[Bug tree-optimization/102138] t = a==0 and a = PHI<0, t> should be done earlier than PRE

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102138

--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #5)
> https://gcc.gnu.org/pipermail/gcc-patches/2017-November/489192.html

Review from Richard B.:
https://gcc.gnu.org/pipermail/gcc-patches/2018-May/498001.html