[Bug rtl-optimization/58759] [4.9 Regression] wrong code (segfaults) at -O2 on x86_64-linux-gnu in 32-bit mode

[vmakarov at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58759

Vladimir Makarov <vmakarov at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |vmakarov at gcc dot gnu.org

--- Comment #6 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
(In reply to Jeffrey A. Law from comment #5)
>
> We've had numerous problems with reload in the past trying to store into
> readonly memory due to reloading values with known equivalent memory
> locations (as is the case here).  I wouldn't be surprised to see some of the
> same problems showing up in IRA.
> 
> Vlad, can you take a look?

I've just started to work on it.  I guess this is the 2nd PR on the same
problem (another one is

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58826

).

Most probably the fix will be ready at the beginning of next week.