[Bug debug/51746] [4.7 Regression] Segfault in cselib_preserved_value_p

[aoliva at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51746

--- Comment #3 from Alexandre Oliva <aoliva at gcc dot gnu.org> 2012-01-05 
00:17:27 UTC ---
Thanks, Jakub, the patch is fine, I've just verified that it fixes the problem.