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Commit b543d680 by Jan Hubicka Committed by Jan Hubicka
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* tree-complex.c (expand_complex_div_wide): update profile. 

From-SVN: r249884
parent ef29f5dd
Showing with 16 additions and 3 deletions
gcc/ChangeLog
2017-07-02 Jan Hubicka <hubicka@ucw.cz>
* tree-complex.c (expand_complex_div_wide): update profile.
2017-07-02 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
......
gcc/tree-complex.c
......@@ -1186,13 +1186,22 @@ expand_complex_div_wide (gimple_stmt_iterator *gsi, tree inner_type,
bb_join = e->dest;
bb_true = create_empty_bb (bb_cond);
bb_false = create_empty_bb (bb_true);
bb_true->frequency = bb_false->frequency = bb_cond->frequency / 2;
bb_true->count = bb_false->count
= bb_cond->count.apply_probability (profile_probability::even ());
/* Wire the blocks together. */
e->flags = EDGE_TRUE_VALUE;
e->count = bb_true->count;
/* TODO: With value profile we could add an historgram to determine real
branch outcome. */
e->probability = profile_probability::even ();
redirect_edge_succ (e, bb_true);
make_edge (bb_cond, bb_false, EDGE_FALSE_VALUE);
make_edge (bb_true, bb_join, EDGE_FALLTHRU);
make_edge (bb_false, bb_join, EDGE_FALLTHRU);
edge e2 = make_edge (bb_cond, bb_false, EDGE_FALSE_VALUE);
e2->count = bb_false->count;
e2->probability = profile_probability::even ();
make_single_succ_edge (bb_true, bb_join, EDGE_FALLTHRU);
make_single_succ_edge (bb_false, bb_join, EDGE_FALLTHRU);
add_bb_to_loop (bb_true, bb_cond->loop_father);
add_bb_to_loop (bb_false, bb_cond->loop_father);
......
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