From: Jan Hubicka <hubicka@ucw.cz>
Date: Sun, 10 Nov 2019 18:15:34 +0000 (+0100)
Subject: Short circuit case where profiles are same.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=65eaab18b100ab83f1a05501e10b21875c72c299;p=gcc.git

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
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index bdc3067e63c..d2c7242d794 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+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.
diff --git a/gcc/profile-count.c b/gcc/profile-count.c
index 6198675eb89..6f6c0a9e832 100644
--- 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)
     {