revert changes

lsils · May 6, 2024 · c13cd02 · c13cd02
1 parent 8a10355
commit c13cd02
Showing 1 changed file with 21 additions and 15 deletions.
diff --git a/include/mockturtle/algorithms/emap.hpp b/include/mockturtle/algorithms/emap.hpp
@@ -721,18 +721,26 @@ template<class Ntk, unsigned CutSize, unsigned NInputs, classification_type Conf
 class emap_impl
 {
 private:
-  struct multi_match_data
+  union multi_match_data
   {
-    uint32_t node_index;
-    uint32_t cut_index;
-    bool in_tfi;
+    uint64_t data{ 0 };
+    struct
+    {
+      uint64_t in_tfi : 1;
+      uint64_t cut_index : 31;
+      uint64_t node_index : 32;
+    };
   };
-  struct multioutput_info
+  union multioutput_info
   {
-    uint32_t index : 29;
-    uint32_t lowest_index : 1;
-    uint32_t highest_index : 1;
-    uint32_t has_info : 1;
+    uint32_t data;
+    struct
+    {
+      unsigned index : 29;
+      unsigned lowest_index : 1;
+      unsigned highest_index : 1;
+      unsigned has_info : 1;
+    };
   };
 
 public:
@@ -3699,7 +3707,7 @@ class emap_impl
   {
     /* assume a single cut (current version) */
     uint32_t index = ntk.node_to_index( n );
-    multi_match_t& matches = multi_node_match[node_tuple_match[index].index].at( 0 );
+    multi_match_t& matches = multi_node_match[node_tuple_match[index].index][0];
 
     /* find the corresponding cut */
     uint32_t cut_p = 0;
@@ -3754,7 +3762,7 @@ class emap_impl
     /* reset matches */
     for ( multi_match_data const& entry : matches )
     {
-      node_tuple_match[entry.node_index] = { 0 };
+      node_tuple_match[entry.node_index].data = 0;
     }
   }
 
@@ -5235,10 +5243,8 @@ class emap_impl
       multi_match_data new_data1, new_data2;
       new_data1.node_index = index1;
       new_data1.cut_index = multi_cut_set.size() - 1;
-      new_data1.in_tfi = false;
       new_data2.node_index = index2;
       new_data2.cut_index = multi_cut_set.size() - 1;
-      new_data2.in_tfi = false;
       multi_match_t p = { new_data1, new_data2 };
 
       /* add cuts to the correct bucket */
@@ -5491,7 +5497,7 @@ class emap_impl
       if ( multi_is_in_tfi( ntk.index_to_node( index2 ), ntk.index_to_node( index1 ), cut ) )
       {
         /* if there is a path of length > 1 linking node 1 and 2, save as TFI node */
-        bool in_tfi = multi_is_in_direct_tfi( ntk.index_to_node( index2 ), ntk.index_to_node( index1 ) );
+        uint32_t in_tfi = multi_is_in_direct_tfi( ntk.index_to_node( index2 ), ntk.index_to_node( index1 ) ) ? 0 : 1;
         for ( auto& match : field )
           match[0].in_tfi = in_tfi;
         /* add a TFI dependency */
@@ -5559,7 +5565,7 @@ class emap_impl
         {
           /* fix cycle: remove multi-output match */
           choice_ntk.foreach_choice( repr, [&]( auto const& p ) {
-            node_tuple_match[ntk.node_to_index( p )] = { 0 };
+            node_tuple_match[ntk.node_to_index( p )].data = 0;
             return true;
           } );
           choice_ntk.remove_choice( g );