diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 64e0db1e70f..f57da0a1d6f 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -15119,13 +15119,32 @@ SDValue X86TargetLowering::LowerSELECT(SDValue Op, SelectionDAG &DAG) const { return DAG.getNode(X86ISD::CMOV, DL, VTs, Ops); } -static SDValue LowerSIGN_EXTEND_AVX512(SDValue Op, SelectionDAG &DAG) { +static SDValue LowerSIGN_EXTEND_AVX512(SDValue Op, const X86Subtarget *Subtarget, + SelectionDAG &DAG) { MVT VT = Op->getSimpleValueType(0); SDValue In = Op->getOperand(0); MVT InVT = In.getSimpleValueType(); + MVT VTElt = VT.getVectorElementType(); + MVT InVTElt = InVT.getVectorElementType(); SDLoc dl(Op); + // SKX processor + if ((InVTElt == MVT::i1) && + (((Subtarget->hasBWI() && Subtarget->hasVLX() && + VT.getSizeInBits() <= 256 && VTElt.getSizeInBits() <= 16)) || + + ((Subtarget->hasBWI() && VT.is512BitVector() && + VTElt.getSizeInBits() <= 16)) || + + ((Subtarget->hasDQI() && Subtarget->hasVLX() && + VT.getSizeInBits() <= 256 && VTElt.getSizeInBits() >= 32)) || + + ((Subtarget->hasDQI() && VT.is512BitVector() && + VTElt.getSizeInBits() >= 32)))) + return DAG.getNode(X86ISD::VSEXT, dl, VT, In); + unsigned int NumElts = VT.getVectorNumElements(); + if (NumElts != 8 && NumElts != 16) return SDValue(); @@ -15158,7 +15177,7 @@ static SDValue LowerSIGN_EXTEND(SDValue Op, const X86Subtarget *Subtarget, SDLoc dl(Op); if (VT.is512BitVector() || InVT.getVectorElementType() == MVT::i1) - return LowerSIGN_EXTEND_AVX512(Op, DAG); + return LowerSIGN_EXTEND_AVX512(Op, Subtarget, DAG); if ((VT != MVT::v4i64 || InVT != MVT::v4i32) && (VT != MVT::v8i32 || InVT != MVT::v8i16) && |
