[llvm] Use range-based for loops (NFC)

1 files changed, 4 insertions, 8 deletions

diff --git a/llvm/lib/CodeGen/MachineSink.cpp b/llvm/lib/CodeGen/MachineSink.cpp
index 30745c7..54c4786 100644
--- a/llvm/lib/CodeGen/MachineSink.cpp
+++ b/llvm/lib/CodeGen/MachineSink.cpp
@@ -596,8 +596,7 @@ bool MachineSinking::isWorthBreakingCriticalEdge(MachineInstr &MI,
   // MI is cheap, we probably don't want to break the critical edge for it.
   // However, if this would allow some definitions of its source operands
   // to be sunk then it's probably worth it.
-  for (unsigned i = 0, e = MI.getNumOperands(); i != e; ++i) {
-    const MachineOperand &MO = MI.getOperand(i);
+  for (const MachineOperand &MO : MI.operands()) {
     if (!MO.isReg() || !MO.isUse())
       continue;
     Register Reg = MO.getReg();
@@ -789,8 +788,7 @@ bool MachineSinking::isProfitableToSinkTo(Register Reg, MachineInstr &MI,
 
   // If this instruction is inside a loop and sinking this instruction can make
   // more registers live range shorten, it is still prifitable.
-  for (unsigned i = 0, e = MI.getNumOperands(); i != e; ++i) {
-    const MachineOperand &MO = MI.getOperand(i);
+  for (const MachineOperand &MO : MI.operands()) {
     // Ignore non-register operands.
     if (!MO.isReg())
       continue;
@@ -889,8 +887,7 @@ MachineSinking::FindSuccToSinkTo(MachineInstr &MI, MachineBasicBlock *MBB,
   // SuccToSinkTo - This is the successor to sink this instruction to, once we
   // decide.
   MachineBasicBlock *SuccToSinkTo = nullptr;
-  for (unsigned i = 0, e = MI.getNumOperands(); i != e; ++i) {
-    const MachineOperand &MO = MI.getOperand(i);
+  for (const MachineOperand &MO : MI.operands()) {
     if (!MO.isReg()) continue;  // Ignore non-register operands.
 
     Register Reg = MO.getReg();
@@ -1322,8 +1319,7 @@ bool MachineSinking::SinkInstruction(MachineInstr &MI, bool &SawStore,
   // If the instruction to move defines a dead physical register which is live
   // when leaving the basic block, don't move it because it could turn into a
   // "zombie" define of that preg. E.g., EFLAGS. (<rdar://problem/8030636>)
-  for (unsigned I = 0, E = MI.getNumOperands(); I != E; ++I) {
-    const MachineOperand &MO = MI.getOperand(I);
+  for (const MachineOperand &MO : MI.operands()) {
     if (!MO.isReg() || MO.isUse())
       continue;
     Register Reg = MO.getReg();