abaece06d2
Bug: v8:6333 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Iabaef0e63c81db503eb2f19bf63a1f77313f2a5a Reviewed-on: https://chromium-review.googlesource.com/635591 Commit-Queue: Peter Marshall <petermarshall@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#47681}
84 lines
2.7 KiB
C++
84 lines
2.7 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/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/feedback-vector.h ->
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// src/feedback-vector-inl.h
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#include "src/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 = Code::ComputeFlags(Code::LOAD_IC, kNoExtraICState);
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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, PACKED_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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std::vector<Handle<Name>> names;
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std::vector<Handle<Code>> codes;
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names.reserve(kEntries);
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codes.reserve(kEntries);
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for (int i = 0; i < kEntries; i++) {
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names.push_back(isolate->factory()->NewSymbol());
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codes.push_back(GetDummyCode(isolate));
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}
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Handle<Name> bad_name = isolate->factory()->NewSymbol();
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Code::Flags flags = Code::ComputeFlags(Code::LOAD_IC, kNoExtraICState);
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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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}
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CHECK_NULL(map->LookupInCodeCache(*bad_name, 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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