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fruffy committed Jan 26, 2025
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<div class="header">
<div class="headertitle"><div class="title">action_mutex.h</div></div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#ifndef BF_P4C_MAU_ACTION_MUTEX_H_</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#define BF_P4C_MAU_ACTION_MUTEX_H_</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include &lt;map&gt;</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include &quot;backends/tofino/bf-p4c/mau/mau_visitor.h&quot;</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include &quot;lib/symbitmatrix.h&quot;</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="keyword">using namespace </span><a class="code hl_namespace" href="namespace_p4.html">P4</a>;</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> </div>
<div class="foldopen" id="foldopen00029" data-start="{" data-end="};">
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"><a class="line" href="class_action_mutually_exclusive.html"> 29</a></span><span class="keyword">class </span><a class="code hl_class" href="class_action_mutually_exclusive.html">ActionMutuallyExclusive</a> : <span class="keyword">public</span> <a class="code hl_class" href="class_mau_inspector.html">MauInspector</a> {</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="comment">// map action to ids</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> std::map&lt;const IR::MAU::Action *, int&gt; action_ids;</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> <span class="comment">// map table to all actions that will be executed after applying it.</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> std::map&lt;const IR::MAU::Table *, bitvec&gt; action_succ;</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <span class="comment">// action mutex matrix</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <a class="code hl_class" href="class_p4_1_1_sym_bit_matrix.html">SymBitMatrix</a> not_mutex;</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="keywordtype">bool</span> preorder(<span class="keyword">const</span> IR::MAU::Table *t)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> *act : Values(t-&gt;actions)) {</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <span class="keywordflow">if</span> (!action_ids.count(act)) action_ids.emplace(act, action_ids.size());</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> name_actions[t-&gt;externalName() + <span class="stringliteral">&quot;.&quot;</span> + act-&gt;name] = act;</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> }</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> }</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="keywordtype">void</span> postorder(<span class="keyword">const</span> IR::MAU::Table *tbl) <span class="keyword">override</span>;</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keywordtype">void</span> postorder(<span class="keyword">const</span> IR::MAU::TableSeq *seq) <span class="keyword">override</span>;</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <a class="code hl_class" href="class_p4_1_1_visitor_1_1profile__t.html">profile_t</a> init_apply(<span class="keyword">const</span> <a class="code hl_class" href="class_p4_1_1_i_r_1_1_node.html">IR::Node</a> *root)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <a class="code hl_class" href="class_p4_1_1_visitor_1_1profile__t.html">profile_t</a> rv = MauInspector::init_apply(root);</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> action_ids.clear();</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> action_succ.clear();</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> not_mutex.clear();</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">return</span> rv;</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> }</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keywordtype">bool</span> operator()(<span class="keyword">const</span> IR::MAU::Action *a, <span class="keyword">const</span> IR::MAU::Action *b)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keywordflow">return</span> !not_mutex(action_ids.at(a), action_ids.at(b));</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> }</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="comment">// For unit-tests</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">const</span> std::map&lt;const IR::MAU::Action *, int&gt; &amp;actions()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> action_ids; }</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="comment">// Maping action names to pointers</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> std::map&lt;cstring, const IR::MAU::Action *&gt; name_actions;</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span>};</div>
</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span><span class="preprocessor">#endif </span><span class="comment">/* BF_P4C_MAU_ACTION_MUTEX_H_ */</span><span class="preprocessor"></span></div>
<div class="ttc" id="aclass_action_mutually_exclusive_html"><div class="ttname"><a href="class_action_mutually_exclusive.html">ActionMutuallyExclusive</a></div><div class="ttdef"><b>Definition</b> action_mutex.h:29</div></div>
<div class="ttc" id="aclass_mau_inspector_html"><div class="ttname"><a href="class_mau_inspector.html">MauInspector</a></div><div class="ttdef"><b>Definition</b> mau_visitor.h:29</div></div>
<div class="ttc" id="aclass_p4_1_1_i_r_1_1_node_html"><div class="ttname"><a href="class_p4_1_1_i_r_1_1_node.html">P4::IR::Node</a></div><div class="ttdef"><b>Definition</b> node.h:94</div></div>
<div class="ttc" id="aclass_p4_1_1_sym_bit_matrix_html"><div class="ttname"><a href="class_p4_1_1_sym_bit_matrix.html">P4::SymBitMatrix</a></div><div class="ttdef"><b>Definition</b> symbitmatrix.h:27</div></div>
<div class="ttc" id="aclass_p4_1_1_visitor_1_1profile__t_html"><div class="ttname"><a href="class_p4_1_1_visitor_1_1profile__t.html">P4::Visitor::profile_t</a></div><div class="ttdef"><b>Definition</b> visitor.h:78</div></div>
<div class="ttc" id="anamespace_p4_html"><div class="ttname"><a href="namespace_p4.html">P4</a></div><div class="ttdoc">TODO: this is not really specific to BMV2, it should reside somewhere else.</div><div class="ttdef"><b>Definition</b> applyOptionsPragmas.cpp:24</div></div>
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