[mips] Use range-based for loops. NFC

llvm-svn: 360817

Author: atanasyan

llvm/lib/Target/Mips/MipsDelaySlotFiller.cpp

@@ -492,14 +492,12 @@ MemDefsUses::MemDefsUses(const DataLayout &DL, const MachineFrameInfo *MFI_)
 
 bool MemDefsUses::hasHazard_(const MachineInstr &MI) {
   bool HasHazard = false;
-  SmallVector<ValueType, 4> Objs;
 
   // Check underlying object list.
+  SmallVector<ValueType, 4> Objs;
   if (getUnderlyingObjects(MI, Objs)) {
-    for (SmallVectorImpl<ValueType>::const_iterator I = Objs.begin();
-         I != Objs.end(); ++I)
-      HasHazard |= updateDefsUses(*I, MI.mayStore());
-
+    for (ValueType VT : Objs)
+      HasHazard |= updateDefsUses(VT, MI.mayStore());
     return HasHazard;
   }
 
@@ -525,33 +523,32 @@ bool MemDefsUses::updateDefsUses(ValueType V, bool MayStore) {
 bool MemDefsUses::
 getUnderlyingObjects(const MachineInstr &MI,
                      SmallVectorImpl<ValueType> &Objects) const {
-  if (!MI.hasOneMemOperand() ||
-      (!(*MI.memoperands_begin())->getValue() &&
-       !(*MI.memoperands_begin())->getPseudoValue()))
+  if (!MI.hasOneMemOperand())
     return false;
 
-  if (const PseudoSourceValue *PSV =
-      (*MI.memoperands_begin())->getPseudoValue()) {
+  auto & MMO = **MI.memoperands_begin();
+
+  if (const PseudoSourceValue *PSV = MMO.getPseudoValue()) {
     if (!PSV->isAliased(MFI))
       return false;
     Objects.push_back(PSV);
     return true;
   }
 
-  const Value *V = (*MI.memoperands_begin())->getValue();
+  if (const Value *V = MMO.getValue()) {
+    SmallVector<const Value *, 4> Objs;
+    GetUnderlyingObjects(V, Objs, DL);
 
-  SmallVector<const Value *, 4> Objs;
-  GetUnderlyingObjects(V, Objs, DL);
+    for (const Value *UValue : Objs) {
+      if (!isIdentifiedObject(V))
+        return false;
 
-  for (SmallVectorImpl<const Value *>::iterator I = Objs.begin(), E = Objs.end();
-       I != E; ++I) {
-    if (!isIdentifiedObject(V))
-      return false;
-
-    Objects.push_back(*I);
+      Objects.push_back(UValue);
+    }
+    return true;
   }
 
-  return true;
+  return false;
 }
 
 // Replace Branch with the compact branch instruction.