From: hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 23 Oct 2015 18:05:55 +0000 (+0000)
Subject: 	* fold-const.c (operand_equal_p): Do not compare TYPE_MODE when
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=2425f3b6ce0532030e1e4274d0fc82a5d7e16c79;p=thirdparty%2Fgcc.git

	* fold-const.c (operand_equal_p): Do not compare TYPE_MODE when
	comparing addresses.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@229265 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index df246e672ed9..716b6320e42d 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2015-10-23  Jan Hubicka  <hubicka@ucw.cz>
+
+	* fold-const.c (operand_equal_p): Do not compare TYPE_MODE when
+	comparing addresses.
+
 2015-10-23  Jan Hubicka  <hubicka@ucw.cz>
 
 	* fold-const.c (operand_equal_p): Handle matching of vector
diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index 018cb03f8995..df49f87f716a 100644
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -2809,11 +2809,12 @@ operand_equal_p (const_tree arg0, const_tree arg1, unsigned int flags)
 	return 0;
     }
 
-  /* This is needed for conversions and for COMPONENT_REF.
-     Might as well play it safe and always test this.  */
+  /* When not checking adddresses, this is needed for conversions and for
+     COMPONENT_REF.  Might as well play it safe and always test this.  */
   if (TREE_CODE (TREE_TYPE (arg0)) == ERROR_MARK
       || TREE_CODE (TREE_TYPE (arg1)) == ERROR_MARK
-      || TYPE_MODE (TREE_TYPE (arg0)) != TYPE_MODE (TREE_TYPE (arg1)))
+      || (TYPE_MODE (TREE_TYPE (arg0)) != TYPE_MODE (TREE_TYPE (arg1))
+	  && !(flags & OEP_ADDRESS_OF)))
     return 0;
 
   /* If ARG0 and ARG1 are the same SAVE_EXPR, they are necessarily equal.