gcc/testsuite/gcc.dg/pr87985.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -ftree-slp-vectorize" } */
   3
   4 char *bar (void);
   5 __INTPTR_TYPE__ baz (void);
   6
   7 void
   8 foo (__INTPTR_TYPE__ *q)
   9 {
  10   char *p = bar ();
  11   __INTPTR_TYPE__ a = baz ();
  12   __INTPTR_TYPE__ b = baz ();
  13   int i = 0;
  14 #define X q[i++] = a; q[i++] = b; a = a + b; b = b + a;
  15 #define Y X X X X X X X X X X
  16 #define Z Y Y Y Y Y Y Y Y Y Y
  17   Z Z Z Z Z Z Z Z Z Z
  18       p[a] = 1;
  19   p[b] = 2;
  20 }