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test_simple_circuit_identities.cpp
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//
// This file is part of the MQT QCEC library released under the MIT license.
// See README.md or go to https://github.com/cda-tum/qcec for more information.
//
#include "Configuration.hpp"
#include "Definitions.hpp"
#include "EquivalenceCheckingManager.hpp"
#include "checker/dd/applicationscheme/ApplicationScheme.hpp"
#include "checker/dd/applicationscheme/GateCostApplicationScheme.hpp"
#include "ir/QuantumComputation.hpp"
#include <gtest/gtest.h>
#include <iostream>
#include <memory>
#include <sstream>
#include <string>
#include <utility>
class SimpleCircuitIdentitiesTest
: public testing::TestWithParam<
std::pair<std::string, std::pair<std::string, std::string>>> {
protected:
qc::QuantumComputation qcOriginal;
qc::QuantumComputation qcAlternative;
ec::Configuration config{};
std::unique_ptr<ec::EquivalenceCheckingManager> ecm;
void SetUp() override {
const auto [circ1, circ2] = GetParam().second;
std::stringstream ss1{circ1};
qcOriginal.import(ss1, qc::Format::OpenQASM2);
std::stringstream ss2{circ2};
qcAlternative.import(ss2, qc::Format::OpenQASM2);
config.optimizations.reconstructSWAPs = false;
config.optimizations.fuseSingleQubitGates = false;
config.optimizations.reorderOperations = false;
config.optimizations.elidePermutations = false;
config.execution.runZXChecker = true;
EXPECT_NO_THROW(ecm = std::make_unique<ec::EquivalenceCheckingManager>(
qcOriginal, qcAlternative, config););
}
void TearDown() override { std::cout << ecm->getResults() << "\n"; }
};
INSTANTIATE_TEST_SUITE_P(
TestCircuits, SimpleCircuitIdentitiesTest,
testing::Values(
std::pair{
"Reverse_CNOT_Direction",
std::pair{"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg q[2];\ncx "
"q[0], q[1];\n",
"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg q[2];\nh "
"q[0]; h q[1]; cx q[1], q[0]; h q[0]; h q[1];\n"}},
std::pair{"T_T_is_S",
std::pair{"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg "
"q[1];\nt q[0]; t q[0];\n",
"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg "
"q[1];\ns q[0];\n"}},
std::pair{"Sdag_from_Clifford",
std::pair{"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg "
"q[1];\nsdg q[0];\n",
"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg "
"q[1];\ns q[0]; s q[0]; s q[0];\n"}},
std::pair{
"X_from_Clifford",
std::pair{
"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg q[1];\nx q[0];\n",
"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg q[1];\nh q[0]; s "
"q[0]; s q[0]; h q[0];\n"}},
std::pair{"CZ_from_CX_and_H",
std::pair{"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg "
"q[2];\ncz q[0], q[1];\n",
"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg "
"q[2];\nh q[1]; cx q[0], q[1]; h q[1];\n"}},
std::pair{
"CS_from_CX_and_T",
std::pair{
"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg q[2];\ncs q[0], "
"q[1];\n",
"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg q[2];\nt q[0]; "
"cx q[0], q[1]; tdg q[1]; cx q[0], q[1]; t q[1];\n"}},
std::pair{
"iSWAP_decomposition",
std::pair{
"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg q[2];\niswap "
"q[0], q[1];\n",
"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg q[2];\ns q[0]; s "
"q[1]; h q[0]; cx q[0],q[1]; cx q[1],q[0]; h q[1];\n"}},
std::pair{
"dcx_decomposition",
std::pair{"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg q[2];\ndcx "
"q[0], q[1];\n",
"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg q[2];\ncx "
"q[0],q[1];\ncx q[1],q[0];\n"}},
std::pair{"Global_Phase",
std::pair{"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg "
"q[1];\nz q[0]; x q[0]; z q[0];\n",
"OPENQASM 2.0;\ninclude \"qelib1.inc\";\nqreg "
"q[1];\n x q[0];\n"}}),
[](const testing::TestParamInfo<SimpleCircuitIdentitiesTest::ParamType>&
inf) {
std::stringstream ss{};
ss << inf.param.first;
return ss.str();
});
TEST_P(SimpleCircuitIdentitiesTest, DefaultOptionsParallel) {
EXPECT_NO_THROW(ecm->run(););
EXPECT_TRUE(ecm->getResults().consideredEquivalent());
}
TEST_P(SimpleCircuitIdentitiesTest, DefaultOptionsSequential) {
ecm->setParallel(false);
EXPECT_NO_THROW(ecm->run(););
EXPECT_TRUE(ecm->getResults().consideredEquivalent());
}
TEST_P(SimpleCircuitIdentitiesTest, DefaultOptionsOnlySimulation) {
ecm->setAlternatingChecker(false);
ecm->setConstructionChecker(false);
ecm->setZXChecker(false);
EXPECT_NO_THROW(ecm->run(););
EXPECT_TRUE(ecm->getResults().consideredEquivalent());
}
TEST_P(SimpleCircuitIdentitiesTest, DefaultOptionsOnlyConstruction) {
ecm->setAlternatingChecker(false);
ecm->setSimulationChecker(false);
ecm->setConstructionChecker(true);
ecm->setZXChecker(false);
EXPECT_NO_THROW(ecm->run(););
EXPECT_TRUE(ecm->getResults().consideredEquivalent());
}
TEST_P(SimpleCircuitIdentitiesTest, DefaultOptionsOnlyZX) {
ecm->setAlternatingChecker(false);
ecm->setSimulationChecker(false);
ecm->setConstructionChecker(false);
ecm->setZXChecker(true);
EXPECT_NO_THROW(ecm->run(););
EXPECT_TRUE(ecm->getResults().consideredEquivalent());
}
TEST_P(SimpleCircuitIdentitiesTest, SequentialZX) {
ecm->setAlternatingChecker(false);
ecm->setSimulationChecker(false);
ecm->setConstructionChecker(false);
ecm->setZXChecker(true);
ecm->setParallel(false);
EXPECT_NO_THROW(ecm->run(););
EXPECT_TRUE(ecm->getResults().consideredEquivalent());
}
TEST_P(SimpleCircuitIdentitiesTest, GateCostApplicationScheme) {
ecm->setSimulationChecker(false);
ecm->setAlternatingApplicationScheme(ec::ApplicationSchemeType::GateCost);
ecm->setGateCostFunction(&ec::legacyCostFunction);
EXPECT_NO_THROW(ecm->run(););
EXPECT_TRUE(ecm->getResults().consideredEquivalent());
}
TEST_P(SimpleCircuitIdentitiesTest, ReorderingOperations) {
ecm->reorderOperations();
EXPECT_NO_THROW(ecm->run(););
EXPECT_TRUE(ecm->getResults().consideredEquivalent());
}
TEST_P(SimpleCircuitIdentitiesTest, FuseSingleQubitGates) {
ecm->fuseSingleQubitGates();
EXPECT_NO_THROW(ecm->run(););
EXPECT_TRUE(ecm->getResults().consideredEquivalent());
}
TEST_P(SimpleCircuitIdentitiesTest, ReconstructSWAPs) {
ecm->reconstructSWAPs();
EXPECT_NO_THROW(ecm->run(););
EXPECT_TRUE(ecm->getResults().consideredEquivalent());
}
TEST_P(SimpleCircuitIdentitiesTest, BackpropagateOutputPermutation) {
ecm->backpropagateOutputPermutation();
EXPECT_NO_THROW(ecm->run(););
EXPECT_TRUE(ecm->getResults().consideredEquivalent());
}
TEST_P(SimpleCircuitIdentitiesTest, ElidePermutations) {
ecm->elidePermutations();
EXPECT_NO_THROW(ecm->run(););
EXPECT_TRUE(ecm->getResults().consideredEquivalent());
}