Contribution of PowerPC port (continuation of 422063005) - currency

src/ppc/lithium-codegen-ppc.cc

 // 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"
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/cpu-profiler.h"
@@ skipping 92 matching lines @@
 
 #ifdef DEBUG
     if (strlen(FLAG_stop_at) > 0 &&
         info_->function()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) {
       __ stop("stop_at");
     }
 #endif
 
     // r4: Callee's JS function.
     // cp: Callee's context.
-    // pp: Callee's constant pool pointer (if FLAG_enable_ool_constant_pool)
+    // pp: Callee's constant pool pointer (if enabled)
     // fp: Caller's frame pointer.
     // lr: Caller's pc.
     // ip: Our own function entry (required by the prologue)
 
     // 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_->this_has_uses() && is_sloppy(info_->language_mode()) &&
         !info_->is_native()) {
       Label ok;
@@ skipping 811 matching lines @@
   Safepoint safepoint =
       safepoints_.DefineSafepoint(masm(), kind, arguments, deopt_mode);
   for (int i = 0; i < operands->length(); i++) {
     LOperand* pointer = operands->at(i);
     if (pointer->IsStackSlot()) {
       safepoint.DefinePointerSlot(pointer->index(), zone());
     } else if (pointer->IsRegister() && (kind & Safepoint::kWithRegisters)) {
       safepoint.DefinePointerRegister(ToRegister(pointer), zone());
     }
   }
-#if V8_OOL_CONSTANT_POOL
-  if (kind & Safepoint::kWithRegisters) {
-    // Register always contains a pointer to the constant pool.
-    safepoint.DefinePointerRegister(kConstantPoolRegister, zone());
-  }
-#endif
 }
 
 
 void LCodeGen::RecordSafepoint(LPointerMap* pointers,
                                Safepoint::DeoptMode deopt_mode) {
   RecordSafepoint(pointers, Safepoint::kSimple, 0, deopt_mode);
 }
 
 
 void LCodeGen::RecordSafepoint(Safepoint::DeoptMode deopt_mode) {
@@ skipping 1820 matching lines @@
     __ LoadP(temp, FieldMemOperand(input, HeapObject::kMapOffset));
     __ lbz(temp2, FieldMemOperand(temp, Map::kInstanceTypeOffset));
     __ subi(temp2, temp2, Operand(FIRST_NONCALLABLE_SPEC_OBJECT_TYPE));
     __ cmpi(temp2, Operand(LAST_NONCALLABLE_SPEC_OBJECT_TYPE -
                            FIRST_NONCALLABLE_SPEC_OBJECT_TYPE));
     __ bgt(is_false);
   }
 
   // Now we are in the FIRST-LAST_NONCALLABLE_SPEC_OBJECT_TYPE range.
   // Check if the constructor in the map is a function.
-  __ LoadP(temp, FieldMemOperand(temp, Map::kConstructorOffset));
+  Register instance_type = ip;
+  __ GetMapConstructor(temp, temp, temp2, instance_type);
 
   // Objects with a non-function constructor have class 'Object'.
-  __ CompareObjectType(temp, temp2, temp2, JS_FUNCTION_TYPE);
+  __ cmpi(instance_type, Operand(JS_FUNCTION_TYPE));
   if (class_name->IsOneByteEqualTo(STATIC_CHAR_VECTOR("Object"))) {
     __ bne(is_true);
   } else {
     __ bne(is_false);
   }
 
   // temp now contains the constructor function. Grab the
   // instance class name from there.
   __ LoadP(temp, FieldMemOperand(temp, JSFunction::kSharedFunctionInfoOffset));
   __ LoadP(temp,
@@ skipping 282 matching lines @@
   DCHECK(ToRegister(instr->context()).is(cp));
   DCHECK(ToRegister(instr->global_object())
              .is(LoadDescriptor::ReceiverRegister()));
   DCHECK(ToRegister(instr->result()).is(r3));
 
   __ mov(LoadDescriptor::NameRegister(), Operand(instr->name()));
   if (FLAG_vector_ics) {
     EmitVectorLoadICRegisters<LLoadGlobalGeneric>(instr);
   }
   ContextualMode mode = instr->for_typeof() ? NOT_CONTEXTUAL : CONTEXTUAL;
-  Handle<Code> ic = CodeFactory::LoadIC(isolate(), mode).code();
+  Handle<Code> ic = CodeFactory::LoadICInOptimizedCode(isolate(), mode,
+                                                       PREMONOMORPHIC).code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoStoreGlobalCell(LStoreGlobalCell* instr) {
   Register value = ToRegister(instr->value());
   Register cell = scratch0();
 
   // Load the cell.
   __ mov(cell, Operand(instr->hydrogen()->cell().handle()));
@@ skipping 121 matching lines @@
 void LCodeGen::DoLoadNamedGeneric(LLoadNamedGeneric* instr) {
   DCHECK(ToRegister(instr->context()).is(cp));
   DCHECK(ToRegister(instr->object()).is(LoadDescriptor::ReceiverRegister()));
   DCHECK(ToRegister(instr->result()).is(r3));
 
   // Name is always in r5.
   __ mov(LoadDescriptor::NameRegister(), Operand(instr->name()));
   if (FLAG_vector_ics) {
     EmitVectorLoadICRegisters<LLoadNamedGeneric>(instr);
   }
-  Handle<Code> ic = CodeFactory::LoadIC(isolate(), NOT_CONTEXTUAL).code();
+  Handle<Code> ic = CodeFactory::LoadICInOptimizedCode(
+                        isolate(), NOT_CONTEXTUAL,
+                        instr->hydrogen()->initialization_state()).code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoLoadFunctionPrototype(LLoadFunctionPrototype* instr) {
   Register scratch = scratch0();
   Register function = ToRegister(instr->function());
   Register result = ToRegister(instr->result());
 
   // Get the prototype or initial map from the function.
@@ skipping 334 matching lines @@
 
 void LCodeGen::DoLoadKeyedGeneric(LLoadKeyedGeneric* instr) {
   DCHECK(ToRegister(instr->context()).is(cp));
   DCHECK(ToRegister(instr->object()).is(LoadDescriptor::ReceiverRegister()));
   DCHECK(ToRegister(instr->key()).is(LoadDescriptor::NameRegister()));
 
   if (FLAG_vector_ics) {
     EmitVectorLoadICRegisters<LLoadKeyedGeneric>(instr);
   }
 
-  Handle<Code> ic = CodeFactory::KeyedLoadIC(isolate()).code();
+  Handle<Code> ic =
+      CodeFactory::KeyedLoadICInOptimizedCode(
+          isolate(), instr->hydrogen()->initialization_state()).code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoArgumentsElements(LArgumentsElements* instr) {
   Register scratch = scratch0();
   Register result = ToRegister(instr->result());
 
   if (instr->hydrogen()->from_inlined()) {
     __ subi(result, sp, Operand(2 * kPointerSize));
@@ skipping 918 matching lines @@
   }
 }
 
 
 void LCodeGen::DoStoreNamedGeneric(LStoreNamedGeneric* instr) {
   DCHECK(ToRegister(instr->context()).is(cp));
   DCHECK(ToRegister(instr->object()).is(StoreDescriptor::ReceiverRegister()));
   DCHECK(ToRegister(instr->value()).is(StoreDescriptor::ValueRegister()));
 
   __ mov(StoreDescriptor::NameRegister(), Operand(instr->name()));
-  Handle<Code> ic = StoreIC::initialize_stub(isolate(), instr->language_mode());
+  Handle<Code> ic =
+      StoreIC::initialize_stub(isolate(), instr->language_mode(),
+                               instr->hydrogen()->initialization_state());
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoBoundsCheck(LBoundsCheck* instr) {
   Representation representation = instr->hydrogen()->length()->representation();
   DCHECK(representation.Equals(instr->hydrogen()->index()->representation()));
   DCHECK(representation.IsSmiOrInteger32());
 
   Condition cc = instr->hydrogen()->allow_equality() ? lt : le;
@@ skipping 243 matching lines @@
   }
 }
 
 
 void LCodeGen::DoStoreKeyedGeneric(LStoreKeyedGeneric* instr) {
   DCHECK(ToRegister(instr->context()).is(cp));
   DCHECK(ToRegister(instr->object()).is(StoreDescriptor::ReceiverRegister()));
   DCHECK(ToRegister(instr->key()).is(StoreDescriptor::NameRegister()));
   DCHECK(ToRegister(instr->value()).is(StoreDescriptor::ValueRegister()));
 
-  Handle<Code> ic =
-      CodeFactory::KeyedStoreIC(isolate(), instr->language_mode()).code();
+  Handle<Code> ic = CodeFactory::KeyedStoreICInOptimizedCode(
+                        isolate(), instr->language_mode(),
+                        instr->hydrogen()->initialization_state()).code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoTransitionElementsKind(LTransitionElementsKind* instr) {
   Register object_reg = ToRegister(instr->object());
   Register scratch = scratch0();
 
   Handle<Map> from_map = instr->original_map();
   Handle<Map> to_map = instr->transitioned_map();
@@ skipping 704 matching lines @@
     __ LoadP(ip, FieldMemOperand(ip, Cell::kValueOffset));
     __ cmp(reg, ip);
   } else {
     __ Cmpi(reg, Operand(object), r0);
   }
   DeoptimizeIf(ne, instr, Deoptimizer::kValueMismatch);
 }
 
 
 void LCodeGen::DoDeferredInstanceMigration(LCheckMaps* instr, Register object) {
+  Register temp = ToRegister(instr->temp());
   {
     PushSafepointRegistersScope scope(this);
     __ push(object);
     __ li(cp, Operand::Zero());
     __ CallRuntimeSaveDoubles(Runtime::kTryMigrateInstance);
     RecordSafepointWithRegisters(instr->pointer_map(), 1,
                                  Safepoint::kNoLazyDeopt);
-    __ StoreToSafepointRegisterSlot(r3, scratch0());
+    __ StoreToSafepointRegisterSlot(r3, temp);
   }
-  __ TestIfSmi(scratch0(), r0);
+  __ TestIfSmi(temp, r0);
   DeoptimizeIf(eq, instr, Deoptimizer::kInstanceMigrationFailed, cr0);
 }
 
 
 void LCodeGen::DoCheckMaps(LCheckMaps* instr) {
   class DeferredCheckMaps FINAL : public LDeferredCode {
    public:
     DeferredCheckMaps(LCodeGen* codegen, LCheckMaps* instr, Register object)
         : LDeferredCode(codegen), instr_(instr), object_(object) {
       SetExit(check_maps());
@@ skipping 11 matching lines @@
   };
 
   if (instr->hydrogen()->IsStabilityCheck()) {
     const UniqueSet<Map>* maps = instr->hydrogen()->maps();
     for (int i = 0; i < maps->size(); ++i) {
       AddStabilityDependency(maps->at(i).handle());
     }
     return;
   }
 
-  Register map_reg = scratch0();
+  Register object = ToRegister(instr->value());
+  Register map_reg = ToRegister(instr->temp());
 
-  LOperand* input = instr->value();
-  DCHECK(input->IsRegister());
-  Register reg = ToRegister(input);
-
-  __ LoadP(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset));
+  __ LoadP(map_reg, FieldMemOperand(object, HeapObject::kMapOffset));
 
   DeferredCheckMaps* deferred = NULL;
   if (instr->hydrogen()->HasMigrationTarget()) {
-    deferred = new (zone()) DeferredCheckMaps(this, instr, reg);
+    deferred = new (zone()) DeferredCheckMaps(this, instr, object);
     __ bind(deferred->check_maps());
   }
 
   const UniqueSet<Map>* maps = instr->hydrogen()->maps();
   Label success;
   for (int i = 0; i < maps->size() - 1; i++) {
     Handle<Map> map = maps->at(i).handle();
     __ CompareMap(map_reg, map, &success);
     __ beq(&success);
   }
@@ skipping 658 matching lines @@
   __ Push(scope_info);
   __ push(ToRegister(instr->function()));
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 }
 }  // namespace v8::internal