| Issue |
128361
|
| Summary |
[Clang] -Wpsabi complains too eagerly
|
| Labels |
clang:diagnostics
|
| Assignees |
|
| Reporter |
philnik777
|
Clang currently complains when calling a function that the ABI changes if a feature is enabled, but ignores that the function is marked `[[gnu::always_inline]]`, which ensures that the type will never be part of the ABI. e.g.
```c++
using vec [[gnu::vector_size(32)]] = int;
[[gnu::always_inline]] vec test() {
return {};
}
void call() {
(void)test(); // complains that test() changes the ABI with avx enabled
}
```
Ironically, it doesn't complain if the address is taken, which is one of the few cases where this would actually matter, since LLVM might not be able to inline a call to the function pointer.
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