1 files changed, 28 insertions, 0 deletions
diff --git a/clang/test/Analysis/CFNumber.c b/clang/test/Analysis/CFNumber.c
new file mode 100644
index 00000000000..e31355b846c
--- /dev/null
+++ b/clang/test/Analysis/CFNumber.c
@@ -0,0 +1,28 @@
+// RUN: clang -checker-cfref -verify %s
+
+typedef signed long CFIndex;
+typedef const struct __CFAllocator * CFAllocatorRef;
+enum { kCFNumberSInt8Type = 1, kCFNumberSInt16Type = 2,
+       kCFNumberSInt32Type = 3, kCFNumberSInt64Type = 4,
+       kCFNumberFloat32Type = 5, kCFNumberFloat64Type = 6,
+       kCFNumberCharType = 7, kCFNumberShortType = 8,
+       kCFNumberIntType = 9, kCFNumberLongType = 10,
+       kCFNumberLongLongType = 11, kCFNumberFloatType = 12,
+       kCFNumberDoubleType = 13, kCFNumberCFIndexType = 14,
+       kCFNumberNSIntegerType = 15, kCFNumberCGFloatType = 16,
+       kCFNumberMaxType = 16 };
+typedef CFIndex CFNumberType;
+typedef const struct __CFNumber * CFNumberRef;
+extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr);
+
+#include <stdint.h>
+
+CFNumberRef f1() {
+  uint8_t x = 1;
+  return CFNumberCreate(0, kCFNumberSInt16Type, &x);  // expected-warning{{An 8 bit integer is used to initialize a CFNumber object that represents a 16 bit integer. 8 bits of the CFNumber value will be garbage.}}
+}
+
+CFNumberRef f2() {
+  uint16_t x = 1;
+  return CFNumberCreate(0, kCFNumberSInt8Type, &x); // expected-warning{{A 16 bit integer is used to initialize a CFNumber object that represents an 8 bit integer. 8 bits of the input integer will be lost.}}
+}