regression in simd-4.c on darwin6.1

[Andreas Tobler <toa at pop dot agri dot ch>]

Introduced last night.

Thanks,
Andreas

/Volumes/xufs/gccsrc/gcc/gcc/testsuite/gcc.c-torture/compile/simd-4.c: 
In functi
on `tempf':^M
/Volumes/xufs/gccsrc/gcc/gcc/testsuite/gcc.c-torture/compile/simd-4.c:15: 
error:
 unable to find a register to spill in class `FLOAT_REGS'^M
/Volumes/xufs/gccsrc/gcc/gcc/testsuite/gcc.c-torture/compile/simd-4.c:15: 
error:
 this is the insn:^M
(insn:HI 120 97 129 0 0xdee330 (set (subreg:SF (reg:V4SF 5 r5 [130]) 12)^M
        (plus:SF (subreg:SF (reg:SI 13 r13 [124]) 0)^M
            (subreg:SF (reg:SI 66 ctr [129]) 0))) 169 {*rs6000.md:5157} 
(insn_li
st:REG_DEP_OUTPUT 97 (insn_list 26 (insn_list 16 (nil))))^M
    (expr_list:REG_DEAD (reg:SI 13 r13 [124])^M
        (expr_list:REG_DEAD (reg:SI 66 ctr [129])^M
            (nil))))^M
/Volumes/xufs/gccsrc/gcc/gcc/testsuite/gcc.c-torture/compile/simd-4.c:15: 
intern
al compiler error: in spill_failure, at reload1.c:1916^M
Please submit a full bug report,^M
with preprocessed source if appropriate.^M
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.^M

FAIL: gcc.c-torture/compile/simd-4.c,  -Os