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17a74ddd3d
PR-URL: https://github.com/nodejs/node/pull/49639 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
119 lines
3.6 KiB
C++
119 lines
3.6 KiB
C++
// Copyright 2014 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 "include/v8-function.h"
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#include "src/execution/frames-inl.h"
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#include "test/unittests/compiler/function-tester.h"
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#include "test/unittests/test-utils.h"
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namespace v8 {
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namespace internal {
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namespace compiler {
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static void IsOptimized(const v8::FunctionCallbackInfo<v8::Value>& info) {
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CHECK(i::ValidateCallbackInfo(info));
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JavaScriptStackFrameIterator it(
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reinterpret_cast<Isolate*>(info.GetIsolate()));
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JavaScriptFrame* frame = it.frame();
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return info.GetReturnValue().Set(frame->is_turbofan());
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}
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class RunDeoptTest : public TestWithContext {
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protected:
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void InstallIsOptimizedHelper(v8::Isolate* isolate) {
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v8::Local<v8::Context> context = isolate->GetCurrentContext();
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v8::Local<v8::FunctionTemplate> t =
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v8::FunctionTemplate::New(isolate, IsOptimized);
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CHECK(context->Global()
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->Set(context, NewString("IsOptimized"),
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t->GetFunction(context).ToLocalChecked())
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.FromJust());
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}
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};
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TEST_F(RunDeoptTest, DeoptSimple) {
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v8_flags.allow_natives_syntax = true;
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FunctionTester T(i_isolate(),
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"(function f(a) {"
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" var b = 1;"
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" if (!IsOptimized()) return 0;"
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" %DeoptimizeFunction(f);"
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" if (IsOptimized()) return 0;"
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" return a + b;"
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"})");
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InstallIsOptimizedHelper(v8_isolate());
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T.CheckCall(T.NewNumber(2), T.NewNumber(1));
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}
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TEST_F(RunDeoptTest, DeoptSimpleInExpr) {
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v8_flags.allow_natives_syntax = true;
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FunctionTester T(i_isolate(),
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"(function f(a) {"
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" var b = 1;"
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" var c = 2;"
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" if (!IsOptimized()) return 0;"
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" var d = b + (%DeoptimizeFunction(f), c);"
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" if (IsOptimized()) return 0;"
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" return d + a;"
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"})");
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InstallIsOptimizedHelper(v8_isolate());
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T.CheckCall(T.NewNumber(6), T.NewNumber(3));
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}
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TEST_F(RunDeoptTest, DeoptExceptionHandlerCatch) {
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v8_flags.allow_natives_syntax = true;
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FunctionTester T(i_isolate(),
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"(function f() {"
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" var is_opt = IsOptimized;"
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" try {"
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" DeoptAndThrow(f);"
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" } catch (e) {"
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" return is_opt();"
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" }"
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"})");
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TryRunJS("function DeoptAndThrow(f) { %DeoptimizeFunction(f); throw 0; }");
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InstallIsOptimizedHelper(v8_isolate());
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T.CheckCall(T.false_value());
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}
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TEST_F(RunDeoptTest, DeoptExceptionHandlerFinally) {
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v8_flags.allow_natives_syntax = true;
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FunctionTester T(i_isolate(),
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"(function f() {"
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" var is_opt = IsOptimized;"
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" try {"
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" DeoptAndThrow(f);"
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" } finally {"
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" return is_opt();"
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" }"
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"})");
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TryRunJS("function DeoptAndThrow(f) { %DeoptimizeFunction(f); throw 0; }");
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InstallIsOptimizedHelper(v8_isolate());
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T.CheckCall(T.false_value());
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}
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TEST_F(RunDeoptTest, DeoptTrivial) {
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v8_flags.allow_natives_syntax = true;
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FunctionTester T(i_isolate(),
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"(function foo() {"
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" %DeoptimizeFunction(foo);"
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" return 1;"
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"})");
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T.CheckCall(T.NewNumber(1));
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}
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} // namespace compiler
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} // namespace internal
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} // namespace v8
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