From: Craig Topper <craig.topper@gmail.com>
Date: Sat, 5 Dec 2015 07:13:25 +0000 (+0000)
Subject: Use std::fill instead of memset to initialize an array to avoid hardcoded count and... 
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=83f50fab5317ea62c8298a82c1de5054d5795ac9;p=oota-llvm.git

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254842 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h
index e247abcb2f7..e99c9f758f8 100644
--- a/include/llvm/Target/TargetLowering.h
+++ b/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();
   }