================
@@ -8497,26 +8467,25 @@ ParseStatus
AArch64AsmParser::tryParseGPRSeqPair(OperandVector &Operands) {
MCRegister FirstReg;
ParseStatus Res = tryParseScalarRegister(FirstReg);
if (!Res.isSuccess())
- return Error(S, "expected first even register of a consecutive same-size "
- "even/odd register pair");
+ return Error(S, FirstRegExpected);
const MCRegisterClass &WRegClass =
getAArch64MCRegisterClass(AArch64::GPR32RegClassID);
const MCRegisterClass &XRegClass =
getAArch64MCRegisterClass(AArch64::GPR64RegClassID);
- bool isXReg = XRegClass.contains(FirstReg),
- isWReg = WRegClass.contains(FirstReg);
- if (!isXReg && !isWReg)
- return Error(S, "expected first even register of a consecutive same-size "
- "even/odd register pair");
+ bool IsXZR = FirstReg == AArch64::XZR;
+ bool IsXReg = XRegClass.contains(FirstReg);
+ bool IsWReg = WRegClass.contains(FirstReg);
+ bool IsXZRPair = AllowXZRPair && IsXZR;
+ if (AllowXZRPair ? (!IsXReg && !IsXZRPair) : (!IsXReg && !IsWReg))
----------------
jthackray wrote:
These variables are all used later on in the file, at line 8531, etc. So I
think I'll skip on this suggestion, since we still need them.
https://github.com/llvm/llvm-project/pull/182410
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