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[RISCV] Add patterns for generating QC_CTO and QC_CLO #144532

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Merged
svs-quic merged 1 commit into from
Jun 18, 2025
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[RISCV] Add patterns for generating QC_CTO and QC_CLO #144532

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5 changes: 5 additions & 0 deletions llvm/lib/Target/RISCV/RISCVInstrInfoXqci.td
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Original file line number Diff line number Diff line change
Expand Up @@ -1452,6 +1452,11 @@ def : Pat<(i32 (and GPRNoX0:$rs, 1023)), (QC_EXTU GPRNoX0:$rs, 10, 0)>;
def : Pat<(i32 (and GPRNoX0:$rs, 2047)), (QC_EXTU GPRNoX0:$rs, 11, 0)>;
} // Predicates = [HasVendorXqcibm, IsRV32]

let Predicates = [HasVendorXqcibm, HasStdExtZbb, IsRV32] in {
def: Pat<(i32 (cttz (not (i32 GPR:$rs1)))), (QC_CTO GPR:$rs1)>;
def: Pat<(i32 (ctlz (not (i32 GPR:$rs1)))), (QC_CLO GPR:$rs1)>;
} // Predicates = [HasVendorXqcibm, HasStdExtZbb, IsRV32]

let Predicates = [HasVendorXqciint, IsRV32] in
def : Pat<(riscv_mileaveret_glue), (QC_C_MILEAVERET)>;

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