diff options
Diffstat (limited to 'gcc/cfg.c')
| -rw-r--r-- | gcc/cfg.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/gcc/cfg.c b/gcc/cfg.c index 6aeb79417f9..e6af6cfbaff 100644 --- a/gcc/cfg.c +++ b/gcc/cfg.c @@ -896,7 +896,11 @@ update_bb_profile_for_threading (basic_block bb, int edge_frequency, int scale = 65536 * REG_BR_PROB_BASE / prob; FOR_EACH_EDGE (c, ei, bb->succs) - c->probability = (c->probability * scale) / 65536; + { + c->probability = (c->probability * scale) / 65536; + if (c->probability > REG_BR_PROB_BASE) + c->probability = REG_BR_PROB_BASE; + } } gcc_assert (bb == taken_edge->src); @@ -917,6 +921,10 @@ scale_bbs_frequencies_int (basic_block *bbs, int nbbs, int num, int den) { int i; edge e; + if (num < 0) + num = 0; + if (num > den) + return; for (i = 0; i < nbbs; i++) { edge_iterator ei; |