Function outputs_to_zero

LiveRecomp/live_generator.cpp:386–397

}

bool outputs_to_zero(N64Recomp::Operand output, const N64Recomp::InstructionContext& ctx) {
    if (output == N64Recomp::Operand::Rd && ctx.rd == 0) {
        return true;
    }
    if (output == N64Recomp::Operand::Rt && ctx.rt == 0) {
        return true;
    }
    if (output == N64Recomp::Operand::Rs && ctx.rs == 0) {
        return true;
    }
    return false;
}

void N64Recomp::LiveGenerator::process_binary_op(const BinaryOp& op, const InstructionContext& ctx) const {
    // Skip instructions that output to $zero