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/* { dg-do compile } */
/* { dg-options "-O2 -fno-tree-fre -fdump-tree-vrp1" } */
struct foo1 {
int i:1;
};
struct foo2 {
unsigned i:1;
};
int test1 (struct foo1 *x)
{
int i = x->i;
if (i == 0)
return 1;
else if (i == -1)
return 1;
return 0;
}
int test2 (struct foo2 *x)
{
if (x->i == 0)
return 1;
else if (x->i == -1) /* This test is already folded to false by ccp1. */
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)
{
unsigned int i = x->i;
if (i == 0)
return 1;
else if (i == 1)
return 1;
return 0;
}
/* { dg-final { scan-tree-dump-times "if" 2 "vrp1" } } */
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