VM initialization refactoring.

src/ia32/lithium-ia32.cc

Index: src/ia32/lithium-ia32.cc
diff --git a/src/ia32/lithium-ia32.cc b/src/ia32/lithium-ia32.cc
index 199a80ae5b8119ac9634674fbe21d691129c225e..22454f127a6ef3ab23bbc906341ff35b765cdb7b 100644
--- a/src/ia32/lithium-ia32.cc
+++ b/src/ia32/lithium-ia32.cc
@@ -1633,9 +1633,8 @@ LInstruction* LChunkBuilder::DoChange(HChange* instr) {
       LOperand* value = UseRegister(instr->value());
       bool needs_check = !instr->value()->type().IsSmi();
       if (needs_check) {
-        CpuFeatures* cpu_features = Isolate::Current()->cpu_features();
         LOperand* xmm_temp =
-            (instr->CanTruncateToInt32() && cpu_features->IsSupported(SSE3))
+            (instr->CanTruncateToInt32() && CpuFeatures::IsSupported(SSE3))
             ? NULL
             : FixedTemp(xmm1);
         LTaggedToI* res = new LTaggedToI(value, xmm_temp);
@@ -1656,7 +1655,7 @@ LInstruction* LChunkBuilder::DoChange(HChange* instr) {
     } else {
       ASSERT(to.IsInteger32());
       bool needs_temp = instr->CanTruncateToInt32() &&
-          !Isolate::Current()->cpu_features()->IsSupported(SSE3);
+          !CpuFeatures::IsSupported(SSE3);
       LOperand* value = needs_temp ?
           UseTempRegister(instr->value()) : UseRegister(instr->value());
       LOperand* temp = needs_temp ? TempRegister() : NULL;