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rewrite_low_precision_test.cpp
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/*
* The MIT License (MIT)
*
* Copyright (c) 2015-2024 Advanced Micro Devices, Inc. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <migraphx/rewrite_low_precision.hpp>
#include <migraphx/dead_code_elimination.hpp>
#include <migraphx/instruction.hpp>
#include <migraphx/make_op.hpp>
#include <migraphx/pass_manager.hpp>
#include <migraphx/program.hpp>
#include <migraphx/register_target.hpp>
#include <migraphx/common.hpp>
#include <migraphx/verify.hpp>
#include <basic_ops.hpp>
#include <test.hpp>
void run_pass(migraphx::module& m)
{
migraphx::run_passes(m, {migraphx::rewrite_low_precision{}, migraphx::dead_code_elimination{}});
}
template <migraphx::shape::type_t DType, typename T>
void create_pow2_div(migraphx::module& m, const std::vector<std::size_t>& input_lens, T divisor)
{
migraphx::shape s_input{DType, input_lens};
migraphx::shape s_lit{DType, {1}};
auto l_pow_2 = m.add_literal(migraphx::literal{s_lit, {2.0f}});
auto l_div = m.add_literal(migraphx::literal{s_lit, {divisor}});
auto input = m.add_parameter("input", s_input);
auto pow = add_common_op(m, migraphx::make_op("pow"), {input, l_pow_2});
auto div = add_common_op(m, migraphx::make_op("div"), {pow, l_div});
m.add_return({div});
}
TEST_CASE(simplify_pow2_div)
{
migraphx::module m1;
{
auto x = m1.add_parameter("x", {migraphx::shape::half_type, {1}});
auto n = m1.add_literal(migraphx::half{5.0f});
auto two = m1.add_literal(migraphx::half{2.0f});
auto pow = m1.add_instruction(migraphx::make_op("pow"), x, two);
auto div = m1.add_instruction(migraphx::make_op("div"), pow, n);
m1.add_instruction(pass_op{}, div);
}
run_pass(m1);
migraphx::module m2;
{
auto x = m2.add_parameter("x", {migraphx::shape::half_type, {1}});
auto n = m2.add_literal(migraphx::half{5.0f});
auto x_div_n = m2.add_instruction(migraphx::make_op("div"), x, n);
auto mul = m2.add_instruction(migraphx::make_op("mul"), x_div_n, x);
m2.add_instruction(pass_op{}, mul);
}
EXPECT(m1 == m2);
}
TEST_CASE(no_simplify_float_pow2_div)
{
migraphx::module m1;
{
auto x = m1.add_parameter("x", {migraphx::shape::float_type, {1}});
auto n = m1.add_literal(5.0f);
auto two = m1.add_literal(2.0f);
auto pow = m1.add_instruction(migraphx::make_op("pow"), x, two);
auto div = m1.add_instruction(migraphx::make_op("div"), pow, n);
m1.add_instruction(pass_op{}, div);
}
auto m2 = m1;
run_pass(m1);
EXPECT(m1 == m2);
}
TEST_CASE(no_simplify_int_pow2_div)
{
migraphx::module m1;
{
auto x = m1.add_parameter("x", {migraphx::shape::int32_type, {1}});
auto n = m1.add_literal(5);
auto two = m1.add_literal(2);
auto pow = m1.add_instruction(migraphx::make_op("pow"), x, two);
auto div = m1.add_instruction(migraphx::make_op("div"), pow, n);
m1.add_instruction(pass_op{}, div);
}
auto m2 = m1;
run_pass(m1);
EXPECT(m1 == m2);
}
TEST_CASE(simplify_x_square_div)
{
migraphx::module m1;
{
auto x = m1.add_parameter("x", {migraphx::shape::half_type, {1}});
auto n = m1.add_literal(migraphx::half{5.0f});
auto pow = m1.add_instruction(migraphx::make_op("mul"), x, x);
auto div = m1.add_instruction(migraphx::make_op("div"), pow, n);
m1.add_instruction(pass_op{}, div);
}
run_pass(m1);
migraphx::module m2;
{
auto x = m2.add_parameter("x", {migraphx::shape::half_type, {1}});
auto n = m2.add_literal(migraphx::half{5.0f});
auto x_div_n = m2.add_instruction(migraphx::make_op("div"), x, n);
auto mul = m2.add_instruction(migraphx::make_op("mul"), x_div_n, x);
m2.add_instruction(pass_op{}, mul);
}
EXPECT(m1 == m2);
}
TEST_CASE(no_simplify_x_mul_y_div)
{
migraphx::module m1;
{
auto x = m1.add_parameter("x", {migraphx::shape::half_type, {1}});
auto y = m1.add_parameter("y", {migraphx::shape::half_type, {1}});
auto n = m1.add_literal(migraphx::half{5.0f});
auto pow = m1.add_instruction(migraphx::make_op("mul"), x, y);
auto div = m1.add_instruction(migraphx::make_op("div"), pow, n);
m1.add_instruction(pass_op{}, div);
}
auto m2 = m1;
run_pass(m1);
EXPECT(m1 == m2);
}
TEST_CASE(rewrite_pow2_div_fp16_accuracy_test)
{
migraphx::program p;
auto* mm = p.get_main_module();
migraphx::shape s_input{migraphx::shape::half_type, {1, 3, 9}};
create_pow2_div<migraphx::shape::half_type, migraphx::half>(
*mm, s_input.lens(), migraphx::half{9.0});
run_pass(*mm);
p.compile(migraphx::make_target("ref"));
// >>> np.random.seed(0)
// >>> d = (np.sqrt(np.finfo(np.float16).max) * np.random.randn(27)).astype(np.float16)
std::vector<float> tmp = {451.5, 102.4, 250.4, 573.5, 477.8, -250., 243.1, -38.72, -26.4,
105.06, 36.84, 372., 194.8, 31.14, 113.56, 85.4, 382.2, -52.5,
80.1, -218.5, -653., 167.2, 221.2, -189.9, 581., -372.2, 11.71};
std::vector<migraphx::half> data = {tmp.begin(), tmp.end()};
migraphx::parameter_map params;
params["input"] = migraphx::argument(s_input, data.data());
auto result = p.eval(params).back();
std::vector<migraphx::half> results_vector;
result.visit([&](auto output) { results_vector.assign(output.begin(), output.end()); });
// The fp16 results without the rewrite should have `inf` values:
// >>> (pow(d, 2) / 9.0)
// inf, 1164., 6964., inf, inf, 6944., 6568., 166.5, 77.5,
// 1227., 150.8, inf, 4212., 107.75, 1433., 810., inf, 306.2,
// 713.5, 5304., inf, 3108., 5440., 4008., inf, inf, 15.234
// Expected results with rewrite:
// >>> (pow(d.astype(np.float32), 2) / 9.0) .astype(np.float16)
tmp = {22656., 1165., 6964., 36544., 25360., 6944., 6568., 166.6, 77.5,
1226., 150.9, 15376., 4216., 107.75, 1433., 810., 16232., 306.2,
713.5, 5304., 47392., 3108., 5440., 4006., 37504., 15400., 15.24};
std::vector<migraphx::half> gold = {tmp.begin(), tmp.end()};
EXPECT(migraphx::verify::verify_rms_range(results_vector, gold));
}
TEST_CASE(rewrite_pow2_div_fp16_same_result_test)
{
migraphx::shape s_input{migraphx::shape::half_type, {1, 3, 9}};
// >>> np.random.seed(42)
// >>> d = (100 * np.random.randn(27)).astype(np.float16)
std::vector<float> tmp{49.66, -13.83, 64.75, 152.2, -23.42, -23.4, 157.9, 76.75, -46.94,
54.25, -46.34, -46.56, 24.2, -191.4, -172.5, -56.22, -101.3, 31.42,
-90.8, -141.2, 146.6, -22.58, 6.754, -142.5, -54.44, 11.09, -115.1};
std::vector<migraphx::half> data = {tmp.begin(), tmp.end()};
migraphx::parameter_map params;
params["input"] = migraphx::argument(s_input, data.data());
migraphx::program p1;
auto* mm = p1.get_main_module();
create_pow2_div<migraphx::shape::half_type, migraphx::half>(
*mm, s_input.lens(), migraphx::half{9.0f});
run_pass(*mm);
p1.compile(migraphx::make_target("ref"));
auto result1 = p1.eval(params).back();
std::vector<migraphx::half> rewrite_results;
result1.visit([&](auto output) { rewrite_results.assign(output.begin(), output.end()); });
migraphx::program p2;
mm = p2.get_main_module();
create_pow2_div<migraphx::shape::half_type, migraphx::half>(
*mm, s_input.lens(), migraphx::half{9.0f});
p2.compile(migraphx::make_target("ref"));
auto result2 = p2.eval(params).back();
std::vector<migraphx::half> no_rewrite_results;
result2.visit([&](auto output) { no_rewrite_results.assign(output.begin(), output.end()); });
EXPECT(migraphx::verify::verify_rms_range(rewrite_results, no_rewrite_results));
}
int main(int argc, const char* argv[]) { test::run(argc, argv); }