gcc/testsuite/gcc.target/powerpc/fold-vec-splats-floatdouble.c

   1 /* Verify that overloaded built-ins for vec_splat with float and
   2    double inputs for VSX produce the right code.  */
   3
   4 /* { dg-do compile } */
   5 /* { dg-require-effective-target powerpc_vsx_ok } */
   6 /* { dg-options "-mvsx -O1" } */
   7
   8 #include <altivec.h>
   9
  10 vector float
  11 test1f (float x)
  12 {
  13   return vec_splats (x);
  14 }
  15
  16 vector double
  17 test1d (double x)
  18 {
  19   return vec_splats (x);
  20 }
  21
  22 // double test generates the permute instruction.
  23 /* { dg-final { scan-assembler-times "xxpermdi" 1 } } */
  24
  25 // float test generates a convert (double to single non-signalling) followed by a splat.
  26 /* { dg-final { scan-assembler-times {\mxscvdpspn?\M} 1 } } */
  27 /* { dg-final { scan-assembler-times {\mvspltw\M|\mxxspltw\M} 1 } } */