[Bug rtl-optimization/46943] Unnecessary ZERO_EXTEND

2023-05-19 Thread pinskia at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46943 Andrew Pinski changed: What|Removed |Added Last reconfirmed|2018-04-22 00:00:00 |2023-5-19 Severity|normal

[Bug rtl-optimization/46943] Unnecessary ZERO_EXTEND

2018-04-22 Thread pinskia at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46943 Andrew Pinski changed: What|Removed |Added Last reconfirmed|2012-02-02 00:00:00 |2018-4-22 --- Comment #3 from Andrew Pin

[Bug rtl-optimization/46943] Unnecessary ZERO_EXTEND

2012-02-02 Thread pinskia at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46943 Andrew Pinski changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|

[Bug rtl-optimization/46943] Unnecessary ZERO_EXTEND

2010-12-16 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46943 --- Comment #1 from Richard Guenther 2010-12-16 15:10:12 UTC --- Hmm. I think at least postreload CSE should handle it as we then know that zero-extends extend to the full HW register. Pre-regalloc would be difficult as we'd need some new form