153 lines
4.3 KiB
C++
153 lines
4.3 KiB
C++
//===- llvm/unittest/VMCore/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 "gtest/gtest.h"
|
|
#include "llvm/Constants.h"
|
|
#include "llvm/Instructions.h"
|
|
#include "llvm/LLVMContext.h"
|
|
#include "llvm/Metadata.h"
|
|
#include "llvm/Module.h"
|
|
#include "llvm/Type.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
#include "llvm/Support/ValueHandle.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());
|
|
}
|
|
}
|