gcc/testsuite/gcc.target/powerpc/p9-permute.c

   1 /* { dg-do compile { target { powerpc64*-*-* } } } */
   2 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power9" } } */
   3 /* { dg-options "-mcpu=power9 -O2" } */
   4 /* { dg-require-effective-target powerpc_p9vector_ok } */
   5
   6 #include <altivec.h>
   7
   8 vector long long
   9 permute (vector long long *p, vector long long *q, vector unsigned char mask)
  10 {
  11   vector long long a = *p;
  12   vector long long b = *q;
  13
  14   /* Force a, b to be in FPR registers.  */
  15   __asm__ (" # a: %x0, b: %x1" : "+d" (a), "+d" (b));
  16
  17   return vec_perm (a, b, mask);
  18 }
  19
  20 /* expect xxpermr on little-endian, xxperm on big-endian */
  21 /* { dg-final { scan-assembler     "xxperm" } } */
  22 /* { dg-final { scan-assembler-not "vperm"  } } */