commit 51897bcd3eead808ec85318b64d42cdda75b9e21
author Benjamin Kramer <benny.kra@googlemail.com> Fri Mar 11 11:37:40 2011 +0000
committer Benjamin Kramer <benny.kra@googlemail.com> Fri Mar 11 11:37:40 2011 +0000
tree c27a23c749f4a6b886648e45a1d44901bc781037
parent cc799738560bc8fc0acc7438e508223539ebc43c

InstCombine: Fix a thinko where transform an icmp under the assumption that it's a zero comparison when it's not.

Fixes PR9454.

llvm-svn: 127464

llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp

diff --git a/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp b/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
index 97abc76..8b9261b 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
@@ -503,9 +503,8 @@
   if (!IC || !IC->isEquality())
     return 0;
 
-  if (ConstantInt *C = dyn_cast<ConstantInt>(IC->getOperand(1)))
-    if (!C->isZero())
-      return 0;
+  if (!match(IC->getOperand(1), m_Zero()))
+    return 0;
 
   ConstantInt *AndRHS;
   Value *LHS = IC->getOperand(0);