f9a88acbc9
TBR=mvstanton@chromium.org,neis@chromium.org,ahaas@chromium.org Bug: v8:9247 Change-Id: I5433c863a54f3412d73df0d38aba3fdbcfac7ebe Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627973 Commit-Queue: Yang Guo <yangguo@chromium.org> Auto-Submit: Yang Guo <yangguo@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#61830}
121 lines
5.2 KiB
C++
121 lines
5.2 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/init/v8.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 test_usecounters {
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int* global_use_counts = nullptr;
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void MockUseCounterCallback(v8::Isolate* isolate,
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v8::Isolate::UseCounterFeature feature) {
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++global_use_counts[feature];
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}
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TEST(AssigmentExpressionLHSIsCall) {
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v8::Isolate* isolate = CcTest::isolate();
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v8::HandleScope scope(isolate);
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LocalContext env;
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int use_counts[v8::Isolate::kUseCounterFeatureCount] = {};
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global_use_counts = use_counts;
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CcTest::isolate()->SetUseCounterCallback(MockUseCounterCallback);
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// AssignmentExpressions whose LHS is not a call do not increment counters
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CompileRun("function f(){ a = 0; a()[b] = 0; }");
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CHECK_EQ(0, use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInSloppy]);
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CHECK_EQ(0, use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInStrict]);
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CompileRun("function f(){ ++a; ++a()[b]; }");
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CHECK_EQ(0, use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInSloppy]);
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CHECK_EQ(0, use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInStrict]);
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CompileRun("function f(){ 'use strict'; a = 0; a()[b] = 0; }");
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CHECK_EQ(0, use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInSloppy]);
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CHECK_EQ(0, use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInStrict]);
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CompileRun("function f(){ 'use strict'; ++a; ++a()[b]; }");
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CHECK_EQ(0, use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInSloppy]);
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CHECK_EQ(0, use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInStrict]);
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// AssignmentExpressions whose LHS is a call increment appropriate counters
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CompileRun("function f(){ a() = 0; }");
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CHECK_NE(0, use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInSloppy]);
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CHECK_EQ(0, use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInStrict]);
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use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInSloppy] = 0;
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CompileRun("function f(){ 'use strict'; a() = 0; }");
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CHECK_EQ(0, use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInSloppy]);
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CHECK_NE(0, use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInStrict]);
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use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInStrict] = 0;
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// UpdateExpressions whose LHS is a call increment appropriate counters
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CompileRun("function f(){ ++a(); }");
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CHECK_NE(0, use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInSloppy]);
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CHECK_EQ(0, use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInStrict]);
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use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInSloppy] = 0;
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CompileRun("function f(){ 'use strict'; ++a(); }");
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CHECK_EQ(0, use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInSloppy]);
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CHECK_NE(0, use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInStrict]);
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use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInStrict] = 0;
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}
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TEST(AtomicsWakeAndAtomicsNotify) {
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v8::Isolate* isolate = CcTest::isolate();
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v8::HandleScope scope(isolate);
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LocalContext env;
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int use_counts[v8::Isolate::kUseCounterFeatureCount] = {};
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global_use_counts = use_counts;
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i::FLAG_harmony_sharedarraybuffer = true;
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CcTest::isolate()->SetUseCounterCallback(MockUseCounterCallback);
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CompileRun("Atomics.wake(new Int32Array(new SharedArrayBuffer(16)), 0);");
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CHECK_EQ(1, use_counts[v8::Isolate::kAtomicsWake]);
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CHECK_EQ(0, use_counts[v8::Isolate::kAtomicsNotify]);
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use_counts[v8::Isolate::kAtomicsWake] = 0;
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use_counts[v8::Isolate::kAtomicsNotify] = 0;
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CompileRun("Atomics.notify(new Int32Array(new SharedArrayBuffer(16)), 0);");
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CHECK_EQ(0, use_counts[v8::Isolate::kAtomicsWake]);
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CHECK_EQ(1, use_counts[v8::Isolate::kAtomicsNotify]);
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}
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TEST(RegExpMatchIsTrueishOnNonJSRegExp) {
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v8::Isolate* isolate = CcTest::isolate();
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v8::HandleScope scope(isolate);
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LocalContext env;
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int use_counts[v8::Isolate::kUseCounterFeatureCount] = {};
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global_use_counts = use_counts;
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CcTest::isolate()->SetUseCounterCallback(MockUseCounterCallback);
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CompileRun("new RegExp(/./); new RegExp('');");
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CHECK_EQ(0, use_counts[v8::Isolate::kRegExpMatchIsTrueishOnNonJSRegExp]);
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CHECK_EQ(0, use_counts[v8::Isolate::kRegExpMatchIsFalseishOnJSRegExp]);
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CompileRun("let p = { [Symbol.match]: true }; new RegExp(p);");
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CHECK_EQ(1, use_counts[v8::Isolate::kRegExpMatchIsTrueishOnNonJSRegExp]);
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CHECK_EQ(0, use_counts[v8::Isolate::kRegExpMatchIsFalseishOnJSRegExp]);
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}
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TEST(RegExpMatchIsFalseishOnJSRegExp) {
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v8::Isolate* isolate = CcTest::isolate();
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v8::HandleScope scope(isolate);
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LocalContext env;
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int use_counts[v8::Isolate::kUseCounterFeatureCount] = {};
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global_use_counts = use_counts;
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CcTest::isolate()->SetUseCounterCallback(MockUseCounterCallback);
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CompileRun("new RegExp(/./); new RegExp('');");
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CHECK_EQ(0, use_counts[v8::Isolate::kRegExpMatchIsTrueishOnNonJSRegExp]);
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CHECK_EQ(0, use_counts[v8::Isolate::kRegExpMatchIsFalseishOnJSRegExp]);
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CompileRun("let p = /./; p[Symbol.match] = false; new RegExp(p);");
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CHECK_EQ(0, use_counts[v8::Isolate::kRegExpMatchIsTrueishOnNonJSRegExp]);
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CHECK_EQ(1, use_counts[v8::Isolate::kRegExpMatchIsFalseishOnJSRegExp]);
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}
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} // namespace test_usecounters
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} // namespace internal
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} // namespace v8
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