diff options
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 6 | ||||
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.h | 3 |
2 files changed, 9 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 04de45c8ad2..d1e0f690913 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -5011,6 +5011,12 @@ bool X86TargetLowering::hasAndNot(SDValue Y) const { return Subtarget.hasSSE2(); } +bool X86TargetLowering::shouldFoldConstantShiftPairToMask( + const SDNode *N, CombineLevel Level) const { + // TODO - some targets prefer immediate vector shifts to shift+mask. + return TargetLoweringBase::shouldFoldConstantShiftPairToMask(N, Level); +} + bool X86TargetLowering::shouldFoldMaskToVariableShiftPair(SDValue Y) const { EVT VT = Y.getValueType(); diff --git a/llvm/lib/Target/X86/X86ISelLowering.h b/llvm/lib/Target/X86/X86ISelLowering.h index 1742e743f05..ac787f807aa 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.h +++ b/llvm/lib/Target/X86/X86ISelLowering.h @@ -814,6 +814,9 @@ namespace llvm { bool hasAndNot(SDValue Y) const override; + bool shouldFoldConstantShiftPairToMask(const SDNode *N, + CombineLevel Level) const override; + bool shouldFoldMaskToVariableShiftPair(SDValue Y) const override; bool |
