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| author | Evan Cheng <evan.cheng@apple.com> | 2008-03-12 02:05:05 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-03-12 02:05:05 +0000 |
| commit | 0903aef2ffea0fa7333abdc6d4541471504cd963 (patch) | |
| tree | 76321bb694339930204ba5c5cd88c1b1d5df928c /llvm | |
| parent | 48a3410e25beb5277bfaad914f40aa9b22dc89d8 (diff) | |
| download | bcm5719-llvm-0903aef2ffea0fa7333abdc6d4541471504cd963.tar.gz bcm5719-llvm-0903aef2ffea0fa7333abdc6d4541471504cd963.zip | |
Total brain cramp.
llvm-svn: 48274
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 45929713369..5a6077a3ca1 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -1103,7 +1103,7 @@ SDOperand DAGCombiner::visitSUB(SDNode *N) { // fold (sub x, x) -> 0 if (N0 == N1) { - if (!AfterLegalize || !MVT::isVector(VT)) + if (AfterLegalize && ISD::isBuildVectorAllZeros(N0.Val)) // For example, zero vectors might be normalized to a particular vector // type to ensure they are CSE'd. Avoid issuing zero vector nodes of // *unexpected* type after legalization. |
