| //===- PostOrderIteratorTest.cpp - PostOrderIterator unit tests -----------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| #include "llvm/ADT/PostOrderIterator.h" |
| #include "llvm/IR/BasicBlock.h" |
| #include "llvm/IR/CFG.h" |
| #include "gtest/gtest.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); |
| } |
| } |