[llvm] [PowerPC] Update matchRegisterName() to return MCRegister instead of bool (PR #111186)

[Craig Topper via llvm-commits]

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@@ -1291,13 +1291,14 @@ bool PPCAsmParser::matchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
   llvm_unreachable("Implement any new match types added!");
 }
 
-bool PPCAsmParser::matchRegisterName(MCRegister &RegNo, int64_t &IntVal) {
+MCRegister PPCAsmParser::matchRegisterName(int64_t &IntVal) {
   if (getParser().getTok().is(AsmToken::Percent))
     getParser().Lex(); // Eat the '%'.
 
   if (!getParser().getTok().is(AsmToken::Identifier))
-    return true;
+    return PPC::NoRegister;
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topperc wrote:

Use MCRegister()

https://github.com/llvm/llvm-project/pull/111186