From 6d73b8016ebbea956fd19a7e28a668b9195a192c Mon Sep 17 00:00:00 2001
From: David Blaikie <dblaikie@gmail.com>
Date: Mon, 21 Apr 2014 23:47:47 +0000
Subject: Use unique_ptr to handle ownership of Value*s in Cloning unit tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206828 91177308-0d34-0410-b5e6-96231b3b80d8
---
 unittests/Transforms/Utils/Cloning.cpp | 44 +++++++++++++++++++---------------
 1 file changed, 25 insertions(+), 19 deletions(-)

(limited to 'unittests')

diff --git a/unittests/Transforms/Utils/Cloning.cpp b/unittests/Transforms/Utils/Cloning.cpp
index fb27dc1735..6f8cf95fb5 100644
--- a/unittests/Transforms/Utils/Cloning.cpp
+++ b/unittests/Transforms/Utils/Cloning.cpp
@@ -10,7 +10,6 @@
 #include "llvm/Transforms/Utils/Cloning.h"
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/IR/Argument.h"
 #include "llvm/IR/Constant.h"
 #include "llvm/IR/DebugInfo.h"
@@ -25,6 +24,8 @@
 #include "llvm/IR/LLVMContext.h"
 #include "gtest/gtest.h"
 
+#include <set>
+
 using namespace llvm;
 
 namespace {
@@ -38,34 +39,38 @@ protected:
   template <typename T>
   T *clone(T *V1) {
     Value *V2 = V1->clone();
-    Orig.insert(V1);
-    Clones.insert(V2);
+    std::unique_ptr<Value> V(V1);
+    if (!Orig.insert(std::move(V)).second)
+      V.release(); // this wasn't the first time we added the element, so the
+                   // set already had ownership
+    Clones.insert(std::unique_ptr<Value>(V2));
     return cast<T>(V2);
   }
 
-  void eraseClones() {
-    DeleteContainerPointers(Clones);
-  }
+  void eraseClones() { Clones.clear(); }
 
   virtual void TearDown() {
     eraseClones();
-    DeleteContainerPointers(Orig);
-    delete V;
+    Orig.clear();
+    V.reset();
   }
 
-  SmallPtrSet<Value *, 4> Orig;   // Erase on exit
-  SmallPtrSet<Value *, 4> Clones; // Erase in eraseClones
+  std::set<std::unique_ptr<Value>> Orig;   // Erase on exit
+  std::set<std::unique_ptr<Value>> Clones; // Erase in eraseClones
 
   LLVMContext context;
-  Value *V;
+  std::unique_ptr<Value> V;
 };
 
 TEST_F(CloneInstruction, OverflowBits) {
-  V = new Argument(Type::getInt32Ty(context));
+  V = make_unique<Argument>(Type::getInt32Ty(context));
 
-  BinaryOperator *Add = BinaryOperator::Create(Instruction::Add, V, V);
-  BinaryOperator *Sub = BinaryOperator::Create(Instruction::Sub, V, V);
-  BinaryOperator *Mul = BinaryOperator::Create(Instruction::Mul, V, V);
+  BinaryOperator *Add =
+      BinaryOperator::Create(Instruction::Add, V.get(), V.get());
+  BinaryOperator *Sub =
+      BinaryOperator::Create(Instruction::Sub, V.get(), V.get());
+  BinaryOperator *Mul =
+      BinaryOperator::Create(Instruction::Mul, V.get(), V.get());
 
   BinaryOperator *AddClone = this->clone(Add);
   BinaryOperator *SubClone = this->clone(Sub);
@@ -131,12 +136,12 @@ TEST_F(CloneInstruction, OverflowBits) {
 }
 
 TEST_F(CloneInstruction, Inbounds) {
-  V = new Argument(Type::getInt32PtrTy(context));
+  V = make_unique<Argument>(Type::getInt32PtrTy(context));
 
   Constant *Z = Constant::getNullValue(Type::getInt32Ty(context));
   std::vector<Value *> ops;
   ops.push_back(Z);
-  GetElementPtrInst *GEP = GetElementPtrInst::Create(V, ops);
+  GetElementPtrInst *GEP = GetElementPtrInst::Create(V.get(), ops);
   EXPECT_FALSE(this->clone(GEP)->isInBounds());
 
   GEP->setIsInBounds();
@@ -144,9 +149,10 @@ TEST_F(CloneInstruction, Inbounds) {
 }
 
 TEST_F(CloneInstruction, Exact) {
-  V = new Argument(Type::getInt32Ty(context));
+  V = make_unique<Argument>(Type::getInt32Ty(context));
 
-  BinaryOperator *SDiv = BinaryOperator::Create(Instruction::SDiv, V, V);
+  BinaryOperator *SDiv =
+      BinaryOperator::Create(Instruction::SDiv, V.get(), V.get());
   EXPECT_FALSE(this->clone(SDiv)->isExact());
 
   SDiv->setIsExact(true);
-- 
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