gcc/testsuite/gcc.target/powerpc/clone1.c

   1 /* { dg-do compile { target { powerpc*-*-linux* && lp64 } } } */
   2 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power8" } } */
   3 /* { dg-options "-mcpu=power8 -O2" } */
   4 /* { dg-require-effective-target powerpc_p9vector_ok } */
   5 /* { dg-require-effective-target ppc_cpu_supports_hw } */
   6
   7 /* Power9 (aka, ISA 3.0) has a MODSD instruction to do modulus, while Power8
   8    (aka, ISA 2.07) has to do modulus with divide and multiply.  Make sure
   9    both clone functions are generated.
  10
  11    Restrict ourselves to Linux, since IFUNC might not be supported in other
  12    operating systems.  */
  13
  14 __attribute__((target_clones("cpu=power9,default")))
  15 long mod_func (long a, long b)
  16 {
  17   return a % b;
  18 }
  19
  20 long mod_func_or (long a, long b, long c)
  21 {
  22   return mod_func (a, b) | c;
  23 }
  24
  25 /* { dg-final { scan-assembler-times {\mdivd\M}  1 } } */
  26 /* { dg-final { scan-assembler-times {\mmulld\M} 1 } } */
  27 /* { dg-final { scan-assembler-times {\mmodsd\M} 1 } } */