[Bug c/95715] __atomic_fetch_add accepts nonsense arguments

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95715

Andrew Pinski  changed:

   What|Removed |Added

 CC||patrick at rivosinc dot com

--- Comment #2 from Andrew Pinski  ---
*** Bug 115441 has been marked as a duplicate of this bug. ***

[Bug c/95715] __atomic_fetch_add accepts nonsense arguments

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95715

Jonathan Wakely  changed:

   What|Removed |Added

   Last reconfirmed||2020-06-16
 Ever confirmed|0   |1
 Status|UNCONFIRMED |NEW

--- Comment #1 from Jonathan Wakely  ---
We also accept this, adding two void* pointer together:

void* i = 0;
void* p = 0;
void* r = __atomic_fetch_add(, , __ATOMIC_SEQ_CST);

The second argument should be ptrdiff_t.

Or adding a double* to an int*:

double* i = 0;
int* p = 0;
void* r = __atomic_fetch_add(, , __ATOMIC_SEQ_CST);