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// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
// SPDX-FileCopyrightText: Bradley M. Bell <bradbell@seanet.com>
// SPDX-FileContributor: 2023-23 Bradley M. Bell
# include <cppad/local/val_graph/tape.hpp>
# include "../atomic_xam.hpp"
namespace { // BEGIN_EMPTY_NAMESPACE
// ---------------------------------------------------------------------------
//
// result_not_used
bool result_not_used(void)
{ bool ok = true;
//
// tape_t, Vector, addr_t, op_enum_t
using CppAD::local::val_graph::tape_t;
using CppAD::local::val_graph::Vector;
using CppAD::local::val_graph::addr_t;
using CppAD::local::val_graph::op_enum_t;
//
// add_op_enum;
op_enum_t add_op_enum = CppAD::local::val_graph::add_op_enum;
op_enum_t sub_op_enum = CppAD::local::val_graph::sub_op_enum;
//
// atomic_xam
val_atomic_xam atomic_xam;
//
// f
tape_t<double> tape;
addr_t n_ind = 2;
addr_t index_of_nan = tape.set_ind(n_ind);
ok &= index_of_nan == n_ind;
//
// n_dep
size_t n_dep = 1;
//
// fun_arg, op_arg
Vector<addr_t> fun_arg(4), op_arg(2);
//
// dep_vec
Vector<addr_t> dep_vec(n_dep);
//
// atomic_index
addr_t atomic_index = addr_t( atomic_xam.atomic_index() );
//
// add = x[0] + x[1]
op_arg[0] = 0;
op_arg[1] = 1;
addr_t add = tape.record_op(add_op_enum, op_arg);
//
// sub = x[0] - x[1]
op_arg[0] = 0;
op_arg[1] = 1;
addr_t sub = tape.record_op(sub_op_enum, op_arg);
//
// g_0(x) = 3.0 + 3.0
// g_1(x) = (x[0] + x[1]) * (x[0] - x[1])
fun_arg[0] = tape.record_con_op(3.0);
fun_arg[1] = tape.record_con_op(3.0);
fun_arg[2] = add;
fun_arg[3] = sub;
addr_t call_id = 0;
addr_t n_fun_res = 2;
addr_t res_index = tape.record_call_op(
atomic_index, call_id, n_fun_res, fun_arg
);
//
// dep_vec
// f(x) = g_1(x) = (x[0] + x[1]) * (x[0] - x[1])
dep_vec[0] = res_index + 1;
//
// set_dep
tape.set_dep( dep_vec );
//
// x
Vector<double> x(n_ind);
for(addr_t i = 0; i < n_ind; ++i)
x[i] = 2.0 + double(n_ind - i);
//
// trace
bool trace = false;
//
// val_vec
Vector<double> val_vec( tape.n_val() );
for(addr_t i = 0; i < n_ind; ++i)
val_vec[i] = x[i];
tape.eval(trace, val_vec);
//
// ok
// before optmizing
ok &= tape.arg_vec().size() == 1 + 2 + 2 + 2 + 4 + 5;
ok &= tape.con_vec().size() == 3;
ok &= tape.n_op() == 6;
//
// renumber
tape.renumber();
val_vec.resize( tape.n_val() );
tape.eval(trace, val_vec);
//
// dead_code
tape.dead_code();
val_vec.resize( tape.n_val() );
tape.eval(trace, val_vec);
//
// ok
// after optimizing
ok &= tape.arg_vec().size() == 1 + 2 + 2 + 4 + 5;
ok &= tape.con_vec().size() == 1;
ok &= tape.n_op() == 4;
//
// y
Vector<double> y(n_dep);
dep_vec = tape.dep_vec();
for(size_t i = 0; i < n_dep; ++i)
y[i] = val_vec[ dep_vec[i] ];
//
// ok
ok &= y[0] == (x[0] + x[1]) * (x[0] - x[1]);
//
return ok;
}
// ---------------------------------------------------------------------------
//
// ident_zero
bool ident_zero(void)
{ bool ok = true;
//
// tape_t, Vector, addr_t, op_enum_t
using CppAD::local::val_graph::tape_t;
using CppAD::local::val_graph::Vector;
using CppAD::local::val_graph::addr_t;
using CppAD::local::val_graph::op_enum_t;
//
// add_op_enum;
op_enum_t add_op_enum = CppAD::local::val_graph::add_op_enum;
op_enum_t sub_op_enum = CppAD::local::val_graph::sub_op_enum;
//
// atomic_xam
val_atomic_xam atomic_xam;
//
// f
tape_t<double> tape;
addr_t n_ind = 2;
addr_t index_of_nan = tape.set_ind(n_ind);
ok &= index_of_nan == n_ind;
//
// n_dep
size_t n_dep = 2;
//
// fun_arg, op_arg
Vector<addr_t> fun_arg(4), op_arg(2);
//
// dep_vec
Vector<addr_t> dep_vec(n_dep);
//
// atomic_index
addr_t atomic_index = addr_t( atomic_xam.atomic_index() );
//
// add = x[0] + x[1]
op_arg[0] = 0;
op_arg[1] = 1;
addr_t add = tape.record_op(add_op_enum, op_arg);
//
// sub = x[0] - x[1]
op_arg[0] = 0;
op_arg[1] = 1;
addr_t sub = tape.record_op(sub_op_enum, op_arg);
//
// f_0(x) = (x[0] + x[1]) + 3.0
// f_1(x) = (x[0] - x[1]) * 0.0
fun_arg[0] = add;
fun_arg[1] = tape.record_con_op(3.0);
fun_arg[2] = sub;
fun_arg[3] = tape.record_con_op(0.0);
addr_t call_id = 0;
addr_t n_fun_res = 2;
addr_t res_index = tape.record_call_op(
atomic_index, call_id, n_fun_res, fun_arg
);
//
// dep_vec
dep_vec[0] = res_index + 0;
dep_vec[1] = res_index + 1;
//
// set_dep
tape.set_dep( dep_vec );
//
// x
Vector<double> x(n_ind);
for(addr_t i = 0; i < n_ind; ++i)
x[i] = 2.0 + double(n_ind - i);
//
// trace
bool trace = false;
//
// val_vec
Vector<double> val_vec( tape.n_val() );
for(addr_t i = 0; i < n_ind; ++i)
val_vec[i] = x[i];
tape.eval(trace, val_vec);
//
// ok
// before optmizing
ok &= tape.arg_vec().size() == 1 + 2 + 2 + 2 + 4 + 5;
ok &= tape.con_vec().size() == 3;
ok &= tape.n_op() == 6;
//
// dead_code
tape.dead_code();
val_vec.resize( tape.n_val() );
tape.eval(trace, val_vec);
//
// ok
// after optimizing the subtract operator has been removd
ok &= tape.arg_vec().size() == 1 + 2 + 2 + 4 + 5;
ok &= tape.con_vec().size() == 3;
ok &= tape.n_op() == 5;
//
// y
Vector<double> y(n_dep);
dep_vec = tape.dep_vec();
for(size_t i = 0; i < n_dep; ++i)
y[i] = val_vec[ dep_vec[i] ];
//
// ok
ok &= y[0] == (x[0] + x[1]) + 3.0;
ok &= y[1] == 0.0;
//
return ok;
}
// ---------------------------------------------------------------------------
} // END_EMPTY_NAMESPACE
//
// test_opt_call
bool test_opt_call(void)
{ bool ok = true;
ok &= result_not_used();
ok &= ident_zero();
return ok;
}
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