[PATCH]: malloc (0) during throw etc

[Nathan Sidwell <nathan at codesourcery dot com>]

Hi,
Under the obvious rule I've installed the attached, which is
Denis Perchine's patch to avoid malloc (0), and a tweak of mine
to avoid
	if (ptr) { .... if (ptr) free (ptr);}

booted & tested on i686-pc-linux-gnu

Denis, next time could you provide you patches with a ChangeLog
entry (even such one-liners), and provide -c3p diff's. See 
http://gcc.gnu.org/contribute.html for details. This one's
small enough to not need an assignment.


nathan
-- 
Dr Nathan Sidwell   ::   http://www.codesourcery.com   ::   CodeSourcery LLC
         'But that's a lie.' - 'Yes it is. What's your point?'
nathan@codesourcery.com : http://www.cs.bris.ac.uk/~nathan/ : nathan@acm.org
2000-06-08  Nathan Sidwell  <nathan@codesourcery.com>

	* frame.c (end_fde_sort): Remove extraneous erratic array test.

2000-06-08  Denis Perchine <dyp@perchine.com>

	* frame.c (start_fde_sort): Don't malloc (0).

Index: frame.c
===================================================================
RCS file: /cvs/gcc/egcs/gcc/frame.c,v
retrieving revision 1.36
diff -c -3 -p -r1.36 frame.c
*** frame.c	2000/05/25 15:21:50	1.36
--- frame.c	2000/06/08 08:21:25
*************** typedef struct fde_accumulator
*** 59,65 ****
  static inline int
  start_fde_sort (fde_accumulator *accu, size_t count)
  {
!   accu->linear.array = (fde **) malloc (sizeof (fde *) * count);
    accu->erratic.array = accu->linear.array ?
        (fde **) malloc (sizeof (fde *) * count) : NULL;
    accu->linear.count = 0;
--- 59,65 ----
  static inline int
  start_fde_sort (fde_accumulator *accu, size_t count)
  {
!   accu->linear.array = count ? (fde **) malloc (sizeof (fde *) * count) : NULL;
    accu->erratic.array = accu->linear.array ?
        (fde **) malloc (sizeof (fde *) * count) : NULL;
    accu->linear.count = 0;
*************** end_fde_sort (fde_accumulator *accu, siz
*** 230,237 ****
  	abort ();
        frame_heapsort (&accu->erratic);
        fde_merge (&accu->linear, &accu->erratic);
!       if (accu->erratic.array)
!         free (accu->erratic.array);
      }
    else
      {
--- 230,236 ----
  	abort ();
        frame_heapsort (&accu->erratic);
        fde_merge (&accu->linear, &accu->erratic);
!       free (accu->erratic.array);
      }
    else
      {