Lazily save double registers for HCallRuntime instructions within Hydrogen code stubs.

src/ia32/lithium-codegen-ia32.cc

Index: src/ia32/lithium-codegen-ia32.cc
diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc
index cf24756e3df464c6f193f3babf099ce11ea3960f..f06337fe41895b1d25f521a11e62b206e57fdd6a 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -983,13 +983,14 @@ void LCodeGen::CallCode(Handle<Code> code,
 
 void LCodeGen::CallRuntime(const Runtime::Function* fun,
                            int argc,
-                           LInstruction* instr) {
+                           LInstruction* instr,
+                           SaveFPRegsMode save_doubles) {
   ASSERT(instr != NULL);
   ASSERT(instr->HasPointerMap());
   LPointerMap* pointers = instr->pointer_map();
   RecordPosition(pointers->position());
 
-  __ CallRuntime(fun, argc);
+  __ CallRuntime(fun, argc, save_doubles);
 
   RecordSafepointWithLazyDeopt(instr, RECORD_SIMPLE_SAFEPOINT);
 
@@ -4431,7 +4432,7 @@ void LCodeGen::DoCallNewArray(LCallNewArray* instr) {
 
 
 void LCodeGen::DoCallRuntime(LCallRuntime* instr) {
-  CallRuntime(instr->function(), instr->arity(), instr);
+  CallRuntime(instr->function(), instr->arity(), instr, instr->save_doubles());
 }