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

   1 /* { dg-do run } */
   2 /* { dg-options "-O3 -mpower8-vector -Wno-psabi" } */
   3 /* { dg-require-effective-target p8vector_hw } */
   4
   5 #ifndef CHECK_H
   6 #define CHECK_H "sse2-check.h"
   7 #endif
   8
   9 #include CHECK_H
  10
  11 #ifndef TEST
  12 #define TEST sse2_test_psubsb_1
  13 #endif
  14
  15 #include <emmintrin.h>
  16
  17 static __m128i
  18 __attribute__((noinline, unused))
  19 test (__m128i s1, __m128i s2)
  20 {
  21   __asm("" : "+v"(s1), "+v"(s2));
  22   return _mm_subs_epi8 (s1, s2);
  23 }
  24
  25 static void
  26 TEST (void)
  27 {
  28   union128i_b u, s1, s2;
  29   char e[16];
  30   int i, tmp;
  31
  32   s1.x = _mm_set_epi8 (1,2,3,4,10,20,30,90,-80,-40,-100,-15,98, 25, 98,7);
  33   s2.x = _mm_set_epi8 (88, 44, 33, 22, 11, 98, 76, -100, -34, -78, -39, 6, 3, 4, 5, 119);
  34   u.x = test (s1.x, s2.x);
  35
  36   for (i = 0; i < 16; i++)
  37     {
  38       tmp = (signed char)s1.a[i] - (signed char)s2.a[i];
  39
  40       if (tmp > 127)
  41         tmp = 127;
  42       if (tmp < -128)
  43         tmp = -128;
  44
  45       e[i] = tmp;
  46     }
  47
  48   if (check_union128i_b (u, e))
  49     abort ();
  50 }