1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
//===- GISelMITest.h --------------------------------------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_UNITTEST_CODEGEN_GLOBALISEL_GISELMI_H
#define LLVM_UNITTEST_CODEGEN_GLOBALISEL_GISELMI_H
#include "llvm/CodeGen/GlobalISel/GISelChangeObserver.h"
#include "llvm/CodeGen/GlobalISel/LegalizerHelper.h"
#include "llvm/CodeGen/GlobalISel/LegalizerInfo.h"
#include "llvm/CodeGen/GlobalISel/MIPatternMatch.h"
#include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
#include "llvm/CodeGen/GlobalISel/Utils.h"
#include "llvm/CodeGen/MIRParser/MIRParser.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/TargetFrameLowering.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/TargetLowering.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/FileCheck/FileCheck.h"
#include "llvm/InitializePasses.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
#include "gtest/gtest.h"
using namespace llvm;
using namespace MIPatternMatch;
static inline void initLLVM() {
InitializeAllTargets();
InitializeAllTargetMCs();
InitializeAllAsmPrinters();
InitializeAllAsmParsers();
PassRegistry *Registry = PassRegistry::getPassRegistry();
initializeCore(*Registry);
initializeCodeGen(*Registry);
}
// Define a printers to help debugging when things go wrong.
namespace llvm {
std::ostream &
operator<<(std::ostream &OS, const LLT Ty);
std::ostream &
operator<<(std::ostream &OS, const MachineFunction &MF);
}
static std::unique_ptr<Module> parseMIR(LLVMContext &Context,
std::unique_ptr<MIRParser> &MIR,
const TargetMachine &TM,
StringRef MIRCode, const char *FuncName,
MachineModuleInfo &MMI) {
SMDiagnostic Diagnostic;
std::unique_ptr<MemoryBuffer> MBuffer = MemoryBuffer::getMemBuffer(MIRCode);
MIR = createMIRParser(std::move(MBuffer), Context);
if (!MIR)
return nullptr;
std::unique_ptr<Module> M = MIR->parseIRModule();
if (!M)
return nullptr;
M->setDataLayout(TM.createDataLayout());
if (MIR->parseMachineFunctions(*M, MMI))
return nullptr;
return M;
}
static std::pair<std::unique_ptr<Module>, std::unique_ptr<MachineModuleInfo>>
createDummyModule(LLVMContext &Context, const LLVMTargetMachine &TM,
StringRef MIRString, const char *FuncName) {
std::unique_ptr<MIRParser> MIR;
auto MMI = std::make_unique<MachineModuleInfo>(&TM);
std::unique_ptr<Module> M =
parseMIR(Context, MIR, TM, MIRString, FuncName, *MMI);
return make_pair(std::move(M), std::move(MMI));
}
static MachineFunction *getMFFromMMI(const Module *M,
const MachineModuleInfo *MMI) {
Function *F = M->getFunction("func");
auto *MF = MMI->getMachineFunction(*F);
return MF;
}
static void collectCopies(SmallVectorImpl<Register> &Copies,
MachineFunction *MF) {
for (auto &MBB : *MF)
for (MachineInstr &MI : MBB) {
if (MI.getOpcode() == TargetOpcode::COPY)
Copies.push_back(MI.getOperand(0).getReg());
}
}
class GISelMITest : public ::testing::Test {
protected:
GISelMITest() : ::testing::Test() {}
/// Prepare a target specific LLVMTargetMachine.
virtual std::unique_ptr<LLVMTargetMachine> createTargetMachine() const = 0;
/// Get the stub sample MIR test function.
virtual void getTargetTestModuleString(SmallString<512> &S,
StringRef MIRFunc) const = 0;
void setUp(StringRef ExtraAssembly = "") {
TM = createTargetMachine();
if (!TM)
return;
SmallString<512> MIRString;
getTargetTestModuleString(MIRString, ExtraAssembly);
ModuleMMIPair = createDummyModule(Context, *TM, MIRString, "func");
MF = getMFFromMMI(ModuleMMIPair.first.get(), ModuleMMIPair.second.get());
collectCopies(Copies, MF);
EntryMBB = &*MF->begin();
B.setMF(*MF);
MRI = &MF->getRegInfo();
B.setInsertPt(*EntryMBB, EntryMBB->end());
}
LLVMContext Context;
std::unique_ptr<LLVMTargetMachine> TM;
MachineFunction *MF;
std::pair<std::unique_ptr<Module>, std::unique_ptr<MachineModuleInfo>>
ModuleMMIPair;
SmallVector<Register, 4> Copies;
MachineBasicBlock *EntryMBB;
MachineIRBuilder B;
MachineRegisterInfo *MRI;
};
class AArch64GISelMITest : public GISelMITest {
std::unique_ptr<LLVMTargetMachine> createTargetMachine() const override;
void getTargetTestModuleString(SmallString<512> &S,
StringRef MIRFunc) const override;
};
class AMDGPUGISelMITest : public GISelMITest {
std::unique_ptr<LLVMTargetMachine> createTargetMachine() const override;
void getTargetTestModuleString(SmallString<512> &S,
StringRef MIRFunc) const override;
};
#define DefineLegalizerInfo(Name, SettingUpActionsBlock) \
class Name##Info : public LegalizerInfo { \
public: \
Name##Info(const TargetSubtargetInfo &ST) { \
using namespace TargetOpcode; \
const LLT s8 = LLT::scalar(8); \
(void)s8; \
const LLT s16 = LLT::scalar(16); \
(void)s16; \
const LLT s32 = LLT::scalar(32); \
(void)s32; \
const LLT s64 = LLT::scalar(64); \
(void)s64; \
const LLT s128 = LLT::scalar(128); \
(void)s128; \
do \
SettingUpActionsBlock while (0); \
getLegacyLegalizerInfo().computeTables(); \
verify(*ST.getInstrInfo()); \
} \
};
static inline bool CheckMachineFunction(const MachineFunction &MF,
StringRef CheckStr) {
SmallString<512> Msg;
raw_svector_ostream OS(Msg);
MF.print(OS);
auto OutputBuf = MemoryBuffer::getMemBuffer(Msg, "Output", false);
auto CheckBuf = MemoryBuffer::getMemBuffer(CheckStr, "");
SmallString<4096> CheckFileBuffer;
FileCheckRequest Req;
FileCheck FC(Req);
StringRef CheckFileText =
FC.CanonicalizeFile(*CheckBuf.get(), CheckFileBuffer);
SourceMgr SM;
SM.AddNewSourceBuffer(MemoryBuffer::getMemBuffer(CheckFileText, "CheckFile"),
SMLoc());
Regex PrefixRE = FC.buildCheckPrefixRegex();
if (FC.readCheckFile(SM, CheckFileText, PrefixRE))
return false;
auto OutBuffer = OutputBuf->getBuffer();
SM.AddNewSourceBuffer(std::move(OutputBuf), SMLoc());
return FC.checkInput(SM, OutBuffer);
}
#endif
|
