gcc/testsuite/gcc.dg/tree-ssa/gen-vect-26.c

   1 /* { dg-do run { target vect_cmdline_needed } } */
   2 /* { dg-options "-O2 -fno-tree-loop-distribute-patterns -ftree-vectorize -fdump-tree-vect-details -fvect-cost-model=dynamic" } */
   3 /* { dg-additional-options "-mno-sse" { target { i?86-*-* x86_64-*-* } } } */
   4
   5 #include <stdlib.h>
   6
   7 #define N 128
   8
   9 /* unaligned store.  */
  10
  11 int main ()
  12 {
  13   int i;
  14   char ia[N+1];
  15
  16   for (i = 1; i <= N; i++)
  17     {
  18       ia[i] = 5;
  19     }
  20
  21   /* check results:  */
  22   #pragma GCC novector
  23   for (i = 1; i <= N; i++)
  24     {
  25       if (ia[i] != 5)
  26         abort ();
  27     }
  28
  29   return 0;
  30 }
  31
  32
  33 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { ! { avr-*-* pru-*-* } } } } } */
  34 /* IBM Z does not require special alignment for vectorization.  */
  35 /* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" { target { ! { avr-*-* pru-*-* s390*-*-* } } } } } */
  36 /* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 1 "vect" { target { ! { avr-*-* pru-*-* s390*-*-* } } } } } */