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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-03-21 12:41:18 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-03-21 12:41:18 +0000 |
| commit | 87d261bfd3f06789b7b9679d8f10fecccbbd328b (patch) | |
| tree | 69c9820453b678fdf6ef40c45b3557af53b533c3 /llvm/lib | |
| parent | 361b5b2193421824925a72669f1d06cd63c3d9a7 (diff) | |
| download | bcm5719-llvm-87d261bfd3f06789b7b9679d8f10fecccbbd328b.tar.gz bcm5719-llvm-87d261bfd3f06789b7b9679d8f10fecccbbd328b.zip | |
[Thumb] Fix infinite loop in ABS expansion (PR41160)
Don't expand ISD::ABS node if its legal.
llvm-svn: 356661
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMISelLowering.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Target/ARM/ARMISelLowering.cpp b/llvm/lib/Target/ARM/ARMISelLowering.cpp index be6d11a962a..36df387cd1b 100644 --- a/llvm/lib/Target/ARM/ARMISelLowering.cpp +++ b/llvm/lib/Target/ARM/ARMISelLowering.cpp @@ -10391,9 +10391,12 @@ static SDValue PerformABSCombine(SDNode *N, SelectionDAG &DAG = DCI.DAG; const TargetLowering &TLI = DAG.getTargetLoweringInfo(); - if (!TLI.expandABS(N, res, DAG)) + if (TLI.isOperationLegal(N->getOpcode(), N->getValueType(0))) return SDValue(); + if (!TLI.expandABS(N, res, DAG)) + return SDValue(); + return res; } |
