gcc/testsuite/gcc.dg/vect/vect-reduc-7.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 char 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 char const A[N] = {
  45     0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
  46     0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
  47     0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
  48     0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f
  49   };
  50
  51   static unsigned char const B[N] = {
  52     0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
  53     0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
  54     0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
  55     0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f
  56   };
  57
  58   static unsigned char const C[N] = {
  59     0xff, 0xfe, 0xfd, 0xfc, 0xfb, 0xfa, 0xf9, 0xf8,
  60     0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
  61     0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
  62     0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
  63   };
  64
  65   check_vect ();
  66
  67   testmin (A, 10, 1);
  68   testmin (B, 0x7f, 0x70);
  69   testmin (C, 0x7f, 0x09);
  70
  71   testmax (A, 0, 0x7f);
  72   testmax (B, 0, 0x8f);
  73   testmax (C, 0, 0xff);
  74
  75   return 0;
  76 }
  77
  78 /* { dg-final { cleanup-tree-dump "vect" } } */