diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86ISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 27 |
1 files changed, 4 insertions, 23 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index bd378cfd232..c48158072e0 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -1404,12 +1404,12 @@ X86TargetLowering::X86TargetLowering(const X86TargetMachine &TM, } // Subtarget.hasCDI() if (Subtarget.hasDQI()) { - if (Subtarget.hasVLX()) { - setOperationAction(ISD::MUL, MVT::v2i64, Legal); - setOperationAction(ISD::MUL, MVT::v4i64, Legal); - } + // NonVLX sub-targets extend 128/256 vectors to use the 512 version. + setOperationAction(ISD::MUL, MVT::v2i64, Legal); + setOperationAction(ISD::MUL, MVT::v4i64, Legal); setOperationAction(ISD::MUL, MVT::v8i64, Legal); } + // Custom lower several nodes. for (auto VT : { MVT::v4i32, MVT::v8i32, MVT::v2i64, MVT::v4i64, MVT::v4f32, MVT::v8f32, MVT::v2f64, MVT::v4f64 }) { @@ -19854,25 +19854,6 @@ static SDValue LowerMUL(SDValue Op, const X86Subtarget &Subtarget, assert((VT == MVT::v2i64 || VT == MVT::v4i64 || VT == MVT::v8i64) && "Only know how to lower V2I64/V4I64/V8I64 multiply"); - // AVX512DQ - extend to 512 bit vector. - // FIXME: This can possibly be converted to a tablegen pattern. - if (Subtarget.hasDQI()) { - assert(!Subtarget.hasVLX() && "AVX512DQVL vXi64 multiply is legal"); - assert((VT == MVT::v2i64 || VT == MVT::v4i64) && - "AVX512DQ v8i64 multiply is legal"); - - MVT NewVT = MVT::getVectorVT(MVT::i64, 512 / VT.getScalarSizeInBits()); - SDValue A512 = - DAG.getNode(ISD::INSERT_SUBVECTOR, dl, NewVT, DAG.getUNDEF(NewVT), A, - DAG.getIntPtrConstant(0, dl)); - SDValue B512 = - DAG.getNode(ISD::INSERT_SUBVECTOR, dl, NewVT, DAG.getUNDEF(NewVT), B, - DAG.getIntPtrConstant(0, dl)); - SDValue MulNode = DAG.getNode(ISD::MUL, dl, NewVT, A512, B512); - return DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, VT, MulNode, - DAG.getIntPtrConstant(0, dl)); - } - // Ahi = psrlqi(a, 32); // Bhi = psrlqi(b, 32); // |
