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| author | Anton Korobeynikov <asl@math.spbu.ru> | 2011-10-08 08:38:45 +0000 |
|---|---|---|
| committer | Anton Korobeynikov <asl@math.spbu.ru> | 2011-10-08 08:38:45 +0000 |
| commit | 2d4b60f3a40d4a1d60d43f5bb94c3c3dd19a6fc5 (patch) | |
| tree | 32b037981c9cbb5a293dbb83e94939ba3161fdcb /lib/Target/ARM/ARMISelDAGToDAG.cpp | |
| parent | 4391bb75ecce0fe06dc6af8ad05b737da6a088e0 (diff) | |
Disable ABS optimization for Thumb1 target, we don't have necessary instructions there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141481 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMISelDAGToDAG.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMISelDAGToDAG.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp index 8b34fa11f4..5ee009c04c 100644 --- a/lib/Target/ARM/ARMISelDAGToDAG.cpp +++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp @@ -2322,6 +2322,9 @@ SDNode *ARMDAGToDAGISel::SelectABSOp(SDNode *N){ if (DisableARMIntABS) return NULL; + if (Subtarget->isThumb1Only()) + return NULL; + if (XORSrc0.getOpcode() != ISD::ADD || XORSrc1.getOpcode() != ISD::SRA) return NULL; |