[clang] [llvm] [RISCV] Add Qualcomm uC Xqcibm (Bit Manipulation) extension (PR #129504)

[via cfe-commits]

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@@ -385,6 +389,20 @@ RISCVMCCodeEmitter::getMachineOpValue(const MCInst &MI, const MCOperand &MO,
   return 0;
 }
 
+uint64_t
+RISCVMCCodeEmitter::getImmOpValueMinus1(const MCInst &MI, unsigned OpNo,
+                                        SmallVectorImpl<MCFixup> &Fixups,
+                                        const MCSubtargetInfo &STI) const {
+  const MCOperand &MO = MI.getOperand(OpNo);
+
+  if (MO.isImm()) {
+    uint64_t Res = MO.getImm();
+    return (Res - 1);
+  }
+
+  return getImmOpValue(MI, OpNo, Fixups, STI);
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hchandel wrote:

Done.

https://github.com/llvm/llvm-project/pull/129504