Keep track of objc method redeclarations in the same interface.

Avoid possible infinite loop when iterating over an ObjCMethod's redeclarations.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141946 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/Sema/SemaDeclObjC.cpp b/lib/Sema/SemaDeclObjC.cpp
index 82b5b17fa4..bdf492bbc1 100644
--- a/lib/Sema/SemaDeclObjC.cpp
+++ b/lib/Sema/SemaDeclObjC.cpp
@@ -2167,6 +2167,8 @@ void Sema::ActOnAtEnd(Scope *S, SourceRange AtEnd,
           Diag(PrevMethod->getLocation(), diag::note_previous_declaration);
         Method->setInvalidDecl();
       } else {
+        if (PrevMethod)
+          Context.setObjCMethodRedeclaration(PrevMethod, Method);
         InsMap[Method->getSelector()] = Method;
         /// The following allows us to typecheck messages to "id".
         AddInstanceMethodToGlobalPool(Method);
@@ -2186,6 +2188,8 @@ void Sema::ActOnAtEnd(Scope *S, SourceRange AtEnd,
         Diag(PrevMethod->getLocation(), diag::note_previous_declaration);
         Method->setInvalidDecl();
       } else {
+        if (PrevMethod)
+          Context.setObjCMethodRedeclaration(PrevMethod, Method);
         ClsMap[Method->getSelector()] = Method;
         /// The following allows us to typecheck messages to "Class".
         AddFactoryMethodToGlobalPool(Method);