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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/testkit/test_kit.h>
#include <vespa/eval/eval/function.h>
#include <vespa/eval/eval/llvm/compiled_function.h>
#include <vespa/eval/eval/test/eval_spec.h>
#include <vespa/eval/eval/basic_nodes.h>
#include <vespa/vespalib/util/stringfmt.h>
#include <cmath>
#include <vespa/vespalib/test/insertion_operators.h>
#include <iostream>
using namespace vespalib::eval;
//-----------------------------------------------------------------------------
std::vector<vespalib::string> params_10({"p1", "p2", "p3", "p4", "p5", "p6", "p7", "p8", "p9", "p10"});
const char *expr_10 = "p1 + p2 + p3 + p4 + p5 + p6 + p7 + p8 + p9 + p10";
TEST("require that separate parameter passing works") {
CompiledFunction cf_10(*Function::parse(params_10, expr_10), PassParams::SEPARATE);
auto fun_10 = cf_10.get_function<10>();
EXPECT_EQUAL(10.0, fun_10(1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0));
EXPECT_EQUAL(50.0, fun_10(5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0));
EXPECT_EQUAL(45.0, fun_10(0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0));
EXPECT_EQUAL(45.0, fun_10(9.0, 8.0, 7.0, 6.0, 5.0, 4.0, 3.0, 2.0, 1.0, 0.0));
}
TEST("require that array parameter passing works") {
CompiledFunction arr_cf(*Function::parse(params_10, expr_10), PassParams::ARRAY);
auto arr_fun = arr_cf.get_function();
EXPECT_EQUAL(10.0, arr_fun(&std::vector<double>({1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0})[0]));
EXPECT_EQUAL(50.0, arr_fun(&std::vector<double>({5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0})[0]));
EXPECT_EQUAL(45.0, arr_fun(&std::vector<double>({0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0})[0]));
EXPECT_EQUAL(45.0, arr_fun(&std::vector<double>({9.0, 8.0, 7.0, 6.0, 5.0, 4.0, 3.0, 2.0, 1.0, 0.0})[0]));
}
double my_resolve(void *ctx, size_t idx) { return ((double *)ctx)[idx]; }
TEST("require that lazy parameter passing works") {
CompiledFunction lazy_cf(*Function::parse(params_10, expr_10), PassParams::LAZY);
auto lazy_fun = lazy_cf.get_lazy_function();
EXPECT_EQUAL(10.0, lazy_fun(my_resolve, &std::vector<double>({1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0})[0]));
EXPECT_EQUAL(50.0, lazy_fun(my_resolve, &std::vector<double>({5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0})[0]));
EXPECT_EQUAL(45.0, lazy_fun(my_resolve, &std::vector<double>({0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0})[0]));
EXPECT_EQUAL(45.0, lazy_fun(my_resolve, &std::vector<double>({9.0, 8.0, 7.0, 6.0, 5.0, 4.0, 3.0, 2.0, 1.0, 0.0})[0]));
}
//-----------------------------------------------------------------------------
std::vector<vespalib::string> unsupported = {
"map(",
"join(",
"merge(",
"reduce(",
"rename(",
"tensor(",
"concat(",
"cell_cast("
};
bool is_unsupported(const vespalib::string &expression) {
if (expression.find("{") != vespalib::string::npos) {
return true;
}
for (const auto &prefix: unsupported) {
if (starts_with(expression, prefix)) {
return true;
}
}
return false;
}
//-----------------------------------------------------------------------------
struct MyEvalTest : test::EvalSpec::EvalTest {
size_t pass_cnt = 0;
size_t fail_cnt = 0;
bool print_pass = false;
bool print_fail = false;
~MyEvalTest() override;
virtual void next_expression(const std::vector<vespalib::string> ¶m_names,
const vespalib::string &expression) override
{
auto function = Function::parse(param_names, expression);
ASSERT_TRUE(!function->has_error());
bool is_supported = !is_unsupported(expression);
bool has_issues = CompiledFunction::detect_issues(*function);
if (is_supported == has_issues) {
const char *supported_str = is_supported ? "supported" : "not supported";
const char *issues_str = has_issues ? "has issues" : "does not have issues";
print_fail && fprintf(stderr, "expression %s is %s, but %s\n",
expression.c_str(), supported_str, issues_str);
++fail_cnt;
}
}
virtual void handle_case(const std::vector<vespalib::string> ¶m_names,
const std::vector<double> ¶m_values,
const vespalib::string &expression,
double expected_result) override
{
auto function = Function::parse(param_names, expression);
ASSERT_TRUE(!function->has_error());
bool is_supported = !is_unsupported(expression);
bool has_issues = CompiledFunction::detect_issues(*function);
if (is_supported && !has_issues) {
CompiledFunction cfun(*function, PassParams::ARRAY);
auto fun = cfun.get_function();
ASSERT_EQUAL(cfun.num_params(), param_values.size());
double result = fun(param_values.data());
if (is_same(expected_result, result)) {
print_pass && fprintf(stderr, "verifying: %s -> %g ... PASS\n",
as_string(param_names, param_values, expression).c_str(),
expected_result);
++pass_cnt;
} else {
print_fail && fprintf(stderr, "verifying: %s -> %g ... FAIL: got %g\n",
as_string(param_names, param_values, expression).c_str(),
expected_result, result);
++fail_cnt;
}
}
}
};
MyEvalTest::~MyEvalTest() = default;
TEST_FF("require that compiled evaluation passes all conformance tests", MyEvalTest(), test::EvalSpec()) {
f1.print_fail = true;
f2.add_all_cases();
f2.each_case(f1);
EXPECT_GREATER(f1.pass_cnt, 1000u);
EXPECT_EQUAL(0u, f1.fail_cnt);
}
//-----------------------------------------------------------------------------
TEST("require that large (plugin) set membership checks work") {
auto my_in = std::make_unique<nodes::In>(std::make_unique<nodes::Symbol>(0));
for(size_t i = 1; i <= 100; ++i) {
my_in->add_entry(std::make_unique<nodes::Number>(i));
}
auto my_fun = Function::create(std::move(my_in), {"a"});
CompiledFunction cf(*my_fun, PassParams::SEPARATE);
CompiledFunction arr_cf(*my_fun, PassParams::ARRAY);
auto fun = cf.get_function<1>();
auto arr_fun = arr_cf.get_function();
for (double value = 0.5; value <= 100.5; value += 0.5) {
if (std::round(value) == value) {
EXPECT_EQUAL(1.0, fun(value));
EXPECT_EQUAL(1.0, arr_fun(&value));
} else {
EXPECT_EQUAL(0.0, fun(value));
EXPECT_EQUAL(0.0, arr_fun(&value));
}
}
}
//-----------------------------------------------------------------------------
CompiledFunction pass_fun(CompiledFunction cf) {
auto fun = cf.get_function<2>();
EXPECT_EQUAL(5.0, fun(2.0, 3.0));
return cf;
}
TEST("require that compiled expression can be passed (moved) around") {
CompiledFunction cf(*Function::parse("a+b"), PassParams::SEPARATE);
auto fun = cf.get_function<2>();
EXPECT_EQUAL(4.0, fun(2.0, 2.0));
CompiledFunction cf2 = pass_fun(std::move(cf));
EXPECT_TRUE(cf.get_function<2>() == nullptr);
auto fun2 = cf2.get_function<2>();
EXPECT_TRUE(fun == fun2);
EXPECT_EQUAL(10.0, fun(3.0, 7.0));
}
TEST("require that expressions with constant sub-expressions evaluate correctly") {
CompiledFunction cf(*Function::parse("if(1,2,10)+a+b+max(1,2)/1"), PassParams::SEPARATE);
auto fun = cf.get_function<2>();
EXPECT_EQUAL(7.0, fun(1.0, 2.0));
EXPECT_EQUAL(11.0, fun(3.0, 4.0));
}
TEST("dump ir code to verify lazy casting") {
auto function = Function::parse({"a", "b"}, "12==2+if(a==3&&a<10||b,10,5)");
LLVMWrapper wrapper;
size_t id = wrapper.make_function(function->num_params(), PassParams::SEPARATE, function->root(), {});
wrapper.compile(llvm::dbgs()); // dump module before compiling it
using fun_type = double (*)(double, double);
fun_type fun = (fun_type) wrapper.get_function_address(id);
EXPECT_EQUAL(0.0, fun(0.0, 0.0));
EXPECT_EQUAL(1.0, fun(0.0, 1.0));
EXPECT_EQUAL(1.0, fun(3.0, 0.0));
}
TEST_MT("require that multithreaded compilation works", 32) {
for (size_t i = 0; i < 16; ++i) {
{
CompiledFunction cf(*Function::parse({"x", "y", "z", "w"}, "((x+1)*(y-1))/((z+1)/(w-1))"),
PassParams::SEPARATE);
auto fun = cf.get_function<4>();
EXPECT_EQUAL(1.0, fun(0.0, 2.0, 0.0, 2.0));
}
{
CompiledFunction cf(*Function::parse({"x", "y", "z", "w"}, "((x+1)*(y-1))/((z+1)/(w-1))"),
PassParams::SEPARATE);
auto fun = cf.get_function<4>();
EXPECT_EQUAL(4.0, fun(1.0, 3.0, 0.0, 2.0));
}
{
CompiledFunction cf(*Function::parse({"x", "y", "z", "w"}, "((x+1)*(y-1))/((z+1)/(w-1))"),
PassParams::SEPARATE);
auto fun = cf.get_function<4>();
EXPECT_EQUAL(2.0, fun(1.0, 3.0, 1.0, 2.0));
}
{
CompiledFunction cf(*Function::parse({"x", "y", "z", "w"}, "((x+1)*(y-1))/((z+1)/(w-1))"),
PassParams::SEPARATE);
auto fun = cf.get_function<4>();
EXPECT_EQUAL(8.0, fun(1.0, 3.0, 1.0, 5.0));
}
}
}
//-----------------------------------------------------------------------------
TEST("require that function issues can be detected") {
auto simple = Function::parse("a+b");
auto complex = Function::parse("join(a,b,f(a,b)(a+b))");
EXPECT_FALSE(simple->has_error());
EXPECT_FALSE(complex->has_error());
EXPECT_FALSE(CompiledFunction::detect_issues(*simple));
EXPECT_TRUE(CompiledFunction::detect_issues(*complex));
std::cerr << "Example function issues:" << std::endl
<< CompiledFunction::detect_issues(*complex).list
<< std::endl;
}
//-----------------------------------------------------------------------------
TEST_MAIN() { TEST_RUN_ALL(); }
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