e61922d327
To avoid issue like https://github.com/llvm/llvm-project/issues/56554
and https://github.com/llvm/llvm-project/issues/83236 due to no
guarantees for nested relationships between file level span and syntax
tree level span, I'd like to have a `timeTraceAsyncProfilerBegin`
specific to trace handling only `Source` spans around
8715f25691/clang/lib/Sema/Sema.cpp (L153-L170).
This is a preparation PR to do that in [following
PR](https://github.com/llvm/llvm-project/pull/83961).
76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
//===- unittests/TimeProfilerTest.cpp - TimeProfiler tests ----------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// These are bare-minimum 'smoke' tests of the time profiler. Not tested:
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// - multi-threading
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// - 'Total' entries
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// - elision of short or ill-formed entries
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// - detail callback
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// - no calls to now() if profiling is disabled
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// - suppression of contributions to total entries for nested entries
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/TimeProfiler.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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void setupProfiler() {
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timeTraceProfilerInitialize(/*TimeTraceGranularity=*/0, "test");
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}
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std::string teardownProfiler() {
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SmallVector<char, 1024> smallVector;
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raw_svector_ostream os(smallVector);
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timeTraceProfilerWrite(os);
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timeTraceProfilerCleanup();
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return os.str().str();
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}
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TEST(TimeProfiler, Scope_Smoke) {
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setupProfiler();
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{ TimeTraceScope scope("event", "detail"); }
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std::string json = teardownProfiler();
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ASSERT_TRUE(json.find(R"("name":"event")") != std::string::npos);
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ASSERT_TRUE(json.find(R"("detail":"detail")") != std::string::npos);
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}
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TEST(TimeProfiler, Begin_End_Smoke) {
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setupProfiler();
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timeTraceProfilerBegin("event", "detail");
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timeTraceProfilerEnd();
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std::string json = teardownProfiler();
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ASSERT_TRUE(json.find(R"("name":"event")") != std::string::npos);
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ASSERT_TRUE(json.find(R"("detail":"detail")") != std::string::npos);
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}
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TEST(TimeProfiler, Async_Begin_End_Smoke) {
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setupProfiler();
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auto *Profiler = timeTraceAsyncProfilerBegin("event", "detail");
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timeTraceProfilerEnd(Profiler);
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std::string json = teardownProfiler();
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ASSERT_TRUE(json.find(R"("name":"event")") != std::string::npos);
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ASSERT_TRUE(json.find(R"("detail":"detail")") != std::string::npos);
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}
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TEST(TimeProfiler, Begin_End_Disabled) {
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// Nothing should be observable here. The test is really just making sure
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// we've not got a stray nullptr deref.
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timeTraceProfilerBegin("event", "detail");
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timeTraceProfilerEnd();
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}
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} // namespace
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