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| author | rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-01-03 02:29:00 +0000 |
|---|---|---|
| committer | rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-01-03 02:29:00 +0000 |
| commit | 7cef6c97cbe9575d82af3934ba9db98706d40dbd (patch) | |
| tree | 65c401413cfba6d2049e2a002755074729d4e079 /gcc/tree-vect-transform.c | |
| parent | f517b36eec084c177098f54c4755ab7222fb7e2f (diff) | |
| download | gcc-7cef6c97cbe9575d82af3934ba9db98706d40dbd.tar.gz | |
* loop-unswitch.c (unswitch_loop): Pass probabilities to loopify.
* tree-ssa-loop-unswitch.c (tree_unswitch_loop): Pass probabilities
to loop_version.
* cfgloopmanip.c (scale_loop_frequencies): Export.
(loopify): Scale the frequencies by prescribed coefficients.
(set_zero_probability): New function.
(duplicate_loop_to_header_edge): Improve updating of frequencies.
(lv_adjust_loop_entry_edge, loop_version): Set probabilities
and frequencies according to arguments.
* tree-ssa-loop-manip.c (tree_unroll_loop): Set probabilities
correctly.
* cfg.c (scale_bbs_frequencies_int): Allow scaling the frequencies up.
* modulo-sched.c (sms_schedule): Set probabilities for entering
versioned loop correctly.
* tree-vect-transform.c (vect_transform_loop): Ditto.
* cfgloop.h (loopify, loop_version): Declaration changed.
(scale_loop_frequencies): Declared.
* gcc.dg/tree-ssa/update-unroll-1.c: New test.
* gcc.dg/tree-ssa/update-unswitch-1.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@120378 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-vect-transform.c')
| -rw-r--r-- | gcc/tree-vect-transform.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/tree-vect-transform.c b/gcc/tree-vect-transform.c index e767d1fabaf..ec3f511e74e 100644 --- a/gcc/tree-vect-transform.c +++ b/gcc/tree-vect-transform.c @@ -4699,11 +4699,13 @@ vect_transform_loop (loop_vec_info loop_vinfo) basic_block new_exit_bb; edge new_exit_e, e; tree orig_phi, new_phi, arg; + unsigned prob = 4 * REG_BR_PROB_BASE / 5; cond_expr = vect_create_cond_for_align_checks (loop_vinfo, &cond_expr_stmt_list); initialize_original_copy_tables (); - nloop = loop_version (loop, cond_expr, &condition_bb, true); + nloop = loop_version (loop, cond_expr, &condition_bb, + prob, prob, REG_BR_PROB_BASE - prob, true); free_original_copy_tables(); /** Loop versioning violates an assumption we try to maintain during |