From 1f1fd3b1f4fab5806976d2ea98c0176840061c50 Mon Sep 17 00:00:00 2001
From: Richard Stallman <rms@gnu.org>
Date: Mon, 12 Oct 1992 08:23:25 +0000
Subject: [PATCH] (output_addr_const): Call simplify_subtraction.

From-SVN: r2403
---
 gcc/final.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gcc/final.c b/gcc/final.c
index d82d553..49df7b0 100644
--- a/gcc/final.c
+++ b/gcc/final.c
@@ -2278,6 +2278,12 @@ output_addr_const (file, x)
       break;
 
     case MINUS:
+      /* Avoid outputting things like x-x or x+5-x,
+	 since some assemblers can't handle that.  */
+      x = simplify_subtraction (x);
+      if (GET_CODE (x) != MINUS)
+	goto restart;
+
       output_addr_const (file, XEXP (x, 0));
       fprintf (file, "-");
       if (GET_CODE (XEXP (x, 1)) == CONST_INT
-- 
2.7.4