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authorrakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4>2007-01-12 17:57:40 +0000
committerrakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4>2007-01-12 17:57:40 +0000
commitdce58e66ae4584a9832bccb103a155df58be9806 (patch)
tree6cc0ea65afc6e5ab5c27890dd53712843ef3bc17 /gcc/loop-init.c
parent2656a84c1153d7b11ea2524305a8f5b9f66b17a6 (diff)
downloadgcc-dce58e66ae4584a9832bccb103a155df58be9806.tar.gz
* doc/loop.texi: Document recording of loop exits.
* cfgloopmanip.c (loopify, duplicate_loop): Use alloc_loop. (update_single_exits_after_duplication, update_single_exit_for_duplicated_loop, update_single_exit_for_duplicated_loops): Removed. (duplicate_loop_to_header_edge): Do not call update_single_exits_after_duplication and update_single_exit_for_duplicated_loops. (loop_version): Do not update single_exit information. (fix_loop_structure): Use record_loop_exits instead of mark_single_exit_loops. * tree-ssa-loop-manip.c (tree_transform_and_unroll_loop): Update the lists of loop exits. * cfghooks.c (redirect_edge_and_branch, redirect_edge_and_branch_force, split_edge, merge_blocks): Update the lists of loop exits. * modulo-sched.c (sms_schedule): Pass LOOPS_HAVE_RECORDED_EXITS to loop_optimizer_init. * loop-init.c (loop_optimizer_init): Call record_loop_exits instead of mark_single_exit_loops. (loop_optimizer_finalize): Call release_recorded_exits. * tree-ssa-loop.c (tree_loop_optimizer_init): Pass LOOPS_HAVE_RECORDED_EXITS to loop_optimizer_init. * tree-vectorizer.c (slpeel_tree_duplicate_loop_to_edge_cfg): Do not update single exit information. * lambda-code.c (perfect_nestify): Ditto. * cfgloop.c (flow_loop_free): Destroy the list of exits of the loop. (mark_single_exit_loops): Removed. (alloc_loop, loop_exit_hash, loop_exit_eq, loop_exit_free, get_exit_descriptions, rescan_loop_exit, record_loop_exits, dump_recorded_exit, dump_recorded_exits, release_recorded_exits): New functions. (get_loop_exit_edges, single_exit): Use recorded exit lists. (add_bb_to_loop, remove_bb_from_loops): Update the lists of loop exits. (verify_loop_structure): Verify consistency of the exit lists. (flow_loops_find): Use alloc_loop. Initialize exits hash. (set_single_exit): Removed. * cfgloop.h (struct loop_exit): New function. (struct loop): single_exit_ field replaced by exits field. (LOOPS_HAVE_MARKED_SINGLE_EXITS): Replaced by LOOPS_HAVE_RECORDED_EXITS. (struct loops): Added exits hash. (mark_single_exit_loops, set_single_exit): Declaration removed. (release_recorded_exits, record_loop_exits, rescan_loop_exit): Declare. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@120728 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/loop-init.c')
-rw-r--r--gcc/loop-init.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/loop-init.c b/gcc/loop-init.c
index 32e56b32a6a..1f049c1ad4d 100644
--- a/gcc/loop-init.c
+++ b/gcc/loop-init.c
@@ -88,8 +88,8 @@ loop_optimizer_init (unsigned flags)
if (flags & LOOPS_HAVE_MARKED_IRREDUCIBLE_REGIONS)
mark_irreducible_loops ();
- if (flags & LOOPS_HAVE_MARKED_SINGLE_EXITS)
- mark_single_exit_loops ();
+ if (flags & LOOPS_HAVE_RECORDED_EXITS)
+ record_loop_exits ();
/* Dump loops. */
flow_loops_dump (dump_file, NULL, 1);
@@ -118,6 +118,8 @@ loop_optimizer_finalize (void)
}
/* Clean up. */
+ if (current_loops->state & LOOPS_HAVE_RECORDED_EXITS)
+ release_recorded_exits ();
flow_loops_free (current_loops);
free (current_loops);
current_loops = NULL;