Require SSE2 support for the ia32 port.

src/ia32/stub-cache-ia32.cc

Index: src/ia32/stub-cache-ia32.cc
diff --git a/src/ia32/stub-cache-ia32.cc b/src/ia32/stub-cache-ia32.cc
index adc8cd59aa9fef87c7aa1dfd6c80ce3632ff5e40..4083a9b60caa451ceebe6d9bd83ef92a9111638c 100644
--- a/src/ia32/stub-cache-ia32.cc
+++ b/src/ia32/stub-cache-ia32.cc
@@ -527,34 +527,17 @@ void StoreStubCompiler::GenerateStoreTransition(MacroAssembler* masm,
 
     __ JumpIfNotSmi(value_reg, &heap_number);
     __ SmiUntag(value_reg);
-    if (CpuFeatures::IsSupported(SSE2)) {
-      CpuFeatureScope use_sse2(masm, SSE2);
-      __ Cvtsi2sd(xmm0, value_reg);
-    } else {
-      __ push(value_reg);
-      __ fild_s(Operand(esp, 0));
-      __ pop(value_reg);
-    }
+    __ Cvtsi2sd(xmm0, value_reg);
     __ SmiTag(value_reg);
     __ jmp(&do_store);
 
     __ bind(&heap_number);
     __ CheckMap(value_reg, masm->isolate()->factory()->heap_number_map(),
                 miss_label, DONT_DO_SMI_CHECK);
-    if (CpuFeatures::IsSupported(SSE2)) {
-      CpuFeatureScope use_sse2(masm, SSE2);
-      __ movsd(xmm0, FieldOperand(value_reg, HeapNumber::kValueOffset));
-    } else {
-      __ fld_d(FieldOperand(value_reg, HeapNumber::kValueOffset));
-    }
+    __ movsd(xmm0, FieldOperand(value_reg, HeapNumber::kValueOffset));
 
     __ bind(&do_store);
-    if (CpuFeatures::IsSupported(SSE2)) {
-      CpuFeatureScope use_sse2(masm, SSE2);
-      __ movsd(FieldOperand(storage_reg, HeapNumber::kValueOffset), xmm0);
-    } else {
-      __ fstp_d(FieldOperand(storage_reg, HeapNumber::kValueOffset));
-    }
+    __ movsd(FieldOperand(storage_reg, HeapNumber::kValueOffset), xmm0);
   }
 
   // Stub never generated for non-global objects that require access
@@ -721,32 +704,15 @@ void StoreStubCompiler::GenerateStoreField(MacroAssembler* masm,
     Label do_store, heap_number;
     __ JumpIfNotSmi(value_reg, &heap_number);
     __ SmiUntag(value_reg);
-    if (CpuFeatures::IsSupported(SSE2)) {
-      CpuFeatureScope use_sse2(masm, SSE2);
-      __ Cvtsi2sd(xmm0, value_reg);
-    } else {
-      __ push(value_reg);
-      __ fild_s(Operand(esp, 0));
-      __ pop(value_reg);
-    }
+    __ Cvtsi2sd(xmm0, value_reg);
     __ SmiTag(value_reg);
     __ jmp(&do_store);
     __ bind(&heap_number);
     __ CheckMap(value_reg, masm->isolate()->factory()->heap_number_map(),
                 miss_label, DONT_DO_SMI_CHECK);
-    if (CpuFeatures::IsSupported(SSE2)) {
-      CpuFeatureScope use_sse2(masm, SSE2);
-      __ movsd(xmm0, FieldOperand(value_reg, HeapNumber::kValueOffset));
-    } else {
-      __ fld_d(FieldOperand(value_reg, HeapNumber::kValueOffset));
-    }
+    __ movsd(xmm0, FieldOperand(value_reg, HeapNumber::kValueOffset));
     __ bind(&do_store);
-    if (CpuFeatures::IsSupported(SSE2)) {
-      CpuFeatureScope use_sse2(masm, SSE2);
-      __ movsd(FieldOperand(scratch1, HeapNumber::kValueOffset), xmm0);
-    } else {
-      __ fstp_d(FieldOperand(scratch1, HeapNumber::kValueOffset));
-    }
+    __ movsd(FieldOperand(scratch1, HeapNumber::kValueOffset), xmm0);
     // Return the value (register eax).
     ASSERT(value_reg.is(eax));
     __ ret(0);