test/Rewriter/rewrite-modern-typeof.mm

// RUN: %clang_cc1 -x objective-c++ -fblocks -fms-extensions -rewrite-objc %s -o %t-rw.cpp
// RUN: FileCheck -check-prefix LP --input-file=%t-rw.cpp %s
// RUN: %clang_cc1 -fsyntax-only -Wno-address-of-temporary -Wno-attributes -D"Class=void*" -D"id=void*" -D"SEL=void*" -D"__declspec(X)=" %t-rw.cpp

typedef unsigned long size_t;
extern "C" {
extern "C" void *_Block_copy(const void *aBlock);
extern "C" void _Block_release(const void *aBlock);
}

int main() {
    __attribute__((__blocks__(byref))) int a = 42;
    int save_a = a;

    void (^b)(void) = ^{
        ((__typeof(^{ a = 2; }))_Block_copy((const void *)(^{ a = 2; })));
    };

    ((__typeof(b))_Block_copy((const void *)(b)));

    return 0;
}

// CHECK-LP: ((void (^)(void))_Block_copy((const void *)(b)))

// radar 7628153
void f() {
	int a;	
	__typeof__(a) aVal = a;
	char *a1t = (char *)@encode(__typeof__(a));
        __typeof__(aVal) bVal;
	char *a2t = (char *)@encode(__typeof__(bVal));
        __typeof__(bVal) cVal = bVal;
	char *a3t = (char *)@encode(__typeof__(cVal));

}

// rdar://11239324
void x() {
    id y;
    void (^z)() = ^{ };
    y = (id)((__typeof(z))_Block_copy((const void *)(z)));
}

// CHECK-LP: int aVal =  a;

// CHECK-LP: int bVal;