[Bug target/77881] [5/6 Regression] Non-optimal signed comparison on x86_64 since r146817

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77881

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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             Target|                            |x86_64-*-*
           Priority|P3                          |P2
      Known to work|                            |7.0
      Known to fail|                            |5.4.0, 6.2.0