commit ec1bb4fdaf531cbca7b3707b867a6d40068f8ff9
author Benjamin Kramer <benny.kra@googlemail.com> Fri Apr 19 16:56:24 2013 +0000
committer Benjamin Kramer <benny.kra@googlemail.com> Fri Apr 19 16:56:24 2013 +0000
tree 378bbf484841a014c24192d242e990bbc35c76ed
parent 2fd1d7aee3cc168e0d9b78ca53fb2c1fc6684705

ConstantFolding: ComputeMaskedBits wants the scalar size for vectors.

Fixes PR15791.

llvm-svn: 179859

llvm/lib/Analysis/ConstantFolding.cpp

diff --git a/llvm/lib/Analysis/ConstantFolding.cpp b/llvm/lib/Analysis/ConstantFolding.cpp
index b5286e8..bc0dffc 100644
--- a/llvm/lib/Analysis/ConstantFolding.cpp
+++ b/llvm/lib/Analysis/ConstantFolding.cpp
@@ -551,7 +551,7 @@
 
 
   if (Opc == Instruction::And && DL) {
-    unsigned BitWidth = DL->getTypeSizeInBits(Op0->getType());
+    unsigned BitWidth = DL->getTypeSizeInBits(Op0->getType()->getScalarType());
     APInt KnownZero0(BitWidth, 0), KnownOne0(BitWidth, 0);
     APInt KnownZero1(BitWidth, 0), KnownOne1(BitWidth, 0);
     ComputeMaskedBits(Op0, KnownZero0, KnownOne0, DL);