Viewing file:  alias-18.c (1.43 KB) -rw-r--r--
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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-fre1-details -fdump-tree-optimized" } */
struct A {
int i;
int j;
float x;
};
struct B {
struct A a;
int k;
};
int g;
int test0 (struct A *p, struct A *q)
{
p->i = 0;
q->j = -1;
return p->i;
}
int test1 (struct A *p, struct B *q)
{
p->i = 1;
q->k = -1;
return p->i;
}
int test2 (struct A *p, struct B *q)
{
p->i = 2;
q->a.i = -1;
return p->i;
}
int test3 (struct A *p, struct B *q)
{
p->i = 3;
q->a.j = -1;
return p->i;
}
int test4 (struct A *p)
{
g = 4;
p->i = -1;
return g;
}
int test5 (struct A *p)
{
p->i = 5;
g = -1;
return p->i;
}
int test6 (struct A *p, int *q)
{
p->i = 6;
*q = -1;
return p->i;
}
int test7 (struct A *p, int *q)
{
p->j = 7;
*q = -1;
return p->j;
}
int test8 (struct A *p, int *q)
{
*q = 8;
p->x = -1;
return *q;
}
/* { dg-final { scan-tree-dump "with 0" "fre1" } } */
/* { dg-final { scan-tree-dump "with 1" "fre1" } } */
/* { dg-final { scan-tree-dump "with 3" "fre1" } } */
/* { dg-final { scan-tree-dump "with 4" "fre1" } } */
/* { dg-final { scan-tree-dump "with 5" "fre1" } } */
/* { dg-final { scan-tree-dump "with 8" "fre1" } } */
/* { dg-final { scan-tree-dump-not "return 2;" "optimized" } } */
/* { dg-final { scan-tree-dump-not "return 6;" "optimized" } } */
/* { dg-final { scan-tree-dump-not "return 7;" "optimized" } } */
/* { dg-final { scan-tree-dump-not "return -1;" "optimized" } } */
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