From 2315a5db3894d58f58e5c8777ea65f1eef854923 Mon Sep 17 00:00:00 2001
From: Richard Stallman <rms@gnu.org>
Date: Mon, 15 Nov 1993 00:25:53 +0000
Subject: [PATCH] (twoval_comparison_p): Do nothing for SAVE_EXPR, at least for
 now.

From-SVN: r6090
---
 gcc/fold-const.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index cf50da4eb4a..27f6baba921 100644
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -1921,6 +1921,11 @@ twoval_comparison_p (arg, cval1, cval2, save_p)
 	   && (code == TRUTH_ANDIF_EXPR || code == TRUTH_ORIF_EXPR
 	       || code == COMPOUND_EXPR))
     class = '2';
+
+  /* ??? Disable this since the SAVE_EXPR might already be in use outside
+     the expression.  There may be no way to make this work, but it needs
+     to be looked at again for 2.6.  */
+#if 0
   else if (class == 'e' && code == SAVE_EXPR && SAVE_EXPR_RTL (arg) == 0)
     {
       /* If we've already found a CVAL1 or CVAL2, this expression is
@@ -1931,6 +1936,7 @@ twoval_comparison_p (arg, cval1, cval2, save_p)
       class = '1';
       *save_p = 1;
     }
+#endif
 
   switch (class)
     {
-- 
2.30.2