[Bug debug/66691] [5/6 Regression] ICE on valid code at -O3 with -g enabled in simplify_subreg, at simplify-rtx.c:5744

[vmakarov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66691

--- Comment #7 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
I'll commit the same patch into gcc-5 branch on next week after some testing
the patch on trunk.