gcc/testsuite/gcc.dg/tree-ssa/gen-vect-28.c

   1 /* { dg-do run { target vect_cmdline_needed } } */
   2 /* { dg-options "-O2 -ftree-vectorize -ftree-vectorizer-verbose=4 -fdump-tree-vect-stats" } */
   3 /* { dg-options "-O2 -ftree-vectorize -ftree-vectorizer-verbose=4 -fdump-tree-vect-stats -mno-sse" { target { i?86-*-* x86_64-*-* } } } */
   4
   5 #include <stdlib.h>
   6
   7 #define N 128
   8 #define OFF 3
   9
  10 /* unaligned store.  */
  11
  12 int main_1 (int off)
  13 {
  14   int i;
  15   char ia[N+OFF];
  16
  17   for (i = 0; i < N; i++)
  18     {
  19       ia[i+off] = 5;
  20     }
  21
  22   /* check results:  */
  23   for (i = 0; i < N; i++)
  24     {
  25       if (ia[i+off] != 5)
  26         abort ();
  27     }
  28
  29   return 0;
  30 }
  31
  32 static volatile int off = 1;
  33
  34 int main (void)
  35 {
  36   return main_1 (off);
  37 }
  38
  39
  40 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { ! avr-*-* } } } } */
  41 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" { target { ! avr-*-* } } } } */
  42 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 1 "vect" { target { ! avr-*-* } } } } */
  43 /* { dg-final { cleanup-tree-dump "vect" } } */