObject()));
-  __ SmiTag(r1);
+  __ mflr(r4);
+  __ mov(ip, Operand(masm_->CodeObject()));
+  __ sub(r4, r4, ip);
+  __ SmiTag(r4);
 
   // Store result register while executing finally block.
-  __ push(r1);
+  __ push(r4);
 
   // Store pending message while executing finally block.
   ExternalReference pending_message_obj =
       ExternalReference::address_of_pending_message_obj(isolate());
   __ mov(ip, Operand(pending_message_obj));
-  __ ldr(r1, MemOperand(ip));
-  __ push(r1);
+  __ LoadP(r4, MemOperand(ip));
+  __ push(r4);
 
   ExternalReference has_pending_message =
       ExternalReference::address_of_has_pending_message(isolate());
   __ mov(ip, Operand(has_pending_message));
-  STATIC_ASSERT(sizeof(bool) == 1);   // NOLINT(runtime/sizeof)
-  __ ldrb(r1, MemOperand(ip));
-  __ SmiTag(r1);
-  __ push(r1);
+  __ lbz(r4, MemOperand(ip));
+  __ SmiTag(r4);
+  __ push(r4);
 
   ExternalReference pending_message_script =
       ExternalReference::address_of_pending_message_script(isolate());
   __ mov(ip, Operand(pending_message_script));
-  __ ldr(r1, MemOperand(ip));
-  __ push(r1);
+  __ LoadP(r4, MemOperand(ip));
+  __ push(r4);
 }
 
 
 void FullCodeGenerator::ExitFinallyBlock() {
-  DCHECK(!result_register().is(r1));
+  DCHECK(!result_register().is(r4));
   // Restore pending message from stack.
-  __ pop(r1);
+  __ pop(r4);
   ExternalReference pending_message_script =
       ExternalReference::address_of_pending_message_script(isolate());
   __ mov(ip, Operand(pending_message_script));
-  __ str(r1, MemOperand(ip));
+  __ StoreP(r4, MemOperand(ip));
 
-  __ pop(r1);
-  __ SmiUntag(r1);
+  __ pop(r4);
+  __ SmiUntag(r4);
   ExternalReference has_pending_message =
       ExternalReference::address_of_has_pending_message(isolate());
   __ mov(ip, Operand(has_pending_message));
-  STATIC_ASSERT(sizeof(bool) == 1);   // NOLINT(runtime/sizeof)
-  __ strb(r1, MemOperand(ip));
+  __ stb(r4, MemOperand(ip));
 
-  __ pop(r1);
+  __ pop(r4);
   ExternalReference pending_message_obj =
       ExternalReference::address_of_pending_message_obj(isolate());
   __ mov(ip, Operand(pending_message_obj));
-  __ str(r1, MemOperand(ip));
+  __ StoreP(r4, MemOperand(ip));
 
   // Restore result register from stack.
-  __ pop(r1);
+  __ pop(r4);
 
   // Uncook return address and return.
   __ pop(result_register());
-  __ SmiUntag(r1);
-  __ add(pc, r1, Operand(masm_->CodeObject()));
+  __ SmiUntag(r4);
+  __ mov(ip, Operand(masm_->CodeObject()));
+  __ add(ip, ip, r4);
+  __ mtctr(ip);
+  __ bctr();
 }
 
 
 #undef __
 
 #define __ ACCESS_MASM(masm())
 
 FullCodeGenerator::NestedStatement* FullCodeGenerator::TryFinally::Exit(
-    int* stack_depth,
-    int* context_length) {
+    int* stack_depth, int* context_length) {
   // The macros used here must preserve the result register.
 
   // Because the handler block contains the context of the finally
   // code, we can restore it directly from there for the finally code
   // rather than iteratively unwinding contexts via their previous
   // links.
   __ Drop(*stack_depth);  // Down to the handler block.
   if (*context_length > 0) {
     // Restore the context to its dedicated register and the stack.
-    __ ldr(cp, MemOperand(sp, StackHandlerConstants::kContextOffset));
-    __ str(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
+    __ LoadP(cp, MemOperand(sp, StackHandlerConstants::kContextOffset));
+    __ StoreP(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
   }
   __ PopTryHandler();
-  __ bl(finally_entry_);
+  __ b(finally_entry_, SetLK);
 
   *stack_depth = 0;
   *context_length = 0;
   return previous_;
 }
 
-
 #undef __
 
 
-static Address GetInterruptImmediateLoadAddress(Address pc) {
-  Address load_address = pc - 2 * Assembler::kInstrSize;
-  if (!FLAG_enable_ool_constant_pool) {
-    DCHECK(Assembler::IsLdrPcImmediateOffset(Memory::int32_at(load_address)));
-  } else if (Assembler::IsLdrPpRegOffset(Memory::int32_at(load_address))) {
-    // This is an extended constant pool lookup.
-    if (CpuFeatures::IsSupported(ARMv7)) {
-      load_address -= 2 * Assembler::kInstrSize;
-      DCHECK(Assembler::IsMovW(Memory::int32_at(load_address)));
-      DCHECK(Assembler::IsMovT(
-          Memory::int32_at(load_address + Assembler::kInstrSize)));
-    } else {
-      load_address -= 4 * Assembler::kInstrSize;
-      DCHECK(Assembler::IsMovImmed(Memory::int32_at(load_address)));
-      DCHECK(Assembler::IsOrrImmed(
-          Memory::int32_at(load_address + Assembler::kInstrSize)));
-      DCHECK(Assembler::IsOrrImmed(
-          Memory::int32_at(load_address + 2 * Assembler::kInstrSize)));
-      DCHECK(Assembler::IsOrrImmed(
-          Memory::int32_at(load_address + 3 * Assembler::kInstrSize)));
-    }
-  } else if (CpuFeatures::IsSupported(ARMv7) &&
-             Assembler::IsMovT(Memory::int32_at(load_address))) {
-    // This is a movw / movt immediate load.
-    load_address -= Assembler::kInstrSize;
-    DCHECK(Assembler::IsMovW(Memory::int32_at(load_address)));
-  } else if (!CpuFeatures::IsSupported(ARMv7) &&
-             Assembler::IsOrrImmed(Memory::int32_at(load_address))) {
-    // This is a mov / orr immediate load.
-    load_address -= 3 * Assembler::kInstrSize;
-    DCHECK(Assembler::IsMovImmed(Memory::int32_at(load_address)));
-    DCHECK(Assembler::IsOrrImmed(
-        Memory::int32_at(load_address + Assembler::kInstrSize)));
-    DCHECK(Assembler::IsOrrImmed(
-        Memory::int32_at(load_address + 2 * Assembler::kInstrSize)));
-  } else {
-    // This is a small constant pool lookup.
-    DCHECK(Assembler::IsLdrPpImmediateOffset(Memory::int32_at(load_address)));
-  }
-  return load_address;
-}
-
-
-void BackEdgeTable::PatchAt(Code* unoptimized_code,
-                            Address pc,
+void BackEdgeTable::PatchAt(Code* unoptimized_code, Address pc,
                             BackEdgeState target_state,
                             Code* replacement_code) {
-  Address pc_immediate_load_address = GetInterruptImmediateLoadAddress(pc);
-  Address branch_address = pc_immediate_load_address - Assembler::kInstrSize;
-  CodePatcher patcher(branch_address, 1);
+  Address mov_address = Assembler::target_address_from_return_address(pc);
+  Address cmp_address = mov_address - 2 * Assembler::kInstrSize;
+  CodePatcher patcher(cmp_address, 1);
+
   switch (target_state) {
-    case INTERRUPT:
-    {
+    case INTERRUPT: {
       //  <decrement profiling counter>
-      //   bpl ok
-      //   ; load interrupt stub address into ip - either of (for ARMv7):
-      //   ; <small cp load>      |  <extended cp load> |  <immediate load>
-      //   ldr ip, [pc/pp, #imm]  |   movw ip, #imm     |   movw ip, #imm
-      //                          |   movt ip, #imm     |   movw ip, #imm
-      //                          |   ldr  ip, [pp, ip]
-      //   ; or (for ARMv6):
-      //   ; <small cp load>      |  <extended cp load> |  <immediate load>
-      //   ldr ip, [pc/pp, #imm]  |   mov ip, #imm      |   mov ip, #imm
-      //                          |   orr ip, ip, #imm> |   orr ip, ip, #imm
-      //                          |   orr ip, ip, #imm> |   orr ip, ip, #imm
-      //                          |   orr ip, ip, #imm> |   orr ip, ip, #imm
-      //   blx ip
+      //         cmpi    r6, 0
+      //         bge     <ok>            ;; not changed
+      //         mov     r12, <interrupt stub address>
+      //         mtlr    r12
+      //         blrl
       //  <reset profiling counter>
       //  ok-label
-
-      // Calculate branch offset to the ok-label - this is the difference
-      // between the branch address and |pc| (which points at <blx ip>) plus
-      // kProfileCounterResetSequence instructions
-      int branch_offset = pc - Instruction::kPCReadOffset - branch_address +
-                          kProfileCounterResetSequenceLength;
-      patcher.masm()->b(branch_offset, pl);
+      patcher.masm()->cmpi(r6, Operand::Zero());
       break;
     }
     case ON_STACK_REPLACEMENT:
     case OSR_AFTER_STACK_CHECK:
       //  <decrement profiling counter>
-      //   mov r0, r0 (NOP)
-      //   ; load on-stack replacement address into ip - either of (for ARMv7):
-      //   ; <small cp load>      |  <extended cp load> |  <immediate load>
-      //   ldr ip, [pc/pp, #imm]  |   movw ip, #imm     |   movw ip, #imm
-      //                          |   movt ip, #imm>    |   movw ip, #imm
-      //                          |   ldr  ip, [pp, ip]
-      //   ; or (for ARMv6):
-      //   ; <small cp load>      |  <extended cp load> |  <immediate load>
-      //   ldr ip, [pc/pp, #imm]  |   mov ip, #imm      |   mov ip, #imm
-      //                          |   orr ip, ip, #imm> |   orr ip, ip, #imm
-      //                          |   orr ip, ip, #imm> |   orr ip, ip, #imm
-      //                          |   orr ip, ip, #imm> |   orr ip, ip, #imm
-      //   blx ip
+      //         crset
+      //         bge     <ok>            ;; not changed
+      //         mov     r12, <on-stack replacement address>
+      //         mtlr    r12
+      //         blrl
       //  <reset profiling counter>
-      //  ok-label
-      patcher.masm()->nop();
+      //  ok-label ----- pc_after points here
+
+      // Set the LT bit such that bge is a NOP
+      patcher.masm()->crset(Assembler::encode_crbit(cr7, CR_LT));
       break;
   }
 
-  // Replace the call address.
-  Assembler::set_target_address_at(pc_immediate_load_address, unoptimized_code,
-      replacement_code->entry());
+  // Replace the stack check address in the mov sequence with the
+  // entry address of the replacement code.
+  Assembler::set_target_address_at(mov_address, unoptimized_code,
+                                   replacement_code->entry());
 
   unoptimized_code->GetHeap()->incremental_marking()->RecordCodeTargetPatch(
-      unoptimized_code, pc_immediate_load_address, replacement_code);
+      unoptimized_code, mov_address, replacement_code);
 }
 
 
 BackEdgeTable::BackEdgeState BackEdgeTable::GetBackEdgeState(
-    Isolate* isolate,
-    Code* unoptimized_code,
-    Address pc) {
-  DCHECK(Assembler::IsBlxIp(Memory::int32_at(pc - Assembler::kInstrSize)));
+    Isolate* isolate, Code* unoptimized_code, Address pc) {
+  Address mov_address = Assembler::target_address_from_return_address(pc);
+  Address cmp_address = mov_address - 2 * Assembler::kInstrSize;
+  Address interrupt_address =
+      Assembler::target_address_at(mov_address, unoptimized_code);
 
-  Address pc_immediate_load_address = GetInterruptImmediateLoadAddress(pc);
-  Address branch_address = pc_immediate_load_address - Assembler::kInstrSize;
-  Address interrupt_address = Assembler::target_address_at(
-      pc_immediate_load_address, unoptimized_code);
-
-  if (Assembler::IsBranch(Assembler::instr_at(branch_address))) {
-    DCHECK(interrupt_address ==
-           isolate->builtins()->InterruptCheck()->entry());
+  if (Assembler::IsCmpImmediate(Assembler::instr_at(cmp_address))) {
+    DCHECK(interrupt_address == isolate->builtins()->InterruptCheck()->entry());
     return INTERRUPT;
   }
 
-  DCHECK(Assembler::IsNop(Assembler::instr_at(branch_address)));
+  DCHECK(Assembler::IsCrSet(Assembler::instr_at(cmp_address)));
 
-  if (interrupt_address ==
-      isolate->builtins()->OnStackReplacement()->entry()) {
+  if (interrupt_address == isolate->builtins()->OnStackReplacement()->entry()) {
     return ON_STACK_REPLACEMENT;
   }
 
   DCHECK(interrupt_address ==
          isolate->builtins()->OsrAfterStackCheck()->entry());
   return OSR_AFTER_STACK_CHECK;
 }
-
-
-} }  // namespace v8::internal
-
-#endif  // V8_TARGET_ARCH_ARM
+}
+}  // namespace v8::internal
+#endif  // V8_TARGET_ARCH_PPC