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Make MDNode use CallbackVH. Also change MDNode to store Value* instead of

Browse Source 
Constant* in preperation of a future change to support holding non-Constants
in an MDNode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71407 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2009-05-10 20:57:05 +00:00
parent af3fdb5dc4
commit cb33799b9f
12 changed files with 270 additions and 105 deletions
Download Patch File Download Diff File Expand all files Collapse all files

58
unittests/VMCore/MetadataTest.cpp
View File

@ -9,6 +9,10 @@
#include "gtest/gtest.h"
#include "llvm/Constants.h"
#include "llvm/Instructions.h"
#include "llvm/MDNode.h"
#include "llvm/Type.h"
#include "llvm/Support/ValueHandle.h"
#include <sstream>
using namespace llvm;
@ -59,7 +63,7 @@ TEST(MDStringTest, PrintingComplex) {
}
// Test the two constructors, and containing other Constants.
TEST(MDNodeTest, Everything) {
TEST(MDNodeTest, Simple) {
char x[3] = { 'a', 'b', 'c' };
char y[3] = { '1', '2', '3' };
@ -67,25 +71,25 @@ TEST(MDNodeTest, Everything) {
MDString *s2 = MDString::get(&y[0], &y[3]);
ConstantInt *CI = ConstantInt::get(APInt(8, 0));
std::vector<Constant *> V;
std::vector<Value *> V;
V.push_back(s1);
V.push_back(CI);
V.push_back(s2);
MDNode *n1 = MDNode::get(&V[0], 3);
Constant *const c1 = n1;
Value *const c1 = n1;
MDNode *n2 = MDNode::get(&c1, 1);
MDNode *n3 = MDNode::get(&V[0], 3);
EXPECT_NE(n1, n2);
EXPECT_EQ(n1, n3);
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(3u, n1->getNumElements());
EXPECT_EQ(s1, n1->getElement(0));
EXPECT_EQ(CI, n1->getElement(1));
EXPECT_EQ(s2, n1->getElement(2));
EXPECT_EQ(1u, n2->getNumOperands());
EXPECT_EQ(n1, n2->getOperand(0));
EXPECT_EQ(1u, n2->getNumElements());
EXPECT_EQ(n1, n2->getElement(0));
std::ostringstream oss1, oss2;
n1->print(oss1);
@ -94,4 +98,40 @@ TEST(MDNodeTest, Everything) {
EXPECT_STREQ("{ } !{{ } !{{ } !\"abc\", i8 0, { } !\"123\"}}",
oss2.str().c_str());
}
TEST(MDNodeTest, RAUW) {
Constant *C = ConstantInt::get(Type::Int32Ty, 1);
Instruction *I = new BitCastInst(C, Type::Int32Ty);
Value *const V1 = I;
MDNode *n1 = MDNode::get(&V1, 1);
WeakVH wn1 = n1;
Value *const V2 = C;
MDNode *n2 = MDNode::get(&V2, 1);
WeakVH wn2 = n2;
EXPECT_NE(wn1, wn2);
I->replaceAllUsesWith(C);
EXPECT_EQ(wn1, wn2);
}
TEST(MDNodeTest, Delete) {
Constant *C = ConstantInt::get(Type::Int32Ty, 1);
Instruction *I = new BitCastInst(C, Type::Int32Ty);
Value *const V = I;
MDNode *n = MDNode::get(&V, 1);
WeakVH wvh = n;
EXPECT_EQ(n, wvh);
delete I;
std::ostringstream oss;
wvh->print(oss);
EXPECT_STREQ("{ } !{null}", oss.str().c_str());
}
}