23087278095

Committed 14 Mar 2026 11:44AM UTC coverage: 63.927% (+0.3%) from 63.617%

Build # 23087278095

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push

github

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web-flow

Commit Message

Merge pull request #568 from daisytuner/dead-data-elimination

Working on memory ownership & escape analysis

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475 of 637 new or added lines in 28 files covered. (74.57%)

6 existing lines in 3 files now uncovered.

26010 of 40687 relevant lines covered (63.93%)

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38.46

/sdfg/src/data_flow/library_nodes/call_node.cpp

#include "sdfg/data_flow/library_nodes/call_node.h"

namespace sdfg {
namespace data_flow {

CallNode::CallNode(
    size_t element_id,
    const DebugInfo& debug_info,
    const graph::Vertex vertex,
    data_flow::DataFlowGraph& parent,
    const std::string& callee_name,
    const std::vector<std::string>& outputs,
    const std::vector<std::string>& inputs
)
    : LibraryNode(
          element_id,
          debug_info,
          vertex,
          parent,
          LibraryNodeType_Call,
          outputs,
          inputs,
          true,
          data_flow::ImplementationType_NONE
      ),
      callee_name_(callee_name) {}

const std::string& CallNode::callee_name() const { return this->callee_name_; }

bool CallNode::is_void(const Function& sdfg) const { return outputs_.empty() || outputs_.at(0) != "_ret"; }

bool CallNode::is_indirect_call(const Function& sdfg) const {
    auto& type = sdfg.type(this->callee_name_);
    return dynamic_cast<const types::Pointer*>(&type) != nullptr;
}

void CallNode::validate(const Function& function) const {
    LibraryNode::validate(function);

    if (!function.exists(this->callee_name_)) {
        throw InvalidSDFGException("CallNode: Function '" + this->callee_name_ + "' does not exist.");
    }
    auto& type = function.type(this->callee_name_);
    if (!dynamic_cast<const types::Function*>(&type) && !dynamic_cast<const types::Pointer*>(&type)) {
        throw InvalidSDFGException("CallNode: '" + this->callee_name_ + "' is not a function or pointer.");
    }

    if (auto func_type = dynamic_cast<const types::Function*>(&type)) {
        if (!function.is_external(this->callee_name_)) {
            throw InvalidSDFGException("CallNode: Function '" + this->callee_name_ + "' must be declared.");
        }
        if (!func_type->is_var_arg() && inputs_.size() != func_type->num_params()) {
            throw InvalidSDFGException(
                "CallNode: Number of inputs does not match number of function parameters. Expected " +
                std::to_string(func_type->num_params()) + ", got " + std::to_string(inputs_.size())
            );
        }
        if (!this->is_void(function) && outputs_.size() < 1) {
            throw InvalidSDFGException(
                "CallNode: Non-void function must have at least one output to store the return value."
            );
        }
    }
}

symbolic::SymbolSet CallNode::symbols() const { return {symbolic::symbol(this->callee_name_)}; }

std::unique_ptr<data_flow::DataFlowNode> CallNode::
    clone(size_t element_id, const graph::Vertex vertex, data_flow::DataFlowGraph& parent) const {
    return std::make_unique<CallNode>(element_id, debug_info_, vertex, parent, callee_name_, outputs_, inputs_);
}

std::string CallNode::toStr() const { return LibraryNode::toStr() + "('" + callee_name_ + "')"; }

void CallNode::replace(const symbolic::Expression old_expression, const symbolic::Expression new_expression) {}

nlohmann::json CallNodeSerializer::serialize(const data_flow::LibraryNode& library_node) {
    const CallNode& node = static_cast<const CallNode&>(library_node);

    nlohmann::json j;
    j["code"] = node.code().value();
    j["callee_name"] = node.callee_name();
    j["outputs"] = node.outputs();
    j["inputs"] = node.inputs();

    return j;
}

data_flow::LibraryNode& CallNodeSerializer::deserialize(
    const nlohmann::json& j, builder::StructuredSDFGBuilder& builder, structured_control_flow::Block& parent
) {
    assert(j.contains("code"));
    assert(j.contains("callee_name"));
    assert(j.contains("outputs"));
    assert(j.contains("inputs"));
    assert(j.contains("debug_info"));

    auto code = j["code"].get<std::string>();
    if (code != LibraryNodeType_Call.value()) {
        throw InvalidSDFGException("Invalid library node code");
    }

    sdfg::serializer::JSONSerializer serializer;
    DebugInfo debug_info = serializer.json_to_debug_info(j["debug_info"]);

    std::string callee_name = j["callee_name"].get<std::string>();
    auto outputs = j["outputs"].get<std::vector<std::string>>();
    auto inputs = j["inputs"].get<std::vector<std::string>>();

    return builder.add_library_node<CallNode>(parent, debug_info, callee_name, outputs, inputs);
}

CallNodeDispatcher::CallNodeDispatcher(
    codegen::LanguageExtension& language_extension,
    const Function& function,
    const data_flow::DataFlowGraph& data_flow_graph,
    const CallNode& node
)
    : codegen::LibraryNodeDispatcher(language_extension, function, data_flow_graph, node) {}

void CallNodeDispatcher::dispatch_code(
    codegen::PrettyPrinter& stream,
    codegen::PrettyPrinter& globals_stream,
    codegen::CodeSnippetFactory& library_snippet_factory
) {
    auto& node = static_cast<const CallNode&>(node_);

    if (!node.is_void(function_)) {
        stream << node.outputs().at(0) << " = ";
    }
    if (node.is_indirect_call(function_)) {
        auto& graph = node.get_parent();

        // Collect return memlet
        const data_flow::Memlet* ret_memlet = nullptr;
        for (auto& oedge : graph.out_edges(node)) {
            if (oedge.src_conn() == "_ret") {
                ret_memlet = &oedge;
                break;
            }
        }

        // Collect input memlets
        std::unordered_map<std::string, const data_flow::Memlet*> input_memlets;
        for (auto& iedge : graph.in_edges(node)) {
            input_memlets[iedge.dst_conn()] = &iedge;
        }

        // Cast callee to function pointer type
        std::string func_ptr_type;

        // Return type
        if (ret_memlet) {
            auto ret_type = ret_memlet->result_type(function_);
            func_ptr_type = language_extension_.declaration("", *ret_type) + " (*)";
        } else {
            func_ptr_type = "void (*)";
        }

        // Parameters
        func_ptr_type += "(";
        for (size_t i = 0; i < node.inputs().size(); i++) {
            auto memlet_in = input_memlets.find(node.inputs().at(i));
            assert(memlet_in != input_memlets.end());
            auto in_type = memlet_in->second->result_type(function_);
            func_ptr_type += language_extension_.declaration("", *in_type);
            if (i < node.inputs().size() - 1) {
                func_ptr_type += ", ";
            }
        }
        func_ptr_type += ")";

        if (this->language_extension_.language() == "C") {
            stream << "((" << func_ptr_type << ") " << node.callee_name() << ")" << "(";
        } else if (this->language_extension_.language() == "C++") {
            stream << "reinterpret_cast<" << func_ptr_type << ">(" << node.callee_name() << ")" << "(";
        }
    } else {
        stream << this->language_extension_.external_prefix() << node.callee_name() << "(";
    }
    for (size_t i = 0; i < node.inputs().size(); ++i) {
        stream << node.inputs().at(i);
        if (i < node.inputs().size() - 1) {
            stream << ", ";
        }
    }
    stream << ")" << ";";
    stream << std::endl;
}

} // namespace data_flow
} // namespace sdfg

1	#include "sdfg/data_flow/library_nodes/call_node.h"
2
3	namespace sdfg {
4	namespace data_flow {
5
6	CallNode::CallNode(
7	size_t element_id,
8	const DebugInfo& debug_info,
9	const graph::Vertex vertex,
10	data_flow::DataFlowGraph& parent,
11	const std::string& callee_name,
12	const std::vector<std::string>& outputs,
13	const std::vector<std::string>& inputs
14	)
15	: LibraryNode(	8✔
16	element_id,	8✔
17	debug_info,	8✔
18	vertex,	8✔
19	parent,	8✔
20	LibraryNodeType_Call,	8✔
21	outputs,	8✔
22	inputs,	8✔
23	true,	8✔
24	data_flow::ImplementationType_NONE	8✔
25	),	8✔
26	callee_name_(callee_name) {}	8✔
27
28	const std::string& CallNode::callee_name() const { return this->callee_name_; }	3✔
29
30	bool CallNode::is_void(const Function& sdfg) const { return outputs_.empty() \|\| outputs_.at(0) != "_ret"; }	9✔
31
32	bool CallNode::is_indirect_call(const Function& sdfg) const {	×
33	auto& type = sdfg.type(this->callee_name_);	×
34	return dynamic_cast<const types::Pointer*>(&type) != nullptr;	×
35	}	×
36
37	void CallNode::validate(const Function& function) const {	9✔
38	LibraryNode::validate(function);	9✔
39
40	if (!function.exists(this->callee_name_)) {	9✔
41	throw InvalidSDFGException("CallNode: Function '" + this->callee_name_ + "' does not exist.");	×
42	}	×
43	auto& type = function.type(this->callee_name_);	9✔
44	if (!dynamic_cast<const types::Function>(&type) && !dynamic_cast<const types::Pointer>(&type)) {	9✔
45	throw InvalidSDFGException("CallNode: '" + this->callee_name_ + "' is not a function or pointer.");	×
46	}	×
47
48	if (auto func_type = dynamic_cast<const types::Function*>(&type)) {	9✔
49	if (!function.is_external(this->callee_name_)) {	9✔
50	throw InvalidSDFGException("CallNode: Function '" + this->callee_name_ + "' must be declared.");	×
51	}	×
52	if (!func_type->is_var_arg() && inputs_.size() != func_type->num_params()) {	9✔
53	throw InvalidSDFGException(	×
54	"CallNode: Number of inputs does not match number of function parameters. Expected " +	×
55	std::to_string(func_type->num_params()) + ", got " + std::to_string(inputs_.size())	×
56	);	×
57	}	×
58	if (!this->is_void(function) && outputs_.size() < 1) {	9✔
59	throw InvalidSDFGException(	×
60	"CallNode: Non-void function must have at least one output to store the return value."	×
61	);	×
62	}	×
63	}	9✔
64	}	9✔
65
66	symbolic::SymbolSet CallNode::symbols() const { return {symbolic::symbol(this->callee_name_)}; }	9✔
67
68	std::unique_ptr<data_flow::DataFlowNode> CallNode::
69	clone(size_t element_id, const graph::Vertex vertex, data_flow::DataFlowGraph& parent) const {	×
70	return std::make_unique<CallNode>(element_id, debug_info_, vertex, parent, callee_name_, outputs_, inputs_);	×
71	}	×
72
NEW 73	std::string CallNode::toStr() const { return LibraryNode::toStr() + "('" + callee_name_ + "')"; }	×
74
UNCOV 75	void CallNode::replace(const symbolic::Expression old_expression, const symbolic::Expression new_expression) {}	×
76
77	nlohmann::json CallNodeSerializer::serialize(const data_flow::LibraryNode& library_node) {	3✔
78	const CallNode& node = static_cast<const CallNode&>(library_node);	3✔
79
80	nlohmann::json j;	3✔
81	j["code"] = node.code().value();	3✔
82	j["callee_name"] = node.callee_name();	3✔
83	j["outputs"] = node.outputs();	3✔
84	j["inputs"] = node.inputs();	3✔
85
86	return j;	3✔
87	}	3✔
88
89	data_flow::LibraryNode& CallNodeSerializer::deserialize(
90	const nlohmann::json& j, builder::StructuredSDFGBuilder& builder, structured_control_flow::Block& parent
91	) {	3✔
92	assert(j.contains("code"));	3✔
93	assert(j.contains("callee_name"));	3✔
94	assert(j.contains("outputs"));	3✔
95	assert(j.contains("inputs"));	3✔
96	assert(j.contains("debug_info"));	3✔
97
98	auto code = j["code"].get<std::string>();	3✔
99	if (code != LibraryNodeType_Call.value()) {	3✔
100	throw InvalidSDFGException("Invalid library node code");	×
101	}	×
102
103	sdfg::serializer::JSONSerializer serializer;	3✔
104	DebugInfo debug_info = serializer.json_to_debug_info(j["debug_info"]);	3✔
105
106	std::string callee_name = j["callee_name"].get<std::string>();	3✔
107	auto outputs = j["outputs"].get<std::vector<std::string>>();	3✔
108	auto inputs = j["inputs"].get<std::vector<std::string>>();	3✔
109
110	return builder.add_library_node<CallNode>(parent, debug_info, callee_name, outputs, inputs);	3✔
111	}	3✔
112
113	CallNodeDispatcher::CallNodeDispatcher(
114	codegen::LanguageExtension& language_extension,
115	const Function& function,
116	const data_flow::DataFlowGraph& data_flow_graph,
117	const CallNode& node
118	)
119	: codegen::LibraryNodeDispatcher(language_extension, function, data_flow_graph, node) {}	×
120
121	void CallNodeDispatcher::dispatch_code(
122	codegen::PrettyPrinter& stream,
123	codegen::PrettyPrinter& globals_stream,
124	codegen::CodeSnippetFactory& library_snippet_factory
125	) {	×
126	auto& node = static_cast<const CallNode&>(node_);	×
127
128	if (!node.is_void(function_)) {	×
129	stream << node.outputs().at(0) << " = ";	×
130	}	×
131	if (node.is_indirect_call(function_)) {	×
132	auto& graph = node.get_parent();	×
133
134	// Collect return memlet
135	const data_flow::Memlet* ret_memlet = nullptr;	×
136	for (auto& oedge : graph.out_edges(node)) {	×
137	if (oedge.src_conn() == "_ret") {	×
138	ret_memlet = &oedge;	×
139	break;	×
140	}	×
141	}	×
142
143	// Collect input memlets
144	std::unordered_map<std::string, const data_flow::Memlet*> input_memlets;	×
145	for (auto& iedge : graph.in_edges(node)) {	×
146	input_memlets[iedge.dst_conn()] = &iedge;	×
147	}	×
148
149	// Cast callee to function pointer type
150	std::string func_ptr_type;	×
151
152	// Return type
153	if (ret_memlet) {	×
154	auto ret_type = ret_memlet->result_type(function_);	×
155	func_ptr_type = language_extension_.declaration("", ret_type) + " ()";	×
156	} else {	×
157	func_ptr_type = "void (*)";	×
158	}	×
159
160	// Parameters
161	func_ptr_type += "(";	×
162	for (size_t i = 0; i < node.inputs().size(); i++) {	×
163	auto memlet_in = input_memlets.find(node.inputs().at(i));	×
164	assert(memlet_in != input_memlets.end());	×
165	auto in_type = memlet_in->second->result_type(function_);	×
166	func_ptr_type += language_extension_.declaration("", *in_type);	×
167	if (i < node.inputs().size() - 1) {	×
168	func_ptr_type += ", ";	×
169	}	×
170	}	×
171	func_ptr_type += ")";	×
172
173	if (this->language_extension_.language() == "C") {	×
174	stream << "((" << func_ptr_type << ") " << node.callee_name() << ")" << "(";	×
175	} else if (this->language_extension_.language() == "C++") {	×
176	stream << "reinterpret_cast<" << func_ptr_type << ">(" << node.callee_name() << ")" << "(";	×
177	}	×
178	} else {	×
179	stream << this->language_extension_.external_prefix() << node.callee_name() << "(";	×
180	}	×
181	for (size_t i = 0; i < node.inputs().size(); ++i) {	×
182	stream << node.inputs().at(i);	×
183	if (i < node.inputs().size() - 1) {	×
184	stream << ", ";	×
185	}	×
186	}	×
187	stream << ")" << ";";	×
188	stream << std::endl;	×
189	}	×
190
191	} // namespace data_flow
192	} // namespace sdfg

daisytuner / docc / 23087278095

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