https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107467
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2022-10-30 00:00:00 |2023-1-13
Priority|P3 |P2
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
> diff -u a.ltrans0.ltrans.115t.vrp1 a.ltrans0.ltrans.116t.dse2
...
__attribute__((noinline, optimize ("strict-aliasing")))
bool clashy.isra ()
{
@@ -90,8 +64,6 @@
bool _1;
<bb 2> [local count: 1073741824]:
- D.5191 = get_const.isra ();
- D.5190 = get_const.isra ();
_1 = compare_pairs (&D.5190, &D.5191);
so it's ICFed compare_pairs having modref TBAA info that makes the
stores dead. I suppose ICF needs to reset / alter the modref summaries?
