gcc/testsuite/gcc.target/powerpc/swaps-p8-25.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 "lxvd2x" } } */
   5 /* { dg-final { scan-assembler "stxvd2x" } } */
   6 /* { dg-final { scan-assembler-not "xxpermdi" } } */
   7
   8 /* Verify that swap optimization works correctly for a truncating splat.  */
   9
  10 /* Test case to resolve PR77613.  */
  11
  12 void pr77613 (signed short a, signed short *x, signed short *y)
  13 {
  14   unsigned long i;
  15
  16   for (i = 0; i < 1024; i++)
  17     y[i] = a * x[i] + y[i];
  18 }