https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103291
Bug ID: 103291
Summary: gcc 11 regression with #pragma GCC visibility vs
extern inside C++ functions
Product: gcc
Version: 11.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: roland at gnu dot org
Target Milestone: ---
GCC 11 has a regression with:
```
#pragma GCC visibility push(hidden)
int hidden_fetch(void) {
extern const int hidden_global;
return hidden_global;
}
```
when compiled with -fpic. GCC 10 would always avoid the GOT for this case. GCC
11 avoids the GOT when it's compiled as C, but uses the GOT when it's compiled
as C++. Moving the extern decl outside the function makes it dtrt again in C++
as well.
Reproduced on trunk at 4cdf7db9a39d18bd536d816a5751d4d3cf23808b and on 11
branch at b52e2254b30445f3cd667ae0f0d99b183394e37b.
