[llvm] r294864 - [X86][SSE] Add early-out when trying to match blend shuffle. NFCI.

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Sat Feb 11 12:06:24 2017
New Revision: 294864

URL: http://llvm.org/viewvc/llvm-project?rev=294864&view=rev
Log:
[X86][SSE] Add early-out when trying to match blend shuffle. NFCI.

Modified:
    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=294864&r1=294863&r2=294864&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Sat Feb 11 12:06:24 2017
@@ -26684,10 +26684,11 @@ static bool matchBinaryPermuteVectorShuf
         int M = Mask[i];
         if (M == SM_SentinelUndef)
           continue;
-        else if (M == SM_SentinelZero)
-          MatchBlend = false;
-        else if ((M != i) && (M != (i + (int)NumMaskElts)))
+        if ((M == SM_SentinelZero) ||
+            ((M != i) && (M != (i + (int)NumMaskElts)))) {
           MatchBlend = false;
+          break;
+        }
       }
 
       if (MatchBlend) {