[Bug rtl-optimization/70174] [6 Regression] ICE at -O1 and above on x86_64-linux-gnu in gen_lowpart_general, at rtlhooks.c:63

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70174

--- Comment #9 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Uroš Bizjak from comment #4)
> (In reply to Jakub Jelinek from comment #3)
> > Though, aarch64 ICEs in the same place, so this is likely not an i386
> > backend issue.
> 
> This is an issue with insv handling infrastructure.  The problem is in
> expmed.c, around line 669, where simplify_subreg is called with
> (symbol_ref:DI ...). This won't work.

Eh, gen_lowpart at line 678 instead of simplify_subreg - and the patch fixes
the right spot.