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Create an extra BB in profile-generate (PR tree-optimization/81041).

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2017-06-12  Martin Liska  <mliska@suse.cz>

	PR tree-optimization/81041
	* tree-profile.c (gimple_gen_ic_func_profiler):
	Create an extra BB in profile-generate
	(gimple_gen_time_profiler): Likewise.

From-SVN: r249120
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Martin Liska 2017-06-12 13:56:32 +02:00 committed by Martin Liska
parent 3b387bff56
commit c9c15e2749
2 changed files with 15 additions and 0 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2017-06-12 Martin Liska <mliska@suse.cz>
PR tree-optimization/81041
* tree-profile.c (gimple_gen_ic_func_profiler):
Create an extra BB in profile-generate
(gimple_gen_time_profiler): Likewise.
2017-06-12 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/81003

8
gcc/tree-profile.c
View File

@ -429,6 +429,10 @@ gimple_gen_ic_func_profiler (void)
basic_block cond_bb = split_edge (single_succ_edge (entry));
basic_block update_bb = split_edge (single_succ_edge (cond_bb));
/* We need to do an extra split in order to not create an input
for a possible PHI node. */
split_edge (single_succ_edge (update_bb));
edge true_edge = single_succ_edge (cond_bb);
true_edge->flags = EDGE_TRUE_VALUE;
@ -487,6 +491,10 @@ gimple_gen_time_profiler (unsigned tag, unsigned base)
basic_block cond_bb = split_edge (single_succ_edge (entry));
basic_block update_bb = split_edge (single_succ_edge (cond_bb));
/* We need to do an extra split in order to not create an input
for a possible PHI node. */
split_edge (single_succ_edge (update_bb));
edge true_edge = single_succ_edge (cond_bb);
true_edge->flags = EDGE_TRUE_VALUE;
true_edge->probability = PROB_UNLIKELY;