gcc/testsuite/objc.dg/method-4.m

   1 /* Check if class references (generated for the NeXT runtime) are appropriately
   2    folded.  This test is safe to run on all targets.  */
   3 /* Author: Ziemowit Laski <zlaski@apple.com>.  */
   4 /* { dg-options "-fnext-runtime" } */
   5 /* { dg-do compile } */
   6
   7 #include <objc/Object.h>
   8
   9 typedef Object ObjectTypedef1;
  10 typedef ObjectTypedef1 ObjectTypedef2;
  11 @compatibility_alias ObjectAlias1 ObjectTypedef2;
  12 @compatibility_alias ObjectAlias2 ObjectAlias1;
  13 typedef ObjectAlias2 ObjectTypedef3;
  14
  15 void foo(void) {
  16   id obj = [Object new];
  17   obj = [ObjectTypedef1 new];
  18   obj = [ObjectTypedef2 new];
  19   obj = [ObjectTypedef3 new];
  20   obj = [ObjectAlias1 new];
  21   obj = [ObjectAlias2 new];
  22 }
  23
  24 /* { dg-final { scan-assembler "_OBJC_CLASS_REFERENCES_0" } } */
  25 /* { dg-final { scan-assembler-not "_OBJC_CLASS_REFERENCES_1" } } */