[Bug tree-optimization/93734] [8/9/10 Regression] Invalid code generated with -O2 -march=haswell -ftree-vectorize

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93734

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|                            |x86_64-*-*
           Priority|P3                          |P2
             Status|UNCONFIRMED                 |NEW
      Known to work|                            |7.5.0
           Keywords|                            |wrong-code
   Last reconfirmed|                            |2020-02-13
          Component|fortran                     |tree-optimization
             Blocks|                            |53947
     Ever confirmed|0                           |1
            Summary|Invalid code generated with |[8/9/10 Regression] Invalid
                   |-O2 -march=haswell          |code generated with -O2
                   |-ftree-vectorize            |-march=haswell
                   |                            |-ftree-vectorize
   Target Milestone|---                         |8.4
      Known to fail|                            |10.0, 8.1.0, 8.3.1, 9.1.0,
                   |                            |9.2.1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
It works fine with GCC 7.5.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947
[Bug 53947] [meta-bug] vectorizer missed-optimizations