26812579723

Committed 02 Jun 2026 10:00AM UTC coverage: 61.302% (+0.3%) from 61.039%

Build # 26812579723

Build Type

push

github

Committed by

web-flow

Commit Message

Fixes for LLVM frontend (#731)

- Removed catching InvalidSDFGException in LLVM frontend
- Deactivated 8 LLVM test suite tests (6 SEGFAULT, 2 have wrong results)
- Fixed lifting for memcpy, memmove, and memset and added test cases for this
- Fixed bug in BlockSorting
- Fixed bug where the DataDependencyAnalysis tried to get the type of __daisy_nullptr
- DOT visualizer can, now, also handle return states in (unstructured) SDFGs
- Added unit test for DOT visualizer on (unstructured) SDFGs

Coverage Stats

10 of 15 new or added lines in 4 files covered. (66.67%)

1 existing line in 1 file now uncovered.

35679 of 58202 relevant lines covered (61.3%)

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Source File
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85.24

/sdfg/src/visualizer/dot_visualizer.cpp

#include "sdfg/visualizer/dot_visualizer.h"

#include <cstddef>
#include <string>
#include <utility>

#include <regex>
#include "sdfg/data_flow/access_node.h"
#include "sdfg/data_flow/memlet.h"
#include "sdfg/structured_control_flow/control_flow_node.h"
#include "sdfg/structured_control_flow/sequence.h"
#include "sdfg/structured_sdfg.h"
#include "sdfg/symbolic/symbolic.h"

namespace sdfg {
namespace visualizer {

static std::regex dotIdBadChars("[^a-zA-Z0-9_]+");

static std::string escapeDotId(size_t id, const std::string& prefix = "") { return prefix + std::to_string(id); }

static std::string escapeDotId(const std::string& id, const std::string& prefix = "") {
    return prefix + std::regex_replace(id, dotIdBadChars, "_");
}

void DotVisualizer::visualizeSDFG(const SDFG& sdfg) {
    this->stream_.clear();
    this->stream_ << "digraph SDFG {\n";
    this->stream_.setIndent(4);
    this->stream_ << "graph [compound=true];" << std::endl << "node [style=filled,fillcolor=white];" << std::endl;

    // State identifier in DOT
    std::unordered_map<size_t, std::string> node_ids;

    // States as nodes
    for (auto& state : sdfg.states()) {
        auto id = escapeDotId(state.element_id(), "state_");
        this->stream_ << "subgraph cluster_" << id << " {" << std::endl;
        this->stream_.setIndent(this->stream_.indent() + 4);
        this->stream_ << "style=filled;fillcolor=white;color=black;label=\"State " << state.element_id() << "\";"
                      << std::endl;
        if (auto* return_state = dynamic_cast<const control_flow::ReturnState*>(&state)) {
            this->stream_ << id << " [shape=cds,label=\" return " << return_state->data() << " \"];" << std::endl;
        } else {
            this->stream_ << id << " [shape=point,style=invis;label=\"\"];" << std::endl;
            this->visualizeDataFlowGraph(id, state.dataflow());
        }
        this->stream_.setIndent(this->stream_.indent() - 4);
        this->stream_ << "}" << std::endl;
        node_ids.insert({state.element_id(), id});
    }

    // Edges
    for (auto& edge : sdfg.edges()) {
        auto& src_id = node_ids.at(edge.src().element_id());
        auto& dst_id = node_ids.at(edge.dst().element_id());
        this->stream_ << src_id << " -> " << dst_id << " [ltail=cluster_" << src_id << ",lhead=cluster_" << dst_id
                      << ",label=\"";

        // Condition
        bool print_condition = !symbolic::eq(edge.condition(), symbolic::__true__());
        if (print_condition) {
            this->stream_ << edge.condition()->__str__();
        }

        // Assignments
        if (!edge.assignments().empty()) {
            if (print_condition) {
                this->stream_ << ",\\n";
            }
            this->stream_ << "{";
            bool first = true;
            for (auto& [var, expr] : edge.assignments()) {
                if (!first) {
                    this->stream_ << "; ";
                }
                this->stream_ << var->get_name() << " = " << expr->__str__();
                first = false;
            }
            this->stream_ << "}";
        }
        this->stream_ << "\"];" << std::endl;
    }

    this->stream_.setIndent(0);
    this->stream_ << "}" << std::endl;
}

void DotVisualizer::visualizeStructuredSDFG(const StructuredSDFG& sdfg) {
    this->stream_.clear();
    this->stream_ << "digraph " << escapeDotId(sdfg.name()) << " {" << std::endl;
    this->stream_.setIndent(4);
    this->stream_ << "graph [compound=true];" << std::endl;
    this->stream_ << "subgraph cluster_" << escapeDotId(sdfg.name()) << " {" << std::endl;
    this->stream_.setIndent(8);
    this->stream_ << "node [style=filled,fillcolor=white];" << std::endl
                  << "style=filled;color=lightblue;label=\"\";" << std::endl;
    this->visualizeSequence(sdfg, sdfg.root());
    this->stream_.setIndent(4);
    this->stream_ << "}" << std::endl;
    this->stream_.setIndent(0);
    this->stream_ << "}" << std::endl;
}

void DotVisualizer::visualizeBlock(const StructuredSDFG& sdfg, const structured_control_flow::Block& block) {
    auto id = escapeDotId(block.element_id(), "block_");
    this->stream_ << "subgraph cluster_" << id << " {" << std::endl;
    this->stream_.setIndent(this->stream_.indent() + 4);
    this->stream_ << "style=filled;shape=box;fillcolor=white;color=black;label=\"";
    if (show_block_ids) {
        this->stream_ << "#" << block.element_id() << " ";
    }
    this->stream_ << "\";" << std::endl;
    this->visualizeDataFlowGraph(id, block.dataflow());
    this->stream_.setIndent(this->stream_.indent() - 4);
    this->stream_ << "}" << std::endl;
}

void DotVisualizer::visualizeSequence(const StructuredSDFG& sdfg, const structured_control_flow::Sequence& sequence) {
    std::string last_comp_name_tmp, last_comp_name_cluster_tmp;
    for (size_t i = 0; i < sequence.size(); ++i) {
        std::pair<const structured_control_flow::ControlFlowNode&, const structured_control_flow::Transition&> child =
            sequence.at(i);
        this->visualizeNode(sdfg, child.first);
        if ((i > 0) && !last_comp_name_tmp.empty() && !this->last_comp_name_.empty() &&
            last_comp_name_tmp != this->last_comp_name_) {
            this->stream_ << last_comp_name_tmp << " -> " << this->last_comp_name_ << " [";
            if (!last_comp_name_cluster_tmp.empty()) this->stream_ << "ltail=\"" << last_comp_name_cluster_tmp << "\",";
            if (!this->last_comp_name_cluster_.empty())
                this->stream_ << "lhead=\"" << this->last_comp_name_cluster_ << "\",";
            this->stream_ << "minlen=3]"
                          << ";" << std::endl;
        }
        last_comp_name_tmp = this->last_comp_name_;
        last_comp_name_cluster_tmp = this->last_comp_name_cluster_;
    }
}

void DotVisualizer::visualizeIfElse(const StructuredSDFG& sdfg, const structured_control_flow::IfElse& if_else) {
    auto id = escapeDotId(if_else.element_id(), "if_");
    this->stream_ << "subgraph cluster_" << id << " {" << std::endl;
    this->stream_.setIndent(this->stream_.indent() + 4);
    this->stream_ << "style=filled;shape=box;fillcolor=white;color=black;label=\"";
    if (show_block_ids) {
        this->stream_ << "#" << if_else.element_id() << " ";
    }
    this->stream_ << "if:\";" << std::endl << id << " [shape=point,style=invis,label=\"\"];" << std::endl;
    for (size_t i = 0; i < if_else.size(); ++i) {
        this->stream_ << "subgraph cluster_" << id << "_" << std::to_string(i) << " {" << std::endl;
        this->stream_.setIndent(this->stream_.indent() + 4);
        this->stream_ << "style=filled;shape=box;fillcolor=white;color=black;label=\""
                      << this->expression(if_else.at(i).second->__str__()) << "\";" << std::endl;
        this->visualizeSequence(sdfg, if_else.at(i).first);
        this->stream_.setIndent(this->stream_.indent() - 4);
        this->stream_ << "}" << std::endl;
    }
    this->stream_.setIndent(this->stream_.indent() - 4);
    this->stream_ << "}" << std::endl;
    this->last_comp_name_ = id;
    this->last_comp_name_cluster_ = "cluster_" + id;
}

void DotVisualizer::visualizeWhile(const StructuredSDFG& sdfg, const structured_control_flow::While& while_loop) {
    auto id = escapeDotId(while_loop.element_id(), "while_");
    this->stream_ << "subgraph cluster_" << id << " {" << std::endl;
    this->stream_.setIndent(this->stream_.indent() + 4);
    this->stream_ << "style=filled;shape=box;fillcolor=white;color=black;label=\"";
    if (show_block_ids) {
        this->stream_ << "#" << while_loop.element_id() << " ";
    }
    this->stream_ << "while:\";" << std::endl << id << " [shape=point,style=invis,label=\"\"];" << std::endl;
    this->visualizeSequence(sdfg, while_loop.root());
    this->stream_.setIndent(this->stream_.indent() - 4);
    this->stream_ << "}" << std::endl;
    this->last_comp_name_ = id;
    this->last_comp_name_cluster_ = "cluster_" + id;
}

void DotVisualizer::visualizeFor(const StructuredSDFG& sdfg, const structured_control_flow::For& loop) {
    auto id = escapeDotId(loop.element_id(), "for_");
    this->stream_ << "subgraph cluster_" << id << " {" << std::endl;
    this->stream_.setIndent(this->stream_.indent() + 4);
    this->stream_ << "style=filled;shape=box;fillcolor=white;color=black;label=\"";
    if (show_block_ids) {
        this->stream_ << "#" << loop.element_id() << " ";
    }
    this->stream_ << "for: ";
    this->visualizeForBounds(loop.indvar(), loop.init(), loop.condition(), loop.update());
    this->stream_ << "\";" << std::endl << id << " [shape=point,style=invis,label=\"\"];" << std::endl;
    this->visualizeSequence(sdfg, loop.root());
    this->stream_.setIndent(this->stream_.indent() - 4);
    this->stream_ << "}" << std::endl;
    this->last_comp_name_ = id;
    this->last_comp_name_cluster_ = "cluster_" + id;
}

void DotVisualizer::visualizeReturn(const StructuredSDFG& sdfg, const structured_control_flow::Return& return_node) {
    auto id = escapeDotId(return_node.element_id(), "return_");
    this->stream_ << id << " [shape=cds,label=\" return " << return_node.data() << "\"];" << std::endl;
    this->last_comp_name_ = id;
    this->last_comp_name_cluster_.clear();
}
void DotVisualizer::visualizeBreak(const StructuredSDFG& sdfg, const structured_control_flow::Break& break_node) {
    auto id = escapeDotId(break_node.element_id(), "break_");
    this->stream_ << id << " [shape=cds,label=\" break  \"];" << std::endl;
    this->last_comp_name_ = id;
    this->last_comp_name_cluster_.clear();
}

void DotVisualizer::visualizeContinue(const StructuredSDFG& sdfg, const structured_control_flow::Continue& continue_node) {
    auto id = escapeDotId(continue_node.element_id(), "cont_");
    this->stream_ << id << " [shape=cds,label=\" continue  \"];" << std::endl;
    this->last_comp_name_ = id;
    this->last_comp_name_cluster_.clear();
}

void DotVisualizer::visualizeMap(const StructuredSDFG& sdfg, const structured_control_flow::Map& map_node) {
    auto id = escapeDotId(map_node.element_id(), "map_");
    this->stream_ << "subgraph cluster_" << id << " {" << std::endl;
    this->stream_.setIndent(this->stream_.indent() + 4);
    this->stream_ << "style=filled;shape=box;fillcolor=white;color=black;label=\"";
    if (show_block_ids) {
        this->stream_ << "#" << map_node.element_id() << " ";
    }
    this->stream_ << "map: ";
    this->visualizeForBounds(map_node.indvar(), map_node.init(), map_node.condition(), map_node.update());

    this->stream_ << "\";" << std::endl << id << " [shape=point,style=invis,label=\"\"];" << std::endl;
    this->visualizeSequence(sdfg, map_node.root());
    this->stream_.setIndent(this->stream_.indent() - 4);
    this->stream_ << "}" << std::endl;
    this->last_comp_name_ = id;
    this->last_comp_name_cluster_ = "cluster_" + id;
}

void DotVisualizer::visualizeDataFlowGraph(const std::string& id, const data_flow::DataFlowGraph& dfg) {
    this->last_comp_name_cluster_ = "cluster_" + id;
    if (dfg.nodes().empty()) {
        this->stream_ << id << " [shape=point,style=invis,label=\"\"];" << std::endl;
        this->last_comp_name_ = id;
        return;
    }
    this->last_comp_name_.clear();
    std::list<const data_flow::DataFlowNode*> nodes = dfg.topological_sort();
    for (const data_flow::DataFlowNode* node : nodes) {
        std::vector<std::string> in_connectors;
        bool is_access_node = false;
        bool node_will_show_literal_connectors = false;
        auto nodeId = escapeDotId(node->element_id(), "id");
        if (this->last_comp_name_.empty()) {
            this->last_comp_name_ = nodeId;
        }
        if (const data_flow::Tasklet* tasklet = dynamic_cast<const data_flow::Tasklet*>(node)) {
            this->stream_ << nodeId << " [shape=octagon,label=\"" << tasklet->output() << " = ";
            this->visualizeTasklet(*tasklet);
            this->stream_ << "\"];" << std::endl;

            in_connectors = tasklet->inputs();
            node_will_show_literal_connectors = true;
        } else if (const data_flow::ConstantNode* constant_node = dynamic_cast<const data_flow::ConstantNode*>(node)) {
            this->stream_ << nodeId << " [";
            this->stream_ << "penwidth=3.0,";
            if (this->sdfg_.is_transient(constant_node->data())) this->stream_ << "style=\"dashed,filled\",";
            this->stream_ << "label=\"" << constant_node->data() << "\"];" << std::endl;
            is_access_node = true;
        } else if (const data_flow::AccessNode* access_node = dynamic_cast<const data_flow::AccessNode*>(node)) {
            this->stream_ << nodeId << " [";
            this->stream_ << "penwidth=3.0,";
            if (this->sdfg_.is_transient(access_node->data())) this->stream_ << "style=\"dashed,filled\",";
            this->stream_ << "label=\"" << access_node->data() << "\"];" << std::endl;
            is_access_node = true;
        } else if (const data_flow::LibraryNode* libnode = dynamic_cast<const data_flow::LibraryNode*>(node)) {
            this->stream_ << nodeId << " [shape=doubleoctagon,label=\"" << libnode->toStr() << "\"];" << std::endl;
            in_connectors = libnode->inputs();
        }

        std::unordered_set<std::string> unused_connectors(in_connectors.begin(), in_connectors.end());
        for (const data_flow::Memlet& iedge : dfg.in_edges(*node)) {
            auto& src = iedge.src();
            auto& dst_conn = iedge.dst_conn();
            bool nonexistent_conn = false;

            if (!is_access_node) {
                auto it = unused_connectors.find(dst_conn);
                if (it != unused_connectors.end()) {
                    unused_connectors.erase(it); // remove connector from in_connectors, so it is not used again
                } else {
                    nonexistent_conn = true;
                }
            }

            this->stream_ << escapeDotId(src.element_id(), "id") << " -> " << nodeId << " [label=\"   ";
            bool dstIsVoid = dst_conn == "void";
            bool dstIsRef = dst_conn == "ref";
            bool dstIsDeref = dst_conn == "deref";
            auto& src_conn = iedge.src_conn();
            bool srcIsVoid = src_conn == "void";
            bool srcIsDeref = src_conn == "deref";

            if (nonexistent_conn) {
                this->stream_ << "!!"; // this should not happen, but if it does, we can still visualize the memlet
            }

            if (dstIsVoid || dstIsRef || dstIsDeref) { // subset applies to dst
                auto& dstVar = dynamic_cast<data_flow::AccessNode const&>(iedge.dst()).data();
                bool subsetOnDst = false;
                if (srcIsDeref && dstIsVoid) { // Pure Store by Memlet definition (Dereference Memlet Store)
                    auto& subset = iedge.subset();
                    if (subset.size() == 1 && symbolic::eq(subset[0], symbolic::integer(0))) {
                        this->stream_ << "*" << dstVar; // store to pointer without further address calc
                    } else { // fallback, this should not be allowed to happen
                        this->stream_ << dstVar; // use access node name instead of connector-name
                        subsetOnDst = true;
                    }
                } else if (dstIsVoid) { // computational memlet / output from tasklet / memory store
                    this->stream_ << dstVar; // use access node name instead of connector-name
                    subsetOnDst = true;
                } else {
                    this->stream_ << dstVar; // use access node name instead of connector-name
                }
                if (subsetOnDst) {
                    this->visualizeSubset(iedge.subset(), &iedge.base_type());
                }
            } else { // dst is a tasklet/library node
                this->stream_ << dst_conn;
            }

            this->stream_ << " = ";

            if (srcIsVoid || srcIsDeref) { // subset applies to src, could be computational, reference or dereference
                                           // memlet
                auto& srcVar = dynamic_cast<data_flow::AccessNode const&>(src).data();
                bool subsetOnSrc = false;
                if (srcIsVoid && dstIsRef) { // reference memlet / address-of / get-element-ptr equivalent
                    this->stream_ << "&";
                    subsetOnSrc = true;
                } else if (srcIsVoid && dstIsDeref) { // Dereference memlet / load from address
                    this->stream_ << "*";
                    auto& subset = iedge.subset();
                    if (subset.size() != 1 && symbolic::eq(subset[0], symbolic::integer(0))) { // does not match memlet
                                                                                               // definition -> fallback
                        subsetOnSrc = true;
                    }
                } else if (srcIsVoid) {
                    subsetOnSrc = true;
                }
                this->stream_ << srcVar;
                if (subsetOnSrc) {
                    this->visualizeSubset(iedge.subset(), &iedge.base_type());
                }
            } else {
                this->stream_ << src_conn;
            }
            this->stream_ << "   \"];" << std::endl;
        }

        if (!node_will_show_literal_connectors) {
            for (uint64_t i = 0; i < in_connectors.size(); ++i) {
                auto& in_conn = in_connectors[i];
                auto it = unused_connectors.find(in_conn);
                if (it != unused_connectors.end()) {
                    auto literal_id = escapeDotId(node->element_id(), "id") + "_" + escapeDotId(i, "in");
                    this->stream_ << literal_id << " [style=\"invis\", label=\"\"];" << std::endl;
                    this->stream_ << literal_id << " -> " << nodeId << " [style=\"dotted\", label=\"" << i << ":"
                                  << in_conn << "\"]" << ";" << std::endl;
                }
            }
        }
    }
}

void DotVisualizer::writeToFile(const Function& sdfg, const std::filesystem::path& file) { writeToFile(sdfg, &file); }

void DotVisualizer::writeToFile(const Function& sdfg, const std::filesystem::path* file) {
    DotVisualizer viz(sdfg);
    viz.visualize();

    std::filesystem::path fileName = file ? *file : std::filesystem::path(sdfg.name() + ".dot");

    auto parent_path = fileName.parent_path();
    if (!parent_path.empty()) {
        std::filesystem::create_directories(fileName.parent_path());
    }

    std::ofstream dotOutput(fileName, std::ofstream::out);
    if (!dotOutput.is_open()) {
        std::cerr << "Could not open file " << fileName << " for writing DOT output." << std::endl;
    }

    dotOutput << viz.getStream().str();
    dotOutput.close();
}

} // namespace visualizer
} // namespace sdfg

1	#include "sdfg/visualizer/dot_visualizer.h"
2
3	#include <cstddef>
4	#include <string>
5	#include <utility>
6
7	#include <regex>
8	#include "sdfg/data_flow/access_node.h"
9	#include "sdfg/data_flow/memlet.h"
10	#include "sdfg/structured_control_flow/control_flow_node.h"
11	#include "sdfg/structured_control_flow/sequence.h"
12	#include "sdfg/structured_sdfg.h"
13	#include "sdfg/symbolic/symbolic.h"
14
15	namespace sdfg {
16	namespace visualizer {
17
18	static std::regex dotIdBadChars("[^a-zA-Z0-9_]+");
19
20	static std::string escapeDotId(size_t id, const std::string& prefix = "") { return prefix + std::to_string(id); }	193✔
21
22	static std::string escapeDotId(const std::string& id, const std::string& prefix = "") {	38✔
23	return prefix + std::regex_replace(id, dotIdBadChars, "_");	38✔
24	}	38✔
25
26	void DotVisualizer::visualizeSDFG(const SDFG& sdfg) {	1✔
27	this->stream_.clear();	1✔
28	this->stream_ << "digraph SDFG {\n";	1✔
29	this->stream_.setIndent(4);	1✔
30	this->stream_ << "graph [compound=true];" << std::endl << "node [style=filled,fillcolor=white];" << std::endl;	1✔
31
32	// State identifier in DOT
33	std::unordered_map<size_t, std::string> node_ids;	1✔
34
35	// States as nodes
36	for (auto& state : sdfg.states()) {	4✔
37	auto id = escapeDotId(state.element_id(), "state_");	4✔
38	this->stream_ << "subgraph cluster_" << id << " {" << std::endl;	4✔
39	this->stream_.setIndent(this->stream_.indent() + 4);	4✔
40	this->stream_ << "style=filled;fillcolor=white;color=black;label=\"State " << state.element_id() << "\";"	4✔
41	<< std::endl;	4✔
42	if (auto* return_state = dynamic_cast<const control_flow::ReturnState*>(&state)) {	4✔
NEW 43	this->stream_ << id << " [shape=cds,label=\" return " << return_state->data() << " \"];" << std::endl;	×
44	} else {	4✔
45	this->stream_ << id << " [shape=point,style=invis;label=\"\"];" << std::endl;	4✔
46	this->visualizeDataFlowGraph(id, state.dataflow());	4✔
47	}	4✔
48	this->stream_.setIndent(this->stream_.indent() - 4);	4✔
49	this->stream_ << "}" << std::endl;	4✔
50	node_ids.insert({state.element_id(), id});	4✔
51	}	4✔
52
53	// Edges
54	for (auto& edge : sdfg.edges()) {	4✔
55	auto& src_id = node_ids.at(edge.src().element_id());	4✔
56	auto& dst_id = node_ids.at(edge.dst().element_id());	4✔
57	this->stream_ << src_id << " -> " << dst_id << " [ltail=cluster_" << src_id << ",lhead=cluster_" << dst_id	4✔
58	<< ",label=\"";	4✔
59
60	// Condition
61	bool print_condition = !symbolic::eq(edge.condition(), symbolic::__true__());	4✔
62	if (print_condition) {	4✔
63	this->stream_ << edge.condition()->__str__();	2✔
64	}	2✔
65
66	// Assignments
67	if (!edge.assignments().empty()) {	4✔
68	if (print_condition) {	1✔
69	this->stream_ << ",\\n";	×
70	}	×
71	this->stream_ << "{";	1✔
72	bool first = true;	1✔
73	for (auto& [var, expr] : edge.assignments()) {	1✔
74	if (!first) {	1✔
75	this->stream_ << "; ";	×
76	}	×
77	this->stream_ << var->get_name() << " = " << expr->__str__();	1✔
78	first = false;	1✔
79	}	1✔
80	this->stream_ << "}";	1✔
81	}	1✔
82	this->stream_ << "\"];" << std::endl;	4✔
83	}	4✔
84
85	this->stream_.setIndent(0);	1✔
86	this->stream_ << "}" << std::endl;	1✔
87	}	1✔
88
89	void DotVisualizer::visualizeStructuredSDFG(const StructuredSDFG& sdfg) {	19✔
90	this->stream_.clear();	19✔
91	this->stream_ << "digraph " << escapeDotId(sdfg.name()) << " {" << std::endl;	19✔
92	this->stream_.setIndent(4);	19✔
93	this->stream_ << "graph [compound=true];" << std::endl;	19✔
94	this->stream_ << "subgraph cluster_" << escapeDotId(sdfg.name()) << " {" << std::endl;	19✔
95	this->stream_.setIndent(8);	19✔
96	this->stream_ << "node [style=filled,fillcolor=white];" << std::endl	19✔
97	<< "style=filled;color=lightblue;label=\"\";" << std::endl;	19✔
98	this->visualizeSequence(sdfg, sdfg.root());	19✔
99	this->stream_.setIndent(4);	19✔
100	this->stream_ << "}" << std::endl;	19✔
101	this->stream_.setIndent(0);	19✔
102	this->stream_ << "}" << std::endl;	19✔
103	}	19✔
104
105	void DotVisualizer::visualizeBlock(const StructuredSDFG& sdfg, const structured_control_flow::Block& block) {	27✔
106	auto id = escapeDotId(block.element_id(), "block_");	27✔
107	this->stream_ << "subgraph cluster_" << id << " {" << std::endl;	27✔
108	this->stream_.setIndent(this->stream_.indent() + 4);	27✔
109	this->stream_ << "style=filled;shape=box;fillcolor=white;color=black;label=\"";	27✔
110	if (show_block_ids) {	27✔
111	this->stream_ << "#" << block.element_id() << " ";	×
112	}	×
113	this->stream_ << "\";" << std::endl;	27✔
114	this->visualizeDataFlowGraph(id, block.dataflow());	27✔
115	this->stream_.setIndent(this->stream_.indent() - 4);	27✔
116	this->stream_ << "}" << std::endl;	27✔
117	}	27✔
118
119	void DotVisualizer::visualizeSequence(const StructuredSDFG& sdfg, const structured_control_flow::Sequence& sequence) {	40✔
120	std::string last_comp_name_tmp, last_comp_name_cluster_tmp;	40✔
121	for (size_t i = 0; i < sequence.size(); ++i) {	89✔
122	std::pair<const structured_control_flow::ControlFlowNode&, const structured_control_flow::Transition&> child =	49✔
123	sequence.at(i);	49✔
124	this->visualizeNode(sdfg, child.first);	49✔
125	if ((i > 0) && !last_comp_name_tmp.empty() && !this->last_comp_name_.empty() &&	49✔
126	last_comp_name_tmp != this->last_comp_name_) {	49✔
127	this->stream_ << last_comp_name_tmp << " -> " << this->last_comp_name_ << " [";	9✔
128	if (!last_comp_name_cluster_tmp.empty()) this->stream_ << "ltail=\"" << last_comp_name_cluster_tmp << "\",";	9✔
129	if (!this->last_comp_name_cluster_.empty())	9✔
130	this->stream_ << "lhead=\"" << this->last_comp_name_cluster_ << "\",";	6✔
131	this->stream_ << "minlen=3]"	9✔
132	<< ";" << std::endl;	9✔
133	}	9✔
134	last_comp_name_tmp = this->last_comp_name_;	49✔
135	last_comp_name_cluster_tmp = this->last_comp_name_cluster_;	49✔
136	}	49✔
137	}	40✔
138
139	void DotVisualizer::visualizeIfElse(const StructuredSDFG& sdfg, const structured_control_flow::IfElse& if_else) {	3✔
140	auto id = escapeDotId(if_else.element_id(), "if_");	3✔
141	this->stream_ << "subgraph cluster_" << id << " {" << std::endl;	3✔
142	this->stream_.setIndent(this->stream_.indent() + 4);	3✔
143	this->stream_ << "style=filled;shape=box;fillcolor=white;color=black;label=\"";	3✔
144	if (show_block_ids) {	3✔
145	this->stream_ << "#" << if_else.element_id() << " ";	×
146	}	×
147	this->stream_ << "if:\";" << std::endl << id << " [shape=point,style=invis,label=\"\"];" << std::endl;	3✔
148	for (size_t i = 0; i < if_else.size(); ++i) {	9✔
149	this->stream_ << "subgraph cluster_" << id << "_" << std::to_string(i) << " {" << std::endl;	6✔
150	this->stream_.setIndent(this->stream_.indent() + 4);	6✔
151	this->stream_ << "style=filled;shape=box;fillcolor=white;color=black;label=\""	6✔
152	<< this->expression(if_else.at(i).second->__str__()) << "\";" << std::endl;	6✔
153	this->visualizeSequence(sdfg, if_else.at(i).first);	6✔
154	this->stream_.setIndent(this->stream_.indent() - 4);	6✔
155	this->stream_ << "}" << std::endl;	6✔
156	}	6✔
157	this->stream_.setIndent(this->stream_.indent() - 4);	3✔
158	this->stream_ << "}" << std::endl;	3✔
159	this->last_comp_name_ = id;	3✔
160	this->last_comp_name_cluster_ = "cluster_" + id;	3✔
161	}	3✔
162
163	void DotVisualizer::visualizeWhile(const StructuredSDFG& sdfg, const structured_control_flow::While& while_loop) {	2✔
164	auto id = escapeDotId(while_loop.element_id(), "while_");	2✔
165	this->stream_ << "subgraph cluster_" << id << " {" << std::endl;	2✔
166	this->stream_.setIndent(this->stream_.indent() + 4);	2✔
167	this->stream_ << "style=filled;shape=box;fillcolor=white;color=black;label=\"";	2✔
168	if (show_block_ids) {	2✔
169	this->stream_ << "#" << while_loop.element_id() << " ";	×
170	}	×
171	this->stream_ << "while:\";" << std::endl << id << " [shape=point,style=invis,label=\"\"];" << std::endl;	2✔
172	this->visualizeSequence(sdfg, while_loop.root());	2✔
173	this->stream_.setIndent(this->stream_.indent() - 4);	2✔
174	this->stream_ << "}" << std::endl;	2✔
175	this->last_comp_name_ = id;	2✔
176	this->last_comp_name_cluster_ = "cluster_" + id;	2✔
177	}	2✔
178
179	void DotVisualizer::visualizeFor(const StructuredSDFG& sdfg, const structured_control_flow::For& loop) {	10✔
180	auto id = escapeDotId(loop.element_id(), "for_");	10✔
181	this->stream_ << "subgraph cluster_" << id << " {" << std::endl;	10✔
182	this->stream_.setIndent(this->stream_.indent() + 4);	10✔
183	this->stream_ << "style=filled;shape=box;fillcolor=white;color=black;label=\"";	10✔
184	if (show_block_ids) {	10✔
185	this->stream_ << "#" << loop.element_id() << " ";	×
186	}	×
187	this->stream_ << "for: ";	10✔
188	this->visualizeForBounds(loop.indvar(), loop.init(), loop.condition(), loop.update());	10✔
189	this->stream_ << "\";" << std::endl << id << " [shape=point,style=invis,label=\"\"];" << std::endl;	10✔
190	this->visualizeSequence(sdfg, loop.root());	10✔
191	this->stream_.setIndent(this->stream_.indent() - 4);	10✔
192	this->stream_ << "}" << std::endl;	10✔
193	this->last_comp_name_ = id;	10✔
194	this->last_comp_name_cluster_ = "cluster_" + id;	10✔
195	}	10✔
196
197	void DotVisualizer::visualizeReturn(const StructuredSDFG& sdfg, const structured_control_flow::Return& return_node) {	2✔
198	auto id = escapeDotId(return_node.element_id(), "return_");	2✔
199	this->stream_ << id << " [shape=cds,label=\" return " << return_node.data() << "\"];" << std::endl;	2✔
200	this->last_comp_name_ = id;	2✔
201	this->last_comp_name_cluster_.clear();	2✔
202	}	2✔
203	void DotVisualizer::visualizeBreak(const StructuredSDFG& sdfg, const structured_control_flow::Break& break_node) {	1✔
204	auto id = escapeDotId(break_node.element_id(), "break_");	1✔
205	this->stream_ << id << " [shape=cds,label=\" break \"];" << std::endl;	1✔
206	this->last_comp_name_ = id;	1✔
207	this->last_comp_name_cluster_.clear();	1✔
208	}	1✔
209
210	void DotVisualizer::visualizeContinue(const StructuredSDFG& sdfg, const structured_control_flow::Continue& continue_node) {	1✔
211	auto id = escapeDotId(continue_node.element_id(), "cont_");	1✔
212	this->stream_ << id << " [shape=cds,label=\" continue \"];" << std::endl;	1✔
213	this->last_comp_name_ = id;	1✔
214	this->last_comp_name_cluster_.clear();	1✔
215	}	1✔
216
217	void DotVisualizer::visualizeMap(const StructuredSDFG& sdfg, const structured_control_flow::Map& map_node) {	3✔
218	auto id = escapeDotId(map_node.element_id(), "map_");	3✔
219	this->stream_ << "subgraph cluster_" << id << " {" << std::endl;	3✔
220	this->stream_.setIndent(this->stream_.indent() + 4);	3✔
221	this->stream_ << "style=filled;shape=box;fillcolor=white;color=black;label=\"";	3✔
222	if (show_block_ids) {	3✔
223	this->stream_ << "#" << map_node.element_id() << " ";	×
224	}	×
225	this->stream_ << "map: ";	3✔
226	this->visualizeForBounds(map_node.indvar(), map_node.init(), map_node.condition(), map_node.update());	3✔
227
228	this->stream_ << "\";" << std::endl << id << " [shape=point,style=invis,label=\"\"];" << std::endl;	3✔
229	this->visualizeSequence(sdfg, map_node.root());	3✔
230	this->stream_.setIndent(this->stream_.indent() - 4);	3✔
231	this->stream_ << "}" << std::endl;	3✔
232	this->last_comp_name_ = id;	3✔
233	this->last_comp_name_cluster_ = "cluster_" + id;	3✔
234	}	3✔
235
236	void DotVisualizer::visualizeDataFlowGraph(const std::string& id, const data_flow::DataFlowGraph& dfg) {	31✔
237	this->last_comp_name_cluster_ = "cluster_" + id;	31✔
238	if (dfg.nodes().empty()) {	31✔
239	this->stream_ << id << " [shape=point,style=invis,label=\"\"];" << std::endl;	5✔
240	this->last_comp_name_ = id;	5✔
241	return;	5✔
242	}	5✔
243	this->last_comp_name_.clear();	26✔
244	std::list<const data_flow::DataFlowNode*> nodes = dfg.topological_sort();	26✔
245	for (const data_flow::DataFlowNode* node : nodes) {	83✔
246	std::vector<std::string> in_connectors;	83✔
247	bool is_access_node = false;	83✔
248	bool node_will_show_literal_connectors = false;	83✔
249	auto nodeId = escapeDotId(node->element_id(), "id");	83✔
250	if (this->last_comp_name_.empty()) {	83✔
251	this->last_comp_name_ = nodeId;	26✔
252	}	26✔
253	if (const data_flow::Tasklet* tasklet = dynamic_cast<const data_flow::Tasklet*>(node)) {	83✔
254	this->stream_ << nodeId << " [shape=octagon,label=\"" << tasklet->output() << " = ";	27✔
255	this->visualizeTasklet(*tasklet);	27✔
256	this->stream_ << "\"];" << std::endl;	27✔
257
258	in_connectors = tasklet->inputs();	27✔
259	node_will_show_literal_connectors = true;	27✔
260	} else if (const data_flow::ConstantNode* constant_node = dynamic_cast<const data_flow::ConstantNode*>(node)) {	56✔
261	this->stream_ << nodeId << " [";	7✔
262	this->stream_ << "penwidth=3.0,";	7✔
263	if (this->sdfg_.is_transient(constant_node->data())) this->stream_ << "style=\"dashed,filled\",";	7✔
264	this->stream_ << "label=\"" << constant_node->data() << "\"];" << std::endl;	7✔
265	is_access_node = true;	7✔
266	} else if (const data_flow::AccessNode* access_node = dynamic_cast<const data_flow::AccessNode*>(node)) {	49✔
267	this->stream_ << nodeId << " [";	48✔
268	this->stream_ << "penwidth=3.0,";	48✔
269	if (this->sdfg_.is_transient(access_node->data())) this->stream_ << "style=\"dashed,filled\",";	48✔
270	this->stream_ << "label=\"" << access_node->data() << "\"];" << std::endl;	48✔
271	is_access_node = true;	48✔
272	} else if (const data_flow::LibraryNode* libnode = dynamic_cast<const data_flow::LibraryNode*>(node)) {	48✔
273	this->stream_ << nodeId << " [shape=doubleoctagon,label=\"" << libnode->toStr() << "\"];" << std::endl;	1✔
274	in_connectors = libnode->inputs();	1✔
275	}	1✔
276
277	std::unordered_set<std::string> unused_connectors(in_connectors.begin(), in_connectors.end());	83✔
278	for (const data_flow::Memlet& iedge : dfg.in_edges(*node)) {	83✔
279	auto& src = iedge.src();	57✔
280	auto& dst_conn = iedge.dst_conn();	57✔
281	bool nonexistent_conn = false;	57✔
282
283	if (!is_access_node) {	57✔
284	auto it = unused_connectors.find(dst_conn);	29✔
285	if (it != unused_connectors.end()) {	29✔
286	unused_connectors.erase(it); // remove connector from in_connectors, so it is not used again	29✔
287	} else {	29✔
288	nonexistent_conn = true;	×
289	}	×
290	}	29✔
291
292	this->stream_ << escapeDotId(src.element_id(), "id") << " -> " << nodeId << " [label=\" ";	57✔
293	bool dstIsVoid = dst_conn == "void";	57✔
294	bool dstIsRef = dst_conn == "ref";	57✔
295	bool dstIsDeref = dst_conn == "deref";	57✔
296	auto& src_conn = iedge.src_conn();	57✔
297	bool srcIsVoid = src_conn == "void";	57✔
298	bool srcIsDeref = src_conn == "deref";	57✔
299
300	if (nonexistent_conn) {	57✔
301	this->stream_ << "!!"; // this should not happen, but if it does, we can still visualize the memlet	×
302	}	×
303
304	if (dstIsVoid \|\| dstIsRef \|\| dstIsDeref) { // subset applies to dst	57✔
305	auto& dstVar = dynamic_cast<data_flow::AccessNode const&>(iedge.dst()).data();	28✔
306	bool subsetOnDst = false;	28✔
307	if (srcIsDeref && dstIsVoid) { // Pure Store by Memlet definition (Dereference Memlet Store)	28✔
308	auto& subset = iedge.subset();	×
309	if (subset.size() == 1 && symbolic::eq(subset[0], symbolic::integer(0))) {	×
310	this->stream_ << "*" << dstVar; // store to pointer without further address calc	×
311	} else { // fallback, this should not be allowed to happen	×
312	this->stream_ << dstVar; // use access node name instead of connector-name	×
313	subsetOnDst = true;	×
314	}	×
315	} else if (dstIsVoid) { // computational memlet / output from tasklet / memory store	28✔
316	this->stream_ << dstVar; // use access node name instead of connector-name	28✔
317	subsetOnDst = true;	28✔
318	} else {	28✔
319	this->stream_ << dstVar; // use access node name instead of connector-name	×
320	}	×
321	if (subsetOnDst) {	28✔
322	this->visualizeSubset(iedge.subset(), &iedge.base_type());	28✔
323	}	28✔
324	} else { // dst is a tasklet/library node	29✔
325	this->stream_ << dst_conn;	29✔
326	}	29✔
327
328	this->stream_ << " = ";	57✔
329
330	if (srcIsVoid \|\| srcIsDeref) { // subset applies to src, could be computational, reference or dereference	57✔
331	// memlet
332	auto& srcVar = dynamic_cast<data_flow::AccessNode const&>(src).data();	29✔
333	bool subsetOnSrc = false;	29✔
334	if (srcIsVoid && dstIsRef) { // reference memlet / address-of / get-element-ptr equivalent	29✔
335	this->stream_ << "&";	×
336	subsetOnSrc = true;	×
337	} else if (srcIsVoid && dstIsDeref) { // Dereference memlet / load from address	29✔
338	this->stream_ << "*";	×
339	auto& subset = iedge.subset();	×
340	if (subset.size() != 1 && symbolic::eq(subset[0], symbolic::integer(0))) { // does not match memlet	×
341	// definition -> fallback
342	subsetOnSrc = true;	×
343	}	×
344	} else if (srcIsVoid) {	29✔
345	subsetOnSrc = true;	29✔
346	}	29✔
347	this->stream_ << srcVar;	29✔
348	if (subsetOnSrc) {	29✔
349	this->visualizeSubset(iedge.subset(), &iedge.base_type());	29✔
350	}	29✔
351	} else {	29✔
352	this->stream_ << src_conn;	28✔
353	}	28✔
354	this->stream_ << " \"];" << std::endl;	57✔
355	}	57✔
356
357	if (!node_will_show_literal_connectors) {	83✔
358	for (uint64_t i = 0; i < in_connectors.size(); ++i) {	56✔
359	auto& in_conn = in_connectors[i];	×
360	auto it = unused_connectors.find(in_conn);	×
361	if (it != unused_connectors.end()) {	×
362	auto literal_id = escapeDotId(node->element_id(), "id") + "_" + escapeDotId(i, "in");	×
363	this->stream_ << literal_id << " [style=\"invis\", label=\"\"];" << std::endl;	×
364	this->stream_ << literal_id << " -> " << nodeId << " [style=\"dotted\", label=\"" << i << ":"	×
365	<< in_conn << "\"]" << ";" << std::endl;	×
366	}	×
367	}	×
368	}	56✔
369	}	83✔
370	}	26✔
371
372	void DotVisualizer::writeToFile(const Function& sdfg, const std::filesystem::path& file) { writeToFile(sdfg, &file); }	×
373
374	void DotVisualizer::writeToFile(const Function& sdfg, const std::filesystem::path* file) {	1✔
375	DotVisualizer viz(sdfg);	1✔
376	viz.visualize();	1✔
377
378	std::filesystem::path fileName = file ? *file : std::filesystem::path(sdfg.name() + ".dot");	1✔
379
380	auto parent_path = fileName.parent_path();	1✔
381	if (!parent_path.empty()) {	1✔
382	std::filesystem::create_directories(fileName.parent_path());	×
383	}	×
384
385	std::ofstream dotOutput(fileName, std::ofstream::out);	1✔
386	if (!dotOutput.is_open()) {	1✔
387	std::cerr << "Could not open file " << fileName << " for writing DOT output." << std::endl;	×
388	}	×
389
390	dotOutput << viz.getStream().str();	1✔
391	dotOutput.close();	1✔
392	}	1✔
393
394	} // namespace visualizer
395	} // namespace sdfg

daisytuner / docc / 26812579723

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