[Bug tree-optimization/71588] [4.9/5/6/7 Regression] ICE on valid code at -O2 and -O3 on x86_64-linux-gnu: in execute_todo, at passes.c:2009

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71588

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 38731
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38731&action=edit
gcc7-pr71588.patch

Untested fix.