================
@@ -0,0 +1,29 @@
+// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -emit-llvm -o - %s
----------------
mkovacevic99 wrote:
I split the coverage so the semantic/type-deduction checks remain in a Sema
test and added a separate CodeGen regression test for the original crash during
LLVM emission.
I also checked additional declaration scenarios such as:
```c
struct S {
__auto_type _Atomic xa;
};
```
Before this change, that also hit the same assertion (`cannot request the size
of an undeduced or dependent auto type`). After the fix it now correctly
diagnoses:
`'__auto_type' not allowed in struct member`
so the change appears to prevent undeduced `__auto_type` wrapped in `_Atomic`
from escaping into later stages there as well.
I agree the qualifier vs specifier behavior and `auto` vs `__auto_type`
semantics are separate concerns. I’d prefer to keep this change focused on
fixing the crash and that we create a follow up issue for the behavioral
differences and more exhaustive coverage.
https://github.com/llvm/llvm-project/pull/197874
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