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[Bug rtl-optimization/34171] [4.3 Regression] Segfault in df_chain_remove_problem with -O3 on alpha
- From: "tbm at cyrius dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 21 Nov 2007 10:56:18 -0000
- Subject: [Bug rtl-optimization/34171] [4.3 Regression] Segfault in df_chain_remove_problem with -O3 on alpha
- References: <bug-34171-12387@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from tbm at cyrius dot com 2007-11-21 10:56 -------
(In reply to comment #4)
> Created an attachment (id=14589)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14589&action=view) [edit]
> attempt
>
> Can you try this patch? I don't have the resources now to build a cross and
> test it.
Now I'm getting:
Program received signal SIGSEGV, Segmentation fault.
0x00000001201466d0 in df_chain_remove_problem () at
/home/tbm/scratch/gcc/gcc/df-problems.c:1941
1941 struct df_ref **def_rec = df_get_artificial_defs (bb->index);
(gdb) where
#0 0x00000001201466d0 in df_chain_remove_problem () at
/home/tbm/scratch/gcc/gcc/df-problems.c:1941
#1 0x00000001201469e8 in df_chain_fully_remove_problem ()
at /home/tbm/scratch/gcc/gcc/df-problems.c:1982
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34171