[Bug middle-end/120434] GCC uses signed extend (movsxd) for known positive variables rather than zero extend 'mov'

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120434

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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  Attachment #61587|0                           |1
        is obsolete|                            |

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 61592
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61592&action=edit
gcc16-pr120434-1.patch

Full patch (part 1/3) I'm testing right now.