From b24ca895d7a5e5d18782a230f133cd8346f00c11 Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Wed, 12 Mar 2014 10:15:08 +0100
Subject: re PR middle-end/60482 (Loop optimization regression)

	PR middle-end/60482
	* tree-vrp.c (register_edge_assert_for_1): Don't add assert
	if there are multiple uses, but op doesn't live on E edge.
	* tree-cfg.c (assert_unreachable_fallthru_edge_p): Also ignore
	clobber stmts before __builtin_unreachable.

	* gcc.dg/vect/pr60482.c: New test.

From-SVN: r208506
---
 gcc/tree-cfg.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'gcc/tree-cfg.c')

diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c
index 325285c..56b6c35 100644
--- a/gcc/tree-cfg.c
+++ b/gcc/tree-cfg.c
@@ -410,9 +410,9 @@ assert_unreachable_fallthru_edge_p (edge e)
 	  if (gsi_end_p (gsi))
 	    return false;
 	  stmt = gsi_stmt (gsi);
-	  if (is_gimple_debug (stmt))
+	  while (is_gimple_debug (stmt) || gimple_clobber_p (stmt))
 	    {
-	      gsi_next_nondebug (&gsi);
+	      gsi_next (&gsi);
 	      if (gsi_end_p (gsi))
 		return false;
 	      stmt = gsi_stmt (gsi);
-- 
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