[Bug rtl-optimization/51505] [4.5/4.6/4.7 Regression] ICE: in form_sum, at reload.c:5349 with -O --param max-cse-insns=1

[bonzini at gnu dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51505

--- Comment #4 from Paolo Bonzini <bonzini at gnu dot org> 2011-12-13 19:34:25 
UTC ---
No, it should be easy.  Just look at the EQ_USES in df_kill_notes and, if one
EQ_USE refers to a dead pseudo, kill the REG_EQUAL or REG_EQUIV note.