Create AllocationSite objects, pointed to by AllocationSiteInfo.

src/code-stubs-hydrogen.cc

Index: src/code-stubs-hydrogen.cc
diff --git a/src/code-stubs-hydrogen.cc b/src/code-stubs-hydrogen.cc
index 4be21c30da3c3173c3f660f45d49573bb6af2e5e..817a6eca57a9cbb05cfe997bf85863d37cae7dae 100644
--- a/src/code-stubs-hydrogen.cc
+++ b/src/code-stubs-hydrogen.cc
@@ -315,16 +315,18 @@ HValue* CodeStubGraphBuilder<FastCloneShallowArrayStub>::BuildCodeStub() {
   FastCloneShallowArrayStub::Mode mode = casted_stub()->mode();
   int length = casted_stub()->length();
 
-  HInstruction* boilerplate =
-      AddInstruction(new(zone) HLoadKeyed(GetParameter(0),
+  HValue* literals = GetParameter(0);
+  HInstruction* allocation_site =
+      AddInstruction(new(zone) HLoadKeyed(literals,

[Hannes Payer (out of office), 2013/06/25 16:35:07]

literals is just used there, you could just use the original code.

[mvstanton, 2013/07/02 13:55:11]

Done.

                                           GetParameter(1),
                                           NULL,
                                           FAST_ELEMENTS));
-
   IfBuilder checker(this);
-  checker.IfNot<HCompareObjectEqAndBranch, HValue*>(boilerplate, undefined);
+  checker.IfNot<HCompareObjectEqAndBranch, HValue*>(allocation_site, undefined);
   checker.Then();
 
+  HObjectAccess access = HObjectAccess::ForAllocationSiteInfoPayload();
+  HInstruction* boilerplate = AddLoad(allocation_site, access);
   if (mode == FastCloneShallowArrayStub::CLONE_ANY_ELEMENTS) {
     HValue* elements = AddLoadElements(boilerplate);
 
@@ -333,6 +335,7 @@ HValue* CodeStubGraphBuilder<FastCloneShallowArrayStub>::BuildCodeStub() {
     if_fixed_cow.Then();
     environment()->Push(BuildCloneShallowArray(context(),
                                                boilerplate,
+                                               allocation_site,
                                                alloc_site_mode,
                                                FAST_ELEMENTS,
                                                0/*copy-on-write*/));
@@ -343,12 +346,14 @@ HValue* CodeStubGraphBuilder<FastCloneShallowArrayStub>::BuildCodeStub() {
     if_fixed.Then();
     environment()->Push(BuildCloneShallowArray(context(),
                                                boilerplate,
+                                               allocation_site,
                                                alloc_site_mode,
                                                FAST_ELEMENTS,
                                                length));
     if_fixed.Else();
     environment()->Push(BuildCloneShallowArray(context(),
                                                boilerplate,
+                                               allocation_site,
                                                alloc_site_mode,
                                                FAST_DOUBLE_ELEMENTS,
                                                length));
@@ -356,6 +361,7 @@ HValue* CodeStubGraphBuilder<FastCloneShallowArrayStub>::BuildCodeStub() {
     ElementsKind elements_kind = casted_stub()->ComputeElementsKind();
     environment()->Push(BuildCloneShallowArray(context(),
                                                boilerplate,
+                                               allocation_site,
                                                alloc_site_mode,
                                                elements_kind,
                                                length));