Fast elements conversions in crankshaft using generated code.

src/arm/ic-arm.cc

Index: src/arm/ic-arm.cc
diff --git a/src/arm/ic-arm.cc b/src/arm/ic-arm.cc
index e65249022751dd2f33aa3380162d8cc6cd94a33f..b2af31b72a54dec90ab74285ec7ac617a3751a7c 100644
--- a/src/arm/ic-arm.cc
+++ b/src/arm/ic-arm.cc
@@ -1251,8 +1251,8 @@ void KeyedStoreIC::GenerateTransitionElementsSmiToDouble(MacroAssembler* masm) {
   // -----------------------------------
   // Must return the modified receiver in r0.
 
-  __ push(r2);
-  __ TailCallRuntime(Runtime::kTransitionElementsSmiToDouble, 1, 1);
+  FastElementsConversionStub::GenerateSmiOnlyToDouble(
+      masm, FastElementsConversionStub::TRANSITION_ONLY);
 }
 
 
@@ -1264,8 +1264,8 @@ void KeyedStoreIC::GenerateTransitionElementsDoubleToObject(
   // -----------------------------------
   // Must return the modified receiver in r0.
 
-  __ push(r2);
-  __ TailCallRuntime(Runtime::kTransitionElementsDoubleToObject, 1, 1);
+  FastElementsConversionStub::GenerateDoubleToObject(
+      masm, FastElementsConversionStub::TRANSITION_ONLY);
 }