diff options
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index b0c64a1bd8a..55024c38acd 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -8538,22 +8538,15 @@ static SDValue LowerBUILD_VECTORvXi1(SDValue Op, SelectionDAG &DAG, // insert elements one by one SDValue DstVec; - SDValue Imm; - if (Immediate) { - MVT ImmVT = MVT::getIntegerVT(std::max((int)VT.getSizeInBits(), 8)); - Imm = DAG.getConstant(Immediate, dl, ImmVT); - } - else if (HasConstElts) - Imm = DAG.getConstant(0, dl, VT); - else - Imm = DAG.getUNDEF(VT); - if (Imm.getValueSizeInBits() == VT.getSizeInBits()) - DstVec = DAG.getBitcast(VT, Imm); - else { - SDValue ExtVec = DAG.getBitcast(MVT::v8i1, Imm); - DstVec = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, VT, ExtVec, + if (HasConstElts) { + MVT ImmVT = MVT::getIntegerVT(std::max(VT.getSizeInBits(), 8U)); + SDValue Imm = DAG.getConstant(Immediate, dl, ImmVT); + MVT VecVT = VT.getSizeInBits() >= 8 ? VT : MVT::v8i1; + DstVec = DAG.getBitcast(VecVT, Imm); + DstVec = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, VT, DstVec, DAG.getIntPtrConstant(0, dl)); - } + } else + DstVec = DAG.getUNDEF(VT); for (unsigned i = 0, e = NonConstIdx.size(); i != e; ++i) { unsigned InsertIdx = NonConstIdx[i]; |
