From patchwork Wed Feb 20 13:35:43 2013
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Subject: Fix PR56398
From: Richard Guenther <rguenther@suse.de>
X-Patchwork-Id: 222084
Message-Id: <alpine.LNX.2.00.1302201434320.3543@zhemvz.fhfr.qr>
To: gcc-patches@gcc.gnu.org
Date: Wed, 20 Feb 2013 14:35:43 +0100 (CET)

This fixes an ICE because gimple_bb of a default def stmt is NULL.
Just don't do anything here, we're not going to adjust anything
anyway for them.

Bootstrapped and tested on x86_64-unknown-linux-gnu, applied.

Richard.

2013-02-20  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/56398
	* tree-vect-loop-manip.c (adjust_debug_stmts): Skip
	SSA default defs.


Index: gcc/tree-vect-loop-manip.c
===================================================================
--- gcc/tree-vect-loop-manip.c	(revision 196169)
+++ gcc/tree-vect-loop-manip.c	(working copy)
@@ -187,6 +187,7 @@ adjust_debug_stmts (tree from, tree to,
 
   if (MAY_HAVE_DEBUG_STMTS
       && TREE_CODE (from) == SSA_NAME
+      && ! SSA_NAME_IS_DEFAULT_DEF (from)
       && ! virtual_operand_p (from))
     {
       ai.from = from;