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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/v8.h"
#include "test/cctest/cctest.h"
#include "test/cctest/compiler/function-tester.h"
using namespace v8;
using namespace v8::internal;
using namespace v8::internal::compiler;
#if V8_TURBOFAN_TARGET
static void IsOptimized(const 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) {
Local<v8::Context> context = isolate->GetCurrentContext();
Local<v8::FunctionTemplate> t = FunctionTemplate::New(isolate, IsOptimized);
context->Global()->Set(v8_str("IsOptimized"), t->GetFunction());
}
TEST(TurboSimpleDeopt) {
FLAG_allow_natives_syntax = true;
FLAG_turbo_deoptimization = 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(TurboSimpleDeoptInExpr) {
FLAG_allow_natives_syntax = true;
FLAG_turbo_deoptimization = 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));
}
#endif
TEST(TurboTrivialDeopt) {
FLAG_allow_natives_syntax = true;
FLAG_turbo_deoptimization = true;
FunctionTester T(
"(function foo() {"
"%DeoptimizeFunction(foo);"
"return 1; })");
T.CheckCall(T.Val(1));
}
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