gcc/testsuite/gcc.dg/vect/bb-slp-45.c

   1 /* { dg-require-effective-target vect_double } */
   2
   3 #include "tree-vect.h"
   4
   5 extern void abort (void);
   6
   7 double a[8], b[8];
   8 int x;
   9
  10 void __attribute__((noinline,noclone))
  11 bar (void)
  12 {
  13   x = 1;
  14 }
  15
  16 void __attribute__((noinline,noclone))
  17 foo(int i)
  18 {
  19   double tem1 = a[2*i];
  20   double tem2 = 2*a[2*i+1];
  21   bar ();
  22   b[2*i] = 2*tem1;
  23   b[2*i+1] = tem2;
  24 }
  25
  26 int main()
  27 {
  28   int i;
  29   check_vect ();
  30   for (i = 0; i < 8; ++i)
  31     b[i] = i;
  32   foo (2);
  33   return 0;
  34 }
  35
  36 /* { dg-final { scan-tree-dump "optimized: basic block" "slp2" } } */