I tried to do a profiledbootstrap for sparc64-sun-solaris2.9 but ran into an
internal compiler error for reorg.c. I then profilebootstraped gcc 4.0.1 for
sparc-sun-solaris2.9 without error. But again I get an internal compiler error
for the file r.c below that I build by stripping down reorg.c:

For the command line

  gcc -v -c -O -m64 -fprofile-generate r.c -o r.o

the corresponding output is:
--- snip ---
Using built-in specs.
Target: sparc-sun-solaris2.9
Configured with: /home/menzel/src/4.0-32/gcc-4.0.1/configure
--prefix=/home/menzel/sw5.9-gcc4.0
Thread model: posix
gcc version 4.0.1
 /home/menzel/sw5.9-gcc4.0/libexec/gcc/sparc-sun-solaris2.9/4.0.1/cc1 -quiet -v
-D__arch64__ -D__sparcv9 r.c -mptr64 -mstack-bias -mno-v8plus -mcpu=v9 -quiet
-dumpbase r.c -m64 -auxbase-strip r.o -O -version -fprofile-generate -o
/tmp/ccPJ8PTb.s
ignoring nonexistent directory "/usr/local/include"
ignoring nonexistent directory
"/home/menzel/sw5.9-gcc4.0/lib/gcc/sparc-sun-solaris2.9/4.0.1/../../../../sparc-sun-solaris2.9/include"
#include "..." search starts here:
#include <...> search starts here:
 /home/menzel/sw5.9-gcc4.0/include
 /home/menzel/sw5.9-gcc4.0/lib/gcc/sparc-sun-solaris2.9/4.0.1/include
 /usr/include
End of search list.
GNU C version 4.0.1 (sparc-sun-solaris2.9)
        compiled by GNU C version 4.0.1.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
r.c: In function 'check_annul_list_true_false':
r.c:27: internal compiler error: in int_mode_for_mode, at stor-layout.c:251
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
--- snip ---

The file r.c:
--- snip ---
union rtunion_def
{
  struct rtx_def *rt_rtx;
};
typedef union rtunion_def rtunion;

struct rtx_def
{
  unsigned int in_struct : 1;
  union u {
    rtunion fld[1];
  } u;
};
typedef struct rtx_def *rtx;

static void
check_annul_list_true_false (int annul_true_p, rtx delay_list)
{
  rtx temp;
  while (1)
    {
      temp = delay_list;
      rtx trial = (((temp)->u.fld[0]).rt_rtx);
      if ((annul_true_p && (((trial))->in_struct)))
	return;
    }
}
--- snip ---

Bye,
Ralf