[Bug c++/68847] [6 Regression] ICE in cxx_eval_constant_expression on __atomic_compare_exchange (constexpr.c:3719) in c++

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68847

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |hubicka at gcc dot gnu.org

--- Comment #3 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
A variant of this seems to hit current Firefox:

 0:35.53
/aux/hubicka/firefox9/js/src/jit/x86-shared/AtomicOperations-x86-shared.h:361:104:
internal compiler error: unexpected expression �(void*)(& zero)� of kind
implicit_conv_expr
 0:35.53      while (!__atomic_compare_exchange(&spinlock, &zero, &one, false,
__ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE)) {