[llvm] r341084 - [IR] fix declaration of shuffle mask

[Sanjay Patel via llvm-commits]

Author: spatel
Date: Thu Aug 30 09:44:07 2018
New Revision: 341084

URL: http://llvm.org/viewvc/llvm-project?rev=341084&view=rev
Log:
[IR] fix declaration of shuffle mask

An address sanitizer bot flagged this as a potential bug.

Modified:
    llvm/trunk/lib/IR/Instructions.cpp

Modified: llvm/trunk/lib/IR/Instructions.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/Instructions.cpp?rev=341084&r1=341083&r2=341084&view=diff
==============================================================================
--- llvm/trunk/lib/IR/Instructions.cpp (original)
+++ llvm/trunk/lib/IR/Instructions.cpp Thu Aug 30 09:44:07 2018
@@ -1780,7 +1780,7 @@ bool ShuffleVectorInst::isIdentityWithPa
     return false;
 
   // The first part of the mask must choose elements from exactly 1 source op.
-  ArrayRef<int> Mask = getShuffleMask();
+  SmallVector<int, 16> Mask = getShuffleMask();
   if (!isIdentityMaskImpl(Mask, NumOpElts))
     return false;