| /* { dg-do run } */ |
| /* { dg-options "-fdump-tree-alias" } */ |
| /* { dg-skip-if "" { *-*-* } { "-O0" "-fno-fat-lto-objects" } { "" } } */ |
| |
| struct Foo { |
| int **p; |
| int **q; |
| }; |
| |
| int __attribute__((noinline)) |
| bar (void) |
| { |
| struct Foo f; |
| int j, i = 1; |
| char *p; |
| int *x = &i; |
| int *y = &j; |
| f.p = &y; |
| f.q = &x; |
| p = (char *)&f; |
| for (j = 0; j < sizeof (int *); ++j) |
| p++; |
| return ***(int ***)p; |
| } |
| extern void abort (void); |
| int main() |
| { |
| if (bar () != 1) |
| abort (); |
| return 0; |
| } |
| |
| /* In theory = { i } is the correct solution. But it's not easy to scan |
| for that reliably, so just use what we create now. */ |
| /* { dg-final { scan-tree-dump "= { i j }" "alias" } } */ |
