commit eb733d2a1b8683f5cb3558160cb03a442f46e46e
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 90bc31ddcdad71e556275c088348f7a635f69bbe
parent 89ab4e4cd0627be8b779c6a1e7023e9ea58c4b09

ConstantFolding: ComputeMaskedBits wants the scalar size for vectors.

Fixes PR15791.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179859 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Analysis/ConstantFolding.cpp

diff --git a/lib/Analysis/ConstantFolding.cpp b/lib/Analysis/ConstantFolding.cpp
index b5286e8..bc0dffc 100644
--- a/lib/Analysis/ConstantFolding.cpp
+++ b/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);