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
|
//===- llvm/unittest/IR/Metadata.cpp - Metadata unit tests ----------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/Support/ValueHandle.h"
#include "llvm/Support/raw_ostream.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
class MetadataTest : public testing::Test {
protected:
LLVMContext Context;
};
typedef MetadataTest MDStringTest;
// Test that construction of MDString with different value produces different
// MDString objects, even with the same string pointer and nulls in the string.
TEST_F(MDStringTest, CreateDifferent) {
char x[3] = { 'f', 0, 'A' };
MDString *s1 = MDString::get(Context, StringRef(&x[0], 3));
x[2] = 'B';
MDString *s2 = MDString::get(Context, StringRef(&x[0], 3));
EXPECT_NE(s1, s2);
}
// Test that creation of MDStrings with the same string contents produces the
// same MDString object, even with different pointers.
TEST_F(MDStringTest, CreateSame) {
char x[4] = { 'a', 'b', 'c', 'X' };
char y[4] = { 'a', 'b', 'c', 'Y' };
MDString *s1 = MDString::get(Context, StringRef(&x[0], 3));
MDString *s2 = MDString::get(Context, StringRef(&y[0], 3));
EXPECT_EQ(s1, s2);
}
// Test that MDString prints out the string we fed it.
TEST_F(MDStringTest, PrintingSimple) {
char *str = new char[13];
strncpy(str, "testing 1 2 3", 13);
MDString *s = MDString::get(Context, StringRef(str, 13));
strncpy(str, "aaaaaaaaaaaaa", 13);
delete[] str;
std::string Str;
raw_string_ostream oss(Str);
s->print(oss);
EXPECT_STREQ("metadata !\"testing 1 2 3\"", oss.str().c_str());
}
// Test printing of MDString with non-printable characters.
TEST_F(MDStringTest, PrintingComplex) {
char str[5] = {0, '\n', '"', '\\', (char)-1};
MDString *s = MDString::get(Context, StringRef(str+0, 5));
std::string Str;
raw_string_ostream oss(Str);
s->print(oss);
EXPECT_STREQ("metadata !\"\\00\\0A\\22\\5C\\FF\"", oss.str().c_str());
}
typedef MetadataTest MDNodeTest;
// Test the two constructors, and containing other Constants.
TEST_F(MDNodeTest, Simple) {
char x[3] = { 'a', 'b', 'c' };
char y[3] = { '1', '2', '3' };
MDString *s1 = MDString::get(Context, StringRef(&x[0], 3));
MDString *s2 = MDString::get(Context, StringRef(&y[0], 3));
ConstantInt *CI = ConstantInt::get(getGlobalContext(), APInt(8, 0));
std::vector<Value *> V;
V.push_back(s1);
V.push_back(CI);
V.push_back(s2);
MDNode *n1 = MDNode::get(Context, V);
Value *const c1 = n1;
MDNode *n2 = MDNode::get(Context, c1);
Value *const c2 = n2;
MDNode *n3 = MDNode::get(Context, V);
MDNode *n4 = MDNode::getIfExists(Context, V);
MDNode *n5 = MDNode::getIfExists(Context, c1);
MDNode *n6 = MDNode::getIfExists(Context, c2);
EXPECT_NE(n1, n2);
#ifdef ENABLE_MDNODE_UNIQUING
EXPECT_EQ(n1, n3);
#else
(void) n3;
#endif
EXPECT_EQ(n4, n1);
EXPECT_EQ(n5, n2);
EXPECT_EQ(n6, (Value*)0);
EXPECT_EQ(3u, n1->getNumOperands());
EXPECT_EQ(s1, n1->getOperand(0));
EXPECT_EQ(CI, n1->getOperand(1));
EXPECT_EQ(s2, n1->getOperand(2));
EXPECT_EQ(1u, n2->getNumOperands());
EXPECT_EQ(n1, n2->getOperand(0));
}
TEST_F(MDNodeTest, Delete) {
Constant *C = ConstantInt::get(Type::getInt32Ty(getGlobalContext()), 1);
Instruction *I = new BitCastInst(C, Type::getInt32Ty(getGlobalContext()));
Value *const V = I;
MDNode *n = MDNode::get(Context, V);
WeakVH wvh = n;
EXPECT_EQ(n, wvh);
delete I;
}
TEST(NamedMDNodeTest, Search) {
LLVMContext Context;
Constant *C = ConstantInt::get(Type::getInt32Ty(Context), 1);
Constant *C2 = ConstantInt::get(Type::getInt32Ty(Context), 2);
Value *const V = C;
Value *const V2 = C2;
MDNode *n = MDNode::get(Context, V);
MDNode *n2 = MDNode::get(Context, V2);
Module M("MyModule", Context);
const char *Name = "llvm.NMD1";
NamedMDNode *NMD = M.getOrInsertNamedMetadata(Name);
NMD->addOperand(n);
NMD->addOperand(n2);
std::string Str;
raw_string_ostream oss(Str);
NMD->print(oss);
EXPECT_STREQ("!llvm.NMD1 = !{!0, !1}\n",
oss.str().c_str());
}
}
|
