gcc/testsuite/gcc.target/powerpc/sse2-psubusb-1.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O3 -mpower8-vector -Wno-psabi" } */
   3 /* { dg-require-effective-target lp64 } */
   4 /* { dg-require-effective-target p8vector_hw } */
   5
   6 #ifndef CHECK_H
   7 #define CHECK_H "sse2-check.h"
   8 #endif
   9
  10 #include CHECK_H
  11
  12 #ifndef TEST
  13 #define TEST sse2_test_psubusb_1
  14 #endif
  15
  16 #include <emmintrin.h>
  17
  18 static __m128i
  19 __attribute__((noinline, unused))
  20 test (__m128i s1, __m128i s2)
  21 {
  22   __asm("" : "+v"(s1), "+v"(s2));
  23   return _mm_subs_epu8 (s1, s2);
  24 }
  25
  26 static void
  27 TEST (void)
  28 {
  29   union128i_b u, s1, s2;
  30   char e[16] = { 0 };
  31   int i, tmp;
  32
  33   s1.x = _mm_set_epi8 (30, 2, 3, 4, 10, 20, 30, 90, 80, 40, 100, 15, 98, 25, 98, 7);
  34   s2.x = _mm_set_epi8 (88, 44, 33, 22, 11, 98, 76, 100, 34, 78, 39, 6, 3, 4, 5, 119);
  35   u.x = test (s1.x, s2.x);
  36
  37   for (i = 0; i < 16; i++)
  38     {
  39       tmp = (unsigned char)s1.a[i] - (unsigned char)s2.a[i];
  40
  41       if (tmp > 255)
  42         tmp = -1;
  43       if (tmp < 0)
  44         tmp = 0;
  45
  46       e[i] = tmp;
  47     }
  48
  49   if (check_union128i_b (u, e))
  50 #if DEBUG
  51     {
  52       printf ("sse2_test_psubusb_1; check_union128i_b failed\n");
  53       printf (
  54           "\tadds\t([%x,%x,%x,%x, %x,%x,%x,%x, %x,%x,%x,%x, %x,%x,%x,%x],\n",
  55               s1.a[0], s1.a[1], s1.a[2], s1.a[3], s1.a[4], s1.a[5], s1.a[6],
  56               s1.a[7], s1.a[8], s1.a[9], s1.a[10], s1.a[11], s1.a[12], s1.a[13],
  57               s1.a[14], s1.a[15]);
  58       printf ("\t\t [%x,%x,%x,%x, %x,%x,%x,%x, %x,%x,%x,%x, %x,%x,%x,%x])\n",
  59               s2.a[0], s2.a[1], s2.a[2], s2.a[3], s2.a[4], s2.a[5], s2.a[6],
  60               s2.a[7], s2.a[8], s2.a[9], s2.a[10], s2.a[11], s2.a[12], s2.a[13],
  61               s2.a[14], s2.a[15]);
  62       printf ("\t ->\t [%x,%x,%x,%x, %x,%x,%x,%x, %x,%x,%x,%x, %x,%x,%x,%x]\n",
  63               u.a[0], u.a[1], u.a[2], u.a[3], u.a[4], u.a[5], u.a[6], u.a[7],
  64               u.a[8], u.a[9], u.a[10], u.a[11], u.a[12], u.a[13], u.a[14],
  65               u.a[15]);
  66       printf (
  67           "\texpect\t [%x,%x,%x,%x, %x,%x,%x,%x, %x,%x,%x,%x, %x,%x,%x,%x]\n",
  68           e[0], e[1], e[2], e[3], e[4], e[5], e[6], e[7], e[8], e[9], e[10],
  69           e[11], e[12], e[13], e[14], e[15]);
  70     }
  71 #else
  72     abort ();
  73 #endif
  74 }