Added test case for static analyzer to detect uses of uninitialized pointers as receivers in Objective-C message expressions.

Added test case directory "Analysis-Apple" which is only run on Apple (darwin) machines.

llvm-svn: 48844

clang/test/Analysis-Apple/uninit-msg-expr.m

@@ -0,0 +1,13 @@
+// RUN: clang -grsimple -verify %s
+
+#include <Foundation/NSString.h>
+
+void f1() {
+  NSString *aString;
+  unsigned i = [aString length]; // expected-warning {{Receiver in message expression is an uninitialized value}}
+}
+
+void f2() {
+  NSString *aString = nil;
+  unsigned i = [aString length]; // no-warning
+}

clang/test/Makefile

@@ -5,7 +5,7 @@ TESTDIRS := CodeGen Lexer Preprocessor Parser Sema Analysis Serialization
 
 # Only run rewriter tests on darwin.
 ifeq ($(OS),Darwin)
-TESTDIRS += Rewriter
+TESTDIRS += Rewriter Analysis-Apple
 endif
 
 all::

clang/test/Makefile.parallel

@@ -5,7 +5,7 @@ TESTDIRS = CodeGen Lexer Preprocessor Parser Sema Analysis Serialization
 
 # Only run rewriter tests on darwin.
 ifeq ($(OS),Darwin)
-TESTDIRS += Rewriter
+TESTDIRS += Rewriter Analysis-Apple
 endif
 
 ifdef VERBOSE