gcc/testsuite/gcc.dg/tree-ssa/gen-vect-25.c

   1 /* { dg-do run { target vect_cmdline_needed } } */
   2 /* { dg-options "-O2 -ftree-vectorize -fdump-tree-vect-details -fvect-cost-model=dynamic" } */
   3 /* { dg-options "-O2 -ftree-vectorize -fdump-tree-vect-details -fvect-cost-model=dynamic -mno-sse" { target { i?86-*-* x86_64-*-* } } } */
   4
   5 #include <stdlib.h>
   6
   7 #define N 128
   8
   9 #if __LONG_MAX__ == 2147483647
  10 typedef short half_word;
  11 #else
  12 typedef int half_word;
  13 #endif
  14
  15 int main_1 (int n, int *p)
  16 {
  17   int i;
  18   half_word ib[N];
  19   half_word ia[N];
  20   int k;
  21
  22   for (i = 0; i < N; i++)
  23     {
  24       ia[i] = n;
  25     }
  26
  27   /* check results:  */
  28   for (i = 0; i < N; i++)
  29     {
  30       if (ia[i] != n)
  31         abort ();
  32     }
  33
  34   k = *p;
  35   for (i = 0; i < N; i++)
  36     {
  37       ib[i] = k;
  38     }
  39
  40   /* check results:  */
  41   for (i = 0; i < N; i++)
  42     {
  43       if (ib[i] != k)
  44         abort ();
  45     }
  46
  47   return 0;
  48 }
  49
  50 static volatile int n = 1;
  51
  52 int main (void)
  53 {
  54   return main_1 (n + 2, (int *) &n);
  55 }
  56
  57 /* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" { target { ! avr-*-* } } } } */
  58 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" { target { ! avr-*-* } } } } */