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Re: problem building gcc 3.4 20030705 with gcc-3.3

From: Andrew Pinski <pinskia at physics dot uc dot edu>
To: george goffe <grgoffe at yahoo dot com>
Cc: Andrew Pinski <pinskia at physics dot uc dot edu>, gcc-bugs at gcc dot gnu dot org
Date: Sat, 5 Jul 2003 00:14:02 -0400
Subject: Re: problem building gcc 3.4 20030705 with gcc-3.3

This is a known bootstrap failure (it happens on most platforms, too):

It is caused by: +Thu Jul 3 20:36:47 CEST 2003 Jan Hubicka <jh@suse.cz> + + * basic-block.h (create_basic_block, merge_blocks_nomove): Kill. + * cfgcleanup.c (merge_blocks): Rename to merge_blocks_move. + (merge_blocks_move_predecessor_nojumps, + merge_blocks_move_successor_nojumps): Use merge_blocks. + (try_optimize_cfg): Use merge_blocks_move. + * cfgrtl.c (create_basic_block): Rename to rtl_create_basic_block. + (merge_blocks_nomove): Rename to rtl_merge_blocks. + (cfg_layout_create_basic_block): New. + (rtl_can_merge_blocks): New. + (cfg_layout_split_block): Do not alloc aux by hand. + * cfghooks.h (cfg_hooks): Add create_basic_block, can_merge_blocks_p, + merge_blocks. + (create_basic_block, can_merge_blocks_p, merge_blocks): New macros. + * cfglayout.c (cfg_layout_duplicate_bb): Do not allocate aux by hand. + * cfgloopmanip.c (loop_split_edge_with): Likewise. + * ifcvt.c (merge_if_block): Use merge_blocks_nomove. + + * basic-block.h (basic_block_def): Add field 'rbi'. + * bb-reorder.c (find_traces, rotate_loop, mark_bb_visited, + find_traces_1_round, copy_bb, connect_traces): Update use of rbi. + * cfg.c (entry_exit_blocks): Add new field. + * cfglayout.c: Include alloc-pool.h; + (cfg_layout_pool): New. + (record_effective_endpoints, fixup_reorder_chain, + fixup_fallthru_exit_predecessor, cfg_layout_duplicate_bb): Update use + of rbi. + (cfg_layout_initialize_rbi): New function. + (cfg_layout_initialize): Use it. + (cfg_layout_finalize): Clear rbi fields. + * cfglayout.h (RBI): Kill. + (cfg_layout_initialize_rbi): Declare. + * cfgloopmanip.c (copy_bbs): Use rbi. + (record_exit_edges): Likewise. + (duplicate_loop_to_header_edge): Likewise. + * cfgrtl.c (cfg_layout_create_basic_block): Use + cfg_layout_initialize_rbi. + (cfg_layout_split_block): Use rbi. + (cfg_layout_delete_block): Likewise. + * loop-init.c (loop_optimizer_finalize): Likewise. + * loop-unswitch.c (unswitch_loop): Likewise. + * tracer.c (seen, tail_duplicate, layout_superblocks): Likewise. + + * cfgrtl.c: Update comments. + (try_redirect_by_replacing_jump): New argument. + (redirect_branch_edge): Break out from ... + (rtl_redirect_edge_and_branch): ... this one. + (update_cfg_after_block_merging): Break out from ... + (rtl_merge_blocks): ... this one. + (cfg_layout_split_edge): New. + (cfg_layout_merge_blocks): New. + (cfg_layout_can_merge_blocks_p): New. + (cfg_layout_redirect_edge_and_branch): Reorganize. + (cfg_layout_rtl_cfg_hooks): Fill in. + (cfg_layout_delete_block): Kill barriers. + * cfganal.c (can_fallthru): Deal with exit blocks + * cfglayout.c (cfg_layout_function_header): New function + (record_effective_endpoints): Record function header. + (fixup_reorder_chain): Fixup dead jumptables; place header + + * basic-block.h (CLEANUP_CFGLAYOUT): New flag. + * bb-reorder.c (cfg_layout_initialize): Update call. + * cfgcleanup.c (try_optimize_cfg): Supress optimizations of fallthru + edges in cfglayout mode. + * cfglayout.c (cleanup_unconditional_jumps): Kill. + (cfg_layout_initialize): Kill agrument loops; use cfgcleanup. + * cfglayout.h (cfg_layout_initialize): Update prototype. + * cfgloop.h (CP_INSIDE_CFGLAYOUT): Kill. + * cfgloopmanip.c (loop_split_edge_with): Use split_edge. + * flow.c (propagate_block): Do not crash when basic block ends + by first insn in the chain. + * loop-init.c (loop_optimizer_init): First enter cfglayout mode; later + do loop discovery. + * tracer.c (tracer): Update call of cfg_layout_initialize.

<http://gcc.gnu.org/ml/gcc-patches/2003-06/msg01741.html>
<http://gcc.gnu.org/ml/gcc-patches/2003-07/msg00287.html>
<http://gcc.gnu.org/ml/gcc-patches/2003-06/msg02034.html>

All where okayed by Richard Henderson.

Thanks,
Andrew Pinski

On Friday, Jul 4, 2003, at 23:59 US/Eastern, george goffe wrote:

Howdy,
I'm reporting a problem with a build of the above
version of gcc. I'm just trying to be helpful. Here's
the short version of the problem:
de -I../intl  -m64 -DL__gcc_bcmp -c
../../gcc/libgcc2.c -o libgcc/sparcv9/__gcc_bcmp.o
../../gcc/libgcc2.c: In function `__gcc_bcmp':
../../gcc/libgcc2.c:1519: error: head insn 102 for
block 0 not found in the insn stream
../../gcc/libgcc2.c:1519: internal compiler error:
Segmentation Fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for
instructions.
make[2]: *** [libgcc/sparcv9/__gcc_bcmp.o] Error 1
make[2]: Leaving directory
`/tls/gcc/gcc/obj.sparc-sun-solaris2.9/gcc'
make[1]: *** [stmp-multilib] Error 2
make[1]: Leaving directory
`/tls/gcc/gcc/obj.sparc-sun-solaris2.9/gcc'
The long version is in the included build.log.gz file.

If anyone would like more info please email me.

Regards,

George...

===== ===== _/_/_/_/ _/_/_/_/ _/_/_/_/ _/_/_/_/ _/_/_/_/ _/_/_/_/ ----- _/ _/ _/ _/ _/ _/ _/ _/ _/ _/_/ _/_/_/_/ _/ _/ _/_/_/_/ _/ _/_/ _/_/_/_/ ----- _/ _/ _/ _/ _/ _/ _/ _/ _/ _/ _/_/_/_/ _/_/_/_/ _/_/_/_/ _/ _/ _/_/_/_/ _/_/_/_/ ----- "It's not what you know that hurts you, It's what you know that ain't so." Wil Rogers
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References:
- problem building gcc 3.4 20030705 with gcc-3.3
  - From: george goffe

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