Re: GCC 4.0 Status Report (2005-04-05)

[Andrew Pinski <pinskia at physics dot uc dot edu>]

On Apr 4, 2005, at 8:09 PM, Giovanni Bajo wrote:

> Mark Mitchell <mark@codesourcery.com> wrote:
>
> > > I've attached a revised summary of the critical bugs open against
> > > 4.0. The good news is that there are fewer than last week.
>
> Earlier today, Andrew Haley posted a small C++ snippet showing an ABI 
> change
> affecting gcj on PPC32:
> http://gcc.gnu.org/ml/gcc/2005-04/msg00139.html
>
> I hope he'll open a PR soon, but you probably want to consider this 
> for 4.0.

Note it also effects all targets too by shown by my testcase.
Also I think it was caused by:
2004-06-21  Mark Mitchell  <mark@codesourcery.com>

	* cp-tree.def (NEW_EXPR): Add a fourth slot.
	* cp-tree.h (PARMLIST_ELLIPSIS_P): Remove.
	(TREE_PARMLIST): Likewise.
	....

It also shows that the C and C++ ABIs for the struct I had in the 
testcase
no longer matches so it is even worse than just gcj.

Testcase:
#include <stdio.h>
typedef struct Parent
{
  long long m;
  int *scratch;
  void * __attribute__((aligned(8))) this$0;
}Parent;
int main (int argc, char **argv)
{
  printf ("%d\n", sizeof(Parent));
  return 0;
}

Thanks,
Andrew Pinski