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~