https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109318
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
Target Milestone|--- |12.3
Keywords|needs-reduction |
Summary|csmith: -fipa-cp seems to |[12/13 Regression] csmith:
|cause trouble since |-fipa-cp seems to cause
|r12-2523-g13586172d0b70c |trouble since
| |r12-2523-g13586172d0b70c
--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> ---
Reduced test-case:
$ cat pr109318.c
#pragma pack(1)
struct S {
signed : 31;
unsigned f4 : 20;
};
int tmp, g;
static struct S global;
static struct S func_16(struct S *ptr) {
for (; g > 0; g+= 8)
tmp &= 8;
return *ptr;
}
int
main()
{
struct S *local = &global;
*local = func_16(local);
return 0;
}
$ gcc pr109318.c -O2 && ./a.out
Segmentation fault (core dumped)
