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73 changes: 72 additions & 1 deletion llvm/lib/Target/RISCV/RISCVVLOptimizer.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -341,11 +341,17 @@ static OperandInfo getOperandInfo(const MachineInstr &MI,
case RISCV::VNMSUB_VV:
case RISCV::VNMSUB_VX:
// Vector Integer Merge Instructions
// Vector Integer Add-with-Carry / Subtract-with-Borrow Instructions
// EEW=SEW and EMUL=LMUL, except the mask operand has EEW=1 and EMUL=
// (EEW/SEW)*LMUL. Mask operand is handled before this switch.
case RISCV::VMERGE_VIM:
case RISCV::VMERGE_VVM:
case RISCV::VMERGE_VXM:
case RISCV::VADC_VIM:
case RISCV::VADC_VVM:
case RISCV::VADC_VXM:
case RISCV::VSBC_VVM:
case RISCV::VSBC_VXM:
// Vector Integer Move Instructions
// Vector Fixed-Point Arithmetic Instructions
// Vector Single-Width Saturating Add and Subtract
Expand Down Expand Up @@ -521,6 +527,47 @@ static OperandInfo getOperandInfo(const MachineInstr &MI,
return OperandInfo(RISCVVType::getEMULEqualsEEWDivSEWTimesLMUL(0, MI), 0);
}

// Vector Integer Compare Instructions
// Dest EEW=1 and EMUL=(EEW/SEW)*LMUL. Source EEW=SEW and EMUL=LMUL.
case RISCV::VMSEQ_VI:
case RISCV::VMSEQ_VV:
case RISCV::VMSEQ_VX:
case RISCV::VMSNE_VI:
case RISCV::VMSNE_VV:
case RISCV::VMSNE_VX:
case RISCV::VMSLTU_VV:
case RISCV::VMSLTU_VX:
case RISCV::VMSLT_VV:
case RISCV::VMSLT_VX:
case RISCV::VMSLEU_VV:
case RISCV::VMSLEU_VI:
case RISCV::VMSLEU_VX:
case RISCV::VMSLE_VV:
case RISCV::VMSLE_VI:
case RISCV::VMSLE_VX:
case RISCV::VMSGTU_VI:
case RISCV::VMSGTU_VX:
case RISCV::VMSGT_VI:
case RISCV::VMSGT_VX:
// Vector Integer Add-with-Carry / Subtract-with-Borrow Instructions
// Dest EEW=1 and EMUL=(EEW/SEW)*LMUL. Source EEW=SEW and EMUL=LMUL. Mask
// source operand handled above this switch.
case RISCV::VMADC_VIM:
case RISCV::VMADC_VVM:
case RISCV::VMADC_VXM:
case RISCV::VMSBC_VVM:
case RISCV::VMSBC_VXM:
// Dest EEW=1 and EMUL=(EEW/SEW)*LMUL. Source EEW=SEW and EMUL=LMUL.
case RISCV::VMADC_VV:
case RISCV::VMADC_VI:
case RISCV::VMADC_VX:
case RISCV::VMSBC_VV:
case RISCV::VMSBC_VX: {
if (IsMODef)
return OperandInfo(RISCVVType::getEMULEqualsEEWDivSEWTimesLMUL(0, MI), 0);
return OperandInfo(MIVLMul, MILog2SEW);
}

default:
return {};
}
Expand Down Expand Up @@ -591,6 +638,11 @@ static bool isSupportedInstr(const MachineInstr &MI) {
case RISCV::VSEXT_VF8:
// Vector Integer Add-with-Carry / Subtract-with-Borrow Instructions
// FIXME: Add support
case RISCV::VMADC_VV:
case RISCV::VMADC_VI:
case RISCV::VMADC_VX:
case RISCV::VMSBC_VV:
case RISCV::VMSBC_VX:
// Vector Narrowing Integer Right Shift Instructions
case RISCV::VNSRL_WX:
case RISCV::VNSRL_WI:
Expand All @@ -599,7 +651,26 @@ static bool isSupportedInstr(const MachineInstr &MI) {
case RISCV::VNSRA_WV:
case RISCV::VNSRA_WX:
// Vector Integer Compare Instructions
// FIXME: Add support
case RISCV::VMSEQ_VI:
case RISCV::VMSEQ_VV:
case RISCV::VMSEQ_VX:
case RISCV::VMSNE_VI:
case RISCV::VMSNE_VV:
case RISCV::VMSNE_VX:
case RISCV::VMSLTU_VV:
case RISCV::VMSLTU_VX:
case RISCV::VMSLT_VV:
case RISCV::VMSLT_VX:
case RISCV::VMSLEU_VV:
case RISCV::VMSLEU_VI:
case RISCV::VMSLEU_VX:
case RISCV::VMSLE_VV:
case RISCV::VMSLE_VI:
case RISCV::VMSLE_VX:
case RISCV::VMSGTU_VI:
case RISCV::VMSGTU_VX:
case RISCV::VMSGT_VI:
case RISCV::VMSGT_VX:
// Vector Integer Min/Max Instructions
case RISCV::VMINU_VV:
case RISCV::VMINU_VX:
Expand Down
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