IR: Allow multiple global metadata attachments with the same type.

This will be necessary to allow the global merge pass to attach
multiple debug info metadata nodes to global variables once we reverse
the edge from DIGlobalVariable to GlobalVariable.

Differential Revision: http://reviews.llvm.org/D20414

llvm-svn: 271358

1 files changed, 0 insertions, 26 deletions

diff --git a/llvm/unittests/IR/MetadataTest.cpp b/llvm/unittests/IR/MetadataTest.cpp
index d14743d..a36e131 100644
--- a/llvm/unittests/IR/MetadataTest.cpp
+++ b/llvm/unittests/IR/MetadataTest.cpp
@@ -2242,32 +2242,6 @@ TEST_F(FunctionAttachmentTest, getAll) {
   EXPECT_EQ(T2, MDs[3].second);
 }
 
-TEST_F(FunctionAttachmentTest, dropUnknownMetadata) {
-  Function *F = getFunction("foo");
-
-  MDTuple *T1 = getTuple();
-  MDTuple *T2 = getTuple();
-  MDTuple *P = getTuple();
-  DISubprogram *SP = getSubprogram();
-
-  F->setMetadata("other1", T1);
-  F->setMetadata(LLVMContext::MD_dbg, SP);
-  F->setMetadata("other2", T2);
-  F->setMetadata(LLVMContext::MD_prof, P);
-
-  unsigned Known[] = {Context.getMDKindID("other2"), LLVMContext::MD_prof};
-  F->dropUnknownMetadata(Known);
-
-  EXPECT_EQ(T2, F->getMetadata("other2"));
-  EXPECT_EQ(P, F->getMetadata(LLVMContext::MD_prof));
-  EXPECT_EQ(nullptr, F->getMetadata("other1"));
-  EXPECT_EQ(nullptr, F->getMetadata(LLVMContext::MD_dbg));
-
-  F->setMetadata("other2", nullptr);
-  F->setMetadata(LLVMContext::MD_prof, nullptr);
-  EXPECT_FALSE(F->hasMetadata());
-}
-
 TEST_F(FunctionAttachmentTest, Verifier) {
   Function *F = getFunction("foo");
   F->setMetadata("attach", getTuple());