https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92039
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|needs-reduction |
CC| |marxin at gcc dot gnu.org
--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> ---
Just for the record a reduced test-case:
int a[3];
void fn1(long b) {
int i;
for (i = 3; i >= b; --i)
a[i] = a[i - b];
}
where does not need -m32:
$ gcc -Werror=array-bounds -O2 -c ice.i
ice.i: In function ‘fn1’:
ice.i:6:6: error: array subscript 3 is above array bounds of ‘int[3]’
[-Werror=array-bounds]
6 | a[i] = a[i - b];
| ~^~~
ice.i:1:5: note: while referencing ‘a’
1 | int a[3];
| ^
cc1: some warnings being treated as errors
$ gcc-9 -Werror=array-bounds -O2 -c ice.i
