[Bug target/98911] New: Add folding and remove expanders for x86 *pcmp{et,gt}* builtins

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98911

            Bug ID: 98911
           Summary: Add folding and remove expanders for x86 *pcmp{et,gt}*
                    builtins
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jakub at gcc dot gnu.org
                CC: crazylht at gmail dot com, jakub at gcc dot gnu.org,
                    marxin at gcc dot gnu.org, unassigned at gcc dot gnu.org
        Depends on: 98833
  Target Milestone: ---
              Host: x86_64-linux
            Target: x86_64-linux-gnu

+++ This bug was initially created as a clone of Bug #98833 +++

This PR is to capture:
Will delete relevant expanders and fold those builtins in GCC12.
part of that PR.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98833
[Bug 98833] [11 Regression] ICE in extract_insn, at recog.c:2769 since
r11-6849-gee78c20e74d30284