Use v.data() instead of &v[0] when SmallVector v might be empty.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72210 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 6 insertions, 6 deletions

diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index b316d45004..6692b6cd9f 100644
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -547,7 +547,7 @@ RValue CodeGenFunction::EmitBuiltinExpr(const FunctionDecl *FD,
       Args.push_back(ArgValue);
     }
     
-    Value *V = Builder.CreateCall(F, &Args[0], &Args[0] + Args.size());
+    Value *V = Builder.CreateCall(F, Args.data(), Args.data() + Args.size());
     QualType BuiltinRetType = E->getType();
     
     const llvm::Type *RetTy = llvm::Type::VoidTy;
diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp
index d444baec8e..718a51512a 100644
--- a/lib/CodeGen/CGCall.cpp
+++ b/lib/CodeGen/CGCall.cpp
@@ -2091,11 +2091,11 @@ RValue CodeGenFunction::EmitCall(const CGFunctionInfo &CallInfo,
   
   llvm::CallSite CS;
   if (!InvokeDest || (Attrs.getFnAttributes() & llvm::Attribute::NoUnwind)) {
-    CS = Builder.CreateCall(Callee, &Args[0], &Args[0]+Args.size());
+    CS = Builder.CreateCall(Callee, Args.data(), Args.data()+Args.size());
   } else {
     llvm::BasicBlock *Cont = createBasicBlock("invoke.cont");
     CS = Builder.CreateInvoke(Callee, Cont, InvokeDest, 
-                              &Args[0], &Args[0]+Args.size());
+                              Args.data(), Args.data()+Args.size());
     EmitBlock(Cont);
   }
 
diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index 382b186648..b005d0543e 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -609,7 +609,7 @@ llvm::DIType CGDebugInfo::CreateType(const ObjCInterfaceType *Ty,
   }
   
   llvm::DIArray Elements =
-    DebugFactory.GetOrCreateArray(&EltTys[0], EltTys.size());
+    DebugFactory.GetOrCreateArray(EltTys.data(), EltTys.size());
 
   // Bit size, align and offset of the type.
   uint64_t Size = M->getContext().getTypeSize(Ty);
@@ -645,7 +645,7 @@ llvm::DIType CGDebugInfo::CreateType(const EnumType *Ty,
   
   // Return a CompositeType for the enum itself.
   llvm::DIArray EltArray =
-    DebugFactory.GetOrCreateArray(&Enumerators[0], Enumerators.size());
+    DebugFactory.GetOrCreateArray(Enumerators.data(), Enumerators.size());
 
   std::string EnumName = Decl->getNameAsString();
   SourceLocation DefLoc = Decl->getLocation();
diff --git a/lib/CodeGen/CGStmt.cpp b/lib/CodeGen/CGStmt.cpp
index 7f73c8886c..da586b1d74 100644
--- a/lib/CodeGen/CGStmt.cpp
+++ b/lib/CodeGen/CGStmt.cpp
@@ -801,7 +801,7 @@ void CodeGenFunction::EmitAsmStmt(const AsmStmt &S) {
   for (unsigned i = 0, e = S.getNumInputs(); i != e; i++) {
     TargetInfo::ConstraintInfo Info(S.getInputConstraint(i),
                                     S.getInputName(i));
-    bool result = Target.validateInputConstraint(&OutputConstraintInfos[0],
+    bool result = Target.validateInputConstraint(OutputConstraintInfos.data(),
                                                  S.getNumOutputs(),
                                                  Info); result=result;
     assert(result && "Failed to parse input constraint");