Short circuit case where profiles are same.

* profile-count.c (profile_count::to_sreal_scale): Short circuit case where profiles are same. From-SVN: r278022

Short circuit case where profiles are same.
* profile-count.c (profile_count::to_sreal_scale): Short circuit case where profiles are same. From-SVN: r278022
65eaab18 · Jan Hubicka · Jan Hubicka · d07f74fa · 65eaab18 · 65eaab18
Commit 65eaab18 authored Nov 10, 2019 by Jan Hubicka Committed by Jan Hubicka Nov 10, 2019
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gcc/ChangeLog
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gcc/profile-count.c
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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
 2019-11-10  Jan Hubicka  <hubicka@ucw.cz>

+	* profile-count.c (profile_count::to_sreal_scale): Short circuit
+	case where profiles are same.
+
+2019-11-10  Jan Hubicka  <hubicka@ucw.cz>
+
 	* cgraph.c (cgraph_edge::maybe_hot_p): Do not use sreal_frequency.

 2019-11-10  Jan Hubicka  <hubicka@ucw.cz>
--- a/gcc/profile-count.c
+++ b/gcc/profile-count.c
@@ -312,6 +312,8 @@ profile_count::to_sreal_scale (profile_count in, bool *known) const
    *known = true;
  if (*this == zero ())
    return 0;
+  if (m_val == in.m_val)
+    return 1;

  if (!in.m_val)
    {