Path: utzoo!telly!ddsw1!lll-winken!xanth!ames!mailrus!jarvis.csri.toronto.edu!utgpu!watmath!uunet!mcvax!hp4nl!ruuinf!piet
From: piet@ruuinf (Piet van Oostrum)
Newsgroups: gnu.gcc.bug
Subject: Re: bug in switch (constant)
Message-ID: <1142@ruuinf.UUCP>
Date: 16 Feb 89 17:23:54 GMT
References: <1141@ruuinf.UUCP>
Sender: piet@ruuinf.UUCP
Reply-To: piet@ruuinf (Piet van Oostrum)
Organization: Dept of Computer Science, University of Utrecht, Holland
Lines: 30
In-reply-to: piet@ruuinf (Piet van Oostrum)

In article <1141@ruuinf.UUCP>, piet@ruuinf (Piet van Oostrum) writes:
 `GCC version 1.32 generates wrong code for a switch with a constant
 `expression.

The error is a reversed test in stmt.c:
------------------------------------------------------------------------
*** stmt.c.~1~	Tue Jan 17 13:52:25 1989
--- stmt.c	Thu Feb 16 18:19:47 1989
***************
*** 2296,2302
  		      && ! tree_int_cst_lt (n->high, index_expr))
  		    break;
  		}
! 	      if (n)
  		emit_jump (default_label);
  	      else
  		emit_jump (label_rtx (n->code_label));

--- 2296,2302 -----
  		      && ! tree_int_cst_lt (n->high, index_expr))
  		    break;
  		}
! 	      if (!n)
  		emit_jump (default_label);
  	      else
  		emit_jump (label_rtx (n->code_label));
-- 
Piet van Oostrum, Dept of Computer Science, University of Utrecht
Padualaan 14, P.O. Box 80.089, 3508 TB Utrecht, The Netherlands
Telephone: +31-30-531806. piet@cs.ruu.nl (mcvax!hp4nl!ruuinf!piet)