Rollback trunk to 3.21.15.

src/code-stubs-hydrogen.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 339 matching lines @@
                                                   GetParameter(1),
                                                   static_cast<HValue*>(NULL),
                                                   FAST_ELEMENTS);
   IfBuilder checker(this);
   checker.IfNot<HCompareObjectEqAndBranch, HValue*>(allocation_site,
                                                     undefined);
   checker.Then();
 
   HObjectAccess access = HObjectAccess::ForAllocationSiteTransitionInfo();
   HInstruction* boilerplate = Add<HLoadNamedField>(allocation_site, access);
-  HValue* push_value;
   if (mode == FastCloneShallowArrayStub::CLONE_ANY_ELEMENTS) {
     HValue* elements = AddLoadElements(boilerplate);
 
     IfBuilder if_fixed_cow(this);
     if_fixed_cow.If<HCompareMap>(elements, factory->fixed_cow_array_map());
     if_fixed_cow.Then();
-    push_value = BuildCloneShallowArray(boilerplate,
-                                        allocation_site,
-                                        alloc_site_mode,
-                                        FAST_ELEMENTS,
-                                        0/*copy-on-write*/);
-    environment()->Push(push_value);
+    environment()->Push(BuildCloneShallowArray(boilerplate,
+                                               allocation_site,
+                                               alloc_site_mode,
+                                               FAST_ELEMENTS,
+                                               0/*copy-on-write*/));
     if_fixed_cow.Else();
 
     IfBuilder if_fixed(this);
     if_fixed.If<HCompareMap>(elements, factory->fixed_array_map());
     if_fixed.Then();
-    push_value = BuildCloneShallowArray(boilerplate,
-                                        allocation_site,
-                                        alloc_site_mode,
-                                        FAST_ELEMENTS,
-                                        length);
-    environment()->Push(push_value);
+    environment()->Push(BuildCloneShallowArray(boilerplate,
+                                               allocation_site,
+                                               alloc_site_mode,
+                                               FAST_ELEMENTS,
+                                               length));
     if_fixed.Else();
-    push_value = BuildCloneShallowArray(boilerplate,
-                                        allocation_site,
-                                        alloc_site_mode,
-                                        FAST_DOUBLE_ELEMENTS,
-                                        length);
-    environment()->Push(push_value);
+    environment()->Push(BuildCloneShallowArray(boilerplate,
+                                               allocation_site,
+                                               alloc_site_mode,
+                                               FAST_DOUBLE_ELEMENTS,
+                                               length));
   } else {
     ElementsKind elements_kind = casted_stub()->ComputeElementsKind();
-    push_value = BuildCloneShallowArray(boilerplate,
-                                        allocation_site,
-                                        alloc_site_mode,
-                                        elements_kind,
-                                        length);
-    environment()->Push(push_value);
+    environment()->Push(BuildCloneShallowArray(boilerplate,
+                                               allocation_site,
+                                               alloc_site_mode,
+                                               elements_kind,
+                                               length));
   }
 
   checker.ElseDeopt("Uninitialized boilerplate literals");
   checker.End();
 
   return environment()->Pop();
 }
 
 
 Handle<Code> FastCloneShallowArrayStub::GenerateCode(Isolate* isolate) {
@@ skipping 693 matching lines @@
   return js_function;
 }
 
 
 Handle<Code> FastNewClosureStub::GenerateCode(Isolate* isolate) {
   return DoGenerateCode(isolate, this);
 }
 
 
 } }  // namespace v8::internal