[llvm] [Xtensa] Implement Windowed Register Option. (PR #121118)

[Andrei Safronov via llvm-commits]

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@@ -210,6 +211,32 @@ static DecodeStatus decodeImm32n_95Operand(MCInst &Inst, uint64_t Imm,
   return MCDisassembler::Success;
 }
 
+static DecodeStatus decodeImm8n_7Operand(MCInst &Inst, uint64_t Imm,
+                                         int64_t Address, const void *Decoder) {
+  assert(isUInt<4>(Imm) && "Invalid immediate");
+  if (Imm > 7)
+    Inst.addOperand(MCOperand::createImm(Imm - 16));
+  else
+    Inst.addOperand(MCOperand::createImm(Imm));
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andreisfr wrote:

Fixed.

https://github.com/llvm/llvm-project/pull/121118