https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107743
Sam James <sjames at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |sjames at gcc dot gnu.org
--- Comment #3 from Sam James <sjames at gcc dot gnu.org> ---
Created attachment 58814
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58814&action=edit
expmed.ii.xz
```
$ g++ -c expmed.ii -O2 -Werror=maybe-uninitialized
/var/tmp/portage/sys-devel/gcc-15.0.9999/work/gcc-15.0.9999/gcc/expmed.cc: In
function ‘rtx_def* extract_bit_field_1(rtx, poly_uint64, poly_uint64, int, rtx,
machine_mode, machine_mode, bool, bool, rtx_def**)’:
/var/tmp/portage/sys-devel/gcc-15.0.9999/work/gcc-15.0.9999/gcc/expmed.cc:1851:45:
warning: ‘*(unsigned int*)((char*)&imode + offsetof(scalar_int_mode,
scalar_int_mode::m_mode))’ may be used uninitialized [-Wmaybe-uninitialized]
1851 | rtx sub = extract_bit_field_as_subreg (mode1, op0, imode,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
1852 | bitsize, bitnum);
| ~~~~~~~~~~~~~~~~
/var/tmp/portage/sys-devel/gcc-15.0.9999/work/gcc-15.0.9999/gcc/expmed.cc:1811:19:
note: ‘*(unsigned int*)((char*)&imode + offsetof(scalar_int_mode,
scalar_int_mode::m_mode))’ was declared here
1811 | scalar_int_mode imode;
| ^~~~~
```
