Rename the VMCore unittest tree to IR. Somehow was missed when doing the
library rename.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171747 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/unittests/IR/MetadataTest.cpp b/unittests/IR/MetadataTest.cpp
new file mode 100644
index 0000000..352e83e
--- /dev/null
+++ b/unittests/IR/MetadataTest.cpp
@@ -0,0 +1,152 @@
+//===- 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());
+}
+}