[Bug rtl-optimization/127814] [14/15/16 Regression] wrong code at -O3 with -fno-vect-cost-model on x86_64-linux-gnu

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127814

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[14/15/16/17 Regression]    |[14/15/16 Regression] wrong
                   |wrong code at -O3 with      |code at -O3 with
                   |-fno-vect-cost-model on     |-fno-vect-cost-model on
                   |x86_64-linux-gnu            |x86_64-linux-gnu
      Known to work|                            |17.0

--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
The testcase is fixed.  There's room for improvements for the mitigation and
for the general infrastructure we have.