8e7241fdde
Rebuilding (after touching certain files) is crazy slow because includes are out of control. Many of these files we need to rebuild are cctests which pull in more includes than they need. BUG=v8:5294 Review-Url: https://codereview.chromium.org/2304553002 Cr-Commit-Position: refs/heads/master@{#39080}
87 lines
2.8 KiB
C++
87 lines
2.8 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/factory.h"
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#include "src/isolate.h"
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#include "src/list.h"
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#include "src/objects.h"
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// FIXME(mstarzinger, marja): This is weird, but required because of the missing
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// (disallowed) include: src/factory.h -> src/objects-inl.h
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#include "src/objects-inl.h"
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// FIXME(mstarzinger, marja): This is weird, but required because of the missing
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// (disallowed) include: src/type-feedback-vector.h ->
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// src/type-feedback-vector-inl.h
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#include "src/type-feedback-vector-inl.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, // unwinding_info
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0, // unwinding_info_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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