[clang] [llvm] [RISCV] Add Qualcomm uC Xqcisync (Sync Delay) extension (PR #132184)

[Craig Topper via llvm-commits]

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@@ -1655,6 +1667,10 @@ bool RISCVAsmParser::matchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
     return generateImmOutOfRangeError(Operands, ErrorInfo, 1, (1 << 5));
   case Match_InvalidUImm5GE6Plus1:
     return generateImmOutOfRangeError(Operands, ErrorInfo, 6, (1 << 5));
+  case Match_InvalidUImm5Slist:
+    return generateImmOutOfRangeError(
+        Operands, ErrorInfo, 0, (1 << 5) - 1,
+        "immediate must be one of: 0, 1, 2, 4, 8, 15, 16, 31 in the range ");
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topperc wrote:

Is the "in the range" useful here after listing all the values? Maybe we should just do 

```
return Error(ErrorLoc, "immediate must be one of: 0, 1, 2, 4, 8, 15, 16, 31");
```

https://github.com/llvm/llvm-project/pull/132184