[Bug target/117930] New: Improve rotates by C - x or C + x where C is multiple of bitsize on x86

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117930

            Bug ID: 117930
           Summary: Improve rotates by C - x or C + x where C is multiple
                    of bitsize on x86
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jakub at gcc dot gnu.org
                CC: jakub at gcc dot gnu.org, kristerw at gcc dot gnu.org,
                    pinskia at gcc dot gnu.org
        Depends on: 117927
  Target Milestone: ---

+++ This bug was initially created as a clone of Bug #117927 +++

I think we want to extend the r15-5635, r15-5657, r15-5731 changes to
rotates as well.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117927
[Bug 117927] [15 Regression] Invalid rotate optimization