llvm/unittests/Analysis/CallGraphTest.cpp
Tim Shen 22fca38c9c [GraphTraits] Replace all NodeType usage with NodeRef
This should finish the GraphTraits migration.

Differential Revision: http://reviews.llvm.org/D23730


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279475 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-22 21:09:30 +00:00

62 lines
1.9 KiB
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//=======- CallGraphTest.cpp - Unit tests for the CG analysis -------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Analysis/CallGraph.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
template <typename Ty> void canSpecializeGraphTraitsIterators(Ty *G) {
typedef typename GraphTraits<Ty *>::NodeRef NodeRef;
auto I = GraphTraits<Ty *>::nodes_begin(G);
auto E = GraphTraits<Ty *>::nodes_end(G);
auto X = ++I;
// Should be able to iterate over all nodes of the graph.
static_assert(std::is_same<decltype(*I), NodeRef>::value,
"Node type does not match");
static_assert(std::is_same<decltype(*X), NodeRef>::value,
"Node type does not match");
static_assert(std::is_same<decltype(*E), NodeRef>::value,
"Node type does not match");
NodeRef N = GraphTraits<Ty *>::getEntryNode(G);
auto S = GraphTraits<NodeRef>::child_begin(N);
auto F = GraphTraits<NodeRef>::child_end(N);
// Should be able to iterate over immediate successors of a node.
static_assert(std::is_same<decltype(*S), NodeRef>::value,
"Node type does not match");
static_assert(std::is_same<decltype(*F), NodeRef>::value,
"Node type does not match");
}
TEST(CallGraphTest, GraphTraitsSpecialization) {
LLVMContext Context;
Module M("", Context);
CallGraph CG(M);
canSpecializeGraphTraitsIterators(&CG);
}
TEST(CallGraphTest, GraphTraitsConstSpecialization) {
LLVMContext Context;
Module M("", Context);
CallGraph CG(M);
canSpecializeGraphTraitsIterators(const_cast<const CallGraph *>(&CG));
}
}