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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-vrp" } */
struct foo1 {
int i:1;
};
struct foo2 {
unsigned i:1;
};
int test1 (struct foo1 *x)
{
if (x->i == 0)
return 1;
else if (x->i == -1)
return 1;
return 0;
}
int test2 (struct foo2 *x)
{
if (x->i == 0)
return 1;
else if (x->i == -1)
return 1;
return 0;
}
int test3 (struct foo1 *x)
{
if (x->i == 0)
return 1;
else if (x->i == 1) /* This test is already folded to false by fold. */
return 1;
return 0;
}
int test4 (struct foo2 *x)
{
if (x->i == 0)
return 1;
else if (x->i == 1)
return 1;
return 0;
}
/* { dg-final { scan-tree-dump-times "Folding" 3 "vrp" } } */
/* { dg-final { cleanup-tree-dump "vrp" } } */
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