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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/execution/frames-inl.h"
#include "test/cctest/cctest.h"
#include "test/cctest/compiler/function-tester.h"
namespace v8 {
namespace internal {
namespace compiler {
static void IsOptimized(const v8::FunctionCallbackInfo<v8::Value>& args) {
JavaScriptFrameIterator it(CcTest::i_isolate());
JavaScriptFrame* frame = it.frame();
return args.GetReturnValue().Set(frame->is_optimized());
}
static void InstallIsOptimizedHelper(v8::Isolate* isolate) {
v8::Local<v8::Context> context = isolate->GetCurrentContext();
v8::Local<v8::FunctionTemplate> t =
v8::FunctionTemplate::New(isolate, IsOptimized);
CHECK(context->Global()
->Set(context, v8_str("IsOptimized"),
t->GetFunction(context).ToLocalChecked())
.FromJust());
}
TEST(DeoptSimple) {
FLAG_allow_natives_syntax = true;
FunctionTester T(
"(function f(a) {"
" var b = 1;"
" if (!IsOptimized()) return 0;"
" %DeoptimizeFunction(f);"
" if (IsOptimized()) return 0;"
" return a + b;"
"})");
InstallIsOptimizedHelper(CcTest::isolate());
T.CheckCall(T.Val(2), T.Val(1));
}
TEST(DeoptSimpleInExpr) {
FLAG_allow_natives_syntax = true;
FunctionTester T(
"(function f(a) {"
" var b = 1;"
" var c = 2;"
" if (!IsOptimized()) return 0;"
" var d = b + (%DeoptimizeFunction(f), c);"
" if (IsOptimized()) return 0;"
" return d + a;"
"})");
InstallIsOptimizedHelper(CcTest::isolate());
T.CheckCall(T.Val(6), T.Val(3));
}
TEST(DeoptExceptionHandlerCatch) {
FLAG_allow_natives_syntax = true;
FunctionTester T(
"(function f() {"
" var is_opt = IsOptimized;"
" try {"
" DeoptAndThrow(f);"
" } catch (e) {"
" return is_opt();"
" }"
"})");
CompileRun("function DeoptAndThrow(f) { %DeoptimizeFunction(f); throw 0; }");
InstallIsOptimizedHelper(CcTest::isolate());
T.CheckCall(T.false_value());
}
TEST(DeoptExceptionHandlerFinally) {
FLAG_allow_natives_syntax = true;
FunctionTester T(
"(function f() {"
" var is_opt = IsOptimized;"
" try {"
" DeoptAndThrow(f);"
" } finally {"
" return is_opt();"
" }"
"})");
CompileRun("function DeoptAndThrow(f) { %DeoptimizeFunction(f); throw 0; }");
InstallIsOptimizedHelper(CcTest::isolate());
T.CheckCall(T.false_value());
}
TEST(DeoptTrivial) {
FLAG_allow_natives_syntax = true;
FunctionTester T(
"(function foo() {"
" %DeoptimizeFunction(foo);"
" return 1;"
"})");
T.CheckCall(T.Val(1));
}
} // namespace compiler
} // namespace internal
} // namespace v8
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