can't bootstrap with -fssa

[Brad Lucier]

With

gcc version 2.96 20000320 (experimental)

on alphaev6-unknown-linux-gnu and BOOT_CFLAGS='-g -O2 -fssa', make
bootstrap LANGUAGES='c c++' bombs after stage1 with

./genopinit ../../gcc/config/alpha/alpha.md > tmp-opinit.c
make[2]: *** [s-opinit] Error 139

The debugger shows for genopinit:

(gdb) run alpha.md
Starting program: /.amd_mnt/peano/export/home3/lucier/genopinit alpha.md
/* Generated automatically by the program `genopinit'
from the machine description file `md'.  */

#include "config.h"
#include "system.h"
#include "rtl.h"
#include "flags.h"
#include "insn-flags.h"
#include "insn-codes.h"
#include "insn-config.h"
#include "recog.h"
#include "expr.h"
#include "reload.h"

void
init_all_optabs ()
{

Program received signal SIGSEGV, Segmentation fault.
0x120001470 in gen_insn (insn=0x12010d448) at ../../gcc/genopinit.c:263
263                 printf ("%smode", GET_MODE_NAME(m1));
(gdb) list 
258               case 'b':
259                 for (np = GET_MODE_NAME(m2); *np; np++)
260                   putchar (TOLOWER (*np));
261                 break;
262               case 'A':
263                 printf ("%smode", GET_MODE_NAME(m1));
264                 break;
265               case 'B':
266                 printf ("%smode", GET_MODE_NAME(m2));
267                 break;
(gdb) where
#0  0x120001470 in gen_insn (insn=0x12010d448) at ../../gcc/genopinit.c:263
#1  0x1200018c4 in main (argc=537967600, argv=0xffffffffffffffff)
    at ../../gcc/genopinit.c:360
#2  0x2000014ffb0 in __libc_start_main (main=0x1200016c0 <main>, argc=2, 
    argv=0x11ffff9c8, init=0x120000ce0 <_init>, fini=0x120006440 <_fini>, 
    rtld_fini=0x12000754f <optabs+4271>, stack_end=0x11ffff9b0)
    at ../sysdeps/generic/libc-start.c:78
(gdb) info locals
name = 0x12010d470 "extendsidi2"
(gdb) info args
insn = 0x12010d448

I'm sorry, but I can't figure out what's going on.

Brad Lucier