gcc/testsuite/gcc.target/powerpc/clone2.c

   1 /* { dg-do run { target { powerpc*-*-linux* } } } */
   2 /* { dg-options "-mvsx -O2" } */
   3 /* { dg-require-effective-target powerpc_p9vector_ok } */
   4 /* { dg-require-effective-target ppc_cpu_supports_hw } */
   5
   6 #include <stddef.h>
   7 #include <stdlib.h>
   8
   9 /* Power9 (aka, ISA 3.0) has a MODSD instruction to do modulus, while Power8
  10    (aka, ISA 2.07) has to do modulus with divide and multiply.  Make sure that
  11    the basic support for target_clones runs.
  12
  13    Restrict ourselves to Linux, since IFUNC might not be supported in other
  14    operating systems.  */
  15
  16 __attribute__((__target_clones__("cpu=power9,default")))
  17 long mod_func (long a, long b)
  18 {
  19   return a % b;
  20 }
  21
  22 #define X 53L
  23 #define Y 7L
  24 int
  25 main (void)
  26 {
  27   if (mod_func (X, Y) != (X % Y))
  28     abort ();
  29
  30   return 0;
  31 }