[Bug middle-end/59409] [4.9 Regression] 253.perlbmk in SPEC CPU 2K is miscompiled

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59409

--- Comment #21 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to rguenther@suse.de from comment #20)
> > --- Comment #19 from H.J. Lu <hjl.tools at gmail dot com> ---
> > Adding -fno-strict-aliasing fixed the problem.
> 
> If using Perl_my_bcopy is the problem then maybe defining

I can give it a try.

> HAS_SAFE_BCOPY will fix it?

It may be related to PR 33383.