gcc/testsuite/gcc.dg/vect/vect-reduc-9.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include "tree-vect.h"
   4
   5 #define N 32
   6
   7 extern void abort (void);
   8 typedef unsigned short T;
   9
  10 __attribute__ ((noinline)) void
  11 testmax (const T *c, T init, T result)
  12 {
  13   T lc[N], accum = init;
  14   int i;
  15
  16   __builtin_memcpy (lc, c, sizeof(lc));
  17
  18   for (i = 0; i < N; i++) {
  19     accum = accum < lc[i] ? lc[i] : accum;
  20   }
  21
  22   if (accum != result)
  23     abort ();
  24 }
  25
  26 __attribute__ ((noinline)) void
  27 testmin (const T *c, T init, T result)
  28 {
  29   T lc[N], accum = init;
  30   int i;
  31
  32   __builtin_memcpy (lc, c, sizeof(lc));
  33
  34   for (i = 0; i < N; i++) {
  35     accum = accum > lc[i] ? lc[i] : accum;
  36   }
  37
  38   if (accum != result)
  39     abort ();
  40 }
  41
  42 int main (void)
  43 {
  44   static unsigned short const A[N] = {
  45     0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008,
  46     0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f, 0x0010,
  47     0x7000, 0x7100, 0x7200, 0x7300, 0x7400, 0x7500, 0x7600, 0x7700,
  48     0x7ff8, 0x7ff9, 0x7ffa, 0x7ffb, 0x7ffc, 0x7ffd, 0x7ffe, 0x7fff
  49   };
  50
  51   static unsigned short const B[N] = {
  52     0x7000, 0x7100, 0x7200, 0x7300, 0x7400, 0x7500, 0x7600, 0x7700,
  53     0x7ff8, 0x7ff9, 0x7ffa, 0x7ffb, 0x7ffc, 0x7ffd, 0x7ffe, 0x7fff,
  54     0x8000, 0x8001, 0x8002, 0x8003, 0x8004, 0x8005, 0x8006, 0x8007,
  55     0x8008, 0x8009, 0x800a, 0x800b, 0x800c, 0x800d, 0x800e, 0x800f
  56   };
  57
  58   static unsigned short const C[N] = {
  59     0xffff, 0xfffe, 0xfffd, 0xfffc, 0xfffb, 0xfffa, 0xfff9, 0xfff8,
  60     0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f, 0x0010,
  61     0x8000, 0x8001, 0x8002, 0x8003, 0x8004, 0x8005, 0x8006, 0x8007,
  62     0x7000, 0x7100, 0x7200, 0x7300, 0x7400, 0x7500, 0x7600, 0x7700,
  63   };
  64
  65   check_vect ();
  66
  67   testmin (A, 10, 1);
  68   testmin (B, 0x7fff, 0x7000);
  69   testmin (C, 0x7fff, 0x0009);
  70
  71   testmax (A, 0, 0x7fff);
  72   testmax (B, 0, 0x800f);
  73   testmax (C, 0, 0xffff);
  74
  75   return 0;
  76 }
  77