Contribution of PowerPC port.

src/ppc/ic-ppc.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
+//
+// Copyright IBM Corp. 2012, 2013. 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/arm/assembler-arm.h"
+#include "src/ppc/assembler-ppc.h"
+
 #include "src/code-stubs.h"
 #include "src/codegen.h"
 #include "src/disasm.h"
 #include "src/ic-inl.h"
 #include "src/runtime.h"
 #include "src/stub-cache.h"
 
 namespace v8 {
 namespace internal {
 
 
 // ----------------------------------------------------------------------------
 // Static IC stub generators.
 //
 
 #define __ ACCESS_MASM(masm)
 
 
-static void GenerateGlobalInstanceTypeCheck(MacroAssembler* masm,
-                                            Register type,
+static void GenerateGlobalInstanceTypeCheck(MacroAssembler* masm, Register type,
                                             Label* global_object) {
   // Register usage:
   //   type: holds the receiver instance type on entry.
-  __ cmp(type, Operand(JS_GLOBAL_OBJECT_TYPE));
-  __ b(eq, global_object);
-  __ cmp(type, Operand(JS_BUILTINS_OBJECT_TYPE));
-  __ b(eq, global_object);
-  __ cmp(type, Operand(JS_GLOBAL_PROXY_TYPE));
-  __ b(eq, global_object);
+  __ cmpi(type, Operand(JS_GLOBAL_OBJECT_TYPE));
+  __ beq(global_object);
+  __ cmpi(type, Operand(JS_BUILTINS_OBJECT_TYPE));
+  __ beq(global_object);
+  __ cmpi(type, Operand(JS_GLOBAL_PROXY_TYPE));
+  __ beq(global_object);
 }
 
 
 // Helper function used from LoadIC GenerateNormal.
 //
 // elements: Property dictionary. It is not clobbered if a jump to the miss
 //           label is done.
 // name:     Property name. It is not clobbered if a jump to the miss label is
 //           done
 // result:   Register for the result. It is only updated if a jump to the miss
 //           label is not done. Can be the same as elements or name clobbering
 //           one of these in the case of not jumping to the miss label.
 // The two scratch registers need to be different from elements, name and
 // result.
 // The generated code assumes that the receiver has slow properties,
 // is not a global object and does not have interceptors.
-static void GenerateDictionaryLoad(MacroAssembler* masm,
-                                   Label* miss,
-                                   Register elements,
-                                   Register name,
-                                   Register result,
-                                   Register scratch1,
+static void GenerateDictionaryLoad(MacroAssembler* masm, Label* miss,
+                                   Register elements, Register name,
+                                   Register result, Register scratch1,
                                    Register scratch2) {
   // Main use of the scratch registers.
   // scratch1: Used as temporary and to hold the capacity of the property
   //           dictionary.
   // scratch2: Used as temporary.
   Label done;
 
   // Probe the dictionary.
-  NameDictionaryLookupStub::GeneratePositiveLookup(masm,
-                                                   miss,
-                                                   &done,
-                                                   elements,
-                                                   name,
-                                                   scratch1,
-                                                   scratch2);
+  NameDictionaryLookupStub::GeneratePositiveLookup(masm, miss, &done, elements,
+                                                   name, scratch1, scratch2);
 
   // If probing finds an entry check that the value is a normal
   // property.
   __ bind(&done);  // scratch2 == elements + 4 * index
-  const int kElementsStartOffset = NameDictionary::kHeaderSize +
+  const int kElementsStartOffset =
+      NameDictionary::kHeaderSize +
       NameDictionary::kElementsStartIndex * kPointerSize;
   const int kDetailsOffset = kElementsStartOffset + 2 * kPointerSize;
-  __ ldr(scratch1, FieldMemOperand(scratch2, kDetailsOffset));
-  __ tst(scratch1, Operand(PropertyDetails::TypeField::kMask << kSmiTagSize));
-  __ b(ne, miss);
+  __ LoadP(scratch1, FieldMemOperand(scratch2, kDetailsOffset));
+  __ mr(r0, scratch2);
+  __ LoadSmiLiteral(scratch2, Smi::FromInt(PropertyDetails::TypeField::kMask));
+  __ and_(scratch2, scratch1, scratch2, SetRC);
+  __ bne(miss, cr0);
+  __ mr(scratch2, r0);
 
   // Get the value at the masked, scaled index and return.
-  __ ldr(result,
-         FieldMemOperand(scratch2, kElementsStartOffset + 1 * kPointerSize));
+  __ LoadP(result,
+           FieldMemOperand(scratch2, kElementsStartOffset + 1 * kPointerSize));
 }
 
 
 // Helper function used from StoreIC::GenerateNormal.
 //
 // elements: Property dictionary. It is not clobbered if a jump to the miss
 //           label is done.
 // name:     Property name. It is not clobbered if a jump to the miss label is
 //           done
 // value:    The value to store.
 // The two scratch registers need to be different from elements, name and
 // result.
 // The generated code assumes that the receiver has slow properties,
 // is not a global object and does not have interceptors.
-static void GenerateDictionaryStore(MacroAssembler* masm,
-                                    Label* miss,
-                                    Register elements,
-                                    Register name,
-                                    Register value,
-                                    Register scratch1,
+static void GenerateDictionaryStore(MacroAssembler* masm, Label* miss,
+                                    Register elements, Register name,
+                                    Register value, Register scratch1,
                                     Register scratch2) {
   // Main use of the scratch registers.
   // scratch1: Used as temporary and to hold the capacity of the property
   //           dictionary.
   // scratch2: Used as temporary.
   Label done;
 
   // Probe the dictionary.
-  NameDictionaryLookupStub::GeneratePositiveLookup(masm,
-                                                   miss,
-                                                   &done,
-                                                   elements,
-                                                   name,
-                                                   scratch1,
-                                                   scratch2);
+  NameDictionaryLookupStub::GeneratePositiveLookup(masm, miss, &done, elements,
+                                                   name, scratch1, scratch2);
 
   // If probing finds an entry in the dictionary check that the value
   // is a normal property that is not read only.
   __ bind(&done);  // scratch2 == elements + 4 * index
-  const int kElementsStartOffset = NameDictionary::kHeaderSize +
+  const int kElementsStartOffset =
+      NameDictionary::kHeaderSize +
       NameDictionary::kElementsStartIndex * kPointerSize;
   const int kDetailsOffset = kElementsStartOffset + 2 * kPointerSize;
-  const int kTypeAndReadOnlyMask =
-      (PropertyDetails::TypeField::kMask |
-       PropertyDetails::AttributesField::encode(READ_ONLY)) << kSmiTagSize;
-  __ ldr(scratch1, FieldMemOperand(scratch2, kDetailsOffset));
-  __ tst(scratch1, Operand(kTypeAndReadOnlyMask));
-  __ b(ne, miss);
+  int kTypeAndReadOnlyMask =
+      PropertyDetails::TypeField::kMask |
+      PropertyDetails::AttributesField::encode(READ_ONLY);
+  __ LoadP(scratch1, FieldMemOperand(scratch2, kDetailsOffset));
+  __ mr(r0, scratch2);
+  __ LoadSmiLiteral(scratch2, Smi::FromInt(kTypeAndReadOnlyMask));
+  __ and_(scratch2, scratch1, scratch2, SetRC);
+  __ bne(miss, cr0);
+  __ mr(scratch2, r0);
 
   // Store the value at the masked, scaled index and return.
   const int kValueOffset = kElementsStartOffset + kPointerSize;
-  __ add(scratch2, scratch2, Operand(kValueOffset - kHeapObjectTag));
-  __ str(value, MemOperand(scratch2));
+  __ addi(scratch2, scratch2, Operand(kValueOffset - kHeapObjectTag));
+  __ StoreP(value, MemOperand(scratch2));
 
   // Update the write barrier. Make sure not to clobber the value.
-  __ mov(scratch1, value);
-  __ RecordWrite(
-      elements, scratch2, scratch1, kLRHasNotBeenSaved, kDontSaveFPRegs);
+  __ mr(scratch1, value);
+  __ RecordWrite(elements, scratch2, scratch1, kLRHasNotBeenSaved,
+                 kDontSaveFPRegs);
 }
 
 
 // Checks the receiver for special cases (value type, slow case bits).
 // Falls through for regular JS object.
 static void GenerateKeyedLoadReceiverCheck(MacroAssembler* masm,
-                                           Register receiver,
-                                           Register map,
+                                           Register receiver, Register map,
                                            Register scratch,
-                                           int interceptor_bit,
-                                           Label* slow) {
+                                           int interceptor_bit, Label* slow) {
   // Check that the object isn't a smi.
   __ JumpIfSmi(receiver, slow);
   // Get the map of the receiver.
-  __ ldr(map, FieldMemOperand(receiver, HeapObject::kMapOffset));
+  __ LoadP(map, FieldMemOperand(receiver, HeapObject::kMapOffset));
   // Check bit field.
-  __ ldrb(scratch, FieldMemOperand(map, Map::kBitFieldOffset));
-  __ tst(scratch,
-         Operand((1 << Map::kIsAccessCheckNeeded) | (1 << interceptor_bit)));
-  __ b(ne, slow);
+  __ lbz(scratch, FieldMemOperand(map, Map::kBitFieldOffset));
+  DCHECK(((1 << Map::kIsAccessCheckNeeded) | (1 << interceptor_bit)) < 0x8000);
+  __ andi(r0, scratch,
+          Operand((1 << Map::kIsAccessCheckNeeded) | (1 << interceptor_bit)));
+  __ bne(slow, cr0);
   // Check that the object is some kind of JS object EXCEPT JS Value type.
   // In the case that the object is a value-wrapper object,
   // we enter the runtime system to make sure that indexing into string
   // objects work as intended.
   DCHECK(JS_OBJECT_TYPE > JS_VALUE_TYPE);
-  __ ldrb(scratch, FieldMemOperand(map, Map::kInstanceTypeOffset));
-  __ cmp(scratch, Operand(JS_OBJECT_TYPE));
-  __ b(lt, slow);
+  __ lbz(scratch, FieldMemOperand(map, Map::kInstanceTypeOffset));
+  __ cmpi(scratch, Operand(JS_OBJECT_TYPE));
+  __ blt(slow);
 }
 
 
 // Loads an indexed element from a fast case array.
 // If not_fast_array is NULL, doesn't perform the elements map check.
-static void GenerateFastArrayLoad(MacroAssembler* masm,
-                                  Register receiver,
-                                  Register key,
-                                  Register elements,
-                                  Register scratch1,
-                                  Register scratch2,
-                                  Register result,
-                                  Label* not_fast_array,
+static void GenerateFastArrayLoad(MacroAssembler* masm, Register receiver,
+                                  Register key, Register elements,
+                                  Register scratch1, Register scratch2,
+                                  Register result, Label* not_fast_array,
                                   Label* out_of_range) {
   // Register use:
   //
   // receiver - holds the receiver on entry.
   //            Unchanged unless 'result' is the same register.
   //
   // key      - holds the smi key on entry.
   //            Unchanged unless 'result' is the same register.
   //
   // elements - holds the elements of the receiver on exit.
   //
   // result   - holds the result on exit if the load succeeded.
   //            Allowed to be the the same as 'receiver' or 'key'.
   //            Unchanged on bailout so 'receiver' and 'key' can be safely
   //            used by further computation.
   //
   // Scratch registers:
   //
   // scratch1 - used to hold elements map and elements length.
   //            Holds the elements map if not_fast_array branch is taken.
   //
   // scratch2 - used to hold the loaded value.
 
-  __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
+  __ LoadP(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
   if (not_fast_array != NULL) {
     // Check that the object is in fast mode and writable.
-    __ ldr(scratch1, FieldMemOperand(elements, HeapObject::kMapOffset));
+    __ LoadP(scratch1, FieldMemOperand(elements, HeapObject::kMapOffset));
     __ LoadRoot(ip, Heap::kFixedArrayMapRootIndex);
     __ cmp(scratch1, ip);
-    __ b(ne, not_fast_array);
+    __ bne(not_fast_array);
   } else {
     __ AssertFastElements(elements);
   }
   // Check that the key (index) is within bounds.
-  __ ldr(scratch1, FieldMemOperand(elements, FixedArray::kLengthOffset));
-  __ cmp(key, Operand(scratch1));
-  __ b(hs, out_of_range);
+  __ LoadP(scratch1, FieldMemOperand(elements, FixedArray::kLengthOffset));
+  __ cmpl(key, scratch1);
+  __ bge(out_of_range);
   // Fast case: Do the load.
-  __ add(scratch1, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-  __ ldr(scratch2, MemOperand::PointerAddressFromSmiKey(scratch1, key));
+  __ addi(scratch1, elements,
+          Operand(FixedArray::kHeaderSize - kHeapObjectTag));
+  // The key is a smi.
+  __ SmiToPtrArrayOffset(scratch2, key);
+  __ LoadPX(scratch2, MemOperand(scratch2, scratch1));
   __ LoadRoot(ip, Heap::kTheHoleValueRootIndex);
   __ cmp(scratch2, ip);
   // In case the loaded value is the_hole we have to consult GetProperty
   // to ensure the prototype chain is searched.
-  __ b(eq, out_of_range);
-  __ mov(result, scratch2);
+  __ beq(out_of_range);
+  __ mr(result, scratch2);
 }
 
 
 // Checks whether a key is an array index string or a unique name.
 // Falls through if a key is a unique name.
-static void GenerateKeyNameCheck(MacroAssembler* masm,
-                                 Register key,
-                                 Register map,
-                                 Register hash,
-                                 Label* index_string,
-                                 Label* not_unique) {
+static void GenerateKeyNameCheck(MacroAssembler* masm, Register key,
+                                 Register map, Register hash,
+                                 Label* index_string, Label* not_unique) {
   // The key is not a smi.
   Label unique;
   // Is it a name?
   __ CompareObjectType(key, map, hash, LAST_UNIQUE_NAME_TYPE);
-  __ b(hi, not_unique);
+  __ bgt(not_unique);
   STATIC_ASSERT(LAST_UNIQUE_NAME_TYPE == FIRST_NONSTRING_TYPE);
-  __ b(eq, &unique);
+  __ beq(&unique);
 
   // Is the string an array index, with cached numeric value?
-  __ ldr(hash, FieldMemOperand(key, Name::kHashFieldOffset));
-  __ tst(hash, Operand(Name::kContainsCachedArrayIndexMask));
-  __ b(eq, index_string);
+  __ lwz(hash, FieldMemOperand(key, Name::kHashFieldOffset));
+  __ mov(r8, Operand(Name::kContainsCachedArrayIndexMask));
+  __ and_(r0, hash, r8, SetRC);
+  __ beq(index_string, cr0);
 
   // Is the string internalized? We know it's a string, so a single
   // bit test is enough.
   // map: key map
-  __ ldrb(hash, FieldMemOperand(map, Map::kInstanceTypeOffset));
+  __ lbz(hash, FieldMemOperand(map, Map::kInstanceTypeOffset));
   STATIC_ASSERT(kInternalizedTag == 0);
-  __ tst(hash, Operand(kIsNotInternalizedMask));
-  __ b(ne, not_unique);
+  __ andi(r0, hash, Operand(kIsNotInternalizedMask));
+  __ bne(not_unique, cr0);
 
   __ bind(&unique);
 }
 
 
 void LoadIC::GenerateMegamorphic(MacroAssembler* masm) {
   // The return address is in lr.
   Register receiver = ReceiverRegister();
   Register name = NameRegister();
-  DCHECK(receiver.is(r1));
-  DCHECK(name.is(r2));
+  DCHECK(receiver.is(r4));
+  DCHECK(name.is(r5));
 
   // Probe the stub cache.
   Code::Flags flags = Code::RemoveTypeAndHolderFromFlags(
       Code::ComputeHandlerFlags(Code::LOAD_IC));
-  masm->isolate()->stub_cache()->GenerateProbe(
-      masm, flags, receiver, name, r3, r4, r5, r6);
+  masm->isolate()->stub_cache()->GenerateProbe(masm, flags, receiver, name, r6,
+                                               r7, r8, r9);
 
   // Cache miss: Jump to runtime.
   GenerateMiss(masm);
 }
 
 
 void LoadIC::GenerateNormal(MacroAssembler* masm) {
-  Register dictionary = r0;
+  Register dictionary = r3;
   DCHECK(!dictionary.is(ReceiverRegister()));
   DCHECK(!dictionary.is(NameRegister()));
 
   Label slow;
 
-  __ ldr(dictionary,
-         FieldMemOperand(ReceiverRegister(), JSObject::kPropertiesOffset));
-  GenerateDictionaryLoad(masm, &slow, dictionary, NameRegister(), r0, r3, r4);
+  __ LoadP(dictionary,
+           FieldMemOperand(ReceiverRegister(), JSObject::kPropertiesOffset));
+  GenerateDictionaryLoad(masm, &slow, dictionary, NameRegister(), r3, r6, r7);
   __ Ret();
 
   // Dictionary load failed, go slow (but don't miss).
   __ bind(&slow);
   GenerateRuntimeGetProperty(masm);
 }
 
 
 // A register that isn't one of the parameters to the load ic.
-static const Register LoadIC_TempRegister() { return r3; }
+static const Register LoadIC_TempRegister() { return r6; }
 
 
 void LoadIC::GenerateMiss(MacroAssembler* masm) {
   // The return address is in lr.
   Isolate* isolate = masm->isolate();
 
-  __ IncrementCounter(isolate->counters()->load_miss(), 1, r3, r4);
+  __ IncrementCounter(isolate->counters()->load_miss(), 1, r6, r7);
 
-  __ mov(LoadIC_TempRegister(), ReceiverRegister());
+  __ mr(LoadIC_TempRegister(), ReceiverRegister());
   __ Push(LoadIC_TempRegister(), NameRegister());
 
   // Perform tail call to the entry.
-  ExternalReference ref =
-      ExternalReference(IC_Utility(kLoadIC_Miss), isolate);
+  ExternalReference ref = ExternalReference(IC_Utility(kLoadIC_Miss), isolate);
   __ TailCallExternalReference(ref, 2, 1);
 }
 
 
 void LoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) {
   // The return address is in lr.
 
-  __ mov(LoadIC_TempRegister(), ReceiverRegister());
+  __ mr(LoadIC_TempRegister(), ReceiverRegister());
   __ Push(LoadIC_TempRegister(), NameRegister());
 
   __ TailCallRuntime(Runtime::kGetProperty, 2, 1);
 }
 
 
-static MemOperand GenerateMappedArgumentsLookup(MacroAssembler* masm,
-                                                Register object,
-                                                Register key,
-                                                Register scratch1,
-                                                Register scratch2,
-                                                Register scratch3,
-                                                Label* unmapped_case,
-                                                Label* slow_case) {
+static MemOperand GenerateMappedArgumentsLookup(
+    MacroAssembler* masm, Register object, Register key, Register scratch1,
+    Register scratch2, Register scratch3, Label* unmapped_case,
+    Label* slow_case) {
   Heap* heap = masm->isolate()->heap();
 
   // Check that the receiver is a JSObject. Because of the map check
   // later, we do not need to check for interceptors or whether it
   // requires access checks.
   __ JumpIfSmi(object, slow_case);
   // Check that the object is some kind of JSObject.
   __ CompareObjectType(object, scratch1, scratch2, FIRST_JS_RECEIVER_TYPE);
-  __ b(lt, slow_case);
+  __ blt(slow_case);
 
   // Check that the key is a positive smi.
-  __ tst(key, Operand(0x80000001));
-  __ b(ne, slow_case);
+  __ mov(scratch1, Operand(0x80000001));
+  __ and_(r0, key, scratch1, SetRC);
+  __ bne(slow_case, cr0);
 
   // Load the elements into scratch1 and check its map.
   Handle<Map> arguments_map(heap->sloppy_arguments_elements_map());
-  __ ldr(scratch1, FieldMemOperand(object, JSObject::kElementsOffset));
+  __ LoadP(scratch1, FieldMemOperand(object, JSObject::kElementsOffset));
   __ CheckMap(scratch1, scratch2, arguments_map, slow_case, DONT_DO_SMI_CHECK);
 
   // Check if element is in the range of mapped arguments. If not, jump
   // to the unmapped lookup with the parameter map in scratch1.
-  __ ldr(scratch2, FieldMemOperand(scratch1, FixedArray::kLengthOffset));
-  __ sub(scratch2, scratch2, Operand(Smi::FromInt(2)));
-  __ cmp(key, Operand(scratch2));
-  __ b(cs, unmapped_case);
+  __ LoadP(scratch2, FieldMemOperand(scratch1, FixedArray::kLengthOffset));
+  __ SubSmiLiteral(scratch2, scratch2, Smi::FromInt(2), r0);
+  __ cmpl(key, scratch2);
+  __ bge(unmapped_case);
 
   // Load element index and check whether it is the hole.
   const int kOffset =
       FixedArray::kHeaderSize + 2 * kPointerSize - kHeapObjectTag;
 
-  __ mov(scratch3, Operand(kPointerSize >> 1));
-  __ mul(scratch3, key, scratch3);
-  __ add(scratch3, scratch3, Operand(kOffset));
+  __ SmiToPtrArrayOffset(scratch3, key);
+  __ addi(scratch3, scratch3, Operand(kOffset));
 
-  __ ldr(scratch2, MemOperand(scratch1, scratch3));
+  __ LoadPX(scratch2, MemOperand(scratch1, scratch3));
   __ LoadRoot(scratch3, Heap::kTheHoleValueRootIndex);
   __ cmp(scratch2, scratch3);
-  __ b(eq, unmapped_case);
+  __ beq(unmapped_case);
 
   // Load value from context and return it. We can reuse scratch1 because
   // we do not jump to the unmapped lookup (which requires the parameter
   // map in scratch1).
-  __ ldr(scratch1, FieldMemOperand(scratch1, FixedArray::kHeaderSize));
-  __ mov(scratch3, Operand(kPointerSize >> 1));
-  __ mul(scratch3, scratch2, scratch3);
-  __ add(scratch3, scratch3, Operand(Context::kHeaderSize - kHeapObjectTag));
+  __ LoadP(scratch1, FieldMemOperand(scratch1, FixedArray::kHeaderSize));
+  __ SmiToPtrArrayOffset(scratch3, scratch2);
+  __ addi(scratch3, scratch3, Operand(Context::kHeaderSize - kHeapObjectTag));
   return MemOperand(scratch1, scratch3);
 }
 
 
 static MemOperand GenerateUnmappedArgumentsLookup(MacroAssembler* masm,
                                                   Register key,
                                                   Register parameter_map,
                                                   Register scratch,
                                                   Label* slow_case) {
   // Element is in arguments backing store, which is referenced by the
   // second element of the parameter_map. The parameter_map register
   // must be loaded with the parameter map of the arguments object and is
   // overwritten.
   const int kBackingStoreOffset = FixedArray::kHeaderSize + kPointerSize;
   Register backing_store = parameter_map;
-  __ ldr(backing_store, FieldMemOperand(parameter_map, kBackingStoreOffset));
+  __ LoadP(backing_store, FieldMemOperand(parameter_map, kBackingStoreOffset));
   Handle<Map> fixed_array_map(masm->isolate()->heap()->fixed_array_map());
   __ CheckMap(backing_store, scratch, fixed_array_map, slow_case,
               DONT_DO_SMI_CHECK);
-  __ ldr(scratch, FieldMemOperand(backing_store, FixedArray::kLengthOffset));
-  __ cmp(key, Operand(scratch));
-  __ b(cs, slow_case);
-  __ mov(scratch, Operand(kPointerSize >> 1));
-  __ mul(scratch, key, scratch);
-  __ add(scratch,
-         scratch,
-         Operand(FixedArray::kHeaderSize - kHeapObjectTag));
+  __ LoadP(scratch, FieldMemOperand(backing_store, FixedArray::kLengthOffset));
+  __ cmpl(key, scratch);
+  __ bge(slow_case);
+  __ SmiToPtrArrayOffset(scratch, key);
+  __ addi(scratch, scratch, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
   return MemOperand(backing_store, scratch);
 }
 
 
 void KeyedLoadIC::GenerateSloppyArguments(MacroAssembler* masm) {
   // The return address is in lr.
   Register receiver = ReceiverRegister();
   Register key = NameRegister();
-  DCHECK(receiver.is(r1));
-  DCHECK(key.is(r2));
+  DCHECK(receiver.is(r4));
+  DCHECK(key.is(r5));
 
   Label slow, notin;
-  MemOperand mapped_location =
-      GenerateMappedArgumentsLookup(
-          masm, receiver, key, r0, r3, r4, &notin, &slow);
-  __ ldr(r0, mapped_location);
+  MemOperand mapped_location = GenerateMappedArgumentsLookup(
+      masm, receiver, key, r3, r6, r7, &notin, &slow);
+  __ LoadPX(r3, mapped_location);
   __ Ret();
   __ bind(&notin);
-  // The unmapped lookup expects that the parameter map is in r0.
+  // The unmapped lookup expects that the parameter map is in r3.
   MemOperand unmapped_location =
-      GenerateUnmappedArgumentsLookup(masm, key, r0, r3, &slow);
-  __ ldr(r0, unmapped_location);
-  __ LoadRoot(r3, Heap::kTheHoleValueRootIndex);
-  __ cmp(r0, r3);
-  __ b(eq, &slow);
+      GenerateUnmappedArgumentsLookup(masm, key, r3, r6, &slow);
+  __ LoadPX(r3, unmapped_location);
+  __ LoadRoot(r6, Heap::kTheHoleValueRootIndex);
+  __ cmp(r3, r6);
+  __ beq(&slow);
   __ Ret();
   __ bind(&slow);
   GenerateMiss(masm);
 }
 
 
 void KeyedStoreIC::GenerateSloppyArguments(MacroAssembler* masm) {
   Register receiver = ReceiverRegister();
   Register key = NameRegister();
   Register value = ValueRegister();
-  DCHECK(receiver.is(r1));
-  DCHECK(key.is(r2));
-  DCHECK(value.is(r0));
+  DCHECK(receiver.is(r4));
+  DCHECK(key.is(r5));
+  DCHECK(value.is(r3));
 
   Label slow, notin;
   MemOperand mapped_location = GenerateMappedArgumentsLookup(
-      masm, receiver, key, r3, r4, r5, &notin, &slow);
-  __ str(value, mapped_location);
-  __ add(r6, r3, r5);
-  __ mov(r9, value);
-  __ RecordWrite(r3, r6, r9, kLRHasNotBeenSaved, kDontSaveFPRegs);
+      masm, receiver, key, r6, r7, r8, &notin, &slow);
+  Register mapped_base = mapped_location.ra();
+  Register mapped_offset = mapped_location.rb();
+  __ StorePX(value, mapped_location);
+  __ add(r9, mapped_base, mapped_offset);
+  __ mr(r11, value);
+  __ RecordWrite(mapped_base, r9, r11, kLRHasNotBeenSaved, kDontSaveFPRegs);
   __ Ret();
   __ bind(&notin);
-  // The unmapped lookup expects that the parameter map is in r3.
+  // The unmapped lookup expects that the parameter map is in r6.
   MemOperand unmapped_location =
-      GenerateUnmappedArgumentsLookup(masm, key, r3, r4, &slow);
-  __ str(value, unmapped_location);
-  __ add(r6, r3, r4);
-  __ mov(r9, value);
-  __ RecordWrite(r3, r6, r9, kLRHasNotBeenSaved, kDontSaveFPRegs);
+      GenerateUnmappedArgumentsLookup(masm, key, r6, r7, &slow);
+  Register unmapped_base = unmapped_location.ra();
+  Register unmapped_offset = unmapped_location.rb();
+  __ StorePX(value, unmapped_location);
+  __ add(r9, unmapped_base, unmapped_offset);
+  __ mr(r11, value);
+  __ RecordWrite(unmapped_base, r9, r11, kLRHasNotBeenSaved, kDontSaveFPRegs);
   __ Ret();
   __ bind(&slow);
   GenerateMiss(masm);
 }
 
 
 void KeyedLoadIC::GenerateMiss(MacroAssembler* masm) {
   // The return address is in lr.
   Isolate* isolate = masm->isolate();
 
-  __ IncrementCounter(isolate->counters()->keyed_load_miss(), 1, r3, r4);
+  __ IncrementCounter(isolate->counters()->keyed_load_miss(), 1, r6, r7);
 
   __ Push(ReceiverRegister(), NameRegister());
 
   // Perform tail call to the entry.
   ExternalReference ref =
       ExternalReference(IC_Utility(kKeyedLoadIC_Miss), isolate);
 
   __ TailCallExternalReference(ref, 2, 1);
 }
 
 
 // IC register specifications
-const Register LoadIC::ReceiverRegister() { return r1; }
-const Register LoadIC::NameRegister() { return r2; }
+const Register LoadIC::ReceiverRegister() { return r4; }
+const Register LoadIC::NameRegister() { return r5; }
 
 
 const Register LoadIC::SlotRegister() {
   DCHECK(FLAG_vector_ics);
-  return r0;
+  return r3;
 }
 
 
 const Register LoadIC::VectorRegister() {
   DCHECK(FLAG_vector_ics);
-  return r3;
+  return r6;
 }
 
 
-const Register StoreIC::ReceiverRegister() { return r1; }
-const Register StoreIC::NameRegister() { return r2; }
-const Register StoreIC::ValueRegister() { return r0; }
+const Register StoreIC::ReceiverRegister() { return r4; }
+const Register StoreIC::NameRegister() { return r5; }
+const Register StoreIC::ValueRegister() { return r3; }
 
 
-const Register KeyedStoreIC::MapRegister() {
-  return r3;
-}
+const Register KeyedStoreIC::MapRegister() { return r6; }
 
 
 void KeyedLoadIC::GenerateRuntimeGetProperty(MacroAssembler* masm) {
   // The return address is in lr.
 
   __ Push(ReceiverRegister(), NameRegister());
 
   __ TailCallRuntime(Runtime::kKeyedGetProperty, 2, 1);
 }
 
 
 void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
   // The return address is in lr.
   Label slow, check_name, index_smi, index_name, property_array_property;
   Label probe_dictionary, check_number_dictionary;
 
   Register key = NameRegister();
   Register receiver = ReceiverRegister();
-  DCHECK(key.is(r2));
-  DCHECK(receiver.is(r1));
+  DCHECK(key.is(r5));
+  DCHECK(receiver.is(r4));
 
   Isolate* isolate = masm->isolate();
 
   // Check that the key is a smi.
   __ JumpIfNotSmi(key, &check_name);
   __ bind(&index_smi);
   // Now the key is known to be a smi. This place is also jumped to from below
   // where a numeric string is converted to a smi.
 
-  GenerateKeyedLoadReceiverCheck(
-      masm, receiver, r0, r3, Map::kHasIndexedInterceptor, &slow);
+  GenerateKeyedLoadReceiverCheck(masm, receiver, r3, r6,
+                                 Map::kHasIndexedInterceptor, &slow);
 
   // Check the receiver's map to see if it has fast elements.
-  __ CheckFastElements(r0, r3, &check_number_dictionary);
+  __ CheckFastElements(r3, r6, &check_number_dictionary);
 
-  GenerateFastArrayLoad(
-      masm, receiver, key, r0, r3, r4, r0, NULL, &slow);
-  __ IncrementCounter(isolate->counters()->keyed_load_generic_smi(), 1, r4, r3);
+  GenerateFastArrayLoad(masm, receiver, key, r3, r6, r7, r3, NULL, &slow);
+  __ IncrementCounter(isolate->counters()->keyed_load_generic_smi(), 1, r7, r6);
   __ Ret();
 
   __ bind(&check_number_dictionary);
-  __ ldr(r4, FieldMemOperand(receiver, JSObject::kElementsOffset));
-  __ ldr(r3, FieldMemOperand(r4, JSObject::kMapOffset));
+  __ LoadP(r7, FieldMemOperand(receiver, JSObject::kElementsOffset));
+  __ LoadP(r6, FieldMemOperand(r7, JSObject::kMapOffset));
 
   // Check whether the elements is a number dictionary.
-  // r3: elements map
-  // r4: elements
+  // r6: elements map
+  // r7: elements
   __ LoadRoot(ip, Heap::kHashTableMapRootIndex);
-  __ cmp(r3, ip);
-  __ b(ne, &slow);
-  __ SmiUntag(r0, key);
-  __ LoadFromNumberDictionary(&slow, r4, key, r0, r0, r3, r5);
+  __ cmp(r6, ip);
+  __ bne(&slow);
+  __ SmiUntag(r3, key);
+  __ LoadFromNumberDictionary(&slow, r7, key, r3, r3, r6, r8);
   __ Ret();
 
-  // Slow case, key and receiver still in r2 and r1.
+  // Slow case, key and receiver still in r3 and r4.
   __ bind(&slow);
-  __ IncrementCounter(isolate->counters()->keyed_load_generic_slow(),
-                      1, r4, r3);
+  __ IncrementCounter(isolate->counters()->keyed_load_generic_slow(), 1, r7,
+                      r6);
   GenerateRuntimeGetProperty(masm);
 
   __ bind(&check_name);
-  GenerateKeyNameCheck(masm, key, r0, r3, &index_name, &slow);
+  GenerateKeyNameCheck(masm, key, r3, r6, &index_name, &slow);
 
-  GenerateKeyedLoadReceiverCheck(
-      masm, receiver, r0, r3, Map::kHasNamedInterceptor, &slow);
+  GenerateKeyedLoadReceiverCheck(masm, receiver, r3, r6,
+                                 Map::kHasNamedInterceptor, &slow);
 
   // If the receiver is a fast-case object, check the keyed lookup
   // cache. Otherwise probe the dictionary.
-  __ ldr(r3, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
-  __ ldr(r4, FieldMemOperand(r3, HeapObject::kMapOffset));
+  __ LoadP(r6, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
+  __ LoadP(r7, FieldMemOperand(r6, HeapObject::kMapOffset));
   __ LoadRoot(ip, Heap::kHashTableMapRootIndex);
-  __ cmp(r4, ip);
-  __ b(eq, &probe_dictionary);
+  __ cmp(r7, ip);
+  __ beq(&probe_dictionary);
 
   // Load the map of the receiver, compute the keyed lookup cache hash
   // based on 32 bits of the map pointer and the name hash.
-  __ ldr(r0, FieldMemOperand(receiver, HeapObject::kMapOffset));
-  __ mov(r3, Operand(r0, ASR, KeyedLookupCache::kMapHashShift));
-  __ ldr(r4, FieldMemOperand(key, Name::kHashFieldOffset));
-  __ eor(r3, r3, Operand(r4, ASR, Name::kHashShift));
+  __ LoadP(r3, FieldMemOperand(receiver, HeapObject::kMapOffset));
+  __ srawi(r6, r3, KeyedLookupCache::kMapHashShift);
+  __ lwz(r7, FieldMemOperand(key, Name::kHashFieldOffset));
+  __ srawi(r7, r7, Name::kHashShift);
+  __ xor_(r6, r6, r7);
   int mask = KeyedLookupCache::kCapacityMask & KeyedLookupCache::kHashMask;
-  __ And(r3, r3, Operand(mask));
+  __ mov(r7, Operand(mask));
+  __ and_(r6, r6, r7, LeaveRC);
 
   // Load the key (consisting of map and unique name) from the cache and
   // check for match.
   Label load_in_object_property;
   static const int kEntriesPerBucket = KeyedLookupCache::kEntriesPerBucket;
   Label hit_on_nth_entry[kEntriesPerBucket];
   ExternalReference cache_keys =
       ExternalReference::keyed_lookup_cache_keys(isolate);
 
-  __ mov(r4, Operand(cache_keys));
-  __ add(r4, r4, Operand(r3, LSL, kPointerSizeLog2 + 1));
+  __ mov(r7, Operand(cache_keys));
+  __ mr(r0, r5);
+  __ ShiftLeftImm(r5, r6, Operand(kPointerSizeLog2 + 1));
+  __ add(r7, r7, r5);
+  __ mr(r5, r0);
 
   for (int i = 0; i < kEntriesPerBucket - 1; i++) {
     Label try_next_entry;
-    // Load map and move r4 to next entry.
-    __ ldr(r5, MemOperand(r4, kPointerSize * 2, PostIndex));
-    __ cmp(r0, r5);
-    __ b(ne, &try_next_entry);
-    __ ldr(r5, MemOperand(r4, -kPointerSize));  // Load name
-    __ cmp(key, r5);
-    __ b(eq, &hit_on_nth_entry[i]);
+    // Load map and move r7 to next entry.
+    __ LoadP(r8, MemOperand(r7));
+    __ addi(r7, r7, Operand(kPointerSize * 2));
+    __ cmp(r3, r8);
+    __ bne(&try_next_entry);
+    __ LoadP(r8, MemOperand(r7, -kPointerSize));  // Load name
+    __ cmp(key, r8);
+    __ beq(&hit_on_nth_entry[i]);
     __ bind(&try_next_entry);
   }
 
-  // Last entry: Load map and move r4 to name.
-  __ ldr(r5, MemOperand(r4, kPointerSize, PostIndex));
-  __ cmp(r0, r5);
-  __ b(ne, &slow);
-  __ ldr(r5, MemOperand(r4));
-  __ cmp(key, r5);
-  __ b(ne, &slow);
+  // Last entry: Load map and move r7 to name.
+  __ LoadP(r8, MemOperand(r7));
+  __ addi(r7, r7, Operand(kPointerSize));
+  __ cmp(r3, r8);
+  __ bne(&slow);
+  __ LoadP(r8, MemOperand(r7));
+  __ cmp(key, r8);
+  __ bne(&slow);
 
   // Get field offset.
-  // r0     : receiver's map
-  // r3     : lookup cache index
+  // r3     : receiver's map
+  // r6     : lookup cache index
   ExternalReference cache_field_offsets =
       ExternalReference::keyed_lookup_cache_field_offsets(isolate);
 
   // Hit on nth entry.
   for (int i = kEntriesPerBucket - 1; i >= 0; i--) {
     __ bind(&hit_on_nth_entry[i]);
-    __ mov(r4, Operand(cache_field_offsets));
+    __ mov(r7, Operand(cache_field_offsets));
     if (i != 0) {
-      __ add(r3, r3, Operand(i));
+      __ addi(r6, r6, Operand(i));
     }
-    __ ldr(r5, MemOperand(r4, r3, LSL, kPointerSizeLog2));
-    __ ldrb(r6, FieldMemOperand(r0, Map::kInObjectPropertiesOffset));
-    __ sub(r5, r5, r6, SetCC);
-    __ b(ge, &property_array_property);
+    __ ShiftLeftImm(r8, r6, Operand(2));
+    __ lwzx(r8, MemOperand(r8, r7));
+    __ lbz(r9, FieldMemOperand(r3, Map::kInObjectPropertiesOffset));
+    __ sub(r8, r8, r9);
+    __ cmpi(r8, Operand::Zero());
+    __ bge(&property_array_property);
     if (i != 0) {
-      __ jmp(&load_in_object_property);
+      __ b(&load_in_object_property);
     }
   }
 
   // Load in-object property.
   __ bind(&load_in_object_property);
-  __ ldrb(r6, FieldMemOperand(r0, Map::kInstanceSizeOffset));
-  __ add(r6, r6, r5);  // Index from start of object.
-  __ sub(receiver, receiver, Operand(kHeapObjectTag));  // Remove the heap tag.
-  __ ldr(r0, MemOperand(receiver, r6, LSL, kPointerSizeLog2));
-  __ IncrementCounter(isolate->counters()->keyed_load_generic_lookup_cache(),
-                      1, r4, r3);
+  __ lbz(r9, FieldMemOperand(r3, Map::kInstanceSizeOffset));
+  __ add(r9, r9, r8);  // Index from start of object.
+  __ subi(receiver, receiver, Operand(kHeapObjectTag));  // Remove the heap tag.
+  __ ShiftLeftImm(r3, r9, Operand(kPointerSizeLog2));
+  __ LoadPX(r3, MemOperand(r3, receiver));
+  __ IncrementCounter(isolate->counters()->keyed_load_generic_lookup_cache(), 1,
+                      r7, r6);
   __ Ret();
 
   // Load property array property.
   __ bind(&property_array_property);
-  __ ldr(receiver, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
-  __ add(receiver, receiver, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-  __ ldr(r0, MemOperand(receiver, r5, LSL, kPointerSizeLog2));
-  __ IncrementCounter(isolate->counters()->keyed_load_generic_lookup_cache(),
-                      1, r4, r3);
+  __ LoadP(receiver, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
+  __ addi(receiver, receiver,
+          Operand(FixedArray::kHeaderSize - kHeapObjectTag));
+  __ ShiftLeftImm(r3, r8, Operand(kPointerSizeLog2));
+  __ LoadPX(r3, MemOperand(r3, receiver));
+  __ IncrementCounter(isolate->counters()->keyed_load_generic_lookup_cache(), 1,
+                      r7, r6);
   __ Ret();
 
   // Do a quick inline probe of the receiver's dictionary, if it
   // exists.
   __ bind(&probe_dictionary);
-  // r3: elements
-  __ ldr(r0, FieldMemOperand(receiver, HeapObject::kMapOffset));
-  __ ldrb(r0, FieldMemOperand(r0, Map::kInstanceTypeOffset));
-  GenerateGlobalInstanceTypeCheck(masm, r0, &slow);
-  // Load the property to r0.
-  GenerateDictionaryLoad(masm, &slow, r3, key, r0, r5, r4);
-  __ IncrementCounter(
-      isolate->counters()->keyed_load_generic_symbol(), 1, r4, r3);
+  // r6: elements
+  __ LoadP(r3, FieldMemOperand(receiver, HeapObject::kMapOffset));
+  __ lbz(r3, FieldMemOperand(r3, Map::kInstanceTypeOffset));
+  GenerateGlobalInstanceTypeCheck(masm, r3, &slow);
+  // Load the property to r3.
+  GenerateDictionaryLoad(masm, &slow, r6, key, r3, r8, r7);
+  __ IncrementCounter(isolate->counters()->keyed_load_generic_symbol(), 1, r7,
+                      r6);
   __ Ret();
 
   __ bind(&index_name);
-  __ IndexFromHash(r3, key);
+  __ IndexFromHash(r6, key);
   // Now jump to the place where smi keys are handled.
-  __ jmp(&index_smi);
+  __ b(&index_smi);
 }
 
 
 void KeyedLoadIC::GenerateString(MacroAssembler* masm) {
   // Return address is in lr.
   Label miss;
 
   Register receiver = ReceiverRegister();
   Register index = NameRegister();
-  Register scratch = r3;
-  Register result = r0;
+  Register scratch = r6;
+  Register result = r3;
   DCHECK(!scratch.is(receiver) && !scratch.is(index));
 
-  StringCharAtGenerator char_at_generator(receiver,
-                                          index,
-                                          scratch,
-                                          result,
+  StringCharAtGenerator char_at_generator(receiver, index, scratch, result,
                                           &miss,  // When not a string.
                                           &miss,  // When not a number.
                                           &miss,  // When index out of range.
                                           STRING_INDEX_IS_ARRAY_INDEX);
   char_at_generator.GenerateFast(masm);
   __ Ret();
 
   StubRuntimeCallHelper call_helper;
   char_at_generator.GenerateSlow(masm, call_helper);
 
   __ bind(&miss);
   GenerateMiss(masm);
 }
 
 
 void KeyedLoadIC::GenerateIndexedInterceptor(MacroAssembler* masm) {
   // Return address is in lr.
   Label slow;
 
   Register receiver = ReceiverRegister();
   Register key = NameRegister();
-  Register scratch1 = r3;
-  Register scratch2 = r4;
+  Register scratch1 = r6;
+  Register scratch2 = r7;
   DCHECK(!scratch1.is(receiver) && !scratch1.is(key));
   DCHECK(!scratch2.is(receiver) && !scratch2.is(key));
 
   // Check that the receiver isn't a smi.
   __ JumpIfSmi(receiver, &slow);
 
   // Check that the key is an array index, that is Uint32.
-  __ NonNegativeSmiTst(key);
-  __ b(ne, &slow);
+  __ TestIfPositiveSmi(key, r0);
+  __ bne(&slow, cr0);
 
   // Get the map of the receiver.
-  __ ldr(scratch1, FieldMemOperand(receiver, HeapObject::kMapOffset));
+  __ LoadP(scratch1, FieldMemOperand(receiver, HeapObject::kMapOffset));
 
   // Check that it has indexed interceptor and access checks
   // are not enabled for this object.
-  __ ldrb(scratch2, FieldMemOperand(scratch1, Map::kBitFieldOffset));
-  __ and_(scratch2, scratch2, Operand(kSlowCaseBitFieldMask));
-  __ cmp(scratch2, Operand(1 << Map::kHasIndexedInterceptor));
-  __ b(ne, &slow);
+  __ lbz(scratch2, FieldMemOperand(scratch1, Map::kBitFieldOffset));
+  __ andi(scratch2, scratch2, Operand(kSlowCaseBitFieldMask));
+  __ cmpi(scratch2, Operand(1 << Map::kHasIndexedInterceptor));
+  __ bne(&slow);
 
   // Everything is fine, call runtime.
   __ Push(receiver, key);  // Receiver, key.
 
   // Perform tail call to the entry.
   __ TailCallExternalReference(
       ExternalReference(IC_Utility(kLoadElementWithInterceptor),
                         masm->isolate()),
       2, 1);
 
@@ skipping 34 matching lines @@
       ExternalReference(IC_Utility(kKeyedStoreIC_Slow), masm->isolate());
   __ TailCallExternalReference(ref, 3, 1);
 }
 
 
 void KeyedStoreIC::GenerateRuntimeSetProperty(MacroAssembler* masm,
                                               StrictMode strict_mode) {
   // Push receiver, key and value for runtime call.
   __ Push(ReceiverRegister(), NameRegister(), ValueRegister());
 
-  __ mov(r0, Operand(Smi::FromInt(strict_mode)));   // Strict mode.
-  __ Push(r0);
+  __ LoadSmiLiteral(r3, Smi::FromInt(strict_mode));  // Strict mode.
+  __ Push(r3);
 
   __ TailCallRuntime(Runtime::kSetProperty, 4, 1);
 }
 
 
 static void KeyedStoreGenerateGenericHelper(
-    MacroAssembler* masm,
-    Label* fast_object,
-    Label* fast_double,
-    Label* slow,
-    KeyedStoreCheckMap check_map,
-    KeyedStoreIncrementLength increment_length,
-    Register value,
-    Register key,
-    Register receiver,
-    Register receiver_map,
-    Register elements_map,
-    Register elements) {
+    MacroAssembler* masm, Label* fast_object, Label* fast_double, Label* slow,
+    KeyedStoreCheckMap check_map, KeyedStoreIncrementLength increment_length,
+    Register value, Register key, Register receiver, Register receiver_map,
+    Register elements_map, Register elements) {
   Label transition_smi_elements;
   Label finish_object_store, non_double_value, transition_double_elements;
   Label fast_double_without_map_check;
 
   // Fast case: Do the store, could be either Object or double.
   __ bind(fast_object);
-  Register scratch_value = r4;
-  Register address = r5;
+  Register scratch_value = r7;
+  Register address = r8;
   if (check_map == kCheckMap) {
-    __ ldr(elements_map, FieldMemOperand(elements, HeapObject::kMapOffset));
-    __ cmp(elements_map,
+    __ LoadP(elements_map, FieldMemOperand(elements, HeapObject::kMapOffset));
+    __ mov(scratch_value,
            Operand(masm->isolate()->factory()->fixed_array_map()));
-    __ b(ne, fast_double);
+    __ cmp(elements_map, scratch_value);
+    __ bne(fast_double);
   }
 
   // HOLECHECK: guards "A[i] = V"
   // We have to go to the runtime if the current value is the hole because
   // there may be a callback on the element
   Label holecheck_passed1;
-  __ add(address, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-  __ ldr(scratch_value,
-         MemOperand::PointerAddressFromSmiKey(address, key, PreIndex));
-  __ cmp(scratch_value, Operand(masm->isolate()->factory()->the_hole_value()));
-  __ b(ne, &holecheck_passed1);
+  __ addi(address, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
+  __ SmiToPtrArrayOffset(scratch_value, key);
+  __ LoadPX(scratch_value, MemOperand(address, scratch_value));
+  __ Cmpi(scratch_value, Operand(masm->isolate()->factory()->the_hole_value()),
+          r0);
+  __ bne(&holecheck_passed1);
   __ JumpIfDictionaryInPrototypeChain(receiver, elements_map, scratch_value,
                                       slow);
 
   __ bind(&holecheck_passed1);
 
   // Smi stores don't require further checks.
   Label non_smi_value;
   __ JumpIfNotSmi(value, &non_smi_value);
 
   if (increment_length == kIncrementLength) {
     // Add 1 to receiver->length.
-    __ add(scratch_value, key, Operand(Smi::FromInt(1)));
-    __ str(scratch_value, FieldMemOperand(receiver, JSArray::kLengthOffset));
+    __ AddSmiLiteral(scratch_value, key, Smi::FromInt(1), r0);
+    __ StoreP(scratch_value, FieldMemOperand(receiver, JSArray::kLengthOffset),
+              r0);
   }
   // It's irrelevant whether array is smi-only or not when writing a smi.
-  __ add(address, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-  __ str(value, MemOperand::PointerAddressFromSmiKey(address, key));
+  __ addi(address, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
+  __ SmiToPtrArrayOffset(scratch_value, key);
+  __ StorePX(value, MemOperand(address, scratch_value));
   __ Ret();
 
   __ bind(&non_smi_value);
   // Escape to elements kind transition case.
   __ CheckFastObjectElements(receiver_map, scratch_value,
                              &transition_smi_elements);
 
   // Fast elements array, store the value to the elements backing store.
   __ bind(&finish_object_store);
   if (increment_length == kIncrementLength) {
     // Add 1 to receiver->length.
-    __ add(scratch_value, key, Operand(Smi::FromInt(1)));
-    __ str(scratch_value, FieldMemOperand(receiver, JSArray::kLengthOffset));
+    __ AddSmiLiteral(scratch_value, key, Smi::FromInt(1), r0);
+    __ StoreP(scratch_value, FieldMemOperand(receiver, JSArray::kLengthOffset),
+              r0);
   }
-  __ add(address, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
-  __ add(address, address, Operand::PointerOffsetFromSmiKey(key));
-  __ str(value, MemOperand(address));
+  __ addi(address, elements, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
+  __ SmiToPtrArrayOffset(scratch_value, key);
+  __ StorePUX(value, MemOperand(address, scratch_value));
   // Update write barrier for the elements array address.
-  __ mov(scratch_value, value);  // Preserve the value which is returned.
-  __ RecordWrite(elements,
-                 address,
-                 scratch_value,
-                 kLRHasNotBeenSaved,
-                 kDontSaveFPRegs,
-                 EMIT_REMEMBERED_SET,
-                 OMIT_SMI_CHECK);
+  __ mr(scratch_value, value);  // Preserve the value which is returned.
+  __ RecordWrite(elements, address, scratch_value, kLRHasNotBeenSaved,
+                 kDontSaveFPRegs, EMIT_REMEMBERED_SET, OMIT_SMI_CHECK);
   __ Ret();
 
   __ bind(fast_double);
   if (check_map == kCheckMap) {
     // Check for fast double array case. If this fails, call through to the
     // runtime.
     __ CompareRoot(elements_map, Heap::kFixedDoubleArrayMapRootIndex);
-    __ b(ne, slow);
+    __ bne(slow);
   }
 
   // HOLECHECK: guards "A[i] double hole?"
   // We have to see if the double version of the hole is present. If so
   // go to the runtime.
-  __ add(address, elements,
-         Operand((FixedDoubleArray::kHeaderSize + sizeof(kHoleNanLower32))
-                 - kHeapObjectTag));
-  __ ldr(scratch_value,
-         MemOperand(address, key, LSL, kPointerSizeLog2, PreIndex));
-  __ cmp(scratch_value, Operand(kHoleNanUpper32));
-  __ b(ne, &fast_double_without_map_check);
+  __ addi(address, elements,
+          Operand((FixedDoubleArray::kHeaderSize + Register::kExponentOffset -
+                   kHeapObjectTag)));
+  __ SmiToDoubleArrayOffset(scratch_value, key);
+  __ lwzx(scratch_value, MemOperand(address, scratch_value));
+  __ Cmpi(scratch_value, Operand(kHoleNanUpper32), r0);
+  __ bne(&fast_double_without_map_check);
   __ JumpIfDictionaryInPrototypeChain(receiver, elements_map, scratch_value,
                                       slow);
 
   __ bind(&fast_double_without_map_check);
-  __ StoreNumberToDoubleElements(value, key, elements, r3, d0,
+  __ StoreNumberToDoubleElements(value, key, elements, r6, d0,
                                  &transition_double_elements);
   if (increment_length == kIncrementLength) {
     // Add 1 to receiver->length.
-    __ add(scratch_value, key, Operand(Smi::FromInt(1)));
-    __ str(scratch_value, FieldMemOperand(receiver, JSArray::kLengthOffset));
+    __ AddSmiLiteral(scratch_value, key, Smi::FromInt(1), r0);
+    __ StoreP(scratch_value, FieldMemOperand(receiver, JSArray::kLengthOffset),
+              r0);
   }
   __ Ret();
 
   __ bind(&transition_smi_elements);
   // Transition the array appropriately depending on the value type.
-  __ ldr(r4, FieldMemOperand(value, HeapObject::kMapOffset));
-  __ CompareRoot(r4, Heap::kHeapNumberMapRootIndex);
-  __ b(ne, &non_double_value);
+  __ LoadP(r7, FieldMemOperand(value, HeapObject::kMapOffset));
+  __ CompareRoot(r7, Heap::kHeapNumberMapRootIndex);
+  __ bne(&non_double_value);
 
   // Value is a double. Transition FAST_SMI_ELEMENTS ->
   // FAST_DOUBLE_ELEMENTS and complete the store.
-  __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS,
-                                         FAST_DOUBLE_ELEMENTS,
-                                         receiver_map,
-                                         r4,
-                                         slow);
-  AllocationSiteMode mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS,
-                                                    FAST_DOUBLE_ELEMENTS);
-  ElementsTransitionGenerator::GenerateSmiToDouble(
-      masm, receiver, key, value, receiver_map, mode, slow);
-  __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
-  __ jmp(&fast_double_without_map_check);
+  __ LoadTransitionedArrayMapConditional(
+      FAST_SMI_ELEMENTS, FAST_DOUBLE_ELEMENTS, receiver_map, r7, slow);
+  AllocationSiteMode mode =
+      AllocationSite::GetMode(FAST_SMI_ELEMENTS, FAST_DOUBLE_ELEMENTS);
+  ElementsTransitionGenerator::GenerateSmiToDouble(masm, receiver, key, value,
+                                                   receiver_map, mode, slow);
+  __ LoadP(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
+  __ b(&fast_double_without_map_check);
 
   __ bind(&non_double_value);
   // Value is not a double, FAST_SMI_ELEMENTS -> FAST_ELEMENTS
-  __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS,
-                                         FAST_ELEMENTS,
-                                         receiver_map,
-                                         r4,
-                                         slow);
+  __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, FAST_ELEMENTS,
+                                         receiver_map, r7, slow);
   mode = AllocationSite::GetMode(FAST_SMI_ELEMENTS, FAST_ELEMENTS);
   ElementsTransitionGenerator::GenerateMapChangeElementsTransition(
       masm, receiver, key, value, receiver_map, mode, slow);
-  __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
-  __ jmp(&finish_object_store);
+  __ LoadP(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
+  __ b(&finish_object_store);
 
   __ bind(&transition_double_elements);
   // Elements are FAST_DOUBLE_ELEMENTS, but value is an Object that's not a
   // HeapNumber. Make sure that the receiver is a Array with FAST_ELEMENTS and
   // transition array from FAST_DOUBLE_ELEMENTS to FAST_ELEMENTS
-  __ LoadTransitionedArrayMapConditional(FAST_DOUBLE_ELEMENTS,
-                                         FAST_ELEMENTS,
-                                         receiver_map,
-                                         r4,
-                                         slow);
+  __ LoadTransitionedArrayMapConditional(FAST_DOUBLE_ELEMENTS, FAST_ELEMENTS,
+                                         receiver_map, r7, slow);
   mode = AllocationSite::GetMode(FAST_DOUBLE_ELEMENTS, FAST_ELEMENTS);
   ElementsTransitionGenerator::GenerateDoubleToObject(
       masm, receiver, key, value, receiver_map, mode, slow);
-  __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
-  __ jmp(&finish_object_store);
+  __ LoadP(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
+  __ b(&finish_object_store);
 }
 
 
 void KeyedStoreIC::GenerateGeneric(MacroAssembler* masm,
                                    StrictMode strict_mode) {
   // ---------- S t a t e --------------
-  //  -- r0     : value
-  //  -- r1     : key
-  //  -- r2     : receiver
+  //  -- r3     : value
+  //  -- r4     : key
+  //  -- r5     : receiver
   //  -- lr     : return address
   // -----------------------------------
   Label slow, fast_object, fast_object_grow;
   Label fast_double, fast_double_grow;
   Label array, extra, check_if_double_array;
 
   // Register usage.
   Register value = ValueRegister();
   Register key = NameRegister();
   Register receiver = ReceiverRegister();
-  DCHECK(receiver.is(r1));
-  DCHECK(key.is(r2));
-  DCHECK(value.is(r0));
-  Register receiver_map = r3;
-  Register elements_map = r6;
-  Register elements = r9;  // Elements array of the receiver.
-  // r4 and r5 are used as general scratch registers.
+  DCHECK(receiver.is(r4));
+  DCHECK(key.is(r5));
+  DCHECK(value.is(r3));
+  Register receiver_map = r6;
+  Register elements_map = r9;
+  Register elements = r10;  // Elements array of the receiver.
+  // r7 and r8 are used as general scratch registers.
 
   // Check that the key is a smi.
   __ JumpIfNotSmi(key, &slow);
   // Check that the object isn't a smi.
   __ JumpIfSmi(receiver, &slow);
   // Get the map of the object.
-  __ ldr(receiver_map, FieldMemOperand(receiver, HeapObject::kMapOffset));
+  __ LoadP(receiver_map, FieldMemOperand(receiver, HeapObject::kMapOffset));
   // Check that the receiver does not require access checks and is not observed.
   // The generic stub does not perform map checks or handle observed objects.
-  __ ldrb(ip, FieldMemOperand(receiver_map, Map::kBitFieldOffset));
-  __ tst(ip, Operand(1 << Map::kIsAccessCheckNeeded | 1 << Map::kIsObserved));
-  __ b(ne, &slow);
+  __ lbz(ip, FieldMemOperand(receiver_map, Map::kBitFieldOffset));
+  __ andi(r0, ip,
+          Operand(1 << Map::kIsAccessCheckNeeded | 1 << Map::kIsObserved));
+  __ bne(&slow, cr0);
   // Check if the object is a JS array or not.
-  __ ldrb(r4, FieldMemOperand(receiver_map, Map::kInstanceTypeOffset));
-  __ cmp(r4, Operand(JS_ARRAY_TYPE));
-  __ b(eq, &array);
+  __ lbz(r7, FieldMemOperand(receiver_map, Map::kInstanceTypeOffset));
+  __ cmpi(r7, Operand(JS_ARRAY_TYPE));
+  __ beq(&array);
   // Check that the object is some kind of JSObject.
-  __ cmp(r4, Operand(FIRST_JS_OBJECT_TYPE));
-  __ b(lt, &slow);
+  __ cmpi(r7, Operand(FIRST_JS_OBJECT_TYPE));
+  __ blt(&slow);
 
   // Object case: Check key against length in the elements array.
-  __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
+  __ LoadP(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
   // Check array bounds. Both the key and the length of FixedArray are smis.
-  __ ldr(ip, FieldMemOperand(elements, FixedArray::kLengthOffset));
-  __ cmp(key, Operand(ip));
-  __ b(lo, &fast_object);
+  __ LoadP(ip, FieldMemOperand(elements, FixedArray::kLengthOffset));
+  __ cmpl(key, ip);
+  __ blt(&fast_object);
 
   // Slow case, handle jump to runtime.
   __ bind(&slow);
   // Entry registers are intact.
-  // r0: value.
-  // r1: key.
-  // r2: receiver.
+  // r3: value.
+  // r4: key.
+  // r5: receiver.
   GenerateRuntimeSetProperty(masm, strict_mode);
 
   // Extra capacity case: Check if there is extra capacity to
   // perform the store and update the length. Used for adding one
   // element to the array by writing to array[array.length].
   __ bind(&extra);
   // Condition code from comparing key and array length is still available.
-  __ b(ne, &slow);  // Only support writing to writing to array[array.length].
+  __ bne(&slow);  // Only support writing to writing to array[array.length].
   // Check for room in the elements backing store.
   // Both the key and the length of FixedArray are smis.
-  __ ldr(ip, FieldMemOperand(elements, FixedArray::kLengthOffset));
-  __ cmp(key, Operand(ip));
-  __ b(hs, &slow);
-  __ ldr(elements_map, FieldMemOperand(elements, HeapObject::kMapOffset));
-  __ cmp(elements_map,
-         Operand(masm->isolate()->factory()->fixed_array_map()));
-  __ b(ne, &check_if_double_array);
-  __ jmp(&fast_object_grow);
+  __ LoadP(ip, FieldMemOperand(elements, FixedArray::kLengthOffset));
+  __ cmpl(key, ip);
+  __ bge(&slow);
+  __ LoadP(elements_map, FieldMemOperand(elements, HeapObject::kMapOffset));
+  __ mov(ip, Operand(masm->isolate()->factory()->fixed_array_map()));
+  __ cmp(elements_map, ip);  // PPC - I think I can re-use ip here
+  __ bne(&check_if_double_array);
+  __ b(&fast_object_grow);
 
   __ bind(&check_if_double_array);
-  __ cmp(elements_map,
-         Operand(masm->isolate()->factory()->fixed_double_array_map()));
-  __ b(ne, &slow);
-  __ jmp(&fast_double_grow);
+  __ mov(ip, Operand(masm->isolate()->factory()->fixed_double_array_map()));
+  __ cmp(elements_map, ip);  // PPC - another ip re-use
+  __ bne(&slow);
+  __ b(&fast_double_grow);
 
   // Array case: Get the length and the elements array from the JS
   // array. Check that the array is in fast mode (and writable); if it
   // is the length is always a smi.
   __ bind(&array);
-  __ ldr(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
+  __ LoadP(elements, FieldMemOperand(receiver, JSObject::kElementsOffset));
 
   // Check the key against the length in the array.
-  __ ldr(ip, FieldMemOperand(receiver, JSArray::kLengthOffset));
-  __ cmp(key, Operand(ip));
-  __ b(hs, &extra);
+  __ LoadP(ip, FieldMemOperand(receiver, JSArray::kLengthOffset));
+  __ cmpl(key, ip);
+  __ bge(&extra);
 
-  KeyedStoreGenerateGenericHelper(masm, &fast_object, &fast_double,
-                                  &slow, kCheckMap, kDontIncrementLength,
-                                  value, key, receiver, receiver_map,
-                                  elements_map, elements);
+  KeyedStoreGenerateGenericHelper(
+      masm, &fast_object, &fast_double, &slow, kCheckMap, kDontIncrementLength,
+      value, key, receiver, receiver_map, elements_map, elements);
   KeyedStoreGenerateGenericHelper(masm, &fast_object_grow, &fast_double_grow,
-                                  &slow, kDontCheckMap, kIncrementLength,
-                                  value, key, receiver, receiver_map,
-                                  elements_map, elements);
+                                  &slow, kDontCheckMap, kIncrementLength, value,
+                                  key, receiver, receiver_map, elements_map,
+                                  elements);
 }
 
 
 void StoreIC::GenerateMegamorphic(MacroAssembler* masm) {
   Register receiver = ReceiverRegister();
   Register name = NameRegister();
-  DCHECK(receiver.is(r1));
-  DCHECK(name.is(r2));
-  DCHECK(ValueRegister().is(r0));
+  DCHECK(receiver.is(r4));
+  DCHECK(name.is(r5));
+  DCHECK(ValueRegister().is(r3));
 
   // Get the receiver from the stack and probe the stub cache.
   Code::Flags flags = Code::RemoveTypeAndHolderFromFlags(
       Code::ComputeHandlerFlags(Code::STORE_IC));
 
-  masm->isolate()->stub_cache()->GenerateProbe(
-      masm, flags, receiver, name, r3, r4, r5, r6);
+  masm->isolate()->stub_cache()->GenerateProbe(masm, flags, receiver, name, r6,
+                                               r7, r8, r9);
 
   // Cache miss: Jump to runtime.
   GenerateMiss(masm);
 }
 
 
 void StoreIC::GenerateMiss(MacroAssembler* masm) {
   __ Push(ReceiverRegister(), NameRegister(), ValueRegister());
 
   // Perform tail call to the entry.
   ExternalReference ref =
       ExternalReference(IC_Utility(kStoreIC_Miss), masm->isolate());
   __ TailCallExternalReference(ref, 3, 1);
 }
 
 
 void StoreIC::GenerateNormal(MacroAssembler* masm) {
   Label miss;
   Register receiver = ReceiverRegister();
   Register name = NameRegister();
   Register value = ValueRegister();
-  Register dictionary = r3;
-  DCHECK(receiver.is(r1));
-  DCHECK(name.is(r2));
-  DCHECK(value.is(r0));
+  Register dictionary = r6;
+  DCHECK(receiver.is(r4));
+  DCHECK(name.is(r5));
+  DCHECK(value.is(r3));
 
-  __ ldr(dictionary, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
+  __ LoadP(dictionary, FieldMemOperand(receiver, JSObject::kPropertiesOffset));
 
-  GenerateDictionaryStore(masm, &miss, dictionary, name, value, r4, r5);
+  GenerateDictionaryStore(masm, &miss, dictionary, name, value, r7, r8);
   Counters* counters = masm->isolate()->counters();
-  __ IncrementCounter(counters->store_normal_hit(),
-                      1, r4, r5);
+  __ IncrementCounter(counters->store_normal_hit(), 1, r7, r8);
   __ Ret();
 
   __ bind(&miss);
-  __ IncrementCounter(counters->store_normal_miss(), 1, r4, r5);
+  __ IncrementCounter(counters->store_normal_miss(), 1, r7, r8);
   GenerateMiss(masm);
 }
 
 
 void StoreIC::GenerateRuntimeSetProperty(MacroAssembler* masm,
                                          StrictMode strict_mode) {
   __ Push(ReceiverRegister(), NameRegister(), ValueRegister());
 
-  __ mov(r0, Operand(Smi::FromInt(strict_mode)));
-  __ Push(r0);
+  __ LoadSmiLiteral(r3, Smi::FromInt(strict_mode));
+  __ Push(r3);
 
   // Do tail-call to runtime routine.
   __ TailCallRuntime(Runtime::kSetProperty, 4, 1);
 }
 
 
 #undef __
 
 
 Condition CompareIC::ComputeCondition(Token::Value op) {
@@ skipping 21 matching lines @@
   Address cmp_instruction_address =
       Assembler::return_address_from_call_start(address);
 
   // If the instruction following the call is not a cmp rx, #yyy, nothing
   // was inlined.
   Instr instr = Assembler::instr_at(cmp_instruction_address);
   return Assembler::IsCmpImmediate(instr);
 }
 
 
+//
+// This code is paired with the JumpPatchSite class in full-codegen-ppc.cc
+//
 void PatchInlinedSmiCode(Address address, InlinedSmiCheck check) {
   Address cmp_instruction_address =
       Assembler::return_address_from_call_start(address);
 
   // If the instruction following the call is not a cmp rx, #yyy, nothing
   // was inlined.
   Instr instr = Assembler::instr_at(cmp_instruction_address);
   if (!Assembler::IsCmpImmediate(instr)) {
     return;
   }
 
   // The delta to the start of the map check instruction and the
   // condition code uses at the patched jump.
   int delta = Assembler::GetCmpImmediateRawImmediate(instr);
-  delta +=
-      Assembler::GetCmpImmediateRegister(instr).code() * kOff12Mask;
+  delta += Assembler::GetCmpImmediateRegister(instr).code() * kOff16Mask;
   // If the delta is 0 the instruction is cmp r0, #0 which also signals that
   // nothing was inlined.
   if (delta == 0) {
     return;
   }
 
   if (FLAG_trace_ic) {
-    PrintF("[  patching ic at %p, cmp=%p, delta=%d\n",
-           address, cmp_instruction_address, delta);
+    PrintF("[  patching ic at %p, cmp=%p, delta=%d\n", address,
+           cmp_instruction_address, delta);
   }
 
   Address patch_address =
       cmp_instruction_address - delta * Instruction::kInstrSize;
   Instr instr_at_patch = Assembler::instr_at(patch_address);
   Instr branch_instr =
       Assembler::instr_at(patch_address + Instruction::kInstrSize);
   // This is patching a conditional "jump if not smi/jump if smi" site.
   // Enabling by changing from
-  //   cmp rx, rx
-  //   b eq/ne, <target>
+  //   cmp cr0, rx, rx
   // to
-  //   tst rx, #kSmiTagMask
-  //   b ne/eq, <target>
+  //  rlwinm(r0, value, 0, 31, 31, SetRC);
+  //  bc(label, BT/BF, 2)
   // and vice-versa to be disabled again.
   CodePatcher patcher(patch_address, 2);
-  Register reg = Assembler::GetRn(instr_at_patch);
+  Register reg = Assembler::GetRA(instr_at_patch);
   if (check == ENABLE_INLINED_SMI_CHECK) {
     DCHECK(Assembler::IsCmpRegister(instr_at_patch));
-    DCHECK_EQ(Assembler::GetRn(instr_at_patch).code(),
-              Assembler::GetRm(instr_at_patch).code());
-    patcher.masm()->tst(reg, Operand(kSmiTagMask));
+    DCHECK_EQ(Assembler::GetRA(instr_at_patch).code(),
+              Assembler::GetRB(instr_at_patch).code());
+    patcher.masm()->TestIfSmi(reg, r0);
   } else {
     DCHECK(check == DISABLE_INLINED_SMI_CHECK);
-    DCHECK(Assembler::IsTstImmediate(instr_at_patch));
-    patcher.masm()->cmp(reg, reg);
+#if V8_TARGET_ARCH_PPC64
+    DCHECK(Assembler::IsRldicl(instr_at_patch));
+#else
+    DCHECK(Assembler::IsRlwinm(instr_at_patch));
+#endif
+    patcher.masm()->cmp(reg, reg, cr0);
   }
   DCHECK(Assembler::IsBranch(branch_instr));
+
+  // Invert the logic of the branch
   if (Assembler::GetCondition(branch_instr) == eq) {
     patcher.EmitCondition(ne);
   } else {
     DCHECK(Assembler::GetCondition(branch_instr) == ne);
     patcher.EmitCondition(eq);
   }
 }
+}
+}  // namespace v8::internal
 
-
-} }  // namespace v8::internal
-
-#endif  // V8_TARGET_ARCH_ARM
+#endif  // V8_TARGET_ARCH_PPC