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0f5c40aa77
Summary: [llvm-exegesis][RFC] Automatic Measurement of Instruction Latency/Uops This is the code corresponding to the RFC "llvm-exegesis Automatic Measurement of Instruction Latency/Uops". The RFC is available on the LLVM mailing lists as well as the following document for easier reading: https://docs.google.com/document/d/1QidaJMJUyQdRrFKD66vE1_N55whe0coQ3h1GpFzz27M/edit?usp=sharing Subscribers: mgorny, gchatelet, orwant, llvm-commits Differential Revision: https://reviews.llvm.org/D44519 llvm-svn: 329156
48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
//===-- PerfHelperTest.cpp --------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "PerfHelper.h"
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#include "llvm/Config/config.h"
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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namespace exegesis {
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namespace pfm {
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namespace {
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using ::testing::IsEmpty;
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using ::testing::Not;
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TEST(PerfHelperTest, FunctionalTest) {
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#ifdef HAVE_LIBPFM
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ASSERT_FALSE(pfmInitialize());
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const PerfEvent SingleEvent("CYCLES:u");
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const auto &EmptyFn = []() {};
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std::string CallbackEventName;
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std::string CallbackEventNameFullyQualifed;
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int64_t CallbackEventCycles;
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Measure(llvm::makeArrayRef(SingleEvent),
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[&](const PerfEvent &Event, int64_t Value) {
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CallbackEventName = Event.name();
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CallbackEventNameFullyQualifed = Event.getPfmEventString();
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CallbackEventCycles = Value;
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},
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EmptyFn);
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EXPECT_EQ(CallbackEventName, "CYCLES:u");
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EXPECT_THAT(CallbackEventNameFullyQualifed, Not(IsEmpty()));
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pfmTerminate();
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#else
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ASSERT_TRUE(PfmInitialize());
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#endif
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}
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} // namespace
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} // namespace pfm
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} // namespace exegesis
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