[Bug tree-optimization/127877] [14/15/16 Regression] Wrong code with -O2 -march=x86-64-v3: nonlinear shift induction gives 0 instead of -1 since r13-2503-gc13223b790bbc5e4

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127877

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |17.0
            Summary|[14/15/16/17 Regression]    |[14/15/16 Regression] Wrong
                   |Wrong code with -O2         |code with -O2
                   |-march=x86-64-v3: nonlinear |-march=x86-64-v3: nonlinear
                   |shift induction gives 0     |shift induction gives 0
                   |instead of -1 since         |instead of -1 since
                   |r13-2503-gc13223b790bbc5e4  |r13-2503-gc13223b790bbc5e4

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed on trunk sofar, thanks for the report.