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

[Craig Topper via llvm-commits]

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@@ -1345,9 +1346,10 @@ bool PPCAsmParser::matchRegisterName(MCRegister &RegNo, int64_t &IntVal) {
              !Name.substr(3).getAsInteger(10, IntVal) && IntVal < 8) {
     RegNo = DMRRegs[IntVal];
   } else
-    return true;
+    return PPC::NoRegister;
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topperc wrote:

Use MCRegister()

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