| Issue |
86849
|
| Summary |
Attributes on a function template definition (but not declaration) ignored if instantiation occurs before definition
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
dwblaikie
|
Given:
```
void f();
template <bool>
#ifdef ATTR_DECL
__attribute__((noinline))
#endif
void f1();
int main() {
f1<false>();
}
template <bool>
__attribute__((noinline)) void f1() { f(); }
```
https://godbolt.org/z/MG4qsxvj1
`f1` does not have the `noinline` attribute in the IR/from Clang's CodeGen - but if `ATTR_DECL` is defined or `main` is moved to after `f1`'s definition, the attribute is emitted.
GCC does have the same behavior, so one could argue this is intentional/consistent/correct - but seems a bit off? Curious to get some opinions at least
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