gcc/testsuite/gcc.target/powerpc/pr78056-4.c

   1 /* { dg-do compile { target { powerpc*-*-* } } } */
   2 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power7" } } */
   3 /* powerpc_vsx_ok represents power7 */
   4 /* { dg-require-effective-target powerpc_vsx_ok } */
   5 /* { dg-skip-if "" { powerpc_p8vector_ok } } */
   6 /* { dg-skip-if "" { powerpc*-*-aix* } } */
   7 /* { dg-options "-mcpu=power7" } */
   8
   9 /* This test should succeed on both 32- and 64-bit configurations.  */
  10 #include <altivec.h>
  11
  12 /* Though the command line specifies power7 target, this function is
  13    to support power8, which will fail because this platform does not
  14    support power8.  */
  15 __attribute__((target("cpu=power8")))
  16 char
  17 char_fetch_add_relaxed (char *ptr, int value)
  18 { /* { dg-warning "lacks power8 support" } */
  19   return __atomic_fetch_add (ptr, value, __ATOMIC_RELAXED);
  20 }