[Bug tree-optimization/90240] [10 Regression] ICE in try_improve_iv_set, at tree-ssa-loop-ivopts.c:6694

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90240
--- Comment #8 from bin cheng <amker at gcc dot gnu.org> ---
Patch proposed at:
https://gcc.gnu.org/ml/gcc-patches/2019-04/msg01101.html