[Bug tree-optimization/115484] [11/12/13/14/15 regression] if-to-switch prevents AVX vectorization

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115484

Sam James <sjames at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|if-to-switch prevents AVX   |[11/12/13/14/15 regression]
                   |vectorization               |if-to-switch prevents AVX
                   |                            |vectorization

--- Comment #2 from Sam James <sjames at gcc dot gnu.org> ---
GCC 8 vectorises it: https://godbolt.org/z/Y8Pvxsh5c.