en,i still have a problem,
the MAX_INSNS_PER_PEEP2 is 3,
when the program case is :
mul.d $f1, $f1, $f0
add.d $f2, $f2, $f1
sub.d $f3, $f3, $f2
sdc1 $f3, 0(v0)
addiu v0, v0, 1
add.d $f3, $f4, $f2
sdc1
> On Fri, May 13, 2005 at 11:37:16PM +0800, zouq wrote:
>> original program is:
>> mul.d $f1, $f1, $f0
>> add.d $f2, $f2, $f1
>> div.d $f3, $f0, $f1;
>>
>> after i compile used my changed gcc, it becomes:
>> madd.d $f2, $f1, $0
>> div.d $f3, $f0, $f1
>>
>> as you can see, the value of $f1 is wrong!!
>
> Check
>
> (rtx_equal_p (operands[3], operands[0])
> || peep2_reg_dead_p (2, operands[0]))
>
>
> r~
>
