[Bug debug/64663] [4.8/4.9/5 Regression] ICE at -O1 and above with -g enabled on x86_64-linux-gnu

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64663

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 34484
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34484&action=edit
gcc5-pr64663.patch

Untested fix.  Perhaps for the backport just the second hunk would be enough
(plus testcase).