Merge branch 'develop' into perk-kernel

src/insert_pad.cpp

@@ -40,6 +40,12 @@ static void update_op(const instruction_ref& input, const instruction_ref& ins,
     auto val        = op.to_value();
     auto op_padding = val.at("padding").to_vector<size_t>();
 
+    // skip if shape is dynamic
+    if(input->get_shape().dynamic())
+    {
+        return;
+    }
+
     auto kdims = input->get_shape().lens().size() - 2;
     if(std::equal(op_padding.begin(),
                   op_padding.begin() + kdims,

src/instruction.cpp

@@ -445,8 +445,8 @@ operation instruction::normalized_operator() const
     operation o = this->get_operator();
     if(this->need_normalization())
     {
-        auto lens = this->inputs().front()->get_shape().lens();
-        if(!normalize_attributes(o, lens))
+        auto s = this->inputs().front()->get_shape();
+        if(!normalize_attributes(o, s.max_lens()))
             return this->get_operator();
     }
     return o;

src/normalize_ops.cpp

@@ -43,9 +43,9 @@ void normalize_ops::apply(module& m) const
         if(inputs.empty())
             continue;
 
-        auto lens                    = inputs[0]->get_shape().lens();
+        auto s                       = inputs[0]->get_shape();
         migraphx::operation tuned_op = ins->get_operator();
-        if(normalize_attributes(tuned_op, lens))
+        if(normalize_attributes(tuned_op, s.max_lens()))
         {
             m.replace_instruction(ins, tuned_op, inputs);
             ins->set_normalized();

src/onnx/include/migraphx/onnx/onnx_parser.hpp

@@ -93,9 +93,10 @@ struct onnx_parser
         onnx_parser&, const node_info&, std::vector<instruction_ref>)>;
     node_map nodes;
     std::unordered_map<std::string, instruction_ref> instructions;
-    program prog                  = program();
-    std::size_t default_dim_value = 1;
+    program prog                                   = program();
+    shape::dynamic_dimension default_dyn_dim_value = {1, 1, 0};
     std::unordered_map<std::string, std::vector<std::size_t>> map_input_dims;
+    std::unordered_map<std::string, std::vector<shape::dynamic_dimension>> map_dyn_input_dims;
     bool skip_unknown_operators = false;
     int64_t max_loop_iterations = 10;
     int64_t opset_version       = 13;
@@ -118,6 +119,7 @@ struct onnx_parser
 };
 
 shape::type_t get_type(int dtype);
+bool is_type_float(shape::type_t dtype);
 
 } // namespace onnx
 } // namespace MIGRAPHX_INLINE_NS

src/onnx/onnx.cpp

@@ -41,8 +41,25 @@ template <class... Ts>
 program parse_onnx_from(const onnx_options& options, Ts&&... xs)
 {
     onnx::onnx_parser parser;
-    parser.map_input_dims         = options.map_input_dims;
-    parser.default_dim_value      = options.default_dim_value;
+    parser.map_input_dims     = options.map_input_dims;
+    parser.map_dyn_input_dims = options.map_dyn_input_dims;
+    auto dim_val              = options.default_dim_value;
+    if(dim_val != 0)
+    {
+        if(options.default_dyn_dim_value != shape::dynamic_dimension{1, 1, 0})
+        {
+            MIGRAPHX_THROW("PARSE_ONNX_FROM: both default_dim_value and default_dyn_dim_value"
+                           "set to non-default value");
+        }
+        else
+        {
+            parser.default_dyn_dim_value = {dim_val, dim_val, 0};
+        }
+    }
+    else
+    {
+        parser.default_dyn_dim_value = options.default_dyn_dim_value;
+    }
     parser.skip_unknown_operators = options.skip_unknown_operators;
     parser.max_loop_iterations    = options.max_loop_iterations;
 

src/onnx/onnx_parser.cpp

@@ -28,16 +28,17 @@
 #include <migraphx/stringutils.hpp>
 #include <migraphx/ranges.hpp>
 #include <migraphx/instruction.hpp>
-#include <migraphx/pad_calc.hpp>
 #include <migraphx/common.hpp>
 #include <migraphx/type_traits.hpp>
 #include <migraphx/float_equal.hpp>
 #include <migraphx/file_buffer.hpp>
 #include <migraphx/filesystem.hpp>
 #include <migraphx/op/unknown.hpp>
+#include <migraphx/env.hpp>
 
 namespace migraphx {
 inline namespace MIGRAPHX_INLINE_NS {
+
 namespace onnx {
 
 static onnx_parser::attribute_map get_attributes(const onnx::NodeProto& node)
@@ -58,7 +59,7 @@ create_literal(shape::type_t shape_type, const std::vector<size_t>& dims, const
         std::accumulate(dims.begin(), dims.end(), std::size_t(1), std::multiplies<std::size_t>());
     if(elem_num == 0)
     {
-        return {};
+        return literal{shape_type};
     }
 
     // in case of scalar constants in onnx file, use dims=1 to fill initializer data
@@ -75,7 +76,7 @@ static literal create_literal(shape::type_t shape_type, const std::vector<size_t
         std::accumulate(dims.begin(), dims.end(), std::size_t(1), std::multiplies<std::size_t>());
     if(elem_num == 0)
     {
-        return {};
+        return literal{shape_type};
     }
 
     // scalar input
@@ -255,6 +256,11 @@ int64_t onnx_parser::get_opset_version(const onnx::ModelProto& model)
 
 void onnx_parser::parse_graph(module* mod, const onnx::GraphProto& graph)
 {
+    if(not map_input_dims.empty() and not map_dyn_input_dims.empty())
+    {
+        MIGRAPHX_THROW("PARSE_GRAPH: both map_input_dims and map_dyn_input_dims non-empty, only"
+                       "one should be used");
+    }
     std::unordered_map<std::string, instruction_ref> mod_insts;
     for(auto&& f : graph.initializer())
     {
@@ -268,7 +274,7 @@ void onnx_parser::parse_graph(module* mod, const onnx::GraphProto& graph)
         // input not in initializer_data, so it is a real input
         if(!contains(mod_insts, name))
         {
-            // ONNX specification does not specify hwo to deal with the
+            // ONNX specification does not specify how to deal with the
             // scenario that a nested subgraph contains a parameter with the
             // name existed in its parent graph.
             // In the current implementation, MIGraphX throws an exception for that.
@@ -278,13 +284,22 @@ void onnx_parser::parse_graph(module* mod, const onnx::GraphProto& graph)
                                "\" existing in parent graph!");
             }
 
+            shape s;
             std::vector<std::size_t> dims;
             if(map_input_dims.count(name) > 0)
             {
                 dims = map_input_dims.at(name);
+                s    = parse_type(input.type(), dims);
+            }
+            else if(map_dyn_input_dims.count(name) > 0)
+            {
+                shape::type_t shape_type = get_type(input.type().tensor_type().elem_type());
+                s                        = {shape_type, map_dyn_input_dims.at(name)};
+            }
+            else
+            {
+                s = parse_type(input.type(), dims);
             }
-
-            shape s         = parse_type(input.type(), dims);
             mod_insts[name] = mod->add_parameter(name, s);
         }
     }
@@ -439,30 +454,41 @@ shape onnx_parser::parse_type(const onnx::TypeProto& t,
         return {shape_type, input_dims};
     }
 
-    std::vector<std::size_t> dims;
+    std::vector<shape::dynamic_dimension> dynamic_dims;
     auto&& tensor_dims = t.tensor_type().shape().dim();
     std::transform(tensor_dims.begin(),
                    tensor_dims.end(),
-                   std::back_inserter(dims),
-                   [&](auto&& d) -> std::size_t {
+                   std::back_inserter(dynamic_dims),
+                   [&](auto&& d) -> shape::dynamic_dimension {
                        if(d.has_dim_value())
                        {
                            if(static_cast<int>(d.dim_value()) <= 0)
                            {
-                               return default_dim_value;
+                               return default_dyn_dim_value;
                            }
-                           return d.dim_value();
+                           std::size_t tmp = d.dim_value();
+                           return {tmp, tmp, 0};
                        }
                        else
                        {
-                           return default_dim_value;
+                           return default_dyn_dim_value;
                        }
                    });
 
-    if(dims.empty())
+    if(dynamic_dims.empty())
+    {
         return {shape_type};
-
-    return {shape_type, dims};
+    }
+    if(std::all_of(dynamic_dims.begin(), dynamic_dims.end(), [](auto dd) { return dd.is_fixed(); }))
+    {
+        std::vector<std::size_t> dims;
+        std::transform(dynamic_dims.begin(),
+                       dynamic_dims.end(),
+                       std::back_inserter(dims),
+                       [](auto d) { return d.max; });
+        return {shape_type, dims};
+    }
+    return {shape_type, dynamic_dims};
 }
 
 shape::type_t get_type(int dtype)
@@ -487,6 +513,16 @@ shape::type_t get_type(int dtype)
     }
 }
 
+bool is_type_float(shape::type_t dtype)
+{
+    bool r = false;
+    if(dtype == shape::float_type || dtype == shape::double_type || dtype == shape::half_type)
+    {
+        r = true;
+    }
+    return r;
+}
+
 } // namespace onnx
 } // namespace MIGRAPHX_INLINE_NS
 } // namespace migraphx

src/onnx/parse_constant.cpp

@@ -43,7 +43,7 @@ struct parse_constant : op_parser<parse_constant>
         // return empty literal
         if(v.get_shape().elements() == 0)
         {
-            return info.add_literal(literal{});
+            return info.add_literal(literal{v.get_shape().type()});
         }
 
         auto dim_size = info.attributes.at("value").t().dims_size();

src/onnx/parse_convolution.cpp

@@ -47,15 +47,17 @@ struct parse_convolution : op_parser<parse_convolution>
                           onnx_parser::node_info info,
                           std::vector<instruction_ref> args) const
     {
-        auto op      = make_op(opd.op_name);
-        auto values  = op.to_value();
-        auto l0      = args[0];
-        auto weights = args[1];
-        auto in_lens = l0->get_shape().lens();
+        auto op       = make_op(opd.op_name);
+        auto values   = op.to_value();
+        auto l0       = args[0];
+        auto weights  = args[1];
+        auto l0_shape = l0->get_shape();
+        auto w_shape  = weights->get_shape();
+        auto in_lens  = l0_shape.max_lens();
         assert(in_lens.size() > 2);
         auto kdims = in_lens.size() - 2;
 
-        // ensure pads availabe only when auto_pad is "NOT_SET"
+        // ensure pads available only when auto_pad is "NOT_SET"
         check_padding_mode(info, "CONV");
 
         if(contains(info.attributes, "strides"))
@@ -79,21 +81,65 @@ struct parse_convolution : op_parser<parse_convolution>
             copy(info.attributes["pads"].ints(), std::back_inserter(padding));
             check_attr_sizes(kdims, padding.size() / 2, "PARSE_CONV: inconsistent paddings");
         }
-
         if(contains(info.attributes, "auto_pad"))
         {
-            auto weight_lens = weights->get_shape().lens();
-            std::vector<std::size_t> k_lens(weight_lens.begin() + 2, weight_lens.end());
-            cal_auto_padding_size(info,
-                                  values,
-                                  k_lens,
-                                  values["dilation"].to_vector<std::size_t>(),
-                                  in_lens,
-                                  padding);
-            auto auto_pad = info.attributes["auto_pad"].s();
+            bool is_same_padding = false;
+            auto auto_pad        = info.attributes["auto_pad"].s();
             if(auto_pad.find("SAME") != std::string::npos)
             {
-                values["padding_mode"] = to_value(op::padding_mode_t::same);
+                is_same_padding = true;
+            }
+
+            // check if image shape is dynamic
+            bool image_shape_dynamic = false;
+            if(l0_shape.dynamic())
+            {
+                auto dyn_dims = l0_shape.dyn_dims();
+                std::for_each(dyn_dims.begin() + 2, dyn_dims.end(), [&](auto dyn_dim) {
+                    if(not dyn_dim.is_fixed())
+                    {
+                        image_shape_dynamic = true;
+                    }
+                });
+            }
+
+            // check if kernel shape is dynamic
+            bool kernel_shape_dynamic = false;
+            if(w_shape.dynamic())
+            {
+                auto dyn_dims = w_shape.dyn_dims();
+                std::for_each(dyn_dims.begin() + 2, dyn_dims.end(), [&](auto dyn_dim) {
+                    if(not dyn_dim.is_fixed())
+                    {
+                        kernel_shape_dynamic = true;
+                    }
+                });
+            }
+
+            if(is_same_padding)
+            {
+                if(image_shape_dynamic or kernel_shape_dynamic)
+                {
+                    // must calculate "same" padding with input shape data
+                    bool is_same_upper     = (auto_pad.find("SAME_UPPER") != std::string::npos);
+                    values["padding_mode"] = is_same_upper
+                                                 ? to_value(op::padding_mode_t::same_upper)
+                                                 : to_value(op::padding_mode_t::same_lower);
+                    values["use_dynamic_same_auto_pad"] = true;
+                }
+                else
+                {
+                    values["padding_mode"] = to_value(op::padding_mode_t::same);
+                    // kernel shape will be fixed, so max_lens() == min_len() for kernel lengths
+                    auto weight_lens = weights->get_shape().max_lens();
+                    std::vector<std::size_t> k_lens(weight_lens.begin() + 2, weight_lens.end());
+                    cal_auto_padding_size(info,
+                                          values,
+                                          k_lens,
+                                          values["dilation"].to_vector<std::size_t>(),
+                                          in_lens,
+                                          padding);
+                }
             }
         }
         values["padding"] = std::vector<size_t>(padding.begin(), padding.end());

src/onnx/parse_if.cpp

@@ -47,7 +47,8 @@ struct parse_if : op_parser<parse_if>
 
         if(args.front()->get_shape().elements() != 1)
         {
-            MIGRAPHX_THROW("PARSE_IF: condition input can have only one element!");
+            MIGRAPHX_THROW("PARSE_IF: " + info.name +
+                           " condition input can have only one element!");
         }
 
         std::string then_name = info.name + "_if";
@@ -69,7 +70,8 @@ struct parse_if : op_parser<parse_if>
                           else_out_shapes.begin(),
                           else_out_shapes.end()))
         {
-            MIGRAPHX_THROW("PARSE_IF: then and else sub_grahps must have same output shapes!");
+            MIGRAPHX_THROW("PARSE_IF: " + info.name +
+                           " then and else sub_grahps must have same output shapes!");
         }
 
         auto if_ret = info.add_instruction(make_op("if"), args, {then_mdl, else_mdl});

src/onnx/parse_instancenorm.cpp

@@ -32,9 +32,12 @@ namespace onnx {
 
 struct parse_instancenorm : op_parser<parse_instancenorm>
 {
+    const std::set<shape::type_t> valid_types = {
+        shape::float_type, shape::half_type, shape::double_type};
+
     std::vector<op_desc> operators() const { return {{"InstanceNormalization"}}; }
 
-    instruction_ref parse(const op_desc& /*opd*/,
+    instruction_ref parse(const op_desc& opd,
                           const onnx_parser& parser,
                           onnx_parser::node_info info,
                           std::vector<instruction_ref> args) const
@@ -52,6 +55,11 @@ struct parse_instancenorm : op_parser<parse_instancenorm>
         auto scale = args[1];
         auto bias  = args[2];
         auto dims  = x->get_shape().lens();
+        auto dtype = x->get_shape().type();
+        if(not contains(valid_types, dtype))
+            MIGRAPHX_THROW(opd.op_name + ": invalid output type: " + std::to_string(dtype) +
+                           ". Valid types are 1 (float), 10 (half), and 11 (double).");
+
         auto ndims = dims.size();
         assert(ndims >= 2);
         auto kdims = ndims - 2;
@@ -65,7 +73,7 @@ struct parse_instancenorm : op_parser<parse_instancenorm>
         auto l0              = info.add_instruction(make_op("sqdiff"), x, mean_bcast);
         auto variance        = info.add_instruction(make_op("reduce_mean", {{"axes", axes}}), l0);
         auto l1              = info.add_instruction(make_op("sub"), x, mean_bcast);
-        auto epsilon_literal = info.add_literal(epsilon);
+        auto epsilon_literal = info.add_literal(literal{shape{dtype}, {epsilon}});
         auto epsilon_bcast =
             info.add_instruction(make_op("multibroadcast", {{"out_lens", dims}}), epsilon_literal);
         auto variance_bcast =

src/onnx/parse_mod.cpp

+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015-2022 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/onnx/op_parser.hpp>
+#include <migraphx/ranges.hpp>
+#include <migraphx/instruction.hpp>
+#include <migraphx/make_op.hpp>
+
+namespace migraphx {
+inline namespace MIGRAPHX_INLINE_NS {
+namespace onnx {
+
+struct parse_mod : op_parser<parse_mod>
+{
+    std::vector<op_desc> operators() const { return {{"Mod"}}; }
+
+    instruction_ref parse(const op_desc& /*opd*/,
+                          const onnx_parser& parser,
+                          onnx_parser::node_info info,
+                          std::vector<instruction_ref> args) const
+    {
+        std::string mod = "mod";
+        if(is_type_float(args[0]->get_shape().type()) || is_type_float(args[1]->get_shape().type()))
+        {
+            if(!contains(info.attributes, "fmod"))
+            {
+                MIGRAPHX_THROW("Mod operator with float args and fmod=0 invalid");
+            }
+        }
+
+        if(contains(info.attributes, "fmod"))
+        {
+            if(parser.parse_value(info.attributes.at("fmod")).at<int>() == 1)
+            {
+                mod = "fmod";
+            }
+        }
+        return info.add_common_op(mod, args[0], args[1]);
+    }
+};
+
+} // namespace onnx
+} // namespace MIGRAPHX_INLINE_NS
+} // namespace migraphx

src/pad_calc.cpp

+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015-2022 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/pad_calc.hpp>
+
+namespace migraphx {
+inline namespace MIGRAPHX_INLINE_NS {
+
+void calculate_padding(int64_t idx,
+                       std::vector<int64_t>& pads,
+                       int64_t input_dim,
+                       int64_t stride,
+                       int64_t dilation,
+                       int64_t weight_dim,
+                       bool is_same_upper)
+{
+    int64_t output_dim     = (input_dim + stride - 1) / stride; // round up result
+    int64_t new_weight_dim = weight_dim + (weight_dim - 1) * (dilation - 1);
+    int64_t pad =
+        std::max(static_cast<int64_t>(0), (output_dim - 1) * stride + new_weight_dim - input_dim);
+    auto pad_ndims = pads.size() / 2;
+
+    if(is_same_upper)
+    {
+        pads[idx]             = pad / 2;
+        pads[idx + pad_ndims] = pad - pad / 2;
+    }
+    else
+    {
+        pads[idx + pad_ndims] = pad / 2;
+        pads[idx]             = pad - pad / 2;
+    }
+}
+
+std::vector<std::size_t> calc_dyn_auto_pad(std::vector<std::size_t> tensor_lens,
+                                           std::vector<std::size_t> k_lens,
+                                           std::vector<std::size_t> strides,
+                                           std::vector<std::size_t> dilations,
+                                           bool use_upper)
+{
+    std::vector<std::size_t> padding;
+    padding.resize(2 * k_lens.size());
+    for(size_t i = 0; i < padding.size() / 2; i++)
+    {
+        std::ptrdiff_t input_dim      = tensor_lens[i];
+        std::ptrdiff_t stride         = strides[i];
+        std::ptrdiff_t weight_dim     = k_lens[i];
+        std::ptrdiff_t dilation       = dilations[i];
+        std::ptrdiff_t output_dim     = (input_dim + stride - 1) / stride; // round up result
+        std::ptrdiff_t new_weight_dim = weight_dim + (weight_dim - 1) * (dilation - 1);
+        std::size_t pad               = std::max(static_cast<std::ptrdiff_t>(0),
+                                   (output_dim - 1) * stride + new_weight_dim - input_dim);
+        auto pad_ndims                = padding.size() / 2;
+
+        if(use_upper)
+        {
+            padding[i]             = pad / 2;
+            padding[i + pad_ndims] = pad - pad / 2;
+        }
+        else
+        {
+            padding[i + pad_ndims] = pad / 2;
+            padding[i]             = pad - pad / 2;
+        }
+    }
+    return padding;
+}
+
+} // namespace MIGRAPHX_INLINE_NS
+} // namespace migraphx

src/program.cpp

@@ -159,6 +159,25 @@ instruction_ref program::validate() const
     return mm->validate();
 }
 
+target_assignments program::get_target_assignments(const std::vector<target>& targets,
+                                                   assignment_options options)
+{
+    const auto m = options.metric;
+
+    target_assignments p;
+
+    const auto* mod = get_main_module();
+    for(auto it : iterator_for(*mod))
+    {
+        auto t = std::max_element(
+            targets.begin(), targets.end(), [it, m](const target& lhs, const target& rhs) {
+                return lhs.is_supported(it, m) < rhs.is_supported(it, m);
+            });
+        p.add_assignment(it, t->name());
+    }
+    return p;
+}
+
 bool program::is_compiled() const { return not this->impl->target_name.empty(); }
 
 void program::compile(const target& t, compile_options options)
@@ -288,9 +307,12 @@ std::vector<argument> generic_eval(const module* mod,
                     if(not contains(params, param_name))
                         MIGRAPHX_THROW("Parameter not found: " + param_name);
                     auto param = params[param_name];
-                    if(param.get_shape() != ins->get_shape())
+                    // TODO: may want to check correct number of dimensions and/or was within bounds
+                    if(not ins->get_shape().dynamic() and param.get_shape() != ins->get_shape())
+                    {
                         MIGRAPHX_THROW("Incorrect shape {" + to_string(param.get_shape()) +
                                        "} for parameter: " + param_name);
+                    }
                     return param;
                 }));
         }
@@ -333,7 +355,10 @@ std::vector<argument> generic_eval(const module* mod,
                             }));
         }
         assert(results.find(ins) != results.end());
-        assert(results.at(ins).get_shape() == ins->get_shape());
+        if(not ins->get_shape().dynamic())
+        {
+            assert(results.at(ins).get_shape() == ins->get_shape());
+        }
     }
     return {results.at(std::prev(mod->end()))};
 }
@@ -683,11 +708,13 @@ void program::perf_report(std::ostream& os,
     double overhead_percent       = overhead_time * 100.0 / total_time;
     double total_instruction_time = 0.0;
     std::unordered_map<std::string, double> op_times;
+    std::unordered_map<std::string, std::size_t> op_n;
     for(auto&& p : ins_vec)
     {
         double avg = common_average(p.second);
         op_times[perf_group(p.first->get_operator())] += avg;
         total_instruction_time += avg;
+        op_n[perf_group(p.first->get_operator())]++;
     }
     double calculate_overhead_time    = total_time - total_instruction_time;
     double calculate_overhead_percent = calculate_overhead_time * 100.0 / total_time;
@@ -708,18 +735,19 @@ void program::perf_report(std::ostream& os,
 
     os << std::endl;
     os << "Summary:" << std::endl;
-    std::vector<std::pair<double, std::string>> op_times_sorted;
-    std::transform(op_times.begin(),
-                   op_times.end(),
-                   std::back_inserter(op_times_sorted),
-                   [](auto p) { return std::make_pair(p.second, p.first); });
+    std::vector<std::tuple<double, std::size_t, std::string>> op_times_sorted;
+    std::transform(
+        op_times.begin(), op_times.end(), std::back_inserter(op_times_sorted), [&](auto p) {
+            auto&& name = p.first;
+            return std::make_tuple(p.second, op_n.at(name), name);
+        });
     std::sort(op_times_sorted.begin(), op_times_sorted.end(), std::greater<>{});
-    for(auto&& p : op_times_sorted)
+    for(auto&& [avg, nn, name] : op_times_sorted)
     {
-        auto&& name    = p.second;
-        double avg     = p.first;
         double percent = std::ceil(100.0 * avg / total_instruction_time);
-        os << name << ": " << avg << "ms, " << percent << "%" << std::endl;
+        double per_ins = avg / nn;
+        os << name << ": " << avg << "ms / " << nn << " = " << per_ins << "ms, " << percent << "%"
+           << std::endl;
     }
 
     os << std::endl;

src/shape.cpp

@@ -26,6 +26,7 @@
 #include <migraphx/stringutils.hpp>
 #include <migraphx/serialize.hpp>
 #include <migraphx/permutation.hpp>
+#include <migraphx/ranges.hpp>
 #include <numeric>
 #include <algorithm>
 #include <functional>
@@ -65,13 +66,21 @@ struct shape_impl
                      std::is_sorted(m_strides.rbegin(), m_strides.rend());
     }
 
+    shape_impl(shape::type_t t, std::vector<shape::dynamic_dimension> dims)
+        : m_type(t), m_dyn_dims(std::move(dims))
+    {
+    }
+
     shape_impl(const std::vector<shape>& subs) : m_type(shape::tuple_type), m_shapes(subs) {}
+
     shape::type_t m_type;
     std::vector<std::size_t> m_lens    = {};
     std::vector<std::size_t> m_strides = {};
     std::vector<shape> m_shapes        = {};
     bool m_standard                    = false;
 
+    std::vector<shape::dynamic_dimension> m_dyn_dims = {};
+
     void calculate_strides()
     {
         m_strides.clear();
@@ -87,6 +96,12 @@ struct shape_impl
 
     std::size_t element_space() const
     {
+        if(not m_dyn_dims.empty())
+        {
+            auto maxes = max_lens();
+            return std::accumulate(maxes.begin(), maxes.end(), std::size_t{1}, std::multiplies<>());
+        }
+
         assert(m_lens.size() == m_strides.size());
         if(m_lens.empty())
             return 0;
@@ -101,6 +116,11 @@ struct shape_impl
 
     std::size_t elements() const
     {
+        if(not m_dyn_dims.empty())
+        {
+            MIGRAPHX_THROW("SHAPE: elements() called on dynamic shape");
+        }
+
         assert(m_lens.size() == m_strides.size());
         if(m_lens.empty())
             return 0;
@@ -108,6 +128,35 @@ struct shape_impl
             m_lens.begin(), m_lens.end(), std::size_t{1}, std::multiplies<std::size_t>());
     }
 
+    std::vector<std::size_t> min_lens() const
+    {
+        std::vector<std::size_t> ret(m_dyn_dims.size());
+        std::transform(m_dyn_dims.cbegin(),
+                       m_dyn_dims.cend(),
+                       ret.begin(),
+                       [](shape::dynamic_dimension x) { return x.min; });
+        return ret;
+    }
+
+    std::vector<std::size_t> max_lens() const
+    {
+        std::vector<std::size_t> ret(m_dyn_dims.size());
+        std::transform(m_dyn_dims.cbegin(),
+                       m_dyn_dims.cend(),
+                       ret.begin(),
+                       [](shape::dynamic_dimension x) { return x.max; });
+        return ret;
+    }
+
+    std::vector<std::size_t> opt_lens() const
+    {
+        std::vector<std::size_t> ret(m_dyn_dims.size());
+        std::transform(m_dyn_dims.cbegin(),
+                       m_dyn_dims.cend(),
+                       ret.begin(),
+                       [](shape::dynamic_dimension x) { return x.opt; });
+        return ret;
+    }
     // Does the shape skip over elements?
     bool skips() const
     {
@@ -165,6 +214,16 @@ shape::shape(type_t t, std::vector<std::size_t> l, std::vector<std::size_t> s)
 {
 }
 
+shape::shape(type_t t, std::initializer_list<std::size_t> d)
+    : shape::shape(t, std::vector<std::size_t>{d.begin(), d.end()})
+{
+}
+
+shape::shape(type_t t, std::vector<shape::dynamic_dimension> dims)
+    : impl(std::make_shared<shape_impl>(t, std::move(dims)))
+{
+}
+
 shape::shape(const std::vector<shape>& subs) : impl(std::make_shared<shape_impl>(subs)) {}
 
 shape::shape(std::shared_ptr<shape_impl> pimpl) : impl(std::move(pimpl)) {}
@@ -180,9 +239,13 @@ shape shape::from_permutation(type_t t,
 }
 
 shape::type_t shape::type() const { return impl->m_type; }
+
 const std::vector<std::size_t>& shape::lens() const { return impl->m_lens; }
+
 const std::vector<std::size_t>& shape::strides() const { return impl->m_strides; }
+
 std::size_t shape::elements() const { return impl->elements(); }
+
 std::size_t shape::bytes() const
 {
     if(this->sub_shapes().empty())
@@ -199,6 +262,7 @@ std::size_t shape::bytes() const
                                [&](auto x, auto y) { return x + y.bytes(); });
     }
 }
+
 std::size_t shape::type_size() const
 {
     std::size_t n = 0;
@@ -206,20 +270,35 @@ std::size_t shape::type_size() const
         this->visit_type([&](auto as) { n = as.size(); });
     return n;
 }
+
 std::size_t shape::index(std::initializer_list<std::size_t> l) const
 {
+    if(this->dynamic())
+    {
+        MIGRAPHX_THROW("SHAPE: index() called on dynamic shape");
+    }
     assert(l.size() <= this->lens().size());
     assert(this->lens().size() == this->strides().size());
     return std::inner_product(l.begin(), l.end(), this->strides().begin(), std::size_t{0});
 }
+
 std::size_t shape::index(const std::vector<std::size_t>& l) const
 {
+    if(this->dynamic())
+    {
+        MIGRAPHX_THROW("SHAPE: index() called on dynamic shape");
+    }
     assert(l.size() <= this->lens().size());
     assert(this->lens().size() == this->strides().size());
     return std::inner_product(l.begin(), l.end(), this->strides().begin(), std::size_t{0});
 }
+
 std::size_t shape::index(std::size_t i) const
 {
+    if(this->dynamic())
+    {
+        MIGRAPHX_THROW("SHAPE: index() called on dynamic shape");
+    }
     assert(this->lens().size() == this->strides().size());
     if(this->standard())
         return i;
@@ -267,12 +346,20 @@ void shape::multi_copy(std::size_t i, std::size_t* start, const std::size_t* end
 
 bool shape::packed() const
 {
+    if(this->dynamic())
+    {
+        return false;
+    }
     return this->sub_shapes().empty() and not impl->skips() and
            this->elements() == this->element_space();
 }
 
 bool shape::transposed() const
 {
+    if(this->dynamic())
+    {
+        return false;
+    }
     if(this->broadcasted())
     {
         // TODO: Use a filter_iterator instead
@@ -292,6 +379,10 @@ bool shape::transposed() const
 
 bool shape::broadcasted() const
 {
+    if(this->dynamic())
+    {
+        return false;
+    }
     assert(this->lens().size() == this->strides().size());
     return std::any_of(
         this->strides().begin(), this->strides().end(), [](auto x) { return x == 0; });
@@ -299,6 +390,10 @@ bool shape::broadcasted() const
 
 bool shape::scalar() const
 {
+    if(this->dynamic())
+    {
+        return false;
+    }
     assert(this->lens().size() == this->strides().size());
     // if any stride > 0, then accumulate will return false
     return this->sub_shapes().empty() and
@@ -317,6 +412,10 @@ shape shape::normalize_standard() const
 
 shape shape::with_lens(type_t t, const std::vector<std::size_t>& l) const
 {
+    if(this->dynamic())
+    {
+        MIGRAPHX_THROW("SHAPE: with_lens() called on dynamic shape");
+    }
     assert(l.size() == this->lens().size());
     auto perm = find_permutation(*this);
     return shape::from_permutation(t, l, perm);
@@ -324,6 +423,10 @@ shape shape::with_lens(type_t t, const std::vector<std::size_t>& l) const
 
 shape shape::with_lens(const std::vector<std::size_t>& l) const
 {
+    if(this->dynamic())
+    {
+        MIGRAPHX_THROW("SHAPE: with_lens() called on dynamic shape");
+    }
     return this->with_lens(this->type(), l);
 }
 
@@ -338,20 +441,80 @@ std::size_t shape::element_space() const { return impl->element_space(); }
 
 std::string shape::type_string() const { return name(this->type()); }
 
+bool shape::dynamic() const { return not impl->m_dyn_dims.empty(); }
+
+const std::vector<shape::dynamic_dimension>& shape::dyn_dims() const { return impl->m_dyn_dims; }
+
+std::vector<std::size_t> shape::min_lens() const
+{
+    return this->dynamic() ? impl->min_lens() : this->lens();
+}
+
+std::vector<std::size_t> shape::max_lens() const
+{
+    return this->dynamic() ? impl->max_lens() : this->lens();
+}
+
+std::vector<std::size_t> shape::opt_lens() const
+{
+    return this->dynamic() ? impl->opt_lens() : this->lens();
+}
+
+bool shape::dynamic_dimension::is_fixed() const { return this->min == this->max; }
+
+bool shape::dynamic_dimension::has_optimal() const { return opt != 0; }
+
+template <class Self, class F>
+auto shape::dynamic_dimension::reflect(Self& self, F f)
+{
+    return pack(f(self.min, "min"), f(self.max, "max"), f(self.opt, "opt"));
+}
+
+bool operator==(const shape::dynamic_dimension& x, const shape::dynamic_dimension& y)
+{
+    return (x.min == y.min and x.max == y.max and x.opt == y.opt);
+}
+
+bool operator!=(const shape::dynamic_dimension& x, const shape::dynamic_dimension& y)
+{
+    return !(x == y);
+}
+std::ostream& operator<<(std::ostream& os, const shape::dynamic_dimension& x)
+{
+    os << "[" << x.min << ", " << x.max << ", " << x.opt << "]";
+    return os;
+}
+
 bool operator==(const shape& x, const shape& y)
 {
-    return x.impl == y.impl or (x.type() == y.type() and x.lens() == y.lens() and
-                                x.strides() == y.strides() and x.sub_shapes() == y.sub_shapes());
+    if(x.dynamic() and y.dynamic())
+    {
+        return x.impl == y.impl or (x.type() == y.type() and x.dyn_dims() == y.dyn_dims() and
+                                    x.sub_shapes() == y.sub_shapes());
+    }
+    return x.impl == y.impl or
+           (x.dynamic() == y.dynamic() and x.type() == y.type() and x.lens() == y.lens() and
+            x.strides() == y.strides() and x.sub_shapes() == y.sub_shapes());
 }
+
 bool operator!=(const shape& x, const shape& y) { return !(x == y); }
 
 std::ostream& operator<<(std::ostream& os, const shape& x)
 {
     if(x.sub_shapes().empty())
     {
-        os << x.type_string() << ", ";
-        os << "{" << to_string_range(x.lens()) << "}, ";
-        os << "{" << to_string_range(x.strides()) << "}";
+        if(x.dynamic())
+        {
+            os << "dynamic, ";
+            os << x.type_string() << ", ";
+            os << "{" << to_string_range(x.dyn_dims()) << "}";
+        }
+        else
+        {
+            os << x.type_string() << ", ";
+            os << "{" << to_string_range(x.lens()) << "}, ";
+            os << "{" << to_string_range(x.strides()) << "}";
+        }
     }
     else
     {
@@ -375,12 +538,14 @@ const std::vector<shape>& shape::sub_shapes() const { return impl->m_shapes; }
 void migraphx_to_value(value& v, const shape& s)
 {
     value result;
-    result["type"]       = migraphx::to_value(s.type_string());
-    result["lens"]       = migraphx::to_value(s.lens());
-    result["strides"]    = migraphx::to_value(s.strides());
-    result["sub_shapes"] = migraphx::to_value(s.sub_shapes());
-    v                    = result;
+    result["type"]               = migraphx::to_value(s.type_string());
+    result["lens"]               = migraphx::to_value(s.lens());
+    result["strides"]            = migraphx::to_value(s.strides());
+    result["sub_shapes"]         = migraphx::to_value(s.sub_shapes());
+    result["dynamic_dimensions"] = migraphx::to_value(s.dyn_dims());
+    v                            = result;
 }
+
 void migraphx_from_value(const value& v, shape& s)
 {
     auto t = v.at("type").get_string();
@@ -390,9 +555,25 @@ void migraphx_from_value(const value& v, shape& s)
     }
     else
     {
-        s = shape{shape::parse_type(t),
-                  v.at("lens").to_vector<std::size_t>(),
-                  v.at("strides").to_vector<std::size_t>()};
+        if(v.at("dynamic_dimensions").empty())
+        {
+            s = shape{shape::parse_type(t),
+                      v.at("lens").to_vector<std::size_t>(),
+                      v.at("strides").to_vector<std::size_t>()};
+        }
+        else
+        {
+            auto v_dd = v.at("dynamic_dimensions");
+            std::vector<shape::dynamic_dimension> dyn_dims(v.at("dynamic_dimensions").size());
+            std::transform(v_dd.begin(), v_dd.end(), dyn_dims.begin(), [](migraphx::value x) {
+                auto x_min = x.at("min").template to<size_t>();
+                auto x_max = x.at("max").template to<size_t>();
+                auto x_opt = x.at("opt").template to<size_t>();
+                return shape::dynamic_dimension{x_min, x_max, x_opt};
+            });
+
+            s = shape{shape::parse_type(t), dyn_dims};
+        }
     }
 }
 

src/simplify_reshapes.cpp

@@ -272,7 +272,7 @@ struct find_concat_transpose
 {
     auto matcher() const
     {
-        return match::name("concat")(match::all_of[match::inputs()](match::transpose_shape()));
+        return match::name("concat")(match::all_of[match::inputs()](match::name("transpose")));
     }
 
     void apply(module& m, const match::matcher_result& mr) const

src/sqlite.cpp

+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015-2022 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/sqlite.hpp>
+#include <migraphx/manage_ptr.hpp>
+#include <migraphx/errors.hpp>
+#include <sqlite3.h>
+#include <algorithm>
+
+namespace migraphx {
+inline namespace MIGRAPHX_INLINE_NS {
+
+using sqlite3_ptr = MIGRAPHX_MANAGE_PTR(sqlite3*, sqlite3_close);
+
+struct sqlite_impl
+{
+    sqlite3* get() const { return ptr.get(); }
+    void open(const fs::path& p, int flags)
+    {
+        sqlite3* ptr_tmp = nullptr;
+        int rc           = sqlite3_open_v2(p.string().c_str(), &ptr_tmp, flags, nullptr);
+        ptr              = sqlite3_ptr{ptr_tmp};
+        if(rc != 0)
+            MIGRAPHX_THROW("error opening " + p.string() + ": " + error_message());
+    }
+
+    template <class F>
+    void exec(const char* sql, F f)
+    {
+        auto callback = [](void* obj, auto... xs) -> int {
+            try
+            {
+                const auto* g = static_cast<const F*>(obj);
+                (*g)(xs...);
+                return 0;
+            }
+            catch(...)
+            {
+                return -1;
+            }
+        };
+        int rc = sqlite3_exec(get(), sql, callback, &f, nullptr);
+        if(rc != 0)
+            MIGRAPHX_THROW(error_message());
+    }
+
+    std::string error_message() const
+    {
+        std::string msg = "sqlite3: ";
+        return msg + sqlite3_errmsg(get());
+    }
+    sqlite3_ptr ptr;
+};
+
+sqlite sqlite::read(const fs::path& p)
+{
+    sqlite r;
+    r.impl = std::make_shared<sqlite_impl>();
+    r.impl->open(p, SQLITE_OPEN_READONLY);
+    return r;
+}
+
+sqlite sqlite::write(const fs::path& p)
+{
+    sqlite r;
+    r.impl = std::make_shared<sqlite_impl>();
+    // Using '+' instead of bitwise '|' to avoid compilation warning
+    r.impl->open(p, SQLITE_OPEN_READWRITE + SQLITE_OPEN_CREATE);
+    return r;
+}
+
+std::vector<std::unordered_map<std::string, std::string>> sqlite::execute(const std::string& s)
+{
+    std::vector<std::unordered_map<std::string, std::string>> result;
+    impl->exec(s.c_str(), [&](int n, char** texts, char** names) {
+        std::unordered_map<std::string, std::string> row;
+        row.reserve(n);
+        std::transform(
+            names,
+            names + n,
+            texts,
+            std::inserter(row, row.begin()),
+            [&](const char* name, const char* text) { return std::make_pair(name, text); });
+        result.push_back(row);
+    });
+    return result;
+}
+
+} // namespace MIGRAPHX_INLINE_NS
+} // namespace migraphx

src/target_assignments.cpp

+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015-2022 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/target_assignments.hpp>
+
+namespace migraphx {
+inline namespace MIGRAPHX_INLINE_NS {
+
+void target_assignments::add_assignment(instruction_ref ins, const std::string& target)
+{
+    assignments.emplace(ins, target);
+}
+
+} // namespace MIGRAPHX_INLINE_NS
+} // namespace migraphx

src/targets/fpga/CMakeLists.txt

+#####################################################################################
+# The MIT License (MIT)
+#
+# Copyright (c) 2015-2022 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.
+#####################################################################################
+
+add_library(migraphx_fpga
+    target.cpp
+    lowering.cpp
+    subgraph.cpp
+    vitis_ai_adapter.cpp
+)
+
+set_target_properties(migraphx_fpga PROPERTIES EXPORT_NAME fpga)
+rocm_set_soversion(migraphx_fpga ${MIGRAPHX_SO_VERSION})
+
+rocm_clang_tidy_check(migraphx_fpga)
+target_link_libraries(migraphx_fpga migraphx)
+
+rocm_install_targets(
+    TARGETS migraphx_fpga
+    INCLUDE
+    ${CMAKE_CURRENT_SOURCE_DIR}/include
+)

src/targets/fpga/include/migraphx/fpga/context.hpp

+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015-2022 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.
+ */
+
+#ifndef MIGRAPHX_GUARD_FPGA_CONTEXT_HPP
+#define MIGRAPHX_GUARD_FPGA_CONTEXT_HPP
+
+#include <migraphx/config.hpp>
+
+namespace migraphx {
+inline namespace MIGRAPHX_INLINE_NS {
+namespace fpga {
+
+struct context
+{
+    int id = 0;
+
+    void finish() const {}
+};
+
+} // namespace fpga
+} // namespace MIGRAPHX_INLINE_NS
+} // namespace migraphx
+
+#endif // MIGRAPHX_GUARD_FPGA_CONTEXT_HPP

src/targets/fpga/include/migraphx/fpga/lowering.hpp

+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015-2022 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.
+ */
+
+#ifndef MIGRAPHX_GUARD_FPGA_LOWERING_HPP
+#define MIGRAPHX_GUARD_FPGA_LOWERING_HPP
+
+#include <migraphx/program.hpp>
+#include <migraphx/config.hpp>
+#include <migraphx/fpga/context.hpp>
+
+namespace migraphx {
+inline namespace MIGRAPHX_INLINE_NS {
+namespace fpga {
+
+struct lowering
+{
+    context* ctx = nullptr;
+    std::string name() const { return "fpga::lowering"; }
+    void apply(module& m) const;
+};
+
+} // namespace fpga
+} // namespace MIGRAPHX_INLINE_NS
+} // namespace migraphx
+
+#endif // MIGRAPHX_GUARD_FPGA_LOWERING_HPP