/* { dg-do run } */
|
/* { dg-do run } */
|
/* { dg-options "-O -fdump-tree-forwprop1" } */
|
/* { dg-options "-O -fdump-tree-forwprop1" } */
|
|
|
struct Value
|
struct Value
|
{
|
{
|
double value;
|
double value;
|
Value(double value_) : value (value_) {}
|
Value(double value_) : value (value_) {}
|
operator double() const { return value; }
|
operator double() const { return value; }
|
Value& operator=(double other) { value = other; }
|
Value& operator=(double other) { value = other; }
|
};
|
};
|
|
|
struct Ref
|
struct Ref
|
{
|
{
|
const Value& m;
|
const Value& m;
|
Ref(const Value& m_) : m(m_) {}
|
Ref(const Value& m_) : m(m_) {}
|
operator double() const { return m; }
|
operator double() const { return m; }
|
};
|
};
|
|
|
struct Diff
|
struct Diff
|
{
|
{
|
const Ref lhs, rhs;
|
const Ref lhs, rhs;
|
Diff(const Value& lhs_, const Value& rhs_) : lhs(lhs_), rhs(rhs_) {}
|
Diff(const Value& lhs_, const Value& rhs_) : lhs(lhs_), rhs(rhs_) {}
|
operator double() const { return lhs - rhs; }
|
operator double() const { return lhs - rhs; }
|
};
|
};
|
|
|
extern "C" void abort (void);
|
extern "C" void abort (void);
|
int main(int argc, char *argv[])
|
int main(int argc, char *argv[])
|
{
|
{
|
Value I(1), m(4);
|
Value I(1), m(4);
|
for(int a = 0; a < 1000; a++)
|
for(int a = 0; a < 1000; a++)
|
m = Diff (I, m);
|
m = Diff (I, m);
|
|
|
if (!(m / 4 == I))
|
if (!(m / 4 == I))
|
abort ();
|
abort ();
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Check that we forward propagated
|
/* Check that we forward propagated
|
D.2182_13 = (struct Ref *) &D.2137.lhs;
|
D.2182_13 = (struct Ref *) &D.2137.lhs;
|
to
|
to
|
D.2182_13->lhs.m ={v} &I;
|
D.2182_13->lhs.m ={v} &I;
|
yielding
|
yielding
|
D.2137.lhs.m ={v} &I; */
|
D.2137.lhs.m ={v} &I; */
|
|
|
/* { dg-final { scan-tree-dump-times "D\\\.....\\\..hs\\\.m =" 2 "forwprop1" } } */
|
/* { dg-final { scan-tree-dump-times "D\\\.....\\\..hs\\\.m =" 2 "forwprop1" } } */
|
/* { dg-final { cleanup-tree-dump "forwprop1" } } */
|
/* { dg-final { cleanup-tree-dump "forwprop1" } } */
|
|
|
