================
@@ -8031,6 +8034,28 @@ static bool handleFunctionTypeAttr(TypeProcessingState
&state, ParsedAttr &attr,
CallingConv CCOld = fn->getCallConv();
Attr *CCAttr = getCCTypeAttr(S.Context, attr);
+ if (attr.getKind() == ParsedAttr::AT_RISCVVLSCC) {
+ // If the riscv_abi_vlen doesn't have any argument, we set set it to 2 to
+ // differentiate from functions without attribute.
+ unsigned ABIVLen = 2;
+ if (attr.getNumArgs() &&
+ !S.checkUInt32Argument(attr, attr.getArgAsExpr(0), ABIVLen))
+ return false;
+ if (ABIVLen != 2 && (ABIVLen < 32 || ABIVLen > 65536)) {
----------------
topperc wrote:
Does this allow users to write 2?
https://github.com/llvm/llvm-project/pull/100346
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