| // PR debug/83084 | |
| // { dg-do compile } | |
| // { dg-options "-O2 -fcompare-debug -Wno-return-type" } | |
| enum E { F }; | |
| template <E = F> struct A { | |
| bool foo (); | |
| int b; | |
| }; | |
| template <> bool A<>::foo () { | |
| int a; | |
| do | |
| if (a) | |
| return false; | |
| while (__atomic_compare_exchange_n (&b, &a, 0, 1, 4, 0)); | |
| } |