[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

[abel at gcc dot gnu.org]

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

--- Comment #12 from Andrey Belevantsev <abel at gcc dot gnu.org> 2012-01-19 
07:29:25 UTC ---
Author: abel
Date: Thu Jan 19 07:29:18 2012
New Revision: 183296

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183296
Log:
gcc/:
2012-01-19 Andrey Belevantsev <a...@ispras.ru>

    PR rtl-optimization/51505
    * df-problems.c (df_kill_notes): New parameter live. Update comment.
    Remove REG_EQUAL/REG_EQUIV notes referring to dead registers.
    (df_note_bb_compute): Update the call to df_kill_notes.

testsuite/:
2012-01-19 Andrey Belevantsev <a...@ispras.ru>

    PR rtl-optimization/51505
    * gcc.dg/pr51505.c: New test. 

Added:
    trunk/gcc/testsuite/gcc.dg/pr51505.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/df-problems.c
    trunk/gcc/testsuite/ChangeLog