Strict Mode assignment to read only property.

src/ia32/codegen-ia32.cc

Index: src/ia32/codegen-ia32.cc
diff --git a/src/ia32/codegen-ia32.cc b/src/ia32/codegen-ia32.cc
index ae544dc63b211ac43ea618e7d1ecde9178e2daaa..795567bc1ce8f75d51ac0f609f45e5d82b3314ce 100644
--- a/src/ia32/codegen-ia32.cc
+++ b/src/ia32/codegen-ia32.cc
@@ -3526,7 +3526,8 @@ void CodeGenerator::DeclareGlobals(Handle<FixedArray> pairs) {
   frame_->EmitPush(esi);  // The context is the first argument.
   frame_->EmitPush(Immediate(pairs));
   frame_->EmitPush(Immediate(Smi::FromInt(is_eval() ? 1 : 0)));
-  Result ignored = frame_->CallRuntime(Runtime::kDeclareGlobals, 3);
+  frame_->EmitPush(Immediate(Smi::FromInt(strict_mode_flag())));
+  Result ignored = frame_->CallRuntime(Runtime::kDeclareGlobals, 4);
   // Return value is ignored.
 }
 
@@ -5259,7 +5260,8 @@ void CodeGenerator::StoreToSlot(Slot* slot, InitState init_state) {
       // by initialization.
       value = frame_->CallRuntime(Runtime::kInitializeConstContextSlot, 3);
     } else {
-      value = frame_->CallRuntime(Runtime::kStoreContextSlot, 3);
+      frame_->Push(Smi::FromInt(strict_mode_flag()));
+      value = frame_->CallRuntime(Runtime::kStoreContextSlot, 4);
     }
     // Storing a variable must keep the (new) value on the expression
     // stack. This is necessary for compiling chained assignment
@@ -5608,8 +5610,9 @@ void CodeGenerator::VisitObjectLiteral(ObjectLiteral* node) {
           Load(property->key());
           Load(property->value());
           if (property->emit_store()) {
+            frame_->Push(Smi::FromInt(NONE));   // PropertyAttributes
             // Ignore the result.
-            Result ignored = frame_->CallRuntime(Runtime::kSetProperty, 3);
+            Result ignored = frame_->CallRuntime(Runtime::kSetProperty, 4);
           } else {
             frame_->Drop(3);
           }
@@ -9458,11 +9461,13 @@ class DeferredReferenceSetKeyedValue: public DeferredCode {
   DeferredReferenceSetKeyedValue(Register value,
                                  Register key,
                                  Register receiver,
-                                 Register scratch)
+                                 Register scratch,
+                                 StrictModeFlag strict_mode)
       : value_(value),
         key_(key),
         receiver_(receiver),
-        scratch_(scratch) {
+        scratch_(scratch),
+        strict_mode_(strict_mode) {
     set_comment("[ DeferredReferenceSetKeyedValue");
   }
 
@@ -9476,6 +9481,7 @@ class DeferredReferenceSetKeyedValue: public DeferredCode {
   Register receiver_;
   Register scratch_;
   Label patch_site_;
+  StrictModeFlag strict_mode_;
 };
 
 
@@ -9534,7 +9540,9 @@ void DeferredReferenceSetKeyedValue::Generate() {
   }
 
   // Call the IC stub.
-  Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Initialize));
+  Handle<Code> ic(Builtins::builtin(
+      (strict_mode_ == kStrictMode) ? Builtins::KeyedStoreIC_Initialize_Strict
+                                    : Builtins::KeyedStoreIC_Initialize));
   __ call(ic, RelocInfo::CODE_TARGET);
   // The delta from the start of the map-compare instruction to the
   // test instruction.  We use masm_-> directly here instead of the
@@ -9896,7 +9904,8 @@ Result CodeGenerator::EmitKeyedStore(StaticType* key_type) {
         new DeferredReferenceSetKeyedValue(result.reg(),
                                            key.reg(),
                                            receiver.reg(),
-                                           tmp.reg());
+                                           tmp.reg(),
+                                           strict_mode_flag());
 
     // Check that the receiver is not a smi.
     __ test(receiver.reg(), Immediate(kSmiTagMask));
@@ -9951,7 +9960,7 @@ Result CodeGenerator::EmitKeyedStore(StaticType* key_type) {
 
     deferred->BindExit();
   } else {
-    result = frame()->CallKeyedStoreIC();
+    result = frame()->CallKeyedStoreIC(strict_mode_flag());
     // Make sure that we do not have a test instruction after the
     // call.  A test instruction after the call is used to
     // indicate that we have generated an inline version of the