| /* { dg-do compile } */ |
| /* { dg-options "-O1 -fdump-tree-optimized" } */ |
| |
| struct |
| { |
| struct |
| { |
| int a; |
| int b; |
| } a[100]; |
| } a; |
| |
| typedef __SIZE_TYPE__ size_t; |
| void foo(size_t); |
| size_t *bar (void); |
| |
| int |
| main (void) |
| { |
| size_t *b = bar (); |
| |
| /* This should be folded. */ |
| foo (&a.a[50].a - &a.a[33].b); |
| foo ((size_t) &a.a[50].b - (size_t) &a); |
| |
| /* And this should not. */ |
| foo ((size_t) &b - (size_t) b); |
| return 0; |
| } |
| |
| /* Two of the calls to foo should be folded to just foo(constant). */ |
| |
| /* { dg-final { scan-tree-dump-times "foo \\(\[0-9\]*\\)" 2 "optimized" } } */ |
