Add the MDBuilder helper class for conveniently creating metadata.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154766 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 91 insertions, 0 deletions

diff --git a/unittests/Support/MDBuilderTest.cpp b/unittests/Support/MDBuilderTest.cpp
new file mode 100644
index 0000000..44218d3
--- /dev/null
+++ b/unittests/Support/MDBuilderTest.cpp
@@ -0,0 +1,91 @@
+//===- llvm/unittests/Support/MDBuilderTest.cpp - MDBuilder 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/Support/MDBuilder.h"
+using namespace llvm;
+
+namespace {
+
+class MDBuilderTest : public testing::Test {
+protected:
+  LLVMContext Context;
+};
+
+TEST_F(MDBuilderTest, CreateString) {
+  MDBuilder MDHelper(Context);
+  MDString *Str0 = MDHelper.CreateString("");
+  MDString *Str1 = MDHelper.CreateString("string");
+  EXPECT_EQ(Str0->getString(), StringRef(""));
+  EXPECT_EQ(Str1->getString(), StringRef("string"));
+}
+
+TEST_F(MDBuilderTest, CreateRangeMetadata) {
+  MDBuilder MDHelper(Context);
+  APInt A(8, 1), B(8, 2);
+  MDNode *R0 = MDHelper.CreateRange(A, A);
+  MDNode *R1 = MDHelper.CreateRange(A, B);
+  EXPECT_EQ(R0, (MDNode *)0);
+  EXPECT_NE(R1, (MDNode *)0);
+  EXPECT_EQ(R1->getNumOperands(), 2U);
+  EXPECT_TRUE(isa<ConstantInt>(R1->getOperand(0)));
+  EXPECT_TRUE(isa<ConstantInt>(R1->getOperand(1)));
+  ConstantInt *C0 = cast<ConstantInt>(R1->getOperand(0));
+  ConstantInt *C1 = cast<ConstantInt>(R1->getOperand(1));
+  EXPECT_EQ(C0->getValue(), A);
+  EXPECT_EQ(C1->getValue(), B);
+}
+TEST_F(MDBuilderTest, CreateAnonymousTBAARoot) {
+  MDBuilder MDHelper(Context);
+  MDNode *R0 = MDHelper.CreateAnonymousTBAARoot();
+  MDNode *R1 = MDHelper.CreateAnonymousTBAARoot();
+  EXPECT_NE(R0, R1);
+  EXPECT_GE(R0->getNumOperands(), 1U);
+  EXPECT_GE(R1->getNumOperands(), 1U);
+  EXPECT_EQ(R0->getOperand(0), R0);
+  EXPECT_EQ(R1->getOperand(0), R1);
+  EXPECT_TRUE(R0->getNumOperands() == 1 || R0->getOperand(1) == 0);
+  EXPECT_TRUE(R1->getNumOperands() == 1 || R1->getOperand(1) == 0);
+}
+TEST_F(MDBuilderTest, CreateTBAARoot) {
+  MDBuilder MDHelper(Context);
+  MDNode *R0 = MDHelper.CreateTBAARoot("Root");
+  MDNode *R1 = MDHelper.CreateTBAARoot("Root");
+  EXPECT_EQ(R0, R1);
+  EXPECT_GE(R0->getNumOperands(), 1U);
+  EXPECT_TRUE(isa<MDString>(R0->getOperand(0)));
+  EXPECT_EQ(cast<MDString>(R0->getOperand(0))->getString(), "Root");
+  EXPECT_TRUE(R0->getNumOperands() == 1 || R0->getOperand(1) == 0);
+}
+TEST_F(MDBuilderTest, CreateTBAANode) {
+  MDBuilder MDHelper(Context);
+  MDNode *R = MDHelper.CreateTBAARoot("Root");
+  MDNode *N0 = MDHelper.CreateTBAANode("Node", R);
+  MDNode *N1 = MDHelper.CreateTBAANode("edoN", R);
+  MDNode *N2 = MDHelper.CreateTBAANode("Node", R, true);
+  MDNode *N3 = MDHelper.CreateTBAANode("Node", R);
+  EXPECT_EQ(N0, N3);
+  EXPECT_NE(N0, N1);
+  EXPECT_NE(N0, N2);
+  EXPECT_GE(N0->getNumOperands(), 2U);
+  EXPECT_GE(N1->getNumOperands(), 2U);
+  EXPECT_GE(N2->getNumOperands(), 3U);
+  EXPECT_TRUE(isa<MDString>(N0->getOperand(0)));
+  EXPECT_TRUE(isa<MDString>(N1->getOperand(0)));
+  EXPECT_TRUE(isa<MDString>(N2->getOperand(0)));
+  EXPECT_EQ(cast<MDString>(N0->getOperand(0))->getString(), "Node");
+  EXPECT_EQ(cast<MDString>(N1->getOperand(0))->getString(), "edoN");
+  EXPECT_EQ(cast<MDString>(N2->getOperand(0))->getString(), "Node");
+  EXPECT_EQ(N0->getOperand(1), R);
+  EXPECT_EQ(N1->getOperand(1), R);
+  EXPECT_EQ(N2->getOperand(1), R);
+  EXPECT_TRUE(isa<ConstantInt>(N2->getOperand(2)));
+  EXPECT_EQ(cast<ConstantInt>(N2->getOperand(2))->getZExtValue(), 1U);
+}
+}