Fast elements conversions in crankshaft using generated code.

src/ia32/ic-ia32.cc

Index: src/ia32/ic-ia32.cc
diff --git a/src/ia32/ic-ia32.cc b/src/ia32/ic-ia32.cc
index 4a12dc8565348535f0004a3395e7067a31415557..de51913672340e10ecb12d706371c61d59085ca4 100644
--- a/src/ia32/ic-ia32.cc
+++ b/src/ia32/ic-ia32.cc
@@ -1587,11 +1587,8 @@ void KeyedStoreIC::GenerateTransitionElementsSmiToDouble(MacroAssembler* masm) {
   // -----------------------------------
   // Must return the modified receiver in eax.
 
-  __ pop(ebx);
-  __ push(edx);
-  __ push(ebx);  // return address
-
-  __ TailCallRuntime(Runtime::kTransitionElementsSmiToDouble, 1, 1);
+  FastElementsConversionStub::GenerateSmiOnlyToDouble(
+      masm, FastElementsConversionStub::TRANSITION_ONLY);
 }
 
 
@@ -1603,11 +1600,8 @@ void KeyedStoreIC::GenerateTransitionElementsDoubleToObject(
   // -----------------------------------
   // Must return the modified receiver in eax.
 
-  __ pop(ebx);
-  __ push(edx);
-  __ push(ebx);  // return address
-
-  __ TailCallRuntime(Runtime::kTransitionElementsDoubleToObject, 1, 1);
+  FastElementsConversionStub::GenerateDoubleToObject(
+      masm, FastElementsConversionStub::TRANSITION_ONLY);
 }