revert CodeGen support for the alloc_size attribute until we finish the design of a more generic metadata node

llvm-svn: 159016

1 files changed, 0 insertions, 19 deletions

diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp
index c1106c52d4b..cb4ccb22ebd 100644
--- a/clang/lib/CodeGen/CGCall.cpp
+++ b/clang/lib/CodeGen/CGCall.cpp
@@ -2085,25 +2085,6 @@ RValue CodeGenFunction::EmitCall(const CGFunctionInfo &CallInfo,
   CS.setAttributes(Attrs);
   CS.setCallingConv(static_cast<llvm::CallingConv::ID>(CallingConv));
 
-  // add metadata for __attribute__((alloc_size(foo)))
-  if (TargetDecl) {
-    if (const AllocSizeAttr* Attr = TargetDecl->getAttr<AllocSizeAttr>()) {
-      SmallVector<llvm::Value*, 4> Args;
-      llvm::IntegerType *Ty = llvm::IntegerType::getInt32Ty(getLLVMContext());
-      bool isMethod = false;
-      if (const CXXMethodDecl *MDecl = dyn_cast<CXXMethodDecl>(TargetDecl))
-        isMethod = MDecl->isInstance();
-
-      for (AllocSizeAttr::args_iterator I = Attr->args_begin(),
-           E = Attr->args_end(); I != E; ++I) {
-        Args.push_back(llvm::ConstantInt::get(Ty, *I + isMethod));
-      }
-
-      llvm::MDNode *MD = llvm::MDNode::get(getLLVMContext(), Args);
-      CS.getInstruction()->setMetadata("alloc_size", MD);
-    }
-  }
-
   // In ObjC ARC mode with no ObjC ARC exception safety, tell the ARC
   // optimizer it can aggressively ignore unwind edges.
   if (CGM.getLangOpts().ObjCAutoRefCount)