diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 055aa045e69f..574d5c2df10f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2017-06-08  Jan Hubicka  <hubicka@ucw.cz>
+
+	* cfgbuild.c (find_many_sub_basic_blocks): Fix thinko.
+
 2017-06-08  Martin Liska  <mliska@suse.cz>
 
 	PR gcov-profile/80911
diff --git a/gcc/cfgbuild.c b/gcc/cfgbuild.c
index f4a4d088251b..af73a5e131ca 100644
--- a/gcc/cfgbuild.c
+++ b/gcc/cfgbuild.c
@@ -655,7 +655,7 @@ find_many_sub_basic_blocks (sbitmap blocks)
 		    initialized_src = true;
 		  }
 		else
-		  uninitialized_src = false;
+		  uninitialized_src = true;
 		bb->frequency += EDGE_FREQUENCY (e);
 	      }
 	    /* When some edges are missing with read profile, this is