diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/ipa-cp.c | 10 |
2 files changed, 13 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 913e202..7825a25 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2011-07-26 Martin Jambor <mjambor@suse.cz> + + PR bootstrap/49786 + * ipa-cp.c (update_profiling_info): Avoid overflow when updating + counts. + (update_specialized_profile): Likewise. + 2011-07-26 Uros Bizjak <ubizjak@gmail.com> H.J. Lu <hongjiu.lu@intel.com> diff --git a/gcc/ipa-cp.c b/gcc/ipa-cp.c index dc8cf09..94118b7 100644 --- a/gcc/ipa-cp.c +++ b/gcc/ipa-cp.c @@ -1877,7 +1877,6 @@ dump_profile_updates (struct cgraph_node *orig_node, cgraph_node_name (cs->callee), (HOST_WIDE_INT) cs->count); } - /* After a specialized NEW_NODE version of ORIG_NODE has been created, update their profile information to reflect this. */ @@ -1923,12 +1922,14 @@ update_profiling_info (struct cgraph_node *orig_node, for (cs = new_node->callees; cs ; cs = cs->next_callee) if (cs->frequency) - cs->count = cs->count * new_sum / orig_node_count; + cs->count = cs->count * (new_sum * REG_BR_PROB_BASE + / orig_node_count) / REG_BR_PROB_BASE; else cs->count = 0; for (cs = orig_node->callees; cs ; cs = cs->next_callee) - cs->count = cs->count * remainder / orig_node_count; + cs->count = cs->count * (remainder * REG_BR_PROB_BASE + / orig_node_count) / REG_BR_PROB_BASE; if (dump_file) dump_profile_updates (orig_node, new_node); @@ -1966,7 +1967,8 @@ update_specialized_profile (struct cgraph_node *new_node, for (cs = orig_node->callees; cs ; cs = cs->next_callee) { - gcov_type dec = cs->count * redirected_sum / orig_node_count; + gcov_type dec = cs->count * (redirected_sum * REG_BR_PROB_BASE + / orig_node_count) / REG_BR_PROB_BASE; if (dec < cs->count) cs->count -= dec; else |