[Bug tree-optimization/94212] [8/9/10 Regression] Incorrect vectorization of loop with FP calculations

rguenth at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Wed Mar 18 13:44:08 GMT 2020


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94212

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |7.4.0
            Summary|Incorrect vectorization of  |[8/9/10 Regression]
                   |loop with FP calculations   |Incorrect vectorization of
                   |                            |loop with FP calculations
          Component|middle-end                  |tree-optimization
            Version|tree-ssa                    |10.0
   Target Milestone|---                         |8.5
                 CC|                            |rguenth at gcc dot gnu.org,
                   |                            |rsandifo at gcc dot gnu.org
             Target|                            |aarch64

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
The vectorizer vectorizes the reduction in-order but appearantly sth goes wrong
there.


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