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| author | Elena Demikhovsky <elena.demikhovsky@intel.com> | 2016-09-20 11:02:26 +0000 |
|---|---|---|
| committer | Elena Demikhovsky <elena.demikhovsky@intel.com> | 2016-09-20 11:02:26 +0000 |
| commit | d3ff7c288b2a9374edaaab514dc0066e38c42ef0 (patch) | |
| tree | 30ed9c5298a09294cadf01d0fc45c1358493adc5 /llvm/lib/Target/X86/X86ISelLowering.cpp | |
| parent | e330cfa2945e864948946ef41e6f16fd1d9c140a (diff) | |
| download | bcm5719-llvm-d3ff7c288b2a9374edaaab514dc0066e38c42ef0.tar.gz bcm5719-llvm-d3ff7c288b2a9374edaaab514dc0066e38c42ef0.zip | |
AVX-512: Fixed a bug in lowering saturated operations on KNL.
The generated code is still not optimal.
Differential Revision: https://reviews.llvm.org/D24723
llvm-svn: 281966
Diffstat (limited to 'llvm/lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 0cf2e9948dc..becaddbdbe0 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -20867,10 +20867,13 @@ static SDValue LowerXALUO(SDValue Op, SelectionDAG &DAG) { SDValue Sum = DAG.getNode(X86ISD::UMUL, DL, VTs, LHS, RHS); SDValue SetCC = - DAG.getNode(X86ISD::SETCC, DL, N->getValueType(1), + DAG.getNode(X86ISD::SETCC, DL, MVT::i8, DAG.getConstant(X86::COND_O, DL, MVT::i32), SDValue(Sum.getNode(), 2)); + if (N->getValueType(1) == MVT::i1) + SetCC = DAG.getNode(ISD::TRUNCATE, DL, MVT::i1, SetCC); + return DAG.getNode(ISD::MERGE_VALUES, DL, N->getVTList(), Sum, SetCC); } } @@ -20880,10 +20883,13 @@ static SDValue LowerXALUO(SDValue Op, SelectionDAG &DAG) { SDValue Sum = DAG.getNode(BaseOp, DL, VTs, LHS, RHS); SDValue SetCC = - DAG.getNode(X86ISD::SETCC, DL, N->getValueType(1), + DAG.getNode(X86ISD::SETCC, DL, MVT::i8, DAG.getConstant(Cond, DL, MVT::i32), SDValue(Sum.getNode(), 1)); + if (N->getValueType(1) == MVT::i1) + SetCC = DAG.getNode(ISD::TRUNCATE, DL, MVT::i1, SetCC); + return DAG.getNode(ISD::MERGE_VALUES, DL, N->getVTList(), Sum, SetCC); } |
