83849da70f
BUG=v8:5294 Change-Id: If45f25aae8de526027b7851cb4efe0ccf4a7c4b1 Reviewed-on: https://chromium-review.googlesource.com/444226 Commit-Queue: Marja Hölttä <marja@chromium.org> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#43388}
114 lines
2.7 KiB
C++
114 lines
2.7 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/basic-block-profiler.h"
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#include "src/objects-inl.h"
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#include "test/cctest/cctest.h"
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#include "test/cctest/compiler/codegen-tester.h"
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namespace v8 {
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namespace internal {
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namespace compiler {
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class BasicBlockProfilerTest : public RawMachineAssemblerTester<int32_t> {
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public:
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BasicBlockProfilerTest()
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: RawMachineAssemblerTester<int32_t>(MachineType::Int32()) {
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FLAG_turbo_profiling = true;
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}
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void ResetCounts() { isolate()->basic_block_profiler()->ResetCounts(); }
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void Expect(size_t size, uint32_t* expected) {
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CHECK(isolate()->basic_block_profiler());
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const BasicBlockProfiler::DataList* l =
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isolate()->basic_block_profiler()->data_list();
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CHECK_NE(0, static_cast<int>(l->size()));
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const BasicBlockProfiler::Data* data = l->back();
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CHECK_EQ(static_cast<int>(size), static_cast<int>(data->n_blocks()));
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const uint32_t* counts = data->counts();
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for (size_t i = 0; i < size; ++i) {
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CHECK_EQ(static_cast<int>(expected[i]), static_cast<int>(counts[i]));
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}
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}
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};
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TEST(ProfileDiamond) {
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BasicBlockProfilerTest m;
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RawMachineLabel blocka, blockb, end;
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m.Branch(m.Parameter(0), &blocka, &blockb);
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m.Bind(&blocka);
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m.Goto(&end);
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m.Bind(&blockb);
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m.Goto(&end);
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m.Bind(&end);
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m.Return(m.Int32Constant(0));
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m.GenerateCode();
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{
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uint32_t expected[] = {0, 0, 0, 0};
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m.Expect(arraysize(expected), expected);
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}
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m.Call(0);
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{
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uint32_t expected[] = {1, 1, 0, 1};
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m.Expect(arraysize(expected), expected);
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}
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m.ResetCounts();
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m.Call(1);
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{
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uint32_t expected[] = {1, 0, 1, 1};
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m.Expect(arraysize(expected), expected);
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}
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m.Call(0);
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{
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uint32_t expected[] = {2, 1, 1, 2};
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m.Expect(arraysize(expected), expected);
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}
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}
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TEST(ProfileLoop) {
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BasicBlockProfilerTest m;
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RawMachineLabel header, body, end;
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Node* one = m.Int32Constant(1);
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m.Goto(&header);
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m.Bind(&header);
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Node* count = m.Phi(MachineRepresentation::kWord32, m.Parameter(0), one);
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m.Branch(count, &body, &end);
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m.Bind(&body);
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count->ReplaceInput(1, m.Int32Sub(count, one));
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m.Goto(&header);
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m.Bind(&end);
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m.Return(one);
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m.GenerateCode();
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{
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uint32_t expected[] = {0, 0, 0, 0};
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m.Expect(arraysize(expected), expected);
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}
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uint32_t runs[] = {0, 1, 500, 10000};
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for (size_t i = 0; i < arraysize(runs); i++) {
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m.ResetCounts();
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CHECK_EQ(1, m.Call(static_cast<int>(runs[i])));
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uint32_t expected[] = {1, runs[i] + 1, runs[i], 1};
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m.Expect(arraysize(expected), expected);
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}
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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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