gcc/testsuite/gcc.dg/vect/pr93247-1.c

   1 /* { dg-do compile } */
   2 /* { dg-additional-options "-march=skylake" { target x86_64-*-* i?86-*-* } } */
   3
   4 typedef struct {
   5   unsigned num;
   6 } VEC_tree_base;
   7
   8 enum {
   9   LTO_DECL_STREAM_NAMESPACE_DECL,
  10   LTO_DECL_STREAM_LABEL_DECL,
  11   LTO_N_DECL_STREAMS
  12 };
  13
  14 struct lto_tree_ref_encoder {
  15   VEC_tree_base *trees;
  16 } typedef *lto_out_decl_state_ptr;
  17
  18 typedef struct {
  19   lto_out_decl_state_ptr vec[1];
  20 } VEC_lto_out_decl_state_ptr_base;
  21
  22 VEC_lto_out_decl_state_ptr_base *a;
  23 int f;
  24 long g;
  25 int
  26 fn1(struct lto_tree_ref_encoder *p1) {
  27   int i;
  28   long b;
  29   i = 0;
  30   for (; i < LTO_N_DECL_STREAMS; i++) {
  31     struct lto_tree_ref_encoder c = *p1;
  32     int d;
  33     VEC_tree_base *e = c.trees;
  34     d = e ? e->num : 0;
  35     b += d;
  36   }
  37   return b;
  38 }
  39 int
  40 fn2() {
  41   lto_out_decl_state_ptr h;
  42   struct lto_tree_ref_encoder j;
  43   unsigned k;
  44   for (; k < f; k++) {
  45     h = a->vec[k];
  46     j = *h;
  47     g += fn1(&j);
  48   }
  49 }