From e80c9ccb758e407e5740784ec6a17f01c5352f93 Mon Sep 17 00:00:00 2001
From: Richard Kenner <kenner@gcc.gnu.org>
Date: Sat, 15 Feb 1997 18:49:22 -0500
Subject: [PATCH] (fold): Don't assume a nonexplicit constant cannot equal an
 explicit one.

From-SVN: r13650
---
 gcc/fold-const.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index 1b49128d1b1..f75d479637e 100644
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -5335,6 +5335,7 @@ fold (expr)
 			      0);
 	}
 
+#if 0 /* This is no longer useful, but breaks some real code.  */
       /* Assume a nonexplicit constant cannot equal an explicit one,
 	 since such code would be undefined anyway.
 	 Exception: on sysvr4, using #pragma weak,
@@ -5345,7 +5346,7 @@ fold (expr)
 	       && TREE_CODE (arg0) == ADDR_EXPR
 	       && code == EQ_EXPR)
 	t1 = build_int_2 (0, 0);
-
+#endif
       /* Two real constants can be compared explicitly.  */
       else if (TREE_CODE (arg0) == REAL_CST && TREE_CODE (arg1) == REAL_CST)
 	{
-- 
2.30.2