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[objects] Remove unused Code::ic_age field.

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R=mvstanton@chromium.org

Change-Id: Ic8276eb6c282032a81d40c47409ead31d11565b7
Reviewed-on: https://chromium-review.googlesource.com/549302
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46256}
This commit is contained in:
Michael Starzinger 2017-06-27 14:17:37 +02:00 committed by Commit Bot
parent f619c7a5a1
commit 9fd7b5c27e
4 changed files with 1 additions and 12 deletions
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1
src/factory.cc
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@ -1726,7 +1726,6 @@ Handle<Code> Factory::NewCode(const CodeDesc& desc,
// The code object has not been fully initialized yet. We rely on the
// fact that no allocation will happen from this point on.
DisallowHeapAllocation no_gc;
code->set_ic_age(isolate()->heap()->global_ic_age());
code->set_instruction_size(desc.instr_size);
code->set_relocation_info(*reloc_info);
code->set_flags(flags);

1
src/heap/heap.cc
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@ -3445,7 +3445,6 @@ AllocationResult Heap::AllocateCode(int object_size, bool immovable) {
DCHECK(!memory_allocator()->code_range()->valid() ||
memory_allocator()->code_range()->contains(code->address()) ||
object_size <= code_space()->AreaSize());
code->set_ic_age(global_ic_age_);
return code;
}

3
src/objects-inl.h
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@ -5187,9 +5187,6 @@ void Code::set_stub_key(uint32_t key) {
}
INT_ACCESSORS(Code, ic_age, kICAgeOffset)
byte* Code::instruction_start() {
return FIELD_ADDR(this, kHeaderSize);
}

8
src/objects.h
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@ -3639,11 +3639,6 @@ class Code: public HeapObject {
// Note that storage for this field is overlapped with typefeedback_info.
DECL_ACCESSORS(next_code_link, Object)
// [ic_age]: Inline caching age: the value of the Heap::global_ic_age
// at the moment when this object was created.
inline void set_ic_age(int count);
inline int ic_age() const;
// [prologue_offset]: Offset of the function prologue, used for aging
// FUNCTIONs and OPTIMIZED_FUNCTIONs.
inline int prologue_offset() const;
@ -3998,8 +3993,7 @@ class Code: public HeapObject {
kSourcePositionTableOffset + kPointerSize;
static const int kNextCodeLinkOffset = kTypeFeedbackInfoOffset + kPointerSize;
static const int kInstructionSizeOffset = kNextCodeLinkOffset + kPointerSize;
static const int kICAgeOffset = kInstructionSizeOffset + kIntSize;
static const int kFlagsOffset = kICAgeOffset + kIntSize;
static const int kFlagsOffset = kInstructionSizeOffset + kIntSize;
static const int kKindSpecificFlags1Offset = kFlagsOffset + kIntSize;
static const int kKindSpecificFlags2Offset =
kKindSpecificFlags1Offset + kIntSize;