9dc62d2721
There are no ICs left that store their state in this field: vector based ICs use feedback vector and the rest three (BinaryOpIC, CompareIC and ToBooleanIC) reconstruct their state from the ExtraICState field. This CL also removes unused InlineCacheState::DEBUG_STUB which was used mostly in Code::is_debug_stub(). The latter now checks if the code is one of the debug builtins instead. BUG=chromium:618701 LOG=Y Review-Url: https://codereview.chromium.org/2052763003 Cr-Commit-Position: refs/heads/master@{#36871}
76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/v8.h"
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#include "src/list.h"
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#include "src/objects.h"
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#include "test/cctest/cctest.h"
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namespace v8 {
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namespace internal {
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namespace {
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static Handle<Code> GetDummyCode(Isolate* isolate) {
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CodeDesc desc = {nullptr, // buffer
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0, // buffer_size
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0, // instr_size
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0, // reloc_size
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0, // constant_pool_size
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nullptr}; // origin
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Code::Flags flags =
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Code::ComputeFlags(Code::LOAD_IC, kNoExtraICState, kCacheOnReceiver);
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Handle<Code> self_ref;
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return isolate->factory()->NewCode(desc, flags, self_ref);
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}
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} // namespace
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TEST(CodeCache) {
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CcTest::InitializeVM();
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Isolate* isolate = CcTest::i_isolate();
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Factory* factory = isolate->factory();
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HandleScope handle_scope(isolate);
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Handle<Map> map =
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factory->NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize, FAST_ELEMENTS);
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// This number should be large enough to cause the code cache to use its
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// hash table storage format.
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static const int kEntries = 150;
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// Prepare name/code pairs.
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List<Handle<Name>> names(kEntries);
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List<Handle<Code>> codes(kEntries);
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for (int i = 0; i < kEntries; i++) {
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names.Add(isolate->factory()->NewSymbol());
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codes.Add(GetDummyCode(isolate));
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}
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Handle<Name> bad_name = isolate->factory()->NewSymbol();
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Code::Flags bad_flags =
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Code::ComputeFlags(Code::LOAD_IC, kNoExtraICState, kCacheOnPrototype);
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DCHECK(bad_flags != codes[0]->flags());
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// Cache name/code pairs.
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for (int i = 0; i < kEntries; i++) {
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Handle<Name> name = names.at(i);
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Handle<Code> code = codes.at(i);
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Map::UpdateCodeCache(map, name, code);
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CHECK_EQ(*code, map->LookupInCodeCache(*name, code->flags()));
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CHECK_NULL(map->LookupInCodeCache(*name, bad_flags));
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}
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CHECK_NULL(map->LookupInCodeCache(*bad_name, bad_flags));
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// Check that lookup works not only right after storing.
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for (int i = 0; i < kEntries; i++) {
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Handle<Name> name = names.at(i);
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Handle<Code> code = codes.at(i);
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CHECK_EQ(*code, map->LookupInCodeCache(*name, code->flags()));
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}
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}
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} // namespace internal
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} // namespace v8
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