Re: c++/5246: g++ 3.0.3: exception throw crash when -O -fomit-frame-pointer

[Gwenole Beauchesne <gbeauchesne@mandrakesoft.com>]

The following reply was made to PR c++/5246; it has been noted by GNATS.

From: Gwenole Beauchesne <gbeauchesne@mandrakesoft.com>
To: gcc-gnats@gcc.gnu.org, gcc-prs@gcc.gnu.org, eru@netti.fi,
        gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org
Cc: gdr@codesourcery.com
Subject: Re: c++/5246: g++ 3.0.3: exception throw crash when -O -fomit-frame-pointer
Date: Tue, 12 Feb 2002 16:24:36 +0100

 Hi Gaby,
 
 The following should fit the new-style dejagnu framework. Note: though 
 this happens to be fixed for 3.1, the problem remains for gcc-3.0.X, 
 even with X=4 as of 06-Feb-2002.
 
 2002-02-12  Gwenole Beauchesne  <gbeauchesne@mandrakesoft.com>
 
     PR c++/5246, PR c++/2447
     * g++.dg/eh/unwind1.C: New test.
 
 --- gcc/testsuite/g++.dg/eh/unwind1.C.eh-failure    Tue Feb 12 11:57:44 2002
 +++ gcc/testsuite/g++.dg/eh/unwind1.C    Tue Feb 12 11:57:44 2002
 @@ -0,0 +1,34 @@
 +// Reduced from PR c++/5246, PR c++/2447
 +// { dg-do run }
 +// { dg-options "-O -fomit-frame-pointer" }
 +
 +void step (int)
 +{
 +  void *sp = __builtin_alloca (0);
 +}
 +
 +void f2 (void)
 +{
 +  step (2);
 +  throw int();
 +}
 +
 +void f1 (void)
 +{
 +  try
 +    {
 +      step (1);
 +      f2 ();
 +      step (-1);
 +    }
 +  catch (int)
 +    {
 +      step (3);
 +    }
 +}
 +
 +int main ()
 +{
 +  f1 ();
 +  return 0;
 +}
 
 Bye,
 Gwenole.
 
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5246