Use register allocator for context on x64.

src/ia32/lithium-codegen-ia32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 4366 matching lines @@
     CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr);
     __ bind(&done);
   } else {
     ArrayNArgumentsConstructorStub stub(kind, context_mode, override_mode);
     CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr);
   }
 }
 
 
 void LCodeGen::DoCallRuntime(LCallRuntime* instr) {
+  ASSERT(ToRegister(instr->context()).is(esi));
   CallRuntime(instr->function(), instr->arity(), instr, instr->save_doubles());
 }
 
 
 void LCodeGen::DoStoreCodeEntry(LStoreCodeEntry* instr) {
   Register function = ToRegister(instr->function());
   Register code_object = ToRegister(instr->code_object());
   __ lea(code_object, FieldOperand(code_object, Code::kHeaderSize));
   __ mov(FieldOperand(function, JSFunction::kCodeEntryOffset), code_object);
 }
@@ skipping 553 matching lines @@
 
   PushSafepointRegistersScope scope(this);
   __ SmiTag(char_code);
   __ push(char_code);
   CallRuntimeFromDeferred(Runtime::kCharFromCode, 1, instr, instr->context());
   __ StoreToSafepointRegisterSlot(result, eax);
 }
 
 
 void LCodeGen::DoStringAdd(LStringAdd* instr) {
+  ASSERT(ToRegister(instr->context()).is(esi));
   EmitPushTaggedOperand(instr->left());
   EmitPushTaggedOperand(instr->right());
   StringAddStub stub(instr->hydrogen()->flags());
   CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoInteger32ToDouble(LInteger32ToDouble* instr) {
   LOperand* input = instr->value();
   LOperand* output = instr->result();
@@ skipping 1073 matching lines @@
     __ push(esi);
     __ push(Immediate(instr->hydrogen()->shared_info()));
     __ push(Immediate(pretenure ? factory()->true_value()
                                 : factory()->false_value()));
     CallRuntime(Runtime::kNewClosure, 3, instr);
   }
 }
 
 
 void LCodeGen::DoTypeof(LTypeof* instr) {
+  ASSERT(ToRegister(instr->context()).is(esi));
   LOperand* input = instr->value();
   EmitPushTaggedOperand(input);
   CallRuntime(Runtime::kTypeof, 1, instr);
 }
 
 
 void LCodeGen::DoTypeofIsAndBranch(LTypeofIsAndBranch* instr) {
   Register input = ToRegister(instr->value());
 
   Condition final_branch_condition =
@@ skipping 224 matching lines @@
   // If the environment were already registered, we would have no way of
   // backpatching it with the spill slot operands.
   ASSERT(!environment->HasBeenRegistered());
   RegisterEnvironmentForDeoptimization(environment, Safepoint::kNoLazyDeopt);
 
   GenerateOsrPrologue();
 }
 
 
 void LCodeGen::DoForInPrepareMap(LForInPrepareMap* instr) {
+  ASSERT(ToRegister(instr->context()).is(esi));
   __ cmp(eax, isolate()->factory()->undefined_value());
   DeoptimizeIf(equal, instr->environment());
 
   __ cmp(eax, isolate()->factory()->null_value());
   DeoptimizeIf(equal, instr->environment());
 
   __ test(eax, Immediate(kSmiTagMask));
   DeoptimizeIf(zero, instr->environment());
 
   STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE);
@@ skipping 71 matching lines @@
                               FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32