Enable stub generation using Hydrogen/Lithium (again)

src/ia32/code-stubs-ia32.cc

Index: src/ia32/code-stubs-ia32.cc
diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc
index 7ea71e47eb059b1cf788c2970eddc211e00a5a02..3cbfa78e4404493a02805f617c3a0f32c1e41512 100644
--- a/src/ia32/code-stubs-ia32.cc
+++ b/src/ia32/code-stubs-ia32.cc
@@ -2504,6 +2504,7 @@ void TranscendentalCacheStub::Generate(MacroAssembler* masm) {
 
     __ bind(&loaded);
   } else {  // UNTAGGED.
+    CpuFeatures::Scope scope(SSE2);
     if (CpuFeatures::IsSupported(SSE4_1)) {
       CpuFeatures::Scope sse4_scope(SSE4_1);
       __ pextrd(edx, xmm1, 0x1);  // copy xmm1[63..32] to edx.
@@ -2576,6 +2577,7 @@ void TranscendentalCacheStub::Generate(MacroAssembler* masm) {
     __ fstp(0);
     __ ret(kPointerSize);
   } else {  // UNTAGGED.
+    CpuFeatures::Scope scope(SSE2);
     __ movdbl(xmm1, FieldOperand(eax, HeapNumber::kValueOffset));
     __ Ret();
   }
@@ -2588,6 +2590,7 @@ void TranscendentalCacheStub::Generate(MacroAssembler* masm) {
   if (tagged) {
     __ AllocateHeapNumber(eax, edi, no_reg, &runtime_call_clear_stack);
   } else {  // UNTAGGED.
+    CpuFeatures::Scope scope(SSE2);
     __ AllocateHeapNumber(eax, edi, no_reg, &skip_cache);
     __ sub(esp, Immediate(kDoubleSize));
     __ movdbl(Operand(esp, 0), xmm1);
@@ -2602,6 +2605,7 @@ void TranscendentalCacheStub::Generate(MacroAssembler* masm) {
   if (tagged) {
     __ ret(kPointerSize);
   } else {  // UNTAGGED.
+    CpuFeatures::Scope scope(SSE2);
     __ movdbl(xmm1, FieldOperand(eax, HeapNumber::kValueOffset));
     __ Ret();
 
@@ -2634,6 +2638,7 @@ void TranscendentalCacheStub::Generate(MacroAssembler* masm) {
         ExternalReference(RuntimeFunction(), masm->isolate());
     __ TailCallExternalReference(runtime, 1, 1);
   } else {  // UNTAGGED.
+    CpuFeatures::Scope scope(SSE2);
     __ bind(&runtime_call_clear_stack);
     __ bind(&runtime_call);
     __ AllocateHeapNumber(eax, edi, no_reg, &skip_cache);
@@ -4869,10 +4874,12 @@ void CodeStub::GenerateStubsAheadOfTime() {
 
 
 void CodeStub::GenerateFPStubs() {
-  CEntryStub save_doubles(1, kSaveFPRegs);
-  Handle<Code> code = save_doubles.GetCode();
-  code->set_is_pregenerated(true);
-  code->GetIsolate()->set_fp_stubs_generated(true);
+  if (CpuFeatures::IsSupported(SSE2)) {
+    CEntryStub save_doubles(1, kSaveFPRegs);
+    Handle<Code> code = save_doubles.GetCode();
+    code->set_is_pregenerated(true);
+    code->GetIsolate()->set_fp_stubs_generated(true);
+  }
 }