[C++11] Modernize the IR library a bit.

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203465 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 8 insertions, 11 deletions

diff --git a/include/llvm/IR/DataLayout.h b/include/llvm/IR/DataLayout.h
index d32b8402d6..8ad9bd0f4a 100644
--- a/include/llvm/IR/DataLayout.h
+++ b/include/llvm/IR/DataLayout.h
@@ -219,8 +219,8 @@ public:
   /// The width is specified in bits.
   ///
   bool isLegalInteger(unsigned Width) const {
-    for (unsigned i = 0, e = (unsigned)LegalIntWidths.size(); i != e; ++i)
-      if (LegalIntWidths[i] == Width)
+    for (unsigned LegalIntWidth : LegalIntWidths)
+      if (LegalIntWidth == Width)
         return true;
     return false;
   }
@@ -283,8 +283,8 @@ public:
   /// only supports i32 as a native integer type, then i27 fits in a legal
   // integer type but i45 does not.
   bool fitsInLegalInteger(unsigned Width) const {
-    for (unsigned i = 0, e = (unsigned)LegalIntWidths.size(); i != e; ++i)
-      if (Width <= LegalIntWidths[i])
+    for (unsigned LegalIntWidth : LegalIntWidths)
+      if (Width <= LegalIntWidth)
         return true;
     return false;
   }
diff --git a/include/llvm/IR/MDBuilder.h b/include/llvm/IR/MDBuilder.h
index ce81b5498f..c07b2bdc17 100644
--- a/include/llvm/IR/MDBuilder.h
+++ b/include/llvm/IR/MDBuilder.h
@@ -174,11 +174,8 @@ public:
   /// given name, an offset and a parent in the TBAA type DAG.
   MDNode *createTBAAScalarTypeNode(StringRef Name, MDNode *Parent,
                                    uint64_t Offset = 0) {
-    SmallVector<Value *, 4> Ops(3);
-    Type *Int64 = IntegerType::get(Context, 64);
-    Ops[0] = createString(Name);
-    Ops[1] = Parent;
-    Ops[2] = ConstantInt::get(Int64, Offset);
+    ConstantInt *Off = ConstantInt::get(Type::getInt64Ty(Context), Offset);
+    Value *Ops[3] = { createString(Name), Parent, Off };
     return MDNode::get(Context, Ops);
   }
 
diff --git a/include/llvm/IR/User.h b/include/llvm/IR/User.h
index d288e1908c..061bc91d31 100644
--- a/include/llvm/IR/User.h
+++ b/include/llvm/IR/User.h
@@ -178,8 +178,8 @@ public:
   // delete.
   //
   void dropAllReferences() {
-    for (op_iterator i = op_begin(), e = op_end(); i != e; ++i)
-      i->set(0);
+    for (Use &U : operands())
+      U.set(0);
   }
 
   /// replaceUsesOfWith - Replaces all references to the "From" definition with