Revert "Turn some C-style vararg into variadic templates"

This reverts commit r299699, the examples needs to be updated.

llvm-svn: 299702
diff --git a/llvm/lib/CodeGen/CountingFunctionInserter.cpp b/llvm/lib/CodeGen/CountingFunctionInserter.cpp
index 8182d43..1e46a7a 100644
--- a/llvm/lib/CodeGen/CountingFunctionInserter.cpp
+++ b/llvm/lib/CodeGen/CountingFunctionInserter.cpp
@@ -40,7 +40,8 @@
 
       Type *VoidTy = Type::getVoidTy(F.getContext());
       Constant *CountingFn =
-          F.getParent()->getOrInsertFunction(CountingFunctionName, VoidTy);
+        F.getParent()->getOrInsertFunction(CountingFunctionName,
+                                           VoidTy, nullptr);
       CallInst::Create(CountingFn, "", &*F.begin()->getFirstInsertionPt());
       return true;
     }
diff --git a/llvm/lib/CodeGen/IntrinsicLowering.cpp b/llvm/lib/CodeGen/IntrinsicLowering.cpp
index 5090005..afd2406 100644
--- a/llvm/lib/CodeGen/IntrinsicLowering.cpp
+++ b/llvm/lib/CodeGen/IntrinsicLowering.cpp
@@ -111,19 +111,25 @@
                              Type::getVoidTy(M.getContext()));
         break;
       case Intrinsic::memcpy:
-        M.getOrInsertFunction(
-            "memcpy", Type::getInt8PtrTy(Context), Type::getInt8PtrTy(Context),
-            Type::getInt8PtrTy(Context), DL.getIntPtrType(Context));
+        M.getOrInsertFunction("memcpy",
+          Type::getInt8PtrTy(Context),
+                              Type::getInt8PtrTy(Context), 
+                              Type::getInt8PtrTy(Context), 
+                              DL.getIntPtrType(Context), nullptr);
         break;
       case Intrinsic::memmove:
-        M.getOrInsertFunction(
-            "memmove", Type::getInt8PtrTy(Context), Type::getInt8PtrTy(Context),
-            Type::getInt8PtrTy(Context), DL.getIntPtrType(Context));
+        M.getOrInsertFunction("memmove",
+          Type::getInt8PtrTy(Context),
+                              Type::getInt8PtrTy(Context), 
+                              Type::getInt8PtrTy(Context), 
+                              DL.getIntPtrType(Context), nullptr);
         break;
       case Intrinsic::memset:
-        M.getOrInsertFunction(
-            "memset", Type::getInt8PtrTy(Context), Type::getInt8PtrTy(Context),
-            Type::getInt32Ty(M.getContext()), DL.getIntPtrType(Context));
+        M.getOrInsertFunction("memset",
+          Type::getInt8PtrTy(Context),
+                              Type::getInt8PtrTy(Context), 
+                              Type::getInt32Ty(M.getContext()), 
+                              DL.getIntPtrType(Context), nullptr);
         break;
       case Intrinsic::sqrt:
         EnsureFPIntrinsicsExist(M, F, "sqrtf", "sqrt", "sqrtl");
diff --git a/llvm/lib/CodeGen/MachineOutliner.cpp b/llvm/lib/CodeGen/MachineOutliner.cpp
index 581a8ad..2f54630 100644
--- a/llvm/lib/CodeGen/MachineOutliner.cpp
+++ b/llvm/lib/CodeGen/MachineOutliner.cpp
@@ -1098,7 +1098,7 @@
   // Create the function using an IR-level function.
   LLVMContext &C = M.getContext();
   Function *F = dyn_cast<Function>(
-      M.getOrInsertFunction(NameStream.str(), Type::getVoidTy(C)));
+      M.getOrInsertFunction(NameStream.str(), Type::getVoidTy(C), nullptr));
   assert(F && "Function was null!");
 
   // NOTE: If this is linkonceodr, then we can take advantage of linker deduping
diff --git a/llvm/lib/CodeGen/SafeStack.cpp b/llvm/lib/CodeGen/SafeStack.cpp
index e6981e8..2b82df2 100644
--- a/llvm/lib/CodeGen/SafeStack.cpp
+++ b/llvm/lib/CodeGen/SafeStack.cpp
@@ -450,8 +450,8 @@
                                 /* Unreachable */ true, Weights);
   IRBuilder<> IRBFail(CheckTerm);
   // FIXME: respect -fsanitize-trap / -ftrap-function here?
-  Constant *StackChkFail =
-      F.getParent()->getOrInsertFunction("__stack_chk_fail", IRB.getVoidTy());
+  Constant *StackChkFail = F.getParent()->getOrInsertFunction(
+      "__stack_chk_fail", IRB.getVoidTy(), nullptr);
   IRBFail.CreateCall(StackChkFail, {});
 }
 
diff --git a/llvm/lib/CodeGen/SjLjEHPrepare.cpp b/llvm/lib/CodeGen/SjLjEHPrepare.cpp
index bf6fdff..76e4dc5 100644
--- a/llvm/lib/CodeGen/SjLjEHPrepare.cpp
+++ b/llvm/lib/CodeGen/SjLjEHPrepare.cpp
@@ -480,12 +480,12 @@
 
 bool SjLjEHPrepare::runOnFunction(Function &F) {
   Module &M = *F.getParent();
-  RegisterFn = M.getOrInsertFunction("_Unwind_SjLj_Register",
-                                     Type::getVoidTy(M.getContext()),
-                                     PointerType::getUnqual(FunctionContextTy));
+  RegisterFn = M.getOrInsertFunction(
+      "_Unwind_SjLj_Register", Type::getVoidTy(M.getContext()),
+      PointerType::getUnqual(FunctionContextTy), nullptr);
   UnregisterFn = M.getOrInsertFunction(
       "_Unwind_SjLj_Unregister", Type::getVoidTy(M.getContext()),
-      PointerType::getUnqual(FunctionContextTy));
+      PointerType::getUnqual(FunctionContextTy), nullptr);
   FrameAddrFn = Intrinsic::getDeclaration(&M, Intrinsic::frameaddress);
   StackAddrFn = Intrinsic::getDeclaration(&M, Intrinsic::stacksave);
   StackRestoreFn = Intrinsic::getDeclaration(&M, Intrinsic::stackrestore);
diff --git a/llvm/lib/CodeGen/StackProtector.cpp b/llvm/lib/CodeGen/StackProtector.cpp
index 7230b01..e3fdb96 100644
--- a/llvm/lib/CodeGen/StackProtector.cpp
+++ b/llvm/lib/CodeGen/StackProtector.cpp
@@ -481,15 +481,16 @@
   IRBuilder<> B(FailBB);
   B.SetCurrentDebugLocation(DebugLoc::get(0, 0, F->getSubprogram()));
   if (Trip.isOSOpenBSD()) {
-    Constant *StackChkFail = M->getOrInsertFunction(
-        "__stack_smash_handler", Type::getVoidTy(Context),
-        Type::getInt8PtrTy(Context));
+    Constant *StackChkFail =
+        M->getOrInsertFunction("__stack_smash_handler",
+                               Type::getVoidTy(Context),
+                               Type::getInt8PtrTy(Context), nullptr);
 
     B.CreateCall(StackChkFail, B.CreateGlobalStringPtr(F->getName(), "SSH"));
   } else {
     Constant *StackChkFail =
-        M->getOrInsertFunction("__stack_chk_fail", Type::getVoidTy(Context));
-
+        M->getOrInsertFunction("__stack_chk_fail", Type::getVoidTy(Context),
+                               nullptr);
     B.CreateCall(StackChkFail, {});
   }
   B.CreateUnreachable();
diff --git a/llvm/lib/CodeGen/TargetLoweringBase.cpp b/llvm/lib/CodeGen/TargetLoweringBase.cpp
index 27630a3..fc14763 100644
--- a/llvm/lib/CodeGen/TargetLoweringBase.cpp
+++ b/llvm/lib/CodeGen/TargetLoweringBase.cpp
@@ -1818,7 +1818,7 @@
   Module *M = IRB.GetInsertBlock()->getParent()->getParent();
   Type *StackPtrTy = Type::getInt8PtrTy(M->getContext());
   Value *Fn = M->getOrInsertFunction("__safestack_pointer_address",
-                                     StackPtrTy->getPointerTo(0));
+                                     StackPtrTy->getPointerTo(0), nullptr);
   return IRB.CreateCall(Fn);
 }