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| author | rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-09-25 12:53:26 +0000 |
|---|---|---|
| committer | rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-09-25 12:53:26 +0000 |
| commit | 41fc6ce4194416f39ae2907317ac9c5975dac36b (patch) | |
| tree | cba6592637f7c6bfb3cb621ea30411b61bce6227 /gcc/tree-ssa-loop.c | |
| parent | 06780ca85d136fa33ff15b7c59bf0365ca1869e3 (diff) | |
| download | gcc-41fc6ce4194416f39ae2907317ac9c5975dac36b.tar.gz | |
* tree-optimize.c (init_tree_optimization_passes): Add
pass_record_bounds.
* tree-pass.h (pass_record_bounds): Declare.
* tree-ssa-loop.c (tree_ssa_loop_bounds, pass_record_bounds):
New pass.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@88097 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-loop.c')
| -rw-r--r-- | gcc/tree-ssa-loop.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/tree-ssa-loop.c b/gcc/tree-ssa-loop.c index 19f784d9bbf..b1d854e9acd 100644 --- a/gcc/tree-ssa-loop.c +++ b/gcc/tree-ssa-loop.c @@ -297,6 +297,35 @@ struct tree_opt_pass pass_iv_canon = 0 /* letter */ }; +/* Record bounds on numbers of iterations of loops. */ + +static void +tree_ssa_loop_bounds (void) +{ + if (!current_loops) + return; + + estimate_numbers_of_iterations (current_loops); + scev_reset (); +} + +struct tree_opt_pass pass_record_bounds = +{ + "bounds", /* name */ + NULL, /* gate */ + tree_ssa_loop_bounds, /* execute */ + NULL, /* sub */ + NULL, /* next */ + 0, /* static_pass_number */ + 0, /* tv_id */ + PROP_cfg | PROP_ssa, /* properties_required */ + 0, /* properties_provided */ + 0, /* properties_destroyed */ + 0, /* todo_flags_start */ + 0, /* todo_flags_finish */ + 0 /* letter */ +}; + /* Complete unrolling of loops. */ static void |