gcc/testsuite/gcc.target/powerpc/altivec-splat.c

   1 /* { dg-do compile { target powerpc*-*-* } } */
   2 /* { dg-require-effective-target powerpc_altivec_ok } */
   3 /* { dg-options "-maltivec -mabi=altivec -O2" } */
   4
   5 /* Testcase by Richard Guenther and Steven Bosscher.
   6    Check that "easy" AltiVec constants are correctly synthesized
   7    if they need to be reloaded.  */
   8
   9 typedef __attribute__ ((vector_size (16))) unsigned char v16qi;
  10 typedef __attribute__ ((vector_size (16))) unsigned short v8hi;
  11 typedef __attribute__ ((vector_size (16))) unsigned int v4si;
  12
  13 #define REGLIST                                                         \
  14   "77",  "78",  "79",  "80",  "81",  "82",  "83",  "84",  "85",  "86",  \
  15   "87",  "88",  "89",  "90",  "91",  "92",  "93",  "94",  "95",  "96",  \
  16   "97",  "98",  "99", "100", "101", "102", "103", "104", "105", "106",  \
  17  "107", "108"
  18
  19
  20 #define TEST(a, result, b)                              \
  21   void a##_##b (int h)                                  \
  22   {                                                     \
  23     volatile a tmp;                                     \
  24     while (h-- > 0)                                     \
  25       {                                                 \
  26         asm ("" : : : REGLIST);                         \
  27         tmp = (a) (result) __builtin_altivec_##b (5);   \
  28       }                                                 \
  29   }                                                     \
  30                                                         \
  31   void a##_##b##_neg (int h)                            \
  32   {                                                     \
  33     volatile a tmp;                                     \
  34     while (h-- > 0)                                     \
  35       {                                                 \
  36         asm ("" : : : REGLIST);                         \
  37         tmp = (a) (result) __builtin_altivec_##b (-5);  \
  38       }                                                 \
  39   }
  40
  41 TEST(v16qi, v16qi, vspltisb)
  42 TEST(v16qi, v8hi, vspltish)
  43 TEST(v16qi, v4si, vspltisw)
  44 TEST(v8hi, v16qi, vspltisb)
  45 TEST(v8hi, v8hi, vspltish)
  46 TEST(v8hi, v4si, vspltisw)
  47 TEST(v4si, v16qi, vspltisb)
  48 TEST(v4si, v8hi, vspltish)
  49 TEST(v4si, v4si, vspltisw)