From: mvstanton@chromium.org <mvstanton@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Date: Wed, 8 May 2013 16:48:27 +0000 (+0000)
Subject: Parallel compilation bug: LCallNewArray dereferenced a handle unnecessarily.
X-Git-Tag: upstream/4.7.83~14296
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ef5211d8afc5d76c071bba07564e55c055aaa905;p=platform%2Fupstream%2Fv8.git

Parallel compilation bug: LCallNewArray dereferenced a handle unnecessarily.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/14761010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14599 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
---

diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index ded6487..3a0f476 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -4188,8 +4188,7 @@ void LCodeGen::DoCallNewArray(LCallNewArray* instr) {
 
   __ mov(r0, Operand(instr->arity()));
   __ mov(r2, Operand(instr->hydrogen()->property_cell()));
-  Object* cell_value = instr->hydrogen()->property_cell()->value();
-  ElementsKind kind = static_cast<ElementsKind>(Smi::cast(cell_value)->value());
+  ElementsKind kind = instr->hydrogen()->elements_kind();
   if (instr->arity() == 0) {
     ArrayNoArgumentConstructorStub stub(kind);
     CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr);
diff --git a/src/hydrogen-instructions.h b/src/hydrogen-instructions.h
index 3073f45..3ea99d4 100644
--- a/src/hydrogen-instructions.h
+++ b/src/hydrogen-instructions.h
@@ -2353,15 +2353,20 @@ class HCallNewArray: public HCallNew {
               Handle<JSGlobalPropertyCell> type_cell)
       : HCallNew(context, constructor, argument_count),
         type_cell_(type_cell) {
+    elements_kind_ = static_cast<ElementsKind>(
+        Smi::cast(type_cell->value())->value());
   }
 
   Handle<JSGlobalPropertyCell> property_cell() const {
     return type_cell_;
   }
 
+  ElementsKind elements_kind() const { return elements_kind_; }
+
   DECLARE_CONCRETE_INSTRUCTION(CallNewArray)
 
  private:
+  ElementsKind elements_kind_;
   Handle<JSGlobalPropertyCell> type_cell_;
 };
 
diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc
index 99955a5..1d9e942 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -4191,8 +4191,7 @@ void LCodeGen::DoCallNewArray(LCallNewArray* instr) {
 
   __ Set(eax, Immediate(instr->arity()));
   __ mov(ebx, instr->hydrogen()->property_cell());
-  Object* cell_value = instr->hydrogen()->property_cell()->value();
-  ElementsKind kind = static_cast<ElementsKind>(Smi::cast(cell_value)->value());
+  ElementsKind kind = instr->hydrogen()->elements_kind();
   if (instr->arity() == 0) {
     ArrayNoArgumentConstructorStub stub(kind);
     CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr);
diff --git a/src/mips/lithium-codegen-mips.cc b/src/mips/lithium-codegen-mips.cc
index b933459..3d3ef39 100644
--- a/src/mips/lithium-codegen-mips.cc
+++ b/src/mips/lithium-codegen-mips.cc
@@ -3881,8 +3881,7 @@ void LCodeGen::DoCallNewArray(LCallNewArray* instr) {
 
   __ li(a0, Operand(instr->arity()));
   __ li(a2, Operand(instr->hydrogen()->property_cell()));
-  Object* cell_value = instr->hydrogen()->property_cell()->value();
-  ElementsKind kind = static_cast<ElementsKind>(Smi::cast(cell_value)->value());
+  ElementsKind kind = instr->hydrogen()->elements_kind();
   if (instr->arity() == 0) {
     ArrayNoArgumentConstructorStub stub(kind);
     CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr);
diff --git a/src/x64/lithium-codegen-x64.cc b/src/x64/lithium-codegen-x64.cc
index 97b27d5..f908ea1 100644
--- a/src/x64/lithium-codegen-x64.cc
+++ b/src/x64/lithium-codegen-x64.cc
@@ -3876,8 +3876,7 @@ void LCodeGen::DoCallNewArray(LCallNewArray* instr) {
 
   __ Set(rax, instr->arity());
   __ Move(rbx, instr->hydrogen()->property_cell());
-  Object* cell_value = instr->hydrogen()->property_cell()->value();
-  ElementsKind kind = static_cast<ElementsKind>(Smi::cast(cell_value)->value());
+  ElementsKind kind = instr->hydrogen()->elements_kind();
   if (instr->arity() == 0) {
     ArrayNoArgumentConstructorStub stub(kind);
     CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr);