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| author | Jan Hubicka <jh@suse.cz> | 2002-02-28 10:11:01 +0000 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2002-02-28 10:11:01 +0000 |
| commit | 38c1593d577d667bd1bcb486c0a6b34c218ebb46 (patch) | |
| tree | 8d5067250a1945f16e7442da0ebfa33bcd46322d /gcc/cfgrtl.c | |
| parent | bde131d34d70387ac376419405e9b5c8a788984c (diff) | |
| download | gcc-38c1593d577d667bd1bcb486c0a6b34c218ebb46.zip gcc-38c1593d577d667bd1bcb486c0a6b34c218ebb46.tar.gz gcc-38c1593d577d667bd1bcb486c0a6b34c218ebb46.tar.bz2 | |
basic-block.h (BB_REACHABLE): Renumber.
* basic-block.h (BB_REACHABLE): Renumber.
(BB_DIRTY, BB_NEW): New flags.
(clear_bb_flags): Declare.
(update_life_info_in_dirty_blocks): Declare.
* cfg.c (clear_bb_flags): New function.
* cfgrtl.c (create_basic_block_structure): Set flags to BB_NEW.
* emit-rtl.c (add_insn_after, add_insn_before, remove_insn,
reorder_insns, emit_insn_after): Mark block as dirty.
* flow.c (update_life_info): Fix clearing of PROP_LOG_LINKS.
(update_life_info_in_dirty_blocks): New function.
* recog.c (apply_change_group): Dirtify block.
* cse.c (cse_insn): Reorder emitting of jump insn to keep
cfg consistent.
* gcse.c (delete_null_pointer_checks): Likewise.
* toplev.c (dump_file_index): Move cse2 after bp,
add DFI_null
(dump_file_info): Similary.
(rest_of_compilation): Avoid most of CFG rebuilds;
do first if converision after null pointer checks, do cse2
after branch prediction; avoid full liveness rebuild after
initializing subregs.
* invoke.texi (-d options): Document -du, renumber.
* cfgcleanup.c (bb_flags): Remove BB_UPDATE_LIFE.
(notice_new_block): Do not set BB_UPDATE_LIFE.
(try_forward_edges, merge_blocks_move_predecessor_nojumps,
merge_blocks_move_successor_nojumps, merge_blocks,
try_crossjump_to_edge): Likewise.
(try_optimize_cfg): Likewise; use update_life_info_in_dirty_blocks.
* cfgrtl.c (merge_blocks_nomove): Copy b's flags to a.
* ifcvt.c (SET_UPDATE_LIFE, UPDATE_LIFE): Kill.
(merge_of_block): Do not use life_data_ok.
(find_if_case_1): Do not use SET_UPDATE_LIFE.
(if_convert): Use BB_DIRTY mechanizm to update life.
* lcm.c (optimize_mode_switching): Update
update_life_info_in_dirty_blocks
From-SVN: r50127
Diffstat (limited to 'gcc/cfgrtl.c')
| -rw-r--r-- | gcc/cfgrtl.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/cfgrtl.c b/gcc/cfgrtl.c index 5b99ab2..1b00a61 100644 --- a/gcc/cfgrtl.c +++ b/gcc/cfgrtl.c @@ -271,6 +271,7 @@ create_basic_block_structure (index, head, end, bb_note) bb->head = head; bb->end = end; bb->index = index; + bb->flags = BB_NEW; BASIC_BLOCK (index) = bb; if (basic_block_for_insn) update_bb_for_insn (bb); @@ -592,6 +593,7 @@ merge_blocks_nomove (a, b) for (e = b->succ; e; e = e->succ_next) e->src = a; a->succ = b->succ; + a->flags |= b->flags; /* B hasn't quite yet ceased to exist. Attempt to prevent mishap. */ b->pred = b->succ = NULL; |