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Re: Bootstrap failure: element 1863 out of bounds in merge_blocks_nomove, at flow.c:2887
- To: Gerald Pfeifer <pfeifer at dbai dot tuwien dot ac dot at>, gcc-patches at gcc dot gnu dot org, rth at cygnus dot com
- Subject: Re: Bootstrap failure: element 1863 out of bounds in merge_blocks_nomove, at flow.c:2887
- From: Jan Hubicka <jh at suse dot cz>
- Date: Mon, 30 Jul 2001 18:59:09 +0200
- Cc: Jan Hubicka <jh at suse dot cz>, Richard Henderson <rth at redhat dot com>, gcc-bugs at gcc dot gnu dot org, java at gcc dot gnu dot org
- References: <20010730171516.I31346@atrey.karlin.mff.cuni.cz> <Pine.BSF.4.33.0107301831590.49500-100000@taygeta.dbai.tuwien.ac.at>
> On Mon, 30 Jul 2001, Jan Hubicka wrote:
> >> We have a new bootstrap failure for a plain build on sparc-sun-solaris2.8:
> > I've got equivalent bugreport some time ago.
> > I am just giong to test sparc with following patch. If you can do it
> > yourself easilly, please let me know
> >
> > Mon Jul 30 16:32:49 CEST 2001 Jan Hubicka <jh@suse.cz>
> > * toplev.c (rest_of_compilation): Recompute block_for_insn
> > before post-reload cfg_cleanup.
> > * function.c (thread_prologue_epilogue_insns):
> > Call set_block_for_new_insns when emitting prologue directly.
>
> Yes, this indeed makes the bootstrap reach stage3 on sparc-sun-solaris2.8,
> that is, it seems to solve the problem I reported.
I've got sucesfull bootstrap on sparc in meantime too.
OK to install?
Mon Jul 30 16:32:49 CEST 2001 Jan Hubicka <jh@suse.cz>
* toplev.c (rest_of_compilation): Recompute block_for_insn
before post-reload cfg_cleanup.
* function.c (thread_prologue_epilogue_insns):
Call set_block_for_new_insns when emitting prologue directly.
Index: toplev.c
===================================================================
RCS file: /cvs/gcc/egcs/gcc/toplev.c,v
retrieving revision 1.501
diff -c -3 -p -r1.501 toplev.c
*** toplev.c 2001/07/29 17:01:53 1.501
--- toplev.c 2001/07/30 14:32:20
*************** rest_of_compilation (decl)
*** 3473,3491 ****
verify_flow_info ();
#endif
/* If optimizing, then go ahead and split insns now. */
if (optimize > 0)
split_all_insns (0);
! cleanup_cfg (0);
/* On some machines, the prologue and epilogue code, or parts thereof,
can be represented as RTL. Doing so lets us schedule insns between
it and the rest of the code and also allows delayed branch
scheduling to operate in the epilogue. */
thread_prologue_and_epilogue_insns (insns);
-
- compute_bb_for_insn (get_max_uid ());
if (optimize)
{
--- 3473,3491 ----
verify_flow_info ();
#endif
+ compute_bb_for_insn (get_max_uid ());
+
/* If optimizing, then go ahead and split insns now. */
if (optimize > 0)
split_all_insns (0);
! cleanup_cfg (optimize ? CLEANUP_EXPENSIVE : 0);
/* On some machines, the prologue and epilogue code, or parts thereof,
can be represented as RTL. Doing so lets us schedule insns between
it and the rest of the code and also allows delayed branch
scheduling to operate in the epilogue. */
thread_prologue_and_epilogue_insns (insns);
if (optimize)
{
Index: function.c
===================================================================
RCS file: /cvs/gcc/egcs/gcc/function.c,v
retrieving revision 1.285
diff -c -3 -p -r1.285 function.c
*** function.c 2001/07/29 02:10:41 1.285
--- function.c 2001/07/30 14:32:31
*************** thread_prologue_and_epilogue_insns (f)
*** 7226,7232 ****
inserted = 1;
}
else
! emit_insn_after (seq, f);
}
#endif
--- 7226,7233 ----
inserted = 1;
}
else
! set_block_for_new_insns (emit_insn_after (seq, f),
! ENTRY_BLOCK_PTR->succ);
}
#endif