e4c32b49db
Avoid the deprecated FLAG_* syntax, access flag values via the
{v8_flags} struct instead.
R=thibaudm@chromium.org
Bug: v8:12887
Change-Id: Id2f457a1c0056d5015e2f9983d4599582d7189cd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3876185
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83219}
117 lines
3.5 KiB
C++
117 lines
3.5 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>& args) {
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JavaScriptFrameIterator it(reinterpret_cast<Isolate*>(args.GetIsolate()));
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JavaScriptFrame* frame = it.frame();
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return args.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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