4cf2cfad0a
TBR=vogelheim@chromium.org TEST=cctest/test-run-inlining Review URL: https://codereview.chromium.org/505753002 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23356 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
195 lines
5.5 KiB
C++
195 lines
5.5 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 "src/v8.h"
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#include "test/cctest/compiler/function-tester.h"
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#if V8_TURBOFAN_TARGET
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using namespace v8::internal;
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using namespace v8::internal::compiler;
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// TODO(sigurds) At the moment we do not write optimization frames when
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// inlining, thus the reported stack depth changes depending on inlining.
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// AssertStackDepth checks the stack depth actually changes as a simple way
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// to ensure that inlining actually occurs.
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// Once inlining creates optimization frames, all these unit tests need to
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// check that the optimization frame is there.
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static void AssertStackDepth(const v8::FunctionCallbackInfo<v8::Value>& args) {
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v8::HandleScope scope(args.GetIsolate());
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v8::Handle<v8::StackTrace> stackTrace = v8::StackTrace::CurrentStackTrace(
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args.GetIsolate(), 10, v8::StackTrace::kDetailed);
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CHECK_EQ(args[0]->ToInt32()->Value(), stackTrace->GetFrameCount());
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}
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static void InstallAssertStackDepthHelper(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, AssertStackDepth);
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context->Global()->Set(v8_str("AssertStackDepth"), t->GetFunction());
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}
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TEST(SimpleInlining) {
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FLAG_context_specialization = true;
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FLAG_turbo_inlining = true;
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FunctionTester T(
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"(function(){"
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"function foo(s) { AssertStackDepth(1); return s; };"
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"function bar(s, t) { return foo(s); };"
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"return bar;})();");
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InstallAssertStackDepthHelper(CcTest::isolate());
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T.CheckCall(T.Val(1), T.Val(1), T.Val(2));
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}
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TEST(SimpleInliningContext) {
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FLAG_context_specialization = true;
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FLAG_turbo_inlining = true;
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FunctionTester T(
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"(function () {"
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"function foo(s) { AssertStackDepth(1); var x = 12; return s + x; };"
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"function bar(s, t) { return foo(s); };"
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"return bar;"
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"})();");
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InstallAssertStackDepthHelper(CcTest::isolate());
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T.CheckCall(T.Val(13), T.Val(1), T.Val(2));
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}
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TEST(CaptureContext) {
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FLAG_context_specialization = true;
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FLAG_turbo_inlining = true;
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FunctionTester T(
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"var f = (function () {"
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"var x = 42;"
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"function bar(s) { return x + s; };"
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"return (function (s) { return bar(s); });"
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"})();"
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"(function (s) { return f(s)})");
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InstallAssertStackDepthHelper(CcTest::isolate());
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T.CheckCall(T.Val(42 + 12), T.Val(12), T.undefined());
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}
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// TODO(sigurds) For now we do not inline any native functions. If we do at
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// some point, change this test.
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TEST(DontInlineEval) {
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FLAG_context_specialization = true;
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FLAG_turbo_inlining = true;
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FunctionTester T(
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"var x = 42;"
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"(function () {"
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"function bar(s, t) { return eval(\"AssertStackDepth(2); x\") };"
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"return bar;"
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"})();");
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InstallAssertStackDepthHelper(CcTest::isolate());
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T.CheckCall(T.Val(42), T.Val("x"), T.undefined());
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}
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TEST(InlineOmitArguments) {
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FLAG_context_specialization = true;
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FLAG_turbo_inlining = true;
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FunctionTester T(
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"(function () {"
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"var x = 42;"
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"function bar(s, t, u, v) { AssertStackDepth(1); return x + s; };"
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"return (function (s,t) { return bar(s); });"
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"})();");
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InstallAssertStackDepthHelper(CcTest::isolate());
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T.CheckCall(T.Val(42 + 12), T.Val(12), T.undefined());
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}
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TEST(InlineSurplusArguments) {
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FLAG_context_specialization = true;
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FLAG_turbo_inlining = true;
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FunctionTester T(
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"(function () {"
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"var x = 42;"
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"function foo(s) { AssertStackDepth(1); return x + s; };"
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"function bar(s,t) { return foo(s,t,13); };"
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"return bar;"
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"})();");
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InstallAssertStackDepthHelper(CcTest::isolate());
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T.CheckCall(T.Val(42 + 12), T.Val(12), T.undefined());
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}
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TEST(InlineTwice) {
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FLAG_context_specialization = true;
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FLAG_turbo_inlining = true;
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FunctionTester T(
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"(function () {"
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"var x = 42;"
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"function bar(s) { AssertStackDepth(1); return x + s; };"
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"return (function (s,t) { return bar(s) + bar(t); });"
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"})();");
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InstallAssertStackDepthHelper(CcTest::isolate());
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T.CheckCall(T.Val(2 * 42 + 12 + 4), T.Val(12), T.Val(4));
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}
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TEST(InlineTwiceDependent) {
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FLAG_context_specialization = true;
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FLAG_turbo_inlining = true;
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FunctionTester T(
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"(function () {"
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"var x = 42;"
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"function foo(s) { AssertStackDepth(1); return x + s; };"
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"function bar(s,t) { return foo(foo(s)); };"
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"return bar;"
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"})();");
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InstallAssertStackDepthHelper(CcTest::isolate());
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T.CheckCall(T.Val(42 + 42 + 12), T.Val(12), T.Val(4));
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}
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TEST(InlineTwiceDependentDiamond) {
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FLAG_context_specialization = true;
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FLAG_turbo_inlining = true;
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FunctionTester T(
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"(function () {"
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"function foo(s) { if (true) {"
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" return 12 } else { return 13; } };"
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"function bar(s,t) { return foo(foo(1)); };"
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"return bar;"
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"})();");
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InstallAssertStackDepthHelper(CcTest::isolate());
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T.CheckCall(T.Val(12), T.undefined(), T.undefined());
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}
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TEST(InlineTwiceDependentDiamondReal) {
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FLAG_context_specialization = true;
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FLAG_turbo_inlining = true;
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FunctionTester T(
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"(function () {"
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"var x = 41;"
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"function foo(s) { AssertStackDepth(1); if (s % 2 == 0) {"
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" return x - s } else { return x + s; } };"
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"function bar(s,t) { return foo(foo(s)); };"
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"return bar;"
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"})();");
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InstallAssertStackDepthHelper(CcTest::isolate());
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T.CheckCall(T.Val(-11), T.Val(11), T.Val(4));
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}
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#endif // V8_TURBOFAN_TARGET
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