From: Jan Hubicka <jh@suse.cz>
Date: Thu, 7 Oct 2010 11:18:28 +0000 (+0200)
Subject: * lto.c (lto_balanced_map): Do not produce empty partitions.
X-Git-Tag: upstream/12.2.0~89658
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2169830c85bc48c43ae14fc0317206a7b7b2fb44;p=platform%2Fupstream%2Fgcc.git

* lto.c (lto_balanced_map): Do not produce empty partitions.

From-SVN: r165093
---

diff --git a/gcc/lto/ChangeLog b/gcc/lto/ChangeLog
index 2bce315..fbe447f 100644
--- a/gcc/lto/ChangeLog
+++ b/gcc/lto/ChangeLog
@@ -1,3 +1,7 @@
+2010-10-06  Jan Hubicka  <jh@suse.cz>
+
+	* lto.c (lto_balanced_map): Do not produce empty partitions.
+
 2010-10-06  Andi Kleen <ak@linux.intel.com>
 
 	* lto.c (lto_process_name): Add.
diff --git a/gcc/lto/lto.c b/gcc/lto/lto.c
index 12fa613..25280a7 100644
--- a/gcc/lto/lto.c
+++ b/gcc/lto/lto.c
@@ -1212,6 +1212,9 @@ lto_balanced_map (void)
 	      undo_partition (partition, best_n_nodes, best_n_varpool_nodes);
 	    }
 	  i = best_i;
+ 	  /* When we are finished, avoid creating empty partition.  */
+	  if (i == n_nodes - 1)
+	    break;
 	  partition = new_partition ("");
 	  last_visited_cgraph_node = 0;
 	  last_visited_varpool_node = 0;