Added infrastructure for optimizing new CanvasArray types in WebGL...

src/x64/ic-x64.cc

Index: src/x64/ic-x64.cc
===================================================================
--- src/x64/ic-x64.cc	(revision 3095)
+++ src/x64/ic-x64.cc	(working copy)
@@ -320,7 +320,7 @@
   // Slow case: Load name and receiver from stack and jump to runtime.
   __ bind(&slow);
   __ IncrementCounter(&Counters::keyed_load_generic_slow, 1);
-  KeyedLoadIC::Generate(masm, ExternalReference(Runtime::kKeyedGetProperty));
+  Generate(masm, ExternalReference(Runtime::kKeyedGetProperty));
   __ bind(&check_string);
   // The key is not a smi.
   // Is it a string?
@@ -360,6 +360,12 @@
 }
 
 
+void KeyedLoadIC::GenerateExternalArray(MacroAssembler* masm,
+                                        ExternalArrayType array_type) {
+  GenerateGeneric(masm);
+}
+
+
 void KeyedLoadIC::GenerateMiss(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- rsp[0] : return address
@@ -458,15 +464,9 @@
   // rbx: index (as a smi)
   __ j(below, &fast);
 
-  // Slow case: Push extra copies of the arguments (3).
+  // Slow case: call runtime.
   __ bind(&slow);
-  __ pop(rcx);
-  __ push(Operand(rsp, 1 * kPointerSize));
-  __ push(Operand(rsp, 1 * kPointerSize));
-  __ push(rax);
-  __ push(rcx);
-  // Do tail-call to runtime routine.
-  __ TailCallRuntime(ExternalReference(Runtime::kSetProperty), 3, 1);
+  Generate(masm, ExternalReference(Runtime::kSetProperty));
 
   // Check whether the elements is a pixel array.
   // rax: value
@@ -558,6 +558,12 @@
 }
 
 
+void KeyedStoreIC::GenerateExternalArray(MacroAssembler* masm,
+                                         ExternalArrayType array_type) {
+  GenerateGeneric(masm);
+}
+
+
 void CallIC::Generate(MacroAssembler* masm,
                       int argc,
                       ExternalReference const& f) {