5 files changed, 10 insertions, 7 deletions
diff --git a/llvm/lib/Analysis/LazyCallGraph.cpp b/llvm/lib/Analysis/LazyCallGraph.cpp
index c001f55bb62..b1d585bfc68 100644
--- a/llvm/lib/Analysis/LazyCallGraph.cpp
+++ b/llvm/lib/Analysis/LazyCallGraph.cpp
@@ -1273,7 +1273,7 @@ LazyCallGraph::RefSCC::removeInternalRefEdge(Node &SourceN,
       // the removal hasn't changed the structure at all. This is an important
       // special case and we can directly exit the entire routine more
       // efficiently as soon as we discover it.
-      if (distance(RefSCCNodes) == NumRefSCCNodes) {
+      if (llvm::size(RefSCCNodes) == NumRefSCCNodes) {
         // Clear out the low link field as we won't need it.
         for (Node *N : RefSCCNodes)
           N->LowLink = -1;
@@ -1739,7 +1739,7 @@ static void printNode(raw_ostream &OS, LazyCallGraph::Node &N) {
 }
 
 static void printSCC(raw_ostream &OS, LazyCallGraph::SCC &C) {
-  ptrdiff_t Size = distance(C);
+  ptrdiff_t Size = size(C);
   OS << "    SCC with " << Size << " functions:\n";
 
   for (LazyCallGraph::Node &N : C)
@@ -1747,7 +1747,7 @@ static void printSCC(raw_ostream &OS, LazyCallGraph::SCC &C) {
 }
 
 static void printRefSCC(raw_ostream &OS, LazyCallGraph::RefSCC &C) {
-  ptrdiff_t Size = distance(C);
+  ptrdiff_t Size = size(C);
   OS << "  RefSCC with " << Size << " call SCCs:\n";
 
   for (LazyCallGraph::SCC &InnerC : C)
diff --git a/llvm/lib/CodeGen/ImplicitNullChecks.cpp b/llvm/lib/CodeGen/ImplicitNullChecks.cpp
index 285f746875e..98c3039863e 100644
--- a/llvm/lib/CodeGen/ImplicitNullChecks.cpp
+++ b/llvm/lib/CodeGen/ImplicitNullChecks.cpp
@@ -597,7 +597,7 @@ MachineInstr *ImplicitNullChecks::insertFaultingInstr(
   unsigned DefReg = NoRegister;
   if (NumDefs != 0) {
     DefReg = MI->defs().begin()->getReg();
-    assert(distance(MI->defs()) == 1 && "expected exactly one def!");
+    assert(NumDefs == 1 && "expected exactly one def!");
   }
 
   FaultMaps::FaultKind FK;
diff --git a/llvm/lib/IR/Value.cpp b/llvm/lib/IR/Value.cpp
index bdcc657abe6..2f95e9348b4 100644
--- a/llvm/lib/IR/Value.cpp
+++ b/llvm/lib/IR/Value.cpp
@@ -167,7 +167,9 @@ bool Value::isUsedInBasicBlock(const BasicBlock *BB) const {
   return false;
 }
 
-unsigned Value::getNumUses() const { return (unsigned)distance(uses()); }
+unsigned Value::getNumUses() const {
+  return (unsigned)std::distance(use_begin(), use_end());
+}
 
 static bool getSymTab(Value *V, ValueSymbolTable *&ST) {
   ST = nullptr;
diff --git a/llvm/lib/Transforms/Scalar/GVNHoist.cpp b/llvm/lib/Transforms/Scalar/GVNHoist.cpp
index 6994d964a9e..c35f0fdf683 100644
--- a/llvm/lib/Transforms/Scalar/GVNHoist.cpp
+++ b/llvm/lib/Transforms/Scalar/GVNHoist.cpp
@@ -578,7 +578,7 @@ private:
 
   // Returns true when the values are flowing out to each edge.
   bool valueAnticipable(CHIArgs C, TerminatorInst *TI) const {
-    if (TI->getNumSuccessors() > (unsigned)distance(C))
+    if (TI->getNumSuccessors() > (unsigned)size(C))
       return false; // Not enough args in this CHI.
 
     for (auto CHI : C) {
diff --git a/llvm/lib/Transforms/Scalar/MergedLoadStoreMotion.cpp b/llvm/lib/Transforms/Scalar/MergedLoadStoreMotion.cpp
index 72ab175deca..3464b759280 100644
--- a/llvm/lib/Transforms/Scalar/MergedLoadStoreMotion.cpp
+++ b/llvm/lib/Transforms/Scalar/MergedLoadStoreMotion.cpp
@@ -285,7 +285,8 @@ bool MergedLoadStoreMotion::mergeStores(BasicBlock *T) {
     return false; // No. More than 2 predecessors.
 
   // #Instructions in Succ1 for Compile Time Control
-  int Size1 = distance(Pred1->instructionsWithoutDebug());
+  auto InstsNoDbg = Pred1->instructionsWithoutDebug();
+  int Size1 = std::distance(InstsNoDbg.begin(), InstsNoDbg.end());
   int NStores = 0;
 
   for (BasicBlock::reverse_iterator RBI = Pred0->rbegin(), RBE = Pred0->rend();