diff options
Diffstat (limited to 'gcc/cfghooks.c')
| -rw-r--r-- | gcc/cfghooks.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/cfghooks.c b/gcc/cfghooks.c index e6a624c3550..948c2b4c13d 100644 --- a/gcc/cfghooks.c +++ b/gcc/cfghooks.c @@ -389,6 +389,7 @@ split_edge (edge e) gcov_type count = e->count; int freq = EDGE_FREQUENCY (e); edge f; + bool irr = (e->flags & EDGE_IRREDUCIBLE_LOOP) != 0; if (!cfg_hooks->split_edge) internal_error ("%s does not support split_edge.", cfg_hooks->name); @@ -399,6 +400,13 @@ split_edge (edge e) EDGE_SUCC (ret, 0)->probability = REG_BR_PROB_BASE; EDGE_SUCC (ret, 0)->count = count; + if (irr) + { + ret->flags |= BB_IRREDUCIBLE_LOOP; + EDGE_PRED (ret, 0)->flags |= EDGE_IRREDUCIBLE_LOOP; + EDGE_SUCC (ret, 0)->flags |= EDGE_IRREDUCIBLE_LOOP; + } + if (dom_computed[CDI_DOMINATORS]) set_immediate_dominator (CDI_DOMINATORS, ret, EDGE_PRED (ret, 0)->src); |