Teach VariadicMethodTypeChecker that CF references are valid arguments to variadic Objective-C methods.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127797 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 0 deletions

diff --git a/lib/StaticAnalyzer/Checkers/BasicObjCFoundationChecks.cpp b/lib/StaticAnalyzer/Checkers/BasicObjCFoundationChecks.cpp
index 792b720b8f..51847094da 100644
--- a/lib/StaticAnalyzer/Checkers/BasicObjCFoundationChecks.cpp
+++ b/lib/StaticAnalyzer/Checkers/BasicObjCFoundationChecks.cpp
@@ -14,6 +14,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "ClangSACheckers.h"
+#include "clang/Analysis/DomainSpecific/CocoaConventions.h"
 #include "clang/StaticAnalyzer/Core/Checker.h"
 #include "clang/StaticAnalyzer/Core/CheckerManager.h"
 #include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
@@ -594,6 +595,10 @@ void VariadicMethodTypeChecker::checkPreObjCMessage(ObjCMessage msg,
     // Ignore pointer constants.
     if (isa<loc::ConcreteInt>(msg.getArgSVal(I, state)))
       continue;
+    
+    // Ignore CF references, which can be toll-free bridged.
+    if (cocoa::isCFObjectRef(ArgTy))
+      continue;
 
     // Generate only one error node to use for all bug reports.
     if (!errorNode.hasValue()) {