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[RISCV] Change the InstFormat for Zicbop prefetch instructions to InstFormatOther. #148934

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Merged
merged 1 commit into from
Jul 15, 2025
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[RISCV] Change the InstFormat for Zicbop prefetch instructions to InstFormatOther. #148934

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4 changes: 3 additions & 1 deletion llvm/lib/Target/RISCV/RISCVInstrFormats.td
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Expand Up @@ -193,7 +193,9 @@ class RVInstCommon<dag outs, dag ins, string opcodestr, string argstr,
let AsmString = opcodestr # !if(!empty(argstr), "", "\t" # argstr);
let Pattern = pattern;

let TSFlags{4-0} = format.Value;
InstFormat Format = format;

let TSFlags{4-0} = Format.Value;

// Defaults
RISCVVConstraint RVVConstraint = NoConstraint;
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1 change: 1 addition & 0 deletions llvm/lib/Target/RISCV/RISCVInstrInfoZicbo.td
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Expand Up @@ -41,6 +41,7 @@ class Prefetch_ri<bits<5> optype, string opcodestr>
opcodestr, "${imm12}(${rs1})"> {
let Inst{11-7} = 0b00000;
let rs2 = optype;
let Format = InstFormatOther; // this does not follow the normal S format.
}

//===----------------------------------------------------------------------===//
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