Treat the weak export of block runtime symbols as a deployment-target

feature akin to the ARC runtime checks.  Removes a terrible hack where
IR gen needed to find the declarations of those symbols in the translation
unit.

llvm-svn: 139404

1 files changed, 0 insertions, 90 deletions

diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 7ccae084648..6df03c886fe 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -2396,93 +2396,3 @@ void CodeGenModule::EmitCoverageFile() {
     }
   }
 }
-
-///@name Custom Runtime Function Interfaces
-///@{
-//
-// FIXME: These can be eliminated once we can have clients just get the required
-// AST nodes from the builtin tables.
-
-llvm::Constant *CodeGenModule::getBlockObjectDispose() {
-  if (BlockObjectDispose)
-    return BlockObjectDispose;
-
-  DeclarationName DName(&Context.Idents.get("_Block_object_dispose"));
-  DeclContext::lookup_result
-    Lookup = Context.getTranslationUnitDecl()->lookup(DName);
-
-  // If there is an explicit decl, use that.
-  if (Lookup.first != Lookup.second)
-    if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(*Lookup.first))
-      return BlockObjectDispose =
-          GetAddrOfFunction(FD, getTypes().GetFunctionType(FD));
-
-  // Otherwise construct the function by hand.
-  llvm::Type *args[] = { Int8PtrTy, Int32Ty };
-  llvm::FunctionType *fty
-    = llvm::FunctionType::get(VoidTy, args, false);
-  return BlockObjectDispose =
-    CreateRuntimeFunction(fty, "_Block_object_dispose");
-}
-
-llvm::Constant *CodeGenModule::getBlockObjectAssign() {
-  if (BlockObjectAssign)
-    return BlockObjectAssign;
-
-  DeclarationName DName(&Context.Idents.get("_Block_object_assign"));
-  DeclContext::lookup_result
-    Lookup = Context.getTranslationUnitDecl()->lookup(DName);
-
-  // If there is an explicit decl, use that.
-  if (Lookup.first != Lookup.second)
-    if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(*Lookup.first))
-      return BlockObjectAssign =
-          GetAddrOfFunction(FD, getTypes().GetFunctionType(FD));
-
-  // Otherwise construct the function by hand.
-  llvm::Type *args[] = { Int8PtrTy, Int8PtrTy, Int32Ty };
-  llvm::FunctionType *fty
-    = llvm::FunctionType::get(VoidTy, args, false);
-  return BlockObjectAssign =
-    CreateRuntimeFunction(fty, "_Block_object_assign");
-}
-
-llvm::Constant *CodeGenModule::getNSConcreteGlobalBlock() {
-  if (NSConcreteGlobalBlock)
-    return NSConcreteGlobalBlock;
-
-  DeclarationName DName(&Context.Idents.get("_NSConcreteGlobalBlock"));
-  DeclContext::lookup_result
-    Lookup = Context.getTranslationUnitDecl()->lookup(DName);
-
-  // If there is an explicit decl, use that.
-  if (Lookup.first != Lookup.second)
-    if (const VarDecl *VD = dyn_cast<VarDecl>(*Lookup.first))
-      return NSConcreteGlobalBlock =
-          GetAddrOfGlobalVar(VD, getTypes().ConvertType(VD->getType()));
-
-  // Otherwise construct the variable by hand.
-  return NSConcreteGlobalBlock =
-    CreateRuntimeVariable(Int8PtrTy, "_NSConcreteGlobalBlock");
-}
-
-llvm::Constant *CodeGenModule::getNSConcreteStackBlock() {
-  if (NSConcreteStackBlock)
-    return NSConcreteStackBlock;
-
-  DeclarationName DName(&Context.Idents.get("_NSConcreteStackBlock"));
-  DeclContext::lookup_result
-    Lookup = Context.getTranslationUnitDecl()->lookup(DName);
-
-  // If there is an explicit decl, use that.
-  if (Lookup.first != Lookup.second)
-    if (const VarDecl *VD = dyn_cast<VarDecl>(*Lookup.first))
-      return NSConcreteStackBlock =
-          GetAddrOfGlobalVar(VD, getTypes().ConvertType(VD->getType()));
-
-  // Otherwise construct the variable by hand.
-  return NSConcreteStackBlock =
-    CreateRuntimeVariable(Int8PtrTy, "_NSConcreteStackBlock");
-}
-
-///@}