procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

bb-reorder.c (better_edge_p): Fix handling of uninitialized probability.

Browse source 
* bb-reorder.c (better_edge_p): Fix handling of uninitialized
	probability.

From-SVN: r249966
This commit is contained in:
Jan Hubicka 2017-07-04 15:41:21 +02:00 • committed by Jan Hubicka
parent e5d811676f
commit 4741e46d77
2 changed files with 6 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
gcc/ChangeLog
View file

@ -1,3 +1,8 @@
2017-07-04 Jan Hubicka <hubicka@ucw.cz>
* bb-reorder.c (better_edge_p): Fix handling of uninitialized
probability.
2017-07-04 Richard Sandiford <richard.sandiford@linaro.org>
PR tree-optimization/81292

2
gcc/bb-reorder.c
View file

@ -957,7 +957,7 @@ better_edge_p (const_basic_block bb, const_edge e, profile_probability prob,
return !cur_best_edge
|| cur_best_edge->dest->index > e->dest->index;
if (prob > best_prob + diff_prob)
if (prob > best_prob + diff_prob || !best_prob.initialized_p ())
/* The edge has higher probability than the temporary best edge. */
is_better_edge = true;
else if (prob < best_prob - diff_prob)