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[RISCV] Remove unneeded unmasked patterns for vcpop_v and riscv_vfirst_vl. #127435

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Merged
merged 1 commit into from
Feb 17, 2025
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[RISCV] Remove unneeded unmasked patterns for vcpop_v and riscv_vfirst_vl. #127435

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8 changes: 0 additions & 8 deletions llvm/lib/Target/RISCV/RISCVInstrInfoVVLPatterns.td
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Original file line number Diff line number Diff line change
Expand Up @@ -2701,20 +2701,12 @@ foreach mti = AllMasks in {
VR:$rs, VR:$rs, GPR:$vl, mti.Log2SEW)>;

// 15.2 Vector count population in mask vcpop.m
def : Pat<(XLenVT (riscv_vcpop_vl (mti.Mask VR:$rs2), (mti.Mask true_mask),
VLOpFrag)),
(!cast<Instruction>("PseudoVCPOP_M_" # mti.BX)
VR:$rs2, GPR:$vl, mti.Log2SEW)>;
def : Pat<(XLenVT (riscv_vcpop_vl (mti.Mask VR:$rs2), (mti.Mask VMV0:$vm),
VLOpFrag)),
(!cast<Instruction>("PseudoVCPOP_M_" # mti.BX # "_MASK")
VR:$rs2, (mti.Mask VMV0:$vm), GPR:$vl, mti.Log2SEW)>;

// 15.3 vfirst find-first-set mask bit
def : Pat<(XLenVT (riscv_vfirst_vl (mti.Mask VR:$rs2), (mti.Mask true_mask),
VLOpFrag)),
(!cast<Instruction>("PseudoVFIRST_M_" # mti.BX)
VR:$rs2, GPR:$vl, mti.Log2SEW)>;
def : Pat<(XLenVT (riscv_vfirst_vl (mti.Mask VR:$rs2), (mti.Mask VMV0:$vm),
VLOpFrag)),
(!cast<Instruction>("PseudoVFIRST_M_" # mti.BX # "_MASK")
Expand Down