Use a register spec for StoreIC and KeyedStoreIC.

src/x64/full-codegen-x64.cc

 // Copyright 2012 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_X64
 
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 1648 matching lines @@
     switch (property->kind()) {
       case ObjectLiteral::Property::CONSTANT:
         UNREACHABLE();
       case ObjectLiteral::Property::MATERIALIZED_LITERAL:
         ASSERT(!CompileTimeValue::IsCompileTimeValue(value));
         // Fall through.
       case ObjectLiteral::Property::COMPUTED:
         if (key->value()->IsInternalizedString()) {
           if (property->emit_store()) {
             VisitForAccumulatorValue(value);
-            __ Move(rcx, key->value());
-            __ movp(rdx, Operand(rsp, 0));
+            ASSERT(StoreIC::ValueRegister().is(rax));
+            __ Move(StoreIC::NameRegister(), key->value());
+            __ movp(StoreIC::ReceiverRegister(), Operand(rsp, 0));
             CallStoreIC(key->LiteralFeedbackId());
             PrepareForBailoutForId(key->id(), NO_REGISTERS);
           } else {
             VisitForEffect(value);
           }
           break;
         }
         __ Push(Operand(rsp, 0));  // Duplicate receiver.
         VisitForStackValue(key);
         VisitForStackValue(value);
@@ skipping 659 matching lines @@
   switch (assign_type) {
     case VARIABLE: {
       Variable* var = expr->AsVariableProxy()->var();
       EffectContext context(this);
       EmitVariableAssignment(var, Token::ASSIGN);
       break;
     }
     case NAMED_PROPERTY: {
       __ Push(rax);  // Preserve value.
       VisitForAccumulatorValue(prop->obj());
-      __ movp(rdx, rax);
-      __ Pop(rax);  // Restore value.
-      __ Move(rcx, prop->key()->AsLiteral()->value());
+      __ Move(StoreIC::ReceiverRegister(), rax);
+      __ Pop(StoreIC::ValueRegister());  // Restore value.
+      __ Move(StoreIC::NameRegister(), prop->key()->AsLiteral()->value());
       CallStoreIC();
       break;
     }
     case KEYED_PROPERTY: {
       __ Push(rax);  // Preserve value.
       VisitForStackValue(prop->obj());
       VisitForAccumulatorValue(prop->key());
-      __ movp(rcx, rax);
-      __ Pop(rdx);
-      __ Pop(rax);  // Restore value.
+      __ Move(KeyedStoreIC::NameRegister(), rax);
+      __ Pop(KeyedStoreIC::ReceiverRegister());
+      __ Pop(KeyedStoreIC::ValueRegister());  // Restore value.
       Handle<Code> ic = strict_mode() == SLOPPY
           ? isolate()->builtins()->KeyedStoreIC_Initialize()
           : isolate()->builtins()->KeyedStoreIC_Initialize_Strict();
       CallIC(ic);
       break;
     }
   }
   context()->Plug(rax);
 }
 
@@ skipping 16 matching lines @@
   __ Push(name);
   __ Push(Smi::FromInt(strict_mode));
   __ CallRuntime(Runtime::kStoreContextSlot, 4);
 }
 
 
 void FullCodeGenerator::EmitVariableAssignment(Variable* var,
                                                Token::Value op) {
   if (var->IsUnallocated()) {
     // Global var, const, or let.
-    __ Move(rcx, var->name());
-    __ movp(rdx, GlobalObjectOperand());
+    __ Move(StoreIC::NameRegister(), var->name());
+    __ movp(StoreIC::ReceiverRegister(), GlobalObjectOperand());
     CallStoreIC();
 
   } else if (op == Token::INIT_CONST_LEGACY) {
     // Const initializers need a write barrier.
     ASSERT(!var->IsParameter());  // No const parameters.
     if (var->IsLookupSlot()) {
       __ Push(rax);
       __ Push(rsi);
       __ Push(var->name());
       __ CallRuntime(Runtime::kInitializeConstContextSlot, 3);
@@ skipping 47 matching lines @@
 
 
 void FullCodeGenerator::EmitNamedPropertyAssignment(Assignment* expr) {
   // Assignment to a property, using a named store IC.
   Property* prop = expr->target()->AsProperty();
   ASSERT(prop != NULL);
   ASSERT(prop->key()->IsLiteral());
 
   // Record source code position before IC call.
   SetSourcePosition(expr->position());
-  __ Move(rcx, prop->key()->AsLiteral()->value());
-  __ Pop(rdx);
+  __ Move(StoreIC::NameRegister(), prop->key()->AsLiteral()->value());
+  __ Pop(StoreIC::ReceiverRegister());
   CallStoreIC(expr->AssignmentFeedbackId());
 
   PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
   context()->Plug(rax);
 }
 
 
 void FullCodeGenerator::EmitKeyedPropertyAssignment(Assignment* expr) {
   // Assignment to a property, using a keyed store IC.
 
-  __ Pop(rcx);
-  __ Pop(rdx);
+  __ Pop(KeyedStoreIC::NameRegister());  // Key.
+  __ Pop(KeyedStoreIC::ReceiverRegister());
+  ASSERT(KeyedStoreIC::ValueRegister().is(rax));
   // Record source code position before IC call.
   SetSourcePosition(expr->position());
   Handle<Code> ic = strict_mode() == SLOPPY
       ? isolate()->builtins()->KeyedStoreIC_Initialize()
       : isolate()->builtins()->KeyedStoreIC_Initialize_Strict();
   CallIC(ic, expr->AssignmentFeedbackId());
 
   PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
   context()->Plug(rax);
 }
@@ skipping 1841 matching lines @@
         }
       } else {
         // Perform the assignment as if via '='.
         EmitVariableAssignment(expr->expression()->AsVariableProxy()->var(),
                                Token::ASSIGN);
         PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
         context()->Plug(rax);
       }
       break;
     case NAMED_PROPERTY: {
-      __ Move(rcx, prop->key()->AsLiteral()->value());
-      __ Pop(rdx);
+      __ Move(StoreIC::NameRegister(), prop->key()->AsLiteral()->value());
+      __ Pop(StoreIC::ReceiverRegister());
       CallStoreIC(expr->CountStoreFeedbackId());
       PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
       if (expr->is_postfix()) {
         if (!context()->IsEffect()) {
           context()->PlugTOS();
         }
       } else {
         context()->Plug(rax);
       }
       break;
     }
     case KEYED_PROPERTY: {
-      __ Pop(rcx);
-      __ Pop(rdx);
+      __ Pop(KeyedStoreIC::NameRegister());
+      __ Pop(KeyedStoreIC::ReceiverRegister());
       Handle<Code> ic = strict_mode() == SLOPPY
           ? isolate()->builtins()->KeyedStoreIC_Initialize()
           : isolate()->builtins()->KeyedStoreIC_Initialize_Strict();
       CallIC(ic, expr->CountStoreFeedbackId());
       PrepareForBailoutForId(expr->AssignmentId(), TOS_REG);
       if (expr->is_postfix()) {
         if (!context()->IsEffect()) {
           context()->PlugTOS();
         }
       } else {
@@ skipping 443 matching lines @@
   ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(),
             Assembler::target_address_at(call_target_address,
                                          unoptimized_code));
   return OSR_AFTER_STACK_CHECK;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64