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| author | Dan Gohman <gohman@apple.com> | 2009-09-25 00:57:30 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-09-25 00:57:30 +0000 |
| commit | 6acaaa8f32a52772952c2171ad8ee1f7a896a1c9 (patch) | |
| tree | 07778c8bdbd299408a06072492c0b94f1aefc270 | |
| parent | 8fc13cb4f7a2997f993ffdfe6e488046ec6c834e (diff) | |
Don't try to use pre-indexed addressing with sthbrx/stwbrx
instructions. This fixes a PowerPC bug exposed by some unrelated
changes I'm working on.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82743 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/PowerPC/PPCISelLowering.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp index 88e2b0724f..3b05679364 100644 --- a/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/lib/Target/PowerPC/PPCISelLowering.cpp @@ -4921,7 +4921,8 @@ SDValue PPCTargetLowering::PerformDAGCombine(SDNode *N, } // Turn STORE (BSWAP) -> sthbrx/stwbrx. - if (N->getOperand(1).getOpcode() == ISD::BSWAP && + if (cast<StoreSDNode>(N)->isUnindexed() && + N->getOperand(1).getOpcode() == ISD::BSWAP && N->getOperand(1).getNode()->hasOneUse() && (N->getOperand(1).getValueType() == MVT::i32 || N->getOperand(1).getValueType() == MVT::i16)) { |