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Doh
author
Evan Cheng
<evan.cheng@apple.com>
Mon, 10 Mar 2008 07:59:01 +0000
(07:59 +0000)
committer
Evan Cheng
<evan.cheng@apple.com>
Mon, 10 Mar 2008 07:59:01 +0000
(07:59 +0000)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48140
91177308
-0d34-0410-b5e6-
96231b3b80d8
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
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diff --git
a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 1b00855a671aad781dda47b5edbd43aae4130d00..3a8c46815c8d99cf60834047411dde5fb5acf622 100644
(file)
--- a/
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@
-1102,12
+1102,13
@@
SDOperand DAGCombiner::visitSUB(SDNode *N) {
}
// fold (sub x, x) -> 0
- if (N0 == N1)
+ if (N0 == N1)
{
if (ISD::isBuildVectorAllZeros(N0.Val))
// Zero vectors might be normalized to a particular vector type to ensure
// they are CSE'd. Return it as it is.
return N0;
return DAG.getConstant(0, N->getValueType(0));
+ }
// fold (sub c1, c2) -> c1-c2
if (N0C && N1C)
return DAG.getNode(ISD::SUB, VT, N0, N1);