[Bug tree-optimization/100922] CSE leads to fully redundant (back to back) zero-extending loads of the same thing in a loop, or a register copy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100922 Richard Biener changed: What|Removed |Added CC||rguenth at gcc dot gnu.org ---

[Bug tree-optimization/100922] CSE leads to fully redundant (back to back) zero-extending loads of the same thing in a loop, or a register copy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100922 --- Comment #3 from Andrew Pinski --- (In reply to Peter Cordes from comment #2) > Possibly also related: Fully unrelated.

[Bug tree-optimization/100922] CSE leads to fully redundant (back to back) zero-extending loads of the same thing in a loop, or a register copy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100922 --- Comment #2 from Peter Cordes --- Possibly also related: With different surrounding code, this loop can compile to asm which has two useless movz / mov register copies in the loop at -O2 (https://godbolt.org/z/PTcqzM6q7). (To set up for

[Bug tree-optimization/100922] CSE leads to fully redundant (back to back) zero-extending loads of the same thing in a loop, or a register copy

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100922 Andrew Pinski changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|