From 4b5553a3a115a1822c78b95caa6bf9e3836be017 Mon Sep 17 00:00:00 2001
From: bstarynk <bstarynk@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 29 Oct 2009 09:21:19 +0000
Subject: 2009-10-29  Basile Starynkevitch  <basile@starynkevitch.net>        
 MELT branch merged with trunk rev 153696

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/melt-branch@153697 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/alias.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'gcc/alias.c')

diff --git a/gcc/alias.c b/gcc/alias.c
index 40226f26b17..1d4290f7848 100644
--- a/gcc/alias.c
+++ b/gcc/alias.c
@@ -2200,6 +2200,13 @@ nonoverlapping_memrefs_p (const_rtx x, const_rtx y)
   if (! DECL_P (exprx) || ! DECL_P (expry))
     return 0;
 
+  /* With invalid code we can end up storing into the constant pool.
+     Bail out to avoid ICEing when creating RTL for this.
+     See gfortran.dg/lto/20091028-2_0.f90.  */
+  if (TREE_CODE (exprx) == CONST_DECL
+      || TREE_CODE (expry) == CONST_DECL)
+    return 1;
+
   rtlx = DECL_RTL (exprx);
   rtly = DECL_RTL (expry);
 
-- 
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