llvm/unittests/ADT/PostOrderIteratorTest.cpp
Tim Shen 36b7d78473 [ADT] Change PostOrderIterator to use NodeRef. NFC.
Reviewers: dblaikie

Subscribers: mzolotukhin, llvm-commits

Differential Revision: https://reviews.llvm.org/D23522

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278752 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-15 21:52:54 +00:00

38 lines
1.2 KiB
C++

//===- PostOrderIteratorTest.cpp - PostOrderIterator unit tests -----------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "gtest/gtest.h"
#include "llvm/ADT/PostOrderIterator.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/CFG.h"
using namespace llvm;
namespace {
// Whether we're able to compile
TEST(PostOrderIteratorTest, Compiles) {
typedef SmallPtrSet<void *, 4> ExtSetTy;
// Tests that template specializations are kept up to date
void *Null = nullptr;
po_iterator_storage<std::set<void *>, false> PIS;
PIS.insertEdge(Optional<void *>(), Null);
ExtSetTy Ext;
po_iterator_storage<ExtSetTy, true> PISExt(Ext);
PIS.insertEdge(Optional<void *>(), Null);
// Test above, but going through po_iterator (which inherits from template
// base)
BasicBlock *NullBB = nullptr;
auto PI = po_end(NullBB);
PI.insertEdge(Optional<BasicBlock *>(), NullBB);
auto PIExt = po_ext_end(NullBB, Ext);
PIExt.insertEdge(Optional<BasicBlock *>(), NullBB);
}
}