commit 33b554795def5cd50f961721acbb33246226824b
author Cameron Zwarich <zwarich@apple.com> Fri Feb 25 01:10:55 2011 +0000
committer Cameron Zwarich <zwarich@apple.com> Fri Feb 25 01:10:55 2011 +0000
tree 0bb4b808db4814447ceb640c95b7c001dd5b60d1
parent 57f1e2cee06f9b57995727d786aeb1031c5376bd

We only want to zero extend the existing information if the bit width is
actually larger.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126464 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp

diff --git a/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp b/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
index 82b6c40..3cab795 100644
--- a/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
+++ b/lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
@@ -269,7 +269,7 @@
   if (!LOI->IsValid)
     return NULL;
 
-  if (BitWidth >= LOI->KnownZero.getBitWidth()) {
+  if (BitWidth > LOI->KnownZero.getBitWidth()) {
     LOI->KnownZero = LOI->KnownZero.zextOrTrunc(BitWidth);
     LOI->KnownOne = LOI->KnownOne.zextOrTrunc(BitWidth);
   }