the best way to convert a code in assembly to a high end code, like C

Question

I\'m trying to convert the follow code to C

01 addi $sp, $sp, -12
02 sw $t0, 0($sp)
03 sw $t1, 4($sp)
04 sw $t2, 8($sp)
05 add $v0, $zero, $zero
06 sll $t0, $