Remove manual representation annotations for constants.

R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/16818016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15130 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/code-stubs-hydrogen.cc

@@ -144,7 +144,7 @@ bool CodeStubGraphBuilderBase::BuildGraph() {
   set_current_block(next_block);
 
   HConstant* undefined_constant = new(zone) HConstant(
-      isolate()->factory()->undefined_value(), Representation::Tagged());
+      isolate()->factory()->undefined_value());
   AddInstruction(undefined_constant);
   graph()->set_undefined_constant(undefined_constant);
 
@@ -196,8 +196,7 @@ bool CodeStubGraphBuilderBase::BuildGraph() {
       stack_pop_count->ClearFlag(HValue::kCanOverflow);
     } else {
       int count = descriptor_->hint_stack_parameter_count_;
-      stack_pop_count = AddInstruction(new(zone)
-          HConstant(count, Representation::Integer32()));
+      stack_pop_count = AddInstruction(new(zone) HConstant(count));
     }
   }
 
@@ -391,13 +390,11 @@ HValue* CodeStubGraphBuilder<FastCloneShallowObjectStub>::BuildCodeStub() {
   HValue* boilerplate_size =
       AddInstruction(new(zone) HInstanceSize(boilerplate));
   HValue* size_in_words =
-      AddInstruction(new(zone) HConstant(size >> kPointerSizeLog2,
-                                         Representation::Integer32()));
+      AddInstruction(new(zone) HConstant(size >> kPointerSizeLog2));
   checker.IfCompare(boilerplate_size, size_in_words, Token::EQ);
   checker.Then();
 
-  HValue* size_in_bytes =
-      AddInstruction(new(zone) HConstant(size, Representation::Integer32()));
+  HValue* size_in_bytes = AddInstruction(new(zone) HConstant(size));
   HAllocate::Flags flags = HAllocate::CAN_ALLOCATE_IN_NEW_SPACE;
   if (isolate()->heap()->ShouldGloballyPretenure()) {
     flags = static_cast<HAllocate::Flags>(

src/hydrogen-instructions.h

@@ -3241,7 +3241,7 @@ class HArgumentsObject: public HTemplateInstruction<0> {
 
 class HConstant: public HTemplateInstruction<0> {
  public:
-  HConstant(Handle<Object> handle, Representation r);
+  HConstant(Handle<Object> handle, Representation r = Representation::None());
   HConstant(int32_t value,
             Representation r = Representation::None(),
             bool is_not_in_new_space = true,