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| author | Zdenek Dvorak <dvorakz@suse.cz> | 2005-02-10 00:32:47 +0000 |
|---|---|---|
| committer | Zdenek Dvorak <dvorakz@suse.cz> | 2005-02-10 00:32:47 +0000 |
| commit | 9f6f92008e6e2b35a075ee973c3dc0e4eddce3a7 (patch) | |
| tree | 97fb019298ce16faec345a7102ee459f0b806cce /gcc/tree.h | |
| parent | b8c72a7cc853d9f9339782a4d00a0ee86fdd2c56 (diff) | |
PR tree-optimization/18687
* tree-flow.h (find_loop_niter): Declare.
* tree-ssa-loop-ivcanon.c (canonicalize_loop_induction_variables):
Try using scev even for loops with more than one exit.
* tree-ssa-loop-ivopts.c (struct loop_data): Removed niter field.
(struct ivopts_data): Added niters field.
(struct nfe_cache_elt): New.
(nfe_hash, nfe_eq, niter_for_exit, niter_for_single_dom_exit): New
functions.
(tree_ssa_iv_optimize_init): Initialize niters cache.
(determine_number_of_iterations): Removed.
(find_induction_variables): Do not call determine_number_of_iterations.
Access niters for single exit through niter_for_single_dom_exit.
(add_iv_outer_candidates): Access niters for single exit through
niter_for_single_dom_exit.
(may_eliminate_iv): Take data argument. Use niter_for_exit. Do not use
number_of_iterations_cond.
(iv_period): New function.
(determine_use_iv_cost_condition): Pass data to may_eliminate_iv.
(may_replace_final_value): Take data argument. Use
niter_for_single_dom_exit.
(determine_use_iv_cost_outer): Pass data to may_replace_final_value.
(rewrite_use_compare): Pass data to may_eliminate_iv.
(rewrite_use_outer): Pass data to may_replace_final_value.
(free_loop_data): Clean up the niters cache.
(tree_ssa_iv_optimize_finalize): Free the niters cache.
(tree_ssa_iv_optimize_loop): Do not call loop_commit_inserts.
* tree-ssa-loop-niter.c (find_loop_niter): New function.
(find_loop_niter_by_eval): Use tree_int_cst_lt.
(num_ending_zeros): Moved to tree.c.
* tree.h (num_ending_zeros): Declare.
* tree.c (num_ending_zeros): Moved from tree.c.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@94787 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree.h')
| -rw-r--r-- | gcc/tree.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/tree.h b/gcc/tree.h index 60ebc737b5c..4b14d3fdfe3 100644 --- a/gcc/tree.h +++ b/gcc/tree.h @@ -3275,6 +3275,7 @@ extern int integer_nonzerop (tree); extern bool zero_p (tree); extern bool cst_and_fits_in_hwi (tree); +extern tree num_ending_zeros (tree); /* staticp (tree x) is nonzero if X is a reference to data allocated at a fixed address in memory. Returns the outermost data. */ |