Add support for metadata attachments for global variables.

This patch adds an IR, assembly and bitcode representation for metadata
attachments for globals. Future patches will port existing features to use
these new attachments.

Differential Revision: http://reviews.llvm.org/D20074

llvm-svn: 271348

1 files changed, 13 insertions, 13 deletions

diff --git a/llvm/lib/IR/Metadata.cpp b/llvm/lib/IR/Metadata.cpp
index 9435cd2ec35..a77565cf087 100644
--- a/llvm/lib/IR/Metadata.cpp
+++ b/llvm/lib/IR/Metadata.cpp
@@ -1281,24 +1281,24 @@ void Instruction::clearMetadataHashEntries() {
   setHasMetadataHashEntry(false);
 }
 
-MDNode *Function::getMetadata(unsigned KindID) const {
+MDNode *GlobalObject::getMetadata(unsigned KindID) const {
   if (!hasMetadata())
     return nullptr;
-  return getContext().pImpl->FunctionMetadata[this].lookup(KindID);
+  return getContext().pImpl->GlobalObjectMetadata[this].lookup(KindID);
 }
 
-MDNode *Function::getMetadata(StringRef Kind) const {
+MDNode *GlobalObject::getMetadata(StringRef Kind) const {
   if (!hasMetadata())
     return nullptr;
   return getMetadata(getContext().getMDKindID(Kind));
 }
 
-void Function::setMetadata(unsigned KindID, MDNode *MD) {
+void GlobalObject::setMetadata(unsigned KindID, MDNode *MD) {
   if (MD) {
     if (!hasMetadata())
       setHasMetadataHashEntry(true);
 
-    getContext().pImpl->FunctionMetadata[this].set(KindID, *MD);
+    getContext().pImpl->GlobalObjectMetadata[this].set(KindID, *MD);
     return;
   }
 
@@ -1306,29 +1306,29 @@ void Function::setMetadata(unsigned KindID, MDNode *MD) {
   if (!hasMetadata())
     return;
 
-  auto &Store = getContext().pImpl->FunctionMetadata[this];
+  auto &Store = getContext().pImpl->GlobalObjectMetadata[this];
   Store.erase(KindID);
   if (Store.empty())
     clearMetadata();
 }
 
-void Function::setMetadata(StringRef Kind, MDNode *MD) {
+void GlobalObject::setMetadata(StringRef Kind, MDNode *MD) {
   if (!MD && !hasMetadata())
     return;
   setMetadata(getContext().getMDKindID(Kind), MD);
 }
 
-void Function::getAllMetadata(
+void GlobalObject::getAllMetadata(
     SmallVectorImpl<std::pair<unsigned, MDNode *>> &MDs) const {
   MDs.clear();
 
   if (!hasMetadata())
     return;
 
-  getContext().pImpl->FunctionMetadata[this].getAll(MDs);
+  getContext().pImpl->GlobalObjectMetadata[this].getAll(MDs);
 }
 
-void Function::dropUnknownMetadata(ArrayRef<unsigned> KnownIDs) {
+void GlobalObject::dropUnknownMetadata(ArrayRef<unsigned> KnownIDs) {
   if (!hasMetadata())
     return;
   if (KnownIDs.empty()) {
@@ -1339,7 +1339,7 @@ void Function::dropUnknownMetadata(ArrayRef<unsigned> KnownIDs) {
   SmallSet<unsigned, 5> KnownSet;
   KnownSet.insert(KnownIDs.begin(), KnownIDs.end());
 
-  auto &Store = getContext().pImpl->FunctionMetadata[this];
+  auto &Store = getContext().pImpl->GlobalObjectMetadata[this];
   assert(!Store.empty());
 
   Store.remove_if([&KnownSet](const std::pair<unsigned, TrackingMDNodeRef> &I) {
@@ -1350,10 +1350,10 @@ void Function::dropUnknownMetadata(ArrayRef<unsigned> KnownIDs) {
     clearMetadata();
 }
 
-void Function::clearMetadata() {
+void GlobalObject::clearMetadata() {
   if (!hasMetadata())
     return;
-  getContext().pImpl->FunctionMetadata.erase(this);
+  getContext().pImpl->GlobalObjectMetadata.erase(this);
   setHasMetadataHashEntry(false);
 }