[llvm-exegesis][NFC] Fix a few warnings.

llvm-svn: 329174

2 files changed, 4 insertions, 1 deletions

diff --git a/llvm/tools/llvm-exegesis/lib/Latency.cpp b/llvm/tools/llvm-exegesis/lib/Latency.cpp
index b28b81cc940..770b928112e 100644
--- a/llvm/tools/llvm-exegesis/lib/Latency.cpp
+++ b/llvm/tools/llvm-exegesis/lib/Latency.cpp
@@ -89,7 +89,7 @@ LatencyBenchmarkRunner::runMeasurements(const LLVMState &State,
     if (Value < MinLatency)
       MinLatency = Value;
   }
-  return {{"latency", static_cast<double>(MinLatency) / NumRepetitions}};
+  return {{"latency", static_cast<double>(MinLatency) / NumRepetitions, ""}};
 }
 
 } // namespace exegesis
diff --git a/llvm/tools/llvm-exegesis/lib/PerfHelper.h b/llvm/tools/llvm-exegesis/lib/PerfHelper.h
index 22da2061c52..8c3f13e6c5c 100644
--- a/llvm/tools/llvm-exegesis/lib/PerfHelper.h
+++ b/llvm/tools/llvm-exegesis/lib/PerfHelper.h
@@ -17,6 +17,7 @@
 
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/StringRef.h"
+#include "llvm/Config/config.h"
 #include <functional>
 #include <memory>
 
@@ -76,7 +77,9 @@ struct Counter {
   int64_t read() const; // Return the current value of the counter.
 
 private:
+#ifdef HAVE_LIBPFM
   int FileDescriptor = -1;
+#endif
 };
 
 // Helper to measure a list of PerfEvent for a particular function.