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author | Dimitry Andric <dim@FreeBSD.org> | 2022-07-24 15:11:41 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2023-02-08 19:04:38 +0000 |
commit | fcaf7f8644a9988098ac6be2165bce3ea4786e91 (patch) | |
tree | 08a554363df16b968a623d651c09d82a5a0b1c65 /contrib/llvm-project/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp | |
parent | 753f127f3ace09432b2baeffd71a308760641a62 (diff) | |
parent | 4b4fe385e49bd883fd183b5f21c1ea486c722e61 (diff) | |
download | src-fcaf7f8644a9988098ac6be2165bce3ea4786e91.tar.gz src-fcaf7f8644a9988098ac6be2165bce3ea4786e91.zip |
Diffstat (limited to 'contrib/llvm-project/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp')
-rw-r--r-- | contrib/llvm-project/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/contrib/llvm-project/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/contrib/llvm-project/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp index 4247cf557c2a..14c4fd3a9ffa 100644 --- a/contrib/llvm-project/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp +++ b/contrib/llvm-project/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp @@ -5473,7 +5473,8 @@ void PPCDAGToDAGISel::Select(SDNode *N) { } case ISD::MUL: { SDValue Op1 = N->getOperand(1); - if (Op1.getOpcode() != ISD::Constant || Op1.getValueType() != MVT::i64) + if (Op1.getOpcode() != ISD::Constant || + (Op1.getValueType() != MVT::i64 && Op1.getValueType() != MVT::i32)) break; // If the multiplier fits int16, we can handle it with mulli. @@ -5486,13 +5487,27 @@ void PPCDAGToDAGISel::Select(SDNode *N) { // (mul X, c1 << c2) -> (rldicr (mulli X, c1) c2). We do this in ISEL due to // DAGCombiner prefers (shl (mul X, c1), c2) -> (mul X, c1 << c2). uint64_t ImmSh = Imm >> Shift; - if (isInt<16>(ImmSh)) { - uint64_t SextImm = SignExtend64(ImmSh & 0xFFFF, 16); + if (!isInt<16>(ImmSh)) + break; + + uint64_t SextImm = SignExtend64(ImmSh & 0xFFFF, 16); + if (Op1.getValueType() == MVT::i64) { SDValue SDImm = CurDAG->getTargetConstant(SextImm, dl, MVT::i64); SDNode *MulNode = CurDAG->getMachineNode(PPC::MULLI8, dl, MVT::i64, N->getOperand(0), SDImm); - CurDAG->SelectNodeTo(N, PPC::RLDICR, MVT::i64, SDValue(MulNode, 0), - getI32Imm(Shift, dl), getI32Imm(63 - Shift, dl)); + + SDValue Ops[] = {SDValue(MulNode, 0), getI32Imm(Shift, dl), + getI32Imm(63 - Shift, dl)}; + CurDAG->SelectNodeTo(N, PPC::RLDICR, MVT::i64, Ops); + return; + } else { + SDValue SDImm = CurDAG->getTargetConstant(SextImm, dl, MVT::i32); + SDNode *MulNode = CurDAG->getMachineNode(PPC::MULLI, dl, MVT::i32, + N->getOperand(0), SDImm); + + SDValue Ops[] = {SDValue(MulNode, 0), getI32Imm(Shift, dl), + getI32Imm(0, dl), getI32Imm(31 - Shift, dl)}; + CurDAG->SelectNodeTo(N, PPC::RLWINM, MVT::i32, Ops); return; } break; |