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69 lines
2.5 KiB
C++
69 lines
2.5 KiB
C++
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2015-2024 Advanced Micro Devices, Inc. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <migraphx/rewrite_low_precision.hpp>
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#include <migraphx/make_op.hpp>
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#include <migraphx/matcher.hpp>
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#include <migraphx/common.hpp>
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namespace migraphx {
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inline namespace MIGRAPHX_INLINE_NS {
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struct find_pow2_div
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{
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auto pow2() const
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{
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auto pow2 = match::name("pow")(match::arg(0)(match::any().bind("x")),
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match::arg(1)(match::has_value(2.0f)));
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auto x_square =
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match::name("mul")(match::same_inputs(), match::arg(0)(match::any().bind("x")));
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return match::any_of(pow2, x_square);
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}
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auto matcher() const
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{
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return match::name("div")(match::arg(0)(pow2()),
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match::arg(1)(match::is_constant().bind("n")));
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}
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void apply(module& m, const match::matcher_result& r) const
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{
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auto ins = r.result;
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auto n = r.instructions["n"];
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auto x = r.instructions["x"];
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if(x->get_shape().type() != migraphx::shape::half_type)
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return;
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auto x_div_n = m.insert_instruction(ins, make_op("div"), {x, n});
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auto mul = m.insert_instruction(ins, make_op("mul"), {x_div_n, x});
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m.replace_instruction(ins, mul);
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}
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};
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void rewrite_low_precision::apply(module& m) const { match::find_matches(m, find_pow2_div{}); }
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} // namespace MIGRAPHX_INLINE_NS
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} // namespace migraphx
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