[Bug tree-optimization/69802] [4.9/5/6 Regression] gcc ICE at -O1 and above on valid code on x86_64-linux-gnu with “seg fault”

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69802

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 37692
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37692&action=edit
gcc6-pr69802.patch

Untested fix.