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0f55045526
This patch pulls google/benchmark v1.4.1 into the LLVM tree so that any project could use it for benchmark generation. A dummy benchmark is added to `llvm/benchmarks/DummyYAML.cpp` to validate the correctness of the build process. The current version does not utilize LLVM LNT and LLVM CMake infrastructure, but that might be sufficient for most users. Two introduced CMake variables: * `LLVM_INCLUDE_BENCHMARKS` (`ON` by default) generates benchmark targets * `LLVM_BUILD_BENCHMARKS` (`OFF` by default) adds generated benchmark targets to the list of default LLVM targets (i.e. if `ON` benchmarks will be built upon standard build invocation, e.g. `ninja` or `make` with no specific targets) List of modifications: * `BENCHMARK_ENABLE_TESTING` is disabled * `BENCHMARK_ENABLE_EXCEPTIONS` is disabled * `BENCHMARK_ENABLE_INSTALL` is disabled * `BENCHMARK_ENABLE_GTEST_TESTS` is disabled * `BENCHMARK_DOWNLOAD_DEPENDENCIES` is disabled Original discussion can be found here: http://lists.llvm.org/pipermail/llvm-dev/2018-August/125023.html Reviewed by: dberris, lebedev.ri Subscribers: ilya-biryukov, ioeric, EricWF, lebedev.ri, srhines, dschuff, mgorny, krytarowski, fedor.sergeev, mgrang, jfb, llvm-commits Differential Revision: https://reviews.llvm.org/D50894 llvm-svn: 340809
81 lines
1.8 KiB
C++
81 lines
1.8 KiB
C++
// Testing:
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// State::PauseTiming()
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// State::ResumeTiming()
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// Test that CHECK's within these function diagnose when they are called
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// outside of the KeepRunning() loop.
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//
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// NOTE: Users should NOT include or use src/check.h. This is only done in
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// order to test library internals.
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#include <cstdlib>
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#include <stdexcept>
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#include "../src/check.h"
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#include "benchmark/benchmark.h"
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#if defined(__GNUC__) && !defined(__EXCEPTIONS)
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#define TEST_HAS_NO_EXCEPTIONS
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#endif
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void TestHandler() {
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#ifndef TEST_HAS_NO_EXCEPTIONS
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throw std::logic_error("");
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#else
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std::abort();
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#endif
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}
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void try_invalid_pause_resume(benchmark::State& state) {
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#if !defined(TEST_BENCHMARK_LIBRARY_HAS_NO_ASSERTIONS) && !defined(TEST_HAS_NO_EXCEPTIONS)
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try {
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state.PauseTiming();
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std::abort();
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} catch (std::logic_error const&) {
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}
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try {
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state.ResumeTiming();
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std::abort();
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} catch (std::logic_error const&) {
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}
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#else
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(void)state; // avoid unused warning
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#endif
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}
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void BM_diagnostic_test(benchmark::State& state) {
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static bool called_once = false;
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if (called_once == false) try_invalid_pause_resume(state);
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for (auto _ : state) {
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benchmark::DoNotOptimize(state.iterations());
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}
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if (called_once == false) try_invalid_pause_resume(state);
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called_once = true;
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}
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BENCHMARK(BM_diagnostic_test);
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void BM_diagnostic_test_keep_running(benchmark::State& state) {
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static bool called_once = false;
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if (called_once == false) try_invalid_pause_resume(state);
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while(state.KeepRunning()) {
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benchmark::DoNotOptimize(state.iterations());
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}
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if (called_once == false) try_invalid_pause_resume(state);
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called_once = true;
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}
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BENCHMARK(BM_diagnostic_test_keep_running);
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int main(int argc, char* argv[]) {
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benchmark::internal::GetAbortHandler() = &TestHandler;
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benchmark::Initialize(&argc, argv);
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benchmark::RunSpecifiedBenchmarks();
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}
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