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Message-ID: <14408.40281.802783.638154@lasker.666.com>
Date: Fri, 3 Dec 1999 20:49:29 -0800 (PST)
From: Martin Buchholz <martin AT xemacs DOT org>
To: Andy Piper <andy AT xemacs DOT org>, XEmacs Patches <xemacs-patches AT xemacs DOT org>
Cc: "Todd Goodman" <tsg AT bonedaddy DOT net>, <xemacs-beta AT xemacs DOT org>,
        Eric Christopher <echristo AT cygnus DOT com>, cygwin AT sourceware DOT cygnus DOT com
Subject: RE: gcc brokeness
In-Reply-To: <3.0.5.32.19991203124749.00bb6c90@london.beasys.com>
References: <3 DOT 0 DOT 5 DOT 32 DOT 19991202160010 DOT 009b6b50 AT london DOT beasys DOT com>
	<3 DOT 0 DOT 5 DOT 32 DOT 19991203124749 DOT 00bb6c90 AT london DOT beasys DOT com>
X-Mailer: VM 6.72 under 21.2  (beta20) "Yoko" XEmacs Lucid
Reply-To: martin AT xemacs DOT org

>>>>> "Andy" == Andy Piper <andy AT xemacs DOT org> writes:

Andy> At 08:52 PM 12/2/99 -0500, Todd Goodman wrote:
>> Are you using the Cygwin V1.0 compiler?

Andy> Yes.

>> If so, I've found that building with just -O (instead of -O2)
>> fixes it as does installing Mumit's 2.95.2 for v1.0.

Andy> Ok. We need to come up with something that means people can build OOTB with
Andy> cygwin 1.0.

Here's the fix that lets me compile with Linux CodeFusion.  It is
likely that the same fix will work for Cygwin.  Someone (Andy?) please
test this on Cygwin 1.0.

Cygnus and Cygwin guys, you're not off the hook yet.  You still need
to fix this serious bug!

Clues:

-O3  gives  ICE
-O2  gives  ICE
-O   gives  clean compile
-O2 -fno-strength-reduce  gives  clean compile

So a reasonable guess is that strength reduction optimizations are
broken.

--- event-stream.c	1999/11/28 18:15:46	1.45.2.14
+++ event-stream.c	1999/12/04 04:44:42
@@ -3177,11 +3169,9 @@
   int l = level;
   widget_value *current;
 
-  while (level >= 3)
-    {
-      --level;
-      lw_pop_menu ();
-    }
+  while (level-- >= 3)
+    lw_pop_menu ();
+
   menu_move_up ();
   current = lw_get_entries (False);
   if (l > 2 && current->contents)
@@ -3195,11 +3185,9 @@
   int l = level;
   widget_value *current;
 
-  while (level >= 3)
-    {
-      --level;
-      lw_pop_menu ();
-    }
+  while (level-- >= 3)
+    lw_pop_menu ();
+
   menu_move_down ();
   current = lw_get_entries (False);
   if (l > 2 && current->contents)

--
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