commit fdb230a154ead49cf0ded5b4587be994ec2f43e0
author Rafael Espindola <rafael.espindola@gmail.com> Tue Apr 10 00:16:22 2012 +0000
committer Rafael Espindola <rafael.espindola@gmail.com> Tue Apr 10 00:16:22 2012 +0000
tree 5f06fe3d706c779f383e7b64a0e7500449c6c714
parent 2d620c571cb53993b788893b6ef73a6e2805411f

Don't try to zExt just to check if an integer constant is zero, it might
not fit in a i64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154364 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/SelectionDAG/DAGCombiner.cpp

diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index dbc1ca9..cf7ce58 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -4431,9 +4431,9 @@
 
   ConstantSDNode *COp0 = dyn_cast<ConstantSDNode>(Op0);
   ConstantSDNode *COp1 = dyn_cast<ConstantSDNode>(Op1);
-  if (COp0 && COp0->getZExtValue() == 0)
+  if (COp0 && COp0->isNullValue())
     Op = Op1;
-  else if (COp1 && COp1->getZExtValue() == 0)
+  else if (COp1 && COp1->isNullValue())
     Op = Op0;
   else
     return false;