From: Jan Hubicka <hubicka@ucw.cz>
Date: Tue, 18 Jul 2017 13:51:22 +0000 (+0200)
Subject: re PR tree-optimization/81463 (ICE in scale_loop_profile at gcc/cfgloopmanip.c:603)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=35896b18ecb8ac88c4c21b2b21c01e9d435a5ebe;p=gcc.git

re PR tree-optimization/81463 (ICE in scale_loop_profile at gcc/cfgloopmanip.c:603)


	PR middle-end/81463
	* cfgloopmanip.c (scale_loop_profile): Watch out for zero frequency
	again.

From-SVN: r250311
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 892c0258534..601de6a110a 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2017-07-18  Jan Hubicka  <hubicka@ucw.cz>
+
+	PR middle-end/81463
+	* cfgloopmanip.c (scale_loop_profile): Watch out for zero frequency
+	again.
+
 2017-07-18  Jan Hubicka  <hubicka@ucw.cz>
 
 	PR middle-end/81462
diff --git a/gcc/cfgloopmanip.c b/gcc/cfgloopmanip.c
index f62c829bd5f..fd335c3fe1d 100644
--- a/gcc/cfgloopmanip.c
+++ b/gcc/cfgloopmanip.c
@@ -591,7 +591,7 @@ scale_loop_profile (struct loop *loop, profile_probability p,
 	      determined = true;
 	    }
 	}
-      if (!determined)
+      if (!determined && loop->header->frequency)
 	{
 	  int freq_in = 0;