diff options
Diffstat (limited to 'gcc/sched-ebb.c')
| -rw-r--r-- | gcc/sched-ebb.c | 31 |
1 files changed, 11 insertions, 20 deletions
diff --git a/gcc/sched-ebb.c b/gcc/sched-ebb.c index 5ec1de017b4..9a28e2bfc4b 100644 --- a/gcc/sched-ebb.c +++ b/gcc/sched-ebb.c @@ -431,32 +431,23 @@ add_deps_for_risky_insns (rtx head, rtx tail) rank. */ if (! sched_insns_conditions_mutex_p (insn, prev)) { - dep_def _dep, *dep = &_dep; - - init_dep (dep, prev, insn, REG_DEP_ANTI); - - if (!(current_sched_info->flags & USE_DEPS_LIST)) + if ((current_sched_info->flags & DO_SPECULATION) + && (spec_info->mask & BEGIN_CONTROL)) { - enum DEPS_ADJUST_RESULT res; + dep_def _dep, *dep = &_dep; - res = sd_add_or_update_dep (dep, false); + init_dep (dep, prev, insn, REG_DEP_ANTI); - /* We can't change an existing dependency with - DEP_ANTI. */ - gcc_assert (res != DEP_CHANGED); - } - else - { - if ((current_sched_info->flags & DO_SPECULATION) - && (spec_info->mask & BEGIN_CONTROL)) - DEP_STATUS (dep) = set_dep_weak (DEP_ANTI, BEGIN_CONTROL, - MAX_DEP_WEAK); + if (current_sched_info->flags & USE_DEPS_LIST) + { + DEP_STATUS (dep) = set_dep_weak (DEP_ANTI, BEGIN_CONTROL, + MAX_DEP_WEAK); + } sd_add_or_update_dep (dep, false); - - /* Dep_status could have been changed. - No assertion here. */ } + else + add_dependence (insn, prev, REG_DEP_CONTROL); } break; |