[Bug tree-optimization/126711] Missed elimination of sign-extend
"pinskia at gcc dot gnu.org via Gcc-bugs" <[email protected]>
| Newsgroups | gmane.comp.gcc.bugs |
|---|---|
| Message-ID | <[email protected]/bugzilla/> |
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126711
Drea Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
CC| |pinskia at gcc dot gnu.org
Last reconfirmed| |2026-08-08
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=120206
--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Some/most of the single_use for comparisons are there due to VRP being weak
before. and the reason for single_use rather than `:s` is because of the way
forwprop does some generic folding for comparisons (removing that is PR 120206;
I am still working on removing it but there are regressions removing it).