From 35896b18ecb8ac88c4c21b2b21c01e9d435a5ebe Mon Sep 17 00:00:00 2001
From: Jan Hubicka <hubicka@ucw.cz>
Date: Tue, 18 Jul 2017 15:51:22 +0200
Subject: 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
---
 gcc/cfgloopmanip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'gcc/cfgloopmanip.c')

diff --git a/gcc/cfgloopmanip.c b/gcc/cfgloopmanip.c
index f62c829..fd335c3 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;
 
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