gcc/testsuite/gcc.dg/sync-fetch-bool.c

   1 /* PR c/68966 - atomic_fetch_* on atomic_bool not diagnosed
   2    Test to verify that calls to __sync_fetch_op funcions with a _Bool
   3    argument are rejected.  This is necessary because GCC expects that
   4    all initialized _Bool objects have a specific representation and
   5    allowing atomic operations to change it would break the invariant.  */
   6 /* { dg-do compile } */
   7 /* { dg-options "-pedantic-errors -std=c11" } */
   8
   9
  10 void test_sync_atomic_bool (_Atomic _Bool *a)
  11 {
  12   __sync_fetch_and_add (a, 1);   /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__sync_fetch_and_add." } */
  13   __sync_fetch_and_sub (a, 1);   /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__sync_fetch_and_sub." } */
  14   __sync_fetch_and_and (a, 1);   /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__sync_fetch_and_and." } */
  15   __sync_fetch_and_xor (a, 1);   /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__sync_fetch_and_xor." } */
  16   __sync_fetch_and_or (a, 1);   /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__sync_fetch_and_or." } */
  17   __sync_fetch_and_nand (a, 1);   /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__sync_fetch_and_nand." } */
  18
  19   __sync_add_and_fetch (a, 1);   /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__sync_add_and_fetch." } */
  20   __sync_sub_and_fetch (a, 1);   /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__sync_sub_and_fetch." } */
  21   __sync_and_and_fetch (a, 1);   /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__sync_and_and_fetch." } */
  22   __sync_xor_and_fetch (a, 1);   /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__sync_xor_and_fetch." } */
  23   __sync_or_and_fetch (a, 1);   /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__sync_or_and_fetch." } */
  24   __sync_nand_and_fetch (a, 1);   /* { dg-error "operand type ._Atomic _Bool \\*. is incompatible with argument 1 of .__sync_nand_and_fetch." } */
  25
  26   /* The following are valid and must be accepted.  */
  27   __sync_bool_compare_and_swap (a, 0, 1);
  28   __sync_val_compare_and_swap (a, 0, 1);
  29   __sync_lock_test_and_set (a, 1);
  30   __sync_lock_release (a);
  31 }
  32
  33 void test_sync_bool (_Bool *b)
  34 {
  35   __sync_fetch_and_add (b, 1);   /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__sync_fetch_and_add." } */
  36   __sync_fetch_and_sub (b, 1);   /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__sync_fetch_and_sub." } */
  37   __sync_fetch_and_and (b, 1);   /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__sync_fetch_and_and." } */
  38   __sync_fetch_and_xor (b, 1);   /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__sync_fetch_and_xor." } */
  39   __sync_fetch_and_or (b, 1);   /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__sync_fetch_and_or." } */
  40   __sync_fetch_and_nand (b, 1);   /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__sync_fetch_and_nand." } */
  41
  42   __sync_add_and_fetch (b, 1);   /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__sync_add_and_fetch." } */
  43   __sync_sub_and_fetch (b, 1);   /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__sync_sub_and_fetch." } */
  44   __sync_and_and_fetch (b, 1);   /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__sync_and_and_fetch." } */
  45   __sync_xor_and_fetch (b, 1);   /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__sync_xor_and_fetch." } */
  46   __sync_or_and_fetch (b, 1);   /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__sync_or_and_fetch." } */
  47   __sync_nand_and_fetch (b, 1);   /* { dg-error "operand type ._Bool \\*. is incompatible with argument 1 of .__sync_nand_and_fetch." } */
  48
  49   /* The following are valid and must be accepted.  */
  50   __sync_bool_compare_and_swap (b, 0, 1);
  51   __sync_val_compare_and_swap (b, 0, 1);
  52   __sync_lock_test_and_set (b, 1);
  53   __sync_lock_release (b);
  54 }