1/* { dg-do compile } */ 2/* { dg-options "-w -fdump-tree-gimple" } */ 3 4/* Things that should not be folded. */ 5 6struct { long base; int tail; void * volatile ptr; } *s; 7int foo3 (void) { return s == &s; } 8int foo5 (void) { return s->ptr == s->ptr; } 9 10struct { union { int i; short s } u; } x; 11int foo6 (void) { return x.u.i == x.u.s; } 12 13void **p; 14int foo8 (void) { return p == &p; } 15int foo9 (void) { return *p == p; } 16int foo10 (void) { return *p == &p; } 17int foo11 (void) { return p != &p; } 18int foo12 (void) { return *p != p; } 19int foo13 (void) { return *p != &p; } 20 21/* { dg-final { scan-tree-dump-not "= 0;" "gimple" } } */ 22/* { dg-final { scan-tree-dump-not "= 1;" "gimple" } } */ 23/* { dg-final { cleanup-tree-dump "gimple" } } */ 24