294671e832
Drive-by: also add support for trivial bytecodes such as LdaFalse. Bug: v8:7790 Change-Id: I72626500096310899d37d57e3d0dd3bd54fddff4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1532066 Commit-Queue: Georg Neis <neis@chromium.org> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org> Cr-Commit-Position: refs/heads/master@{#60460}
229 lines
6.6 KiB
C++
229 lines
6.6 KiB
C++
// Copyright 2019 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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// Serializer tests don't make sense in lite mode, as it doesn't gather
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// IC feedback.
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#ifndef V8_LITE_MODE
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#include "test/cctest/compiler/serializer-tester.h"
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#include "src/api-inl.h"
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#include "src/compiler/serializer-for-background-compilation.h"
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#include "src/compiler/zone-stats.h"
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#include "src/optimized-compilation-info.h"
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#include "src/zone/zone.h"
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namespace v8 {
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namespace internal {
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namespace compiler {
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SerializerTester::SerializerTester(const char* source)
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: canonical_(main_isolate()) {
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// The tests only make sense in the context of concurrent compilation.
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FLAG_concurrent_inlining = true;
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// The tests don't make sense when optimizations are turned off.
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FLAG_opt = true;
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// We need the IC to feed it to the serializer.
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FLAG_use_ic = true;
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// We need manual control over when a given function is optimized.
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FLAG_always_opt = false;
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// We need allocation of executable memory for the compilation.
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FLAG_jitless = false;
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std::string function_string = "(function() { ";
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function_string += source;
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function_string += " })();";
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Handle<JSFunction> function = Handle<JSFunction>::cast(v8::Utils::OpenHandle(
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*v8::Local<v8::Function>::Cast(CompileRun(function_string.c_str()))));
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uint32_t flags = i::OptimizedCompilationInfo::kInliningEnabled |
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i::OptimizedCompilationInfo::kFunctionContextSpecializing |
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i::OptimizedCompilationInfo::kAccessorInliningEnabled |
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i::OptimizedCompilationInfo::kLoopPeelingEnabled |
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i::OptimizedCompilationInfo::kBailoutOnUninitialized |
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i::OptimizedCompilationInfo::kAllocationFoldingEnabled |
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i::OptimizedCompilationInfo::kSplittingEnabled |
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i::OptimizedCompilationInfo::kAnalyzeEnvironmentLiveness;
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Optimize(function, main_zone(), main_isolate(), flags, &broker_);
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function_ = JSFunctionRef(broker_, function);
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}
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TEST(SerializeEmptyFunction) {
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SerializerTester tester("function f() {}; return f;");
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CHECK(tester.function().IsSerializedForCompilation());
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}
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// This helper function allows for testing weather an inlinee candidate
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// was properly serialized. It expects that the top-level function (that is
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// run through the SerializerTester) will return its inlinee candidate.
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void CheckForSerializedInlinee(const char* source, int argc = 0,
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Handle<Object> argv[] = {}) {
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SerializerTester tester(source);
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JSFunctionRef f = tester.function();
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CHECK(f.IsSerializedForCompilation());
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MaybeHandle<Object> g_obj = Execution::Call(
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tester.isolate(), tester.function().object(),
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tester.isolate()->factory()->undefined_value(), argc, argv);
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Handle<Object> g;
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CHECK(g_obj.ToHandle(&g));
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Handle<JSFunction> g_func = Handle<JSFunction>::cast(g);
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SharedFunctionInfoRef g_sfi(tester.broker(),
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handle(g_func->shared(), tester.isolate()));
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FeedbackVectorRef g_fv(tester.broker(),
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handle(g_func->feedback_vector(), tester.isolate()));
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CHECK(g_sfi.IsSerializedForCompilation(g_fv));
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}
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TEST(SerializeInlinedClosure) {
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CheckForSerializedInlinee(
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"function f() {"
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" return (function g(){ return g; })();"
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"}; f(); return f;");
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}
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TEST(SerializeInlinedFunction) {
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CheckForSerializedInlinee(
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"function g() {};"
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"function f() {"
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" g(); return g;"
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"}; f(); return f;");
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}
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TEST(SerializeCallUndefinedReceiver) {
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CheckForSerializedInlinee(
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"function g(a,b,c) {};"
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"function f() {"
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" g(1,2,3); return g;"
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"}; f(); return f;");
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}
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TEST(SerializeCallUndefinedReceiver2) {
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CheckForSerializedInlinee(
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"function g(a,b) {};"
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"function f() {"
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" g(1,2); return g;"
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"}; f(); return f;");
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}
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TEST(SerializeCallProperty) {
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CheckForSerializedInlinee(
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"let obj = {"
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" g: function g(a,b,c) {}"
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"};"
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"function f() {"
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" obj.g(1,2,3); return obj.g;"
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"}; f(); return f;");
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}
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TEST(SerializeCallProperty2) {
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CheckForSerializedInlinee(
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"let obj = {"
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" g: function g(a,b) {}"
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"};"
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"function f() {"
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" obj.g(1,2); return obj.g;"
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"}; f(); return f;");
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}
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TEST(SerializeCallAnyReceiver) {
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CheckForSerializedInlinee(
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"let obj = {"
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" g: function g() {}"
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"};"
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"function f() {"
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" with(obj) {"
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" g(); return g;"
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" };"
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"};"
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"f(); return f;");
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}
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TEST(SerializeCallWithSpread) {
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CheckForSerializedInlinee(
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"function g(args) {};"
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"const arr = [1,2,3];"
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"function f() {"
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" g(...arr); return g;"
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"}; f(); return f;");
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}
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// The following test causes the CallIC of `g` to turn megamorphic,
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// thus allowing us to test if we forward arguments hints (`callee` in this
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// example) and correctly serialize the inlining candidate `j`.
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TEST(SerializeCallArguments) {
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CheckForSerializedInlinee(
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"function g(callee) { callee(); };"
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"function h() {};"
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"function i() {};"
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"g(h); g(i);"
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"function f() {"
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" function j() {};"
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" g(j);"
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" return j;"
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"}; f(); return f;");
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}
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TEST(SerializeConstruct) {
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CheckForSerializedInlinee(
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"function g() {};"
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"function f() {"
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" new g(); return g;"
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"}; f(); return f;");
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}
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TEST(SerializeConstructWithSpread) {
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CheckForSerializedInlinee(
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"function g(a, b, c) {};"
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"const arr = [1, 2];"
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"function f() {"
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" new g(0, ...arr); return g;"
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"}; f(); return f;");
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}
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TEST(SerializeConstructSuper) {
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CheckForSerializedInlinee(
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"class A {};"
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"class B extends A { constructor() { super(); } };"
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"function f() {"
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" new B(); return A;"
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"}; f(); return f;");
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}
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TEST(SerializeConditionalJump) {
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CheckForSerializedInlinee(
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"function g(callee) { callee(); };"
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"function h() {};"
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"function i() {};"
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"let a = true;"
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"g(h); g(i);"
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"function f() {"
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" function q() {};"
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" if (a) g(q);"
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" return q;"
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"}; f(); return f;");
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}
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TEST(SerializeUnconditionalJump) {
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CheckForSerializedInlinee(
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"function g(callee) { callee(); };"
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"function h() {};"
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"function i() {};"
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"let a = false;"
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"g(h); g(i);"
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"function f() {"
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" function p() {};"
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" function q() {};"
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" if (a) g(q);"
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" else g(p);"
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" return p;"
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"}; f(); return f;");
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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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#endif // V8_LITE_MODE
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