ipa-fnsummary.c (ipa_call_context::estimate_size_and_time, [...]): Micro optimize.

	* ipa-fnsummary.c (ipa_call_context::estimate_size_and_time,
	ipa_merge_fn_summary_after_inlining): Micro optimize.

From-SVN: r278222

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 42758b1..c96683b 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
 2019-11-14  Jan Hubicka  <hubicka@ucw.cz>
 
+       * ipa-fnsummary.c (ipa_call_context::estimate_size_and_time,
+       ipa_merge_fn_summary_after_inlining): Micro optimize.
+
+2019-11-14  Jan Hubicka  <hubicka@ucw.cz>
+
        * params.opt (max-inline-insns-single-O2): Set to 70 (instead of 30).
 
 2019-11-14  Jan Hubicka  <hubicka@ucw.cz>

diff --git a/gcc/ipa-fnsummary.c b/gcc/ipa-fnsummary.c
index 9d8e1a5..a88f300 100644 (file)
--- a/gcc/ipa-fnsummary.c
+++ b/gcc/ipa-fnsummary.c
@@ -3353,7 +3353,10 @@ ipa_call_context::estimate_size_and_time (int *ret_size,
                                                m_inline_param_summary);
              gcc_checking_assert (prob >= 0);
              gcc_checking_assert (prob <= REG_BR_PROB_BASE);
-             time += e->time * prob / REG_BR_PROB_BASE;
+             if (prob == REG_BR_PROB_BASE)
+               time += e->time;
+             else
+               time += e->time * prob / REG_BR_PROB_BASE;
            }
          gcc_checking_assert (time >= 0);
         }
@@ -3707,7 +3710,8 @@ ipa_merge_fn_summary_after_inlining (struct cgraph_edge *edge)
          sreal add_time = ((sreal)e->time * freq);
          int prob = e->nonconst_predicate.probability (callee_info->conds,
                                                        clause, es->param);
-         add_time = add_time * prob / REG_BR_PROB_BASE;
+         if (prob != REG_BR_PROB_BASE)
+           add_time = add_time * prob / REG_BR_PROB_BASE;
          if (prob != REG_BR_PROB_BASE
              && dump_file && (dump_flags & TDF_DETAILS))
            {