gcc/testsuite/gcc.dg/vect/bb-slp-33.c

   1 /* { dg-require-effective-target vect_int } */
   2
   3 #include "tree-vect.h"
   4
   5 extern void abort (void);
   6
   7 void __attribute__((noinline,noclone))
   8 test(int *__restrict__ a, int *__restrict__ b)
   9 {
  10   a[0] = b[0];
  11   a[1] = b[1];
  12   a[2] = b[2];
  13   a[3] = b[3];
  14   a[5] = 0;
  15   a[6] = 0;
  16   a[7] = 0;
  17   a[8] = 0;
  18 }
  19
  20 int main()
  21 {
  22   int a[9];
  23   int b[4];
  24   b[0] = 1;
  25   __asm__ volatile ("");
  26   b[1] = 2;
  27   __asm__ volatile ("");
  28   b[2] = 3;
  29   __asm__ volatile ("");
  30   b[3] = 4;
  31   __asm__ volatile ("");
  32   a[4] = 7;
  33   check_vect ();
  34   test(a, b);
  35   if (a[0] != 1
  36       || a[1] != 2
  37       || a[2] != 3
  38       || a[3] != 4
  39       || a[4] != 7
  40       || a[5] != 0
  41       || a[6] != 0
  42       || a[7] != 0
  43       || a[8] != 0)
  44     abort ();
  45   return 0;
  46 }
  47
  48 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 2 "slp2" { target { vect_element_align || vect_hw_misalign } } } } */