Write barrier for storing a code entry, and usage in CompileLazy builtin.

src/ia32/builtins-ia32.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.
 
 #if V8_TARGET_ARCH_IA32
 
 #include "src/code-factory.h"
 #include "src/codegen.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 923 matching lines @@
   __ JumpIfSmi(entry, &maybe_call_runtime);
 
   // Found literals and code. Get them into the closure and return.
   __ pop(closure);
   // Store code entry in the closure.
   __ lea(entry, FieldOperand(entry, Code::kHeaderSize));
 
   Label install_optimized_code_and_tailcall;
   __ bind(&install_optimized_code_and_tailcall);
   __ mov(FieldOperand(closure, JSFunction::kCodeEntryOffset), entry);
+  __ mov(ebx, entry);
+  __ RecordWriteCodeEntryField(closure, ebx, eax);
 
   // Link the closure into the optimized function list.
   // ecx : code entry
   // edx : native context
   // edi : closure
   __ mov(ebx,
          ContextOperand(native_context, Context::OPTIMIZED_FUNCTIONS_LIST));
   __ mov(FieldOperand(closure, JSFunction::kNextFunctionLinkOffset), ebx);
   __ RecordWriteField(closure, JSFunction::kNextFunctionLinkOffset, ebx, eax,
                       kDontSaveFPRegs, EMIT_REMEMBERED_SET, OMIT_SMI_CHECK);
@@ skipping 36 matching lines @@
   __ mov(entry, FieldOperand(closure, JSFunction::kSharedFunctionInfoOffset));
   __ mov(entry, FieldOperand(entry, SharedFunctionInfo::kCodeOffset));
   __ mov(ebx, FieldOperand(entry, Code::kFlagsOffset));
   __ and_(ebx, Code::KindField::kMask);
   __ shr(ebx, Code::KindField::kShift);
   __ cmp(ebx, Immediate(Code::BUILTIN));
   __ j(equal, &gotta_call_runtime_no_stack);
   // Yes, install the full code.
   __ lea(entry, FieldOperand(entry, Code::kHeaderSize));
   __ mov(FieldOperand(closure, JSFunction::kCodeEntryOffset), entry);
+  __ mov(ebx, entry);
+  __ RecordWriteCodeEntryField(closure, ebx, eax);
   __ jmp(entry);
 
   __ bind(&gotta_call_runtime);
   __ pop(closure);
   __ pop(new_target);
   __ bind(&gotta_call_runtime_no_stack);
   CallRuntimePassFunction(masm, Runtime::kCompileLazy);
   GenerateTailCallToReturnedCode(masm);
 }
 
@@ skipping 1803 matching lines @@
 
   __ bind(&ok);
   __ ret(0);
 }
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_IA32