Extend crankshaft support for global stores

src/x64/lithium-codegen-x64.cc

Index: src/x64/lithium-codegen-x64.cc
diff --git a/src/x64/lithium-codegen-x64.cc b/src/x64/lithium-codegen-x64.cc
index 8e54f20736493d22adcedae360e12dca29d9db9f..7ceff76e148f70efd55d40c898b00e50a628ced0 100644
--- a/src/x64/lithium-codegen-x64.cc
+++ b/src/x64/lithium-codegen-x64.cc
@@ -2047,7 +2047,7 @@ void LCodeGen::DoLoadGlobalGeneric(LLoadGlobalGeneric* instr) {
 }
 
 
-void LCodeGen::DoStoreGlobal(LStoreGlobal* instr) {
+void LCodeGen::DoStoreGlobalCell(LStoreGlobalCell* instr) {
   Register value = ToRegister(instr->InputAt(0));
   Register temp = ToRegister(instr->TempAt(0));
   ASSERT(!value.is(temp));
@@ -2070,6 +2070,16 @@ void LCodeGen::DoStoreGlobal(LStoreGlobal* instr) {
 }
 
 
+void LCodeGen::DoStoreGlobalGeneric(LStoreGlobalGeneric* instr) {
+  ASSERT(ToRegister(instr->global_object()).is(rdx));
+  ASSERT(ToRegister(instr->value()).is(rax));
+
+  __ Move(rcx, instr->name());
+  Handle<Code> ic = isolate()->builtins()->StoreIC_Initialize();
+  CallCode(ic, RelocInfo::CODE_TARGET_CONTEXT, instr);
+}
+
+
 void LCodeGen::DoLoadContextSlot(LLoadContextSlot* instr) {
   Register context = ToRegister(instr->context());
   Register result = ToRegister(instr->result());
@@ -2744,7 +2754,6 @@ void LCodeGen::DoPower(LPower* instr) {
         ExternalReference::power_double_int_function(isolate()), 2);
   } else {
     ASSERT(exponent_type.IsTagged());
-    CpuFeatures::Scope scope(SSE2);
     Register right_reg = ToRegister(right);
 
     Label non_smi, call;