Casts from an SVE type to itself aren't very useful, but they are
supposed to be valid, and could occur in things like macro expansions.
Such casts already work for C++ and are tested by sizeless-1.cpp.
This patch makes them work for C too.
Differential Revision: https://reviews.llvm.org/D76694
return;
}
+ // Allow casting a sizeless built-in type to itself.
+ if (DestType->isSizelessBuiltinType() &&
+ Self.Context.hasSameUnqualifiedType(DestType, SrcType)) {
+ Kind = CK_NoOp;
+ return;
+ }
+
if (!DestType->isScalarType() && !DestType->isVectorType()) {
const RecordType *DestRecordTy = DestType->getAs<RecordType>();
sel = local_int8; // expected-error {{assigning to 'int' from incompatible type 'svint8_t'}}
+ local_int8 = (svint8_t)local_int8;
+ local_int8 = (const svint8_t)local_int8;
local_int8 = (svint8_t)local_int16; // expected-error {{used type 'svint8_t' (aka '__SVInt8_t') where arithmetic or pointer type is required}}
local_int8 = (svint8_t)0; // expected-error {{used type 'svint8_t' (aka '__SVInt8_t') where arithmetic or pointer type is required}}
sel = (int)local_int8; // expected-error {{operand of type 'svint8_t' (aka '__SVInt8_t') where arithmetic or pointer type is required}}