gcc/testsuite/gcc.target/powerpc/swaps-p8-26.c

   1 /* { dg-do compile { target { powerpc64le-*-* } } } */
   2 /* { dg-skip-if "do not override -mcpu" { powerpc*-*-* } { "-mcpu=*" } { "-mcpu=power8" } } */
   3 /* { dg-options "-mcpu=power8 -O3 " } */
   4 /* { dg-final { scan-assembler-times "lxvd2x" 2 } } */
   5 /* { dg-final { scan-assembler "stxvd2x" } } */
   6 /* { dg-final { scan-assembler-not "xxpermdi" } } */
   7
   8 /* Verify that swap optimization does not interfere with unaligned
   9    loads and stores.  */
  10
  11 /* Test case to resolve PR79044.  */
  12
  13 #include <altivec.h>
  14
  15 void pr79044 (float *x, float *y, float *z)
  16 {
  17   vector float a = __builtin_vec_xl (0, x);
  18   vector float b = __builtin_vec_xl (0, y);
  19   vector float c = __builtin_vec_mul (a, b);
  20   __builtin_vec_xst (c, 0, z);
  21 }