gcc/testsuite/gcc.target/powerpc/vec-splat-constant-v8hi.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target power10_ok } */
   3 /* { dg-options "-mdejagnu-cpu=power10 -O2" } */
   4
   5 #include <altivec.h>
   6
   7 /* Test whether XXSPLTIW is generated for V8HI vector constants.  We make sure
   8    the power9 support (XXSPLTIB/VUPKLSB) is not done.  */
   9
  10 vector short
  11 v8hi_const_1 (void)
  12 {
  13   return (vector short) { 1, 1, 1, 1, 1, 1, 1, 1 };     /* VSLTPISH.  */
  14 }
  15
  16 vector short
  17 v8hi_const_126 (void)
  18 {
  19   return (vector short) { 126, 126, 126, 126,
  20                           126, 126, 126, 126 };         /* XXSPLTIW.  */
  21 }
  22
  23 vector short
  24 v8hi_const_1023 (void)
  25 {
  26   return (vector short) { 1023, 1023, 1023, 1023,
  27                           1023, 1023, 1023, 1023 };     /* XXSPLTIW.  */
  28 }
  29
  30 vector short
  31 v8hi_splats_1 (void)
  32 {
  33   return vec_splats ((short)1);                         /* VSLTPISH.  */
  34 }
  35
  36 vector short
  37 v8hi_splats_126 (void)
  38 {
  39   return vec_splats ((short)126);                       /* XXSPLTIW.  */
  40 }
  41
  42 vector short
  43 v8hi_splats_1023 (void)
  44 {
  45   return vec_splats ((short)1023);                      /* XXSPLTIW.  */
  46 }
  47
  48 /* Test that we can optimiza V8HI where all of the even elements are the same
  49    and all of the odd elements are the same.  */
  50 vector short
  51 v8hi_const_1023_1000 (void)
  52 {
  53   return (vector short) { 1023, 1000, 1023, 1000,
  54                           1023, 1000, 1023, 1000 };     /* XXSPLTIW.  */
  55 }
  56
  57 /* { dg-final { scan-assembler-times {\mxxspltiw\M}  5 } } */
  58 /* { dg-final { scan-assembler-times {\mvspltish\M}  2 } } */
  59 /* { dg-final { scan-assembler-not   {\mxxspltib\M}    } } */
  60 /* { dg-final { scan-assembler-not   {\mvupklsb\M}     } } */
  61 /* { dg-final { scan-assembler-not   {\mlxvx?\M}       } } */
  62 /* { dg-final { scan-assembler-not   {\mplxv\M}        } } */