// Temporary flag to disable rescheduling.
static cl::opt<bool>
EnableRescheduling("twoaddr-reschedule",
- cl::desc("Coalesce copies by rescheduling (default=true)"), cl::init(true), cl::Hidden);
+ cl::desc("Coalesce copies by rescheduling (default=true)"),
+ cl::init(true), cl::Hidden);
namespace {
class TwoAddressInstructionPass : public MachineFunctionPass {
/// isTwoAddrUse - Return true if the specified MI uses the specified register
/// as a two-address use. If so, return the destination register by reference.
static bool isTwoAddrUse(MachineInstr &MI, unsigned Reg, unsigned &DstReg) {
- const MCInstrDesc &MCID = MI.getDesc();
- unsigned NumOps = MI.isInlineAsm()
- ? MI.getNumOperands() : MCID.getNumOperands();
- for (unsigned i = 0; i != NumOps; ++i) {
+ for (unsigned i = 0, NumOps = MI.getNumOperands(); i != NumOps; ++i) {
const MachineOperand &MO = MI.getOperand(i);
if (!MO.isReg() || !MO.isUse() || MO.getReg() != Reg)
continue;
// transformations that may either eliminate the tied operands or
// improve the opportunities for coalescing away the register copy.
if (TiedOperands.size() == 1) {
- SmallVector<std::pair<unsigned, unsigned>, 4> &TiedPairs
+ SmallVectorImpl<std::pair<unsigned, unsigned> > &TiedPairs
= TiedOperands.begin()->second;
if (TiedPairs.size() == 1) {
unsigned SrcIdx = TiedPairs[0].first;