/**
* Return true if this instruction is independent of the specified instruction. If instructions
* are independent, than one instruction can be moved before or after the other instruction
* without changing the semantics of the program.
*
* @param inst is the specified instruction
*/
public boolean independent(Instruction inst, RegisterSet registers) {
if (inst.defs(rs1, registers)) return false;
if (inst.uses(rd, registers)) return false;
if (!(inst instanceof SparcInstruction)) return true;
return independentCC((SparcInstruction) inst);
}
/**
* Return true if this instruction is independent of the specified instruction. If instructions
* are independent, than one instruction can be moved before or after the other instruction
* without changing the semantics of the program.
*
* @param inst is the specified instruction
*/
public boolean independent(Instruction inst, RegisterSet registers) {
if (inst.uses(ra, registers)) {
return false;
}
return !inst.defs(rb, registers);
}