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/* { dg-do compile } */
/* { dg-options "-O2 -fno-tree-ccp -fdump-tree-alias" } */
extern void abort (void);
struct X {
int *p;
int *q;
int *r;
};
int __attribute__((noinline))
foo(int i, int j, int k, int off)
{
struct X x;
int **p, *q;
x.p = &i;
x.q = &j;
x.r = &k;
p = &x.q;
p -= 1;
/* *p points to { i } */
q = *p;
return *q;
}
/* { dg-final { scan-tree-dump "q_., points-to vars: { i }" "alias" } } */
/* { dg-final { cleanup-tree-dump "alias" } } */
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