diff options
Diffstat (limited to 'llvm/tools/llvm-exegesis/lib/Latency.cpp')
| -rw-r--r-- | llvm/tools/llvm-exegesis/lib/Latency.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/tools/llvm-exegesis/lib/Latency.cpp b/llvm/tools/llvm-exegesis/lib/Latency.cpp index e2aae970e22..731efbf5515 100644 --- a/llvm/tools/llvm-exegesis/lib/Latency.cpp +++ b/llvm/tools/llvm-exegesis/lib/Latency.cpp @@ -108,6 +108,7 @@ const char *LatencyBenchmarkRunner::getCounterName() const { std::vector<BenchmarkMeasure> LatencyBenchmarkRunner::runMeasurements(const ExecutableFunction &Function, + ScratchSpace &Scratch, const unsigned NumRepetitions) const { // Cycle measurements include some overhead from the kernel. Repeat the // measure several times and take the minimum value. @@ -121,8 +122,9 @@ LatencyBenchmarkRunner::runMeasurements(const ExecutableFunction &Function, llvm::report_fatal_error("invalid perf event"); for (size_t I = 0; I < NumMeasurements; ++I) { pfm::Counter Counter(CyclesPerfEvent); + Scratch.clear(); Counter.start(); - Function(); + Function(Scratch.ptr()); Counter.stop(); const int64_t Value = Counter.read(); if (Value < MinLatency) |
