Make HJSArrayLength more likely to have identical GVNs.

src/hydrogen-instructions.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 1018 matching lines @@
 }
 
 
 void HJSArrayLength::PrintDataTo(StringStream* stream) {
   value()->PrintNameTo(stream);
   stream->Add(" ");
   typecheck()->PrintNameTo(stream);
 }
 
 
+HJSArrayLength* HJSArrayLength::Create(HGraph* graph,
+                                       HValue* value,
+                                       HValue* typecheck,
+                                       HType type) {
+  HJSArrayLength* result = new(graph->zone())
+      HJSArrayLength(value, typecheck, type);
+  graph->RecordJSArrayLength(result);
+  return result;
+}
+
+
 HValue* HUnaryMathOperation::Canonicalize() {
   if (op() == kMathFloor) {
     // If the input is integer32 then we replace the floor instruction
     // with its input. This happens before the representation changes are
     // introduced.
     if (value()->representation().IsInteger32()) return value();
 
 #if defined(V8_TARGET_ARCH_ARM) || defined(V8_TARGET_ARCH_IA32) || \
         defined(V8_TARGET_ARCH_X64)
     if (value()->IsDiv() && (value()->UseCount() == 1)) {
@@ skipping 1716 matching lines @@
 
 
 void HCheckFunction::Verify() {
   HInstruction::Verify();
   ASSERT(HasNoUses());
 }
 
 #endif
 
 } }  // namespace v8::internal