aboutsummaryrefslogtreecommitdiff
path: root/gcc/testsuite/gcc.dg/tree-ssa/pr14841.c
blob: 4f9c759da902f12c893d7c1899c0fbf26de67e42 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
/* PR tree-optimization/14841
   Make sure that we can fold a possible nested reference into a
   constant aggregate.  */

/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-store_ccp-details" } */

struct car {
  int speed;
  int tire_pressure[4];
};

const struct car cars[] = {
  { 75, { 10, 20, 30, 40 } },
  { 35, { 12, 34, 56, 78 } },
  { 40, { 19, 28, 37, 46 } }
};

extern void link_error (void);

void
foo (void)
{
  if (cars[1].tire_pressure[2] != 56)
    link_error ();
}

/* { dg-final { scan-tree-dump-times "Folded statement: if " 1 "store_ccp"} } */
/* { dg-final { cleanup-tree-dump "store_ccp" } } */