Use std::fill instead of memset to initialize an array to avoid hardcoded count and a multiply. The outputed code is identical.

llvm-svn: 254842

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/include/llvm/Target/TargetLowering.h b/llvm/include/llvm/Target/TargetLowering.h
index e247abcb2f7..e99c9f758f8 100644
--- a/llvm/include/llvm/Target/TargetLowering.h
+++ b/llvm/include/llvm/Target/TargetLowering.h
@@ -1293,7 +1293,7 @@ protected:
 
   /// Remove all register classes.
   void clearRegisterClasses() {
-    memset(RegClassForVT, 0,MVT::LAST_VALUETYPE * sizeof(TargetRegisterClass*));
+    std::fill(std::begin(RegClassForVT), std::end(RegClassForVT), nullptr);
 
     AvailableRegClasses.clear();
   }