Revert "Add support for attribute 'noescape'."

This reverts r313717.

I closed the wrong phabricator review.

llvm-svn: 313721

1 files changed, 2 insertions, 15 deletions

diff --git a/clang/lib/Sema/SemaDeclCXX.cpp b/clang/lib/Sema/SemaDeclCXX.cpp
index 312e0e24828..529084a517b 100644
--- a/clang/lib/Sema/SemaDeclCXX.cpp
+++ b/clang/lib/Sema/SemaDeclCXX.cpp
@@ -14081,21 +14081,8 @@ void Sema::DiagnoseReturnInConstructorExceptionHandler(CXXTryStmt *TryBlock) {
 
 bool Sema::CheckOverridingFunctionAttributes(const CXXMethodDecl *New,
                                              const CXXMethodDecl *Old) {
-  const auto *NewFT = New->getType()->getAs<FunctionProtoType>();
-  const auto *OldFT = Old->getType()->getAs<FunctionProtoType>();
-
-  if (OldFT->hasExtParameterInfos()) {
-    for (unsigned I = 0, E = OldFT->getNumParams(); I != E; ++I)
-      // A parameter of the overriding method should be annotated with noescape
-      // if the corresponding parameter of the overridden method is annotated.
-      if (OldFT->getExtParameterInfo(I).isNoEscape() &&
-          !NewFT->getExtParameterInfo(I).isNoEscape()) {
-        Diag(New->getParamDecl(I)->getLocation(),
-             diag::warn_overriding_method_missing_noescape);
-        Diag(Old->getParamDecl(I)->getLocation(),
-             diag::note_overridden_marked_noescape);
-      }
-  }
+  const FunctionType *NewFT = New->getType()->getAs<FunctionType>();
+  const FunctionType *OldFT = Old->getType()->getAs<FunctionType>();
 
   CallingConv NewCC = NewFT->getCallConv(), OldCC = OldFT->getCallConv();