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llvm-mirror/unittests/tools/llvm-cfi-verify/GraphBuilder.cpp

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//===- llvm/unittests/llvm-cfi-verify/GraphBuilder.cpp --------------===//
//
// 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 "../tools/llvm-cfi-verify/lib/GraphBuilder.h"
#include "../tools/llvm-cfi-verify/lib/FileAnalysis.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "llvm/BinaryFormat/ELF.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCDisassembler/MCDisassembler.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCInstPrinter.h"
#include "llvm/MC/MCInstrAnalysis.h"
#include "llvm/MC/MCInstrDesc.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/Object/Binary.h"
#include "llvm/Object/COFF.h"
#include "llvm/Object/ELFObjectFile.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Support/raw_ostream.h"
#include <cstdlib>
#include <sstream>
using Instr = ::llvm::cfi_verify::FileAnalysis::Instr;
using ::testing::AllOf;
using ::testing::Each;
using ::testing::ElementsAre;
using ::testing::Eq;
using ::testing::Field;
using ::testing::IsEmpty;
using ::testing::Matches;
using ::testing::Pair;
using ::testing::PrintToString;
using ::testing::Property;
using ::testing::SizeIs;
using ::testing::UnorderedElementsAre;
using ::testing::Value;
namespace llvm {
namespace cfi_verify {
// Printing helpers for gtest.
std::string HexStringifyContainer(const std::vector<uint64_t> &C) {
std::stringstream Stream;
if (C.empty()) {
return "{ }";
}
Stream << "{ ";
const auto &LastElemIt = std::end(C) - 1;
for (auto It = std::begin(C); It != LastElemIt; ++It) {
Stream << "0x" << std::hex << *It << ", ";
}
Stream << "0x" << std::hex << *LastElemIt << " }";
return Stream.str();
}
void PrintTo(const ConditionalBranchNode &BranchNode, ::std::ostream *os) {
*os << "ConditionalBranchNode<Address: 0x" << std::hex << BranchNode.Address
<< ", Target: 0x" << BranchNode.Target << ", Fallthrough: 0x"
<< BranchNode.Fallthrough
<< ", CFIProtection: " << BranchNode.CFIProtection << ">";
}
void PrintTo(const GraphResult &Result, ::std::ostream *os) {
*os << "Result BaseAddress: 0x" << std::hex << Result.BaseAddress << "\n";
if (Result.ConditionalBranchNodes.empty())
*os << " (No conditional branch nodes)\n";
for (const auto &Node : Result.ConditionalBranchNodes) {
*os << " ";
PrintTo(Node, os);
*os << "\n Fallthrough Path: " << std::hex
<< HexStringifyContainer(Result.flattenAddress(Node.Fallthrough))
<< "\n";
*os << " Target Path: " << std::hex
<< HexStringifyContainer(Result.flattenAddress(Node.Target)) << "\n";
}
if (Result.OrphanedNodes.empty())
*os << " (No orphaned nodes)";
for (const auto &Orphan : Result.OrphanedNodes) {
*os << " Orphan (0x" << std::hex << Orphan
<< ") Path: " << HexStringifyContainer(Result.flattenAddress(Orphan))
<< "\n";
}
}
namespace {
class ELFx86TestFileAnalysis : public FileAnalysis {
public:
ELFx86TestFileAnalysis()
: FileAnalysis(Triple("x86_64--"), SubtargetFeatures()) {}
// Expose this method publicly for testing.
void parseSectionContents(ArrayRef<uint8_t> SectionBytes,
object::SectionedAddress Address) {
FileAnalysis::parseSectionContents(SectionBytes, Address);
}
Error initialiseDisassemblyMembers() {
return FileAnalysis::initialiseDisassemblyMembers();
}
};
class BasicGraphBuilderTest : public ::testing::Test {
protected:
void SetUp() override {
IgnoreDWARFFlag = true;
SuccessfullyInitialised = true;
if (auto Err = Analysis.initialiseDisassemblyMembers()) {
handleAllErrors(std::move(Err), [&](const UnsupportedDisassembly &E) {
SuccessfullyInitialised = false;
outs()
<< "Note: CFIVerifyTests are disabled due to lack of x86 support "
"on this build.\n";
});
}
}
bool SuccessfullyInitialised;
ELFx86TestFileAnalysis Analysis;
};
MATCHER_P2(HasPath, Result, Matcher, "has path " + PrintToString(Matcher)) {
const auto &Path = Result.flattenAddress(arg);
*result_listener << "the path is " << PrintToString(Path);
return Matches(Matcher)(Path);
}
TEST_F(BasicGraphBuilderTest, BuildFlowGraphTestSinglePathFallthroughUd2) {
if (!SuccessfullyInitialised)
return;
Analysis.parseSectionContents(
{
0x75, 0x02, // 0: jne 4 [+2]
0x0f, 0x0b, // 2: ud2
0xff, 0x10, // 4: callq *(%rax)
},
{0xDEADBEEF, 0x0});
const auto Result =
GraphBuilder::buildFlowGraph(Analysis, {0xDEADBEEF + 4, 0x0});
EXPECT_THAT(Result.OrphanedNodes, IsEmpty());
EXPECT_THAT(Result.ConditionalBranchNodes, SizeIs(1));
EXPECT_THAT(Result.ConditionalBranchNodes,
Each(Field(&ConditionalBranchNode::CFIProtection, Eq(true))));
EXPECT_THAT(
Result.ConditionalBranchNodes,
Contains(AllOf(Field(&ConditionalBranchNode::Address, Eq(0xDEADBEEF)),
Field(&ConditionalBranchNode::Target,
HasPath(Result, ElementsAre(0xDEADBEEF + 4))),
Field(&ConditionalBranchNode::Fallthrough,
HasPath(Result, ElementsAre(0xDEADBEEF + 2))))))
<< PrintToString(Result);
}
TEST_F(BasicGraphBuilderTest, BuildFlowGraphTestSinglePathJumpUd2) {
if (!SuccessfullyInitialised)
return;
Analysis.parseSectionContents(
{
0x75, 0x02, // 0: jne 4 [+2]
0xff, 0x10, // 2: callq *(%rax)
0x0f, 0x0b, // 4: ud2
},
{0xDEADBEEF, 0x0});
const auto Result =
GraphBuilder::buildFlowGraph(Analysis, {0xDEADBEEF + 2, 0x0});
EXPECT_THAT(Result.OrphanedNodes, IsEmpty());
EXPECT_THAT(Result.ConditionalBranchNodes, SizeIs(1));
EXPECT_THAT(Result.ConditionalBranchNodes,
Each(Field(&ConditionalBranchNode::CFIProtection, Eq(true))));
EXPECT_THAT(
Result.ConditionalBranchNodes,
Contains(AllOf(Field(&ConditionalBranchNode::Address, Eq(0xDEADBEEF)),
Field(&ConditionalBranchNode::Target,
HasPath(Result, ElementsAre(0xDEADBEEF + 4))),
Field(&ConditionalBranchNode::Fallthrough,
HasPath(Result, ElementsAre(0xDEADBEEF + 2))))))
<< PrintToString(Result);
}
TEST_F(BasicGraphBuilderTest, BuildFlowGraphTestDualPathDualUd2) {
if (!SuccessfullyInitialised)
return;
Analysis.parseSectionContents(
{
0x75, 0x03, // 0: jne 5 [+3]
0x90, // 2: nop
0xff, 0x10, // 3: callq *(%rax)
0x0f, 0x0b, // 5: ud2
0x75, 0xf9, // 7: jne 2 [-7]
0x0f, 0x0b, // 9: ud2
},
{0xDEADBEEF, 0x0});
const auto Result =
GraphBuilder::buildFlowGraph(Analysis, {0xDEADBEEF + 3, 0x0});
EXPECT_THAT(Result.OrphanedNodes, IsEmpty());
EXPECT_THAT(Result.ConditionalBranchNodes, SizeIs(2));
EXPECT_THAT(Result.ConditionalBranchNodes,
Each(Field(&ConditionalBranchNode::CFIProtection, Eq(true))));
EXPECT_THAT(
Result.ConditionalBranchNodes,
Contains(AllOf(
Field(&ConditionalBranchNode::Address, Eq(0xDEADBEEF)),
Field(&ConditionalBranchNode::Fallthrough,
HasPath(Result, ElementsAre(0xDEADBEEF + 2, 0xDEADBEEF + 3))),
Field(&ConditionalBranchNode::Target,
HasPath(Result, ElementsAre(0xDEADBEEF + 5))))))
<< PrintToString(Result);
EXPECT_THAT(
Result.ConditionalBranchNodes,
Contains(AllOf(
Field(&ConditionalBranchNode::Address, Eq(0xDEADBEEF + 7)),
Field(&ConditionalBranchNode::Fallthrough,
HasPath(Result, ElementsAre(0xDEADBEEF + 9))),
Field(&ConditionalBranchNode::Target,
HasPath(Result, ElementsAre(0xDEADBEEF + 2, 0xDEADBEEF + 3))))))
<< PrintToString(Result);
}
TEST_F(BasicGraphBuilderTest, BuildFlowGraphTestDualPathSingleUd2) {
if (!SuccessfullyInitialised)
return;
Analysis.parseSectionContents(
{
0x75, 0x05, // 0: jne 7 [+5]
0x90, // 2: nop
0xff, 0x10, // 3: callq *(%rax)
0x75, 0xfb, // 5: jne 2 [-5]
0x0f, 0x0b, // 7: ud2
},
{0xDEADBEEF, 0x0});
GraphResult Result =
GraphBuilder::buildFlowGraph(Analysis, {0xDEADBEEF + 3, 0x0});
EXPECT_THAT(Result.OrphanedNodes, IsEmpty());
EXPECT_THAT(Result.ConditionalBranchNodes, SizeIs(2));
EXPECT_THAT(Result.ConditionalBranchNodes,
Each(Field(&ConditionalBranchNode::CFIProtection, Eq(true))));
EXPECT_THAT(
Result.ConditionalBranchNodes,
Contains(AllOf(
Field(&ConditionalBranchNode::Address, Eq(0xDEADBEEF)),
Field(&ConditionalBranchNode::Fallthrough,
HasPath(Result, ElementsAre(0xDEADBEEF + 2, 0xDEADBEEF + 3))),
Field(&ConditionalBranchNode::Target,
HasPath(Result, ElementsAre(0xDEADBEEF + 7))))))
<< PrintToString(Result);
EXPECT_THAT(
Result.ConditionalBranchNodes,
Contains(AllOf(
Field(&ConditionalBranchNode::Address, Eq(0xDEADBEEF + 5)),
Field(&ConditionalBranchNode::Fallthrough,
HasPath(Result, ElementsAre(0xDEADBEEF + 7))),
Field(&ConditionalBranchNode::Target,
HasPath(Result, ElementsAre(0xDEADBEEF + 2, 0xDEADBEEF + 3))))))
<< PrintToString(Result);
}
TEST_F(BasicGraphBuilderTest, BuildFlowGraphFailures) {
if (!SuccessfullyInitialised)
return;
Analysis.parseSectionContents(
{
0x90, // 0: nop
0x75, 0xfe, // 1: jne 1 [-2]
},
{0xDEADBEEF, 0x0});
GraphResult Result =
GraphBuilder::buildFlowGraph(Analysis, {0xDEADBEEF, 0x0});
EXPECT_THAT(Result.OrphanedNodes, IsEmpty());
EXPECT_THAT(Result.ConditionalBranchNodes, IsEmpty());
Result = GraphBuilder::buildFlowGraph(Analysis, {0xDEADBEEF + 1, 0x0});
EXPECT_THAT(Result.OrphanedNodes, IsEmpty());
EXPECT_THAT(Result.ConditionalBranchNodes, IsEmpty());
Result = GraphBuilder::buildFlowGraph(Analysis, {0xDEADC0DE, 0x0});
EXPECT_THAT(Result.OrphanedNodes, IsEmpty());
EXPECT_THAT(Result.ConditionalBranchNodes, IsEmpty());
}
TEST_F(BasicGraphBuilderTest, BuildFlowGraphNoXrefs) {
if (!SuccessfullyInitialised)
return;
Analysis.parseSectionContents(
{
0xeb, 0xfe, // 0: jmp 0 [-2]
0xff, 0x10, // 2: callq *(%rax)
},
{0xDEADBEEF, 0x0});
GraphResult Result =
GraphBuilder::buildFlowGraph(Analysis, {0xDEADBEEF + 2, 0x0});
EXPECT_THAT(Result.ConditionalBranchNodes, IsEmpty());
EXPECT_THAT(Result.OrphanedNodes, ElementsAre(0xDEADBEEF + 2));
EXPECT_THAT(Result.IntermediateNodes, IsEmpty());
}
TEST_F(BasicGraphBuilderTest, BuildFlowGraphConditionalInfiniteLoop) {
if (!SuccessfullyInitialised)
return;
Analysis.parseSectionContents(
{
0x75, 0xfe, // 0: jne 0 [-2]
0xff, 0x10, // 2: callq *(%rax)
},
{0xDEADBEEF, 0x0});
GraphResult Result =
GraphBuilder::buildFlowGraph(Analysis, {0xDEADBEEF + 2, 0x0});
EXPECT_THAT(Result.OrphanedNodes, IsEmpty());
EXPECT_THAT(Result.ConditionalBranchNodes, SizeIs(1));
EXPECT_THAT(
Result.ConditionalBranchNodes,
Each(AllOf(Field(&ConditionalBranchNode::CFIProtection, Eq(false)),
Field(&ConditionalBranchNode::Target,
HasPath(Result, ElementsAre(0xDEADBEEF))),
Field(&ConditionalBranchNode::Fallthrough,
HasPath(Result, ElementsAre(0xDEADBEEF + 2))))))
<< PrintToString(Result);
}
TEST_F(BasicGraphBuilderTest, BuildFlowGraphUnconditionalInfiniteLoop) {
if (!SuccessfullyInitialised)
return;
Analysis.parseSectionContents(
{
0x75, 0x02, // 0: jne 4 [+2]
0xeb, 0xfc, // 2: jmp 0 [-4]
0xff, 0x10, // 4: callq *(%rax)
},
{0xDEADBEEF, 0x0});
GraphResult Result =
GraphBuilder::buildFlowGraph(Analysis, {0xDEADBEEF + 4, 0x0});
EXPECT_THAT(Result.OrphanedNodes, IsEmpty());
EXPECT_THAT(Result.ConditionalBranchNodes, SizeIs(1));
EXPECT_THAT(
Result.ConditionalBranchNodes,
Contains(
AllOf(Field(&ConditionalBranchNode::Address, Eq(0xDEADBEEF)),
Field(&ConditionalBranchNode::Fallthrough,
HasPath(Result, ElementsAre(0xDEADBEEF + 2, 0xDEADBEEF))),
Field(&ConditionalBranchNode::Target,
HasPath(Result, ElementsAre(0xDEADBEEF + 4))))))
<< PrintToString(Result);
}
TEST_F(BasicGraphBuilderTest, BuildFlowGraphNoFlowsToIndirection) {
if (!SuccessfullyInitialised)
return;
Analysis.parseSectionContents(
{
0x75, 0x00, // 0: jne 2 [+0]
0xeb, 0xfc, // 2: jmp 0 [-4]
0xff, 0x10, // 4: callq *(%rax)
},
{0xDEADBEEF, 0x0});
GraphResult Result =
GraphBuilder::buildFlowGraph(Analysis, {0xDEADBEEF + 4, 0x0});
EXPECT_THAT(Result.OrphanedNodes, ElementsAre(0xDEADBEEF + 4));
EXPECT_THAT(Result.ConditionalBranchNodes, IsEmpty());
}
TEST_F(BasicGraphBuilderTest, BuildFlowGraphLengthExceededUpwards) {
if (!SuccessfullyInitialised)
return;
Analysis.parseSectionContents(
{
0x75, 0x06, // 0: jne 8 [+6]
0x90, // 2: nop
0x90, // 3: nop
0x90, // 4: nop
0x90, // 5: nop
0xff, 0x10, // 6: callq *(%rax)
0x0f, 0x0b, // 8: ud2
},
{0xDEADBEEF, 0x0});
uint64_t PrevSearchLengthForConditionalBranch =
SearchLengthForConditionalBranch;
SearchLengthForConditionalBranch = 2;
GraphResult Result =
GraphBuilder::buildFlowGraph(Analysis, {0xDEADBEEF + 6, 0x0});
EXPECT_THAT(Result.OrphanedNodes, SizeIs(1));
EXPECT_THAT(Result.OrphanedNodes,
Each(HasPath(Result, ElementsAre(0xDEADBEEF + 4, 0xDEADBEEF + 5,
0xDEADBEEF + 6))))
<< PrintToString(Result);
EXPECT_THAT(Result.ConditionalBranchNodes, IsEmpty());
SearchLengthForConditionalBranch = PrevSearchLengthForConditionalBranch;
}
TEST_F(BasicGraphBuilderTest, BuildFlowGraphLengthExceededDownwards) {
if (!SuccessfullyInitialised)
return;
Analysis.parseSectionContents(
{
0x75, 0x02, // 0: jne 4 [+2]
0xff, 0x10, // 2: callq *(%rax)
0x90, // 4: nop
0x90, // 5: nop
0x90, // 6: nop
0x90, // 7: nop
0x0f, 0x0b, // 8: ud2
},
{0xDEADBEEF, 0x0});
uint64_t PrevSearchLengthForUndef = SearchLengthForUndef;
SearchLengthForUndef = 2;
GraphResult Result =
GraphBuilder::buildFlowGraph(Analysis, {0xDEADBEEF + 2, 0x0});
EXPECT_THAT(Result.OrphanedNodes, IsEmpty());
EXPECT_THAT(
Result.ConditionalBranchNodes,
Each(AllOf(
Field(&ConditionalBranchNode::CFIProtection, Eq(false)),
Field(&ConditionalBranchNode::Address, Eq(0xDEADBEEF)),
Field(&ConditionalBranchNode::Target,
HasPath(Result, ElementsAre(0xDEADBEEF + 4, 0xDEADBEEF + 5))),
Field(&ConditionalBranchNode::Fallthrough,
HasPath(Result, ElementsAre(0xDEADBEEF + 2))))))
<< PrintToString(Result);
SearchLengthForUndef = PrevSearchLengthForUndef;
}
// This test ensures when avoiding doing repeated work we still generate the
// paths correctly. We don't need to recalculate the flow from 0x2 -> 0x3 as it
// should only need to be generated once.
TEST_F(BasicGraphBuilderTest, BuildFlowGraphWithRepeatedWork) {
if (!SuccessfullyInitialised)
return;
Analysis.parseSectionContents(
{
0x75, 0x05, // 0: jne 7 [+5]
0x90, // 2: nop
0xff, 0x10, // 3: callq *(%rax)
0x75, 0xfb, // 5: jne 2 [-5]
0x0f, 0x0b, // 7: ud2
},
{0xDEADBEEF, 0x0});
GraphResult Result =
GraphBuilder::buildFlowGraph(Analysis, {0xDEADBEEF + 3, 0x0});
EXPECT_THAT(Result.OrphanedNodes, IsEmpty());
EXPECT_THAT(Result.ConditionalBranchNodes, SizeIs(2));
EXPECT_THAT(
Result.ConditionalBranchNodes,
Contains(AllOf(
Field(&ConditionalBranchNode::CFIProtection, Eq(true)),
Field(&ConditionalBranchNode::Address, Eq(0xDEADBEEF)),
Field(&ConditionalBranchNode::Target,
HasPath(Result, ElementsAre(0xDEADBEEF + 7))),
Field(&ConditionalBranchNode::Fallthrough,
HasPath(Result, ElementsAre(0xDEADBEEF + 2, 0xDEADBEEF + 3))))))
<< PrintToString(Result);
EXPECT_THAT(
Result.ConditionalBranchNodes,
Contains(AllOf(
Field(&ConditionalBranchNode::CFIProtection, Eq(true)),
Field(&ConditionalBranchNode::Address, Eq(0xDEADBEEF + 5)),
Field(&ConditionalBranchNode::Target,
HasPath(Result, ElementsAre(0xDEADBEEF + 2, 0xDEADBEEF + 3))),
Field(&ConditionalBranchNode::Fallthrough,
HasPath(Result, ElementsAre(0xDEADBEEF + 7))))))
<< PrintToString(Result);
EXPECT_THAT(Result.IntermediateNodes, SizeIs(1));
EXPECT_THAT(Result.IntermediateNodes,
UnorderedElementsAre(Pair(0xDEADBEEF + 2, 0xDEADBEEF + 3)));
}
TEST_F(BasicGraphBuilderTest, BuildFlowGraphComplexExample) {
if (!SuccessfullyInitialised)
return;
// The following code has this graph:
// +----------+ +--------------+
// | 20 | <--- | 0 |
// +----------+ +--------------+
// | |
// v v
// +----------+ +--------------+
// | 21 | | 2 |
// +----------+ +--------------+
// | |
// v v
// +----------+ +--------------+
// | 22 (ud2) | +-> | 7 |
// +----------+ | +--------------+
// ^ | |
// | | v
// +----------+ | +--------------+
// | 4 | | | 8 |
// +----------+ | +--------------+
// | | |
// v | v
// +----------+ | +--------------+ +------------+
// | 6 | -+ | 9 (indirect) | <- | 13 |
// +----------+ +--------------+ +------------+
// ^ |
// | v
// +--------------+ +------------+
// | 11 | | 15 (error) |
// +--------------+ +------------+
// Or, in image format: https://i.imgur.com/aX5fCoi.png
Analysis.parseSectionContents(
{
0x75, 0x12, // 0: jne 20 [+18]
0xeb, 0x03, // 2: jmp 7 [+3]
0x75, 0x10, // 4: jne 22 [+16]
0x90, // 6: nop
0x90, // 7: nop
0x90, // 8: nop
0xff, 0x10, // 9: callq *(%rax)
0xeb, 0xfc, // 11: jmp 9 [-4]
0x75, 0xfa, // 13: jne 9 [-6]
0xe8, 0x78, 0x56, 0x34, 0x12, // 15: callq OUTOFBOUNDS [+0x12345678]
0x90, // 20: nop
0x90, // 21: nop
0x0f, 0x0b, // 22: ud2
},
{0x1000, 0x0});
uint64_t PrevSearchLengthForUndef = SearchLengthForUndef;
SearchLengthForUndef = 5;
GraphResult Result =
GraphBuilder::buildFlowGraph(Analysis, {0x1000 + 9, 0x0});
EXPECT_THAT(Result.OrphanedNodes, SizeIs(1));
EXPECT_THAT(Result.ConditionalBranchNodes, SizeIs(3));
EXPECT_THAT(
Result.OrphanedNodes,
Each(AllOf(Eq(0x1000u + 11),
HasPath(Result, ElementsAre(0x1000 + 11, 0x1000 + 9)))))
<< PrintToString(Result);
EXPECT_THAT(Result.ConditionalBranchNodes,
Contains(AllOf(
Field(&ConditionalBranchNode::CFIProtection, Eq(true)),
Field(&ConditionalBranchNode::Address, Eq(0x1000u)),
Field(&ConditionalBranchNode::Target,
HasPath(Result, ElementsAre(0x1000 + 20, 0x1000 + 21,
0x1000 + 22))),
Field(&ConditionalBranchNode::Fallthrough,
HasPath(Result, ElementsAre(0x1000 + 2, 0x1000 + 7,
0x1000 + 8, 0x1000 + 9))))))
<< PrintToString(Result);
EXPECT_THAT(Result.ConditionalBranchNodes,
Contains(AllOf(
Field(&ConditionalBranchNode::CFIProtection, Eq(true)),
Field(&ConditionalBranchNode::Address, Eq(0x1000u + 4)),
Field(&ConditionalBranchNode::Target,
HasPath(Result, ElementsAre(0x1000 + 22))),
Field(&ConditionalBranchNode::Fallthrough,
HasPath(Result, ElementsAre(0x1000 + 6, 0x1000 + 7,
0x1000 + 8, 0x1000 + 9))))))
<< PrintToString(Result);
EXPECT_THAT(
Result.ConditionalBranchNodes,
Contains(AllOf(Field(&ConditionalBranchNode::CFIProtection, Eq(false)),
Field(&ConditionalBranchNode::Address, Eq(0x1000u + 13)),
Field(&ConditionalBranchNode::Target,
HasPath(Result, ElementsAre(0x1000 + 9))),
Field(&ConditionalBranchNode::Fallthrough,
HasPath(Result, ElementsAre(0x1000 + 15))))))
<< PrintToString(Result);
SearchLengthForUndef = PrevSearchLengthForUndef;
}
} // anonymous namespace
} // end namespace cfi_verify
} // end namespace llvm
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