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/* { dg-do run } */
/* { dg-options "-fdump-tree-alias" } */
/* { dg-skip-if "" { *-*-* } { "-O0" } { "" } } */
struct Foo {
int *p;
};
void __attribute__((noinline))
foo (void *p)
{
struct Foo *f = (struct Foo *)p - 1;
*f->p = 0;
}
int bar (void)
{
struct Foo f;
int i = 1;
f.p = &i;
foo (&f + 1);
return i;
}
extern void abort (void);
int main()
{
if (bar () != 0)
abort ();
return 0;
}
/* { dg-final { scan-tree-dump "ESCAPED = {\[^\n\}\]* i f \[^\n\}\]*}" "alias" } } */
/* { dg-final { cleanup-tree-dump "alias" } } */
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