--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/clang/test/SemaObjC/gcc-cast-ext.m	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,25 @@
+// RUN: %clang_cc1 -verify -fms-extensions -Wno-objc-root-class %s
+@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
+typedef struct _NSRange { } NSRange;
+
+@class PBXFileReference;
+
+@interface PBXDocBookmark
++ alloc;	// expected-note {{method 'alloc' declared here}}
+- autorelease;	// expected-note {{method 'autorelease' declared here}}
+@end
+
+// GCC allows pointer expressions in integer constant expressions.
+struct {
+  char control[((int)(char *)2)];
+} xx;
+
+@implementation PBXDocBookmark // expected-warning {{method definition for 'autorelease' not found}}\
+                               // expected-warning {{method definition for 'alloc' not found}}
+
++ (id)bookmarkWithFileReference:(PBXFileReference *)fileRef gylphRange:(NSRange)range anchor:(NSString *)htmlAnchor
+{
+    NSRange r = (NSRange)range;
+    return [[[self alloc] initWithFileReference:fileRef gylphRange:(NSRange)range anchor:(NSString *)htmlAnchor] autorelease];  // expected-warning {{method '-initWithFileReference:gylphRange:anchor:' not found (return type defaults to 'id')}}
+}
+@end