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ng_region: use small_color_map

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This commit is contained in:
Justin Viiret 2017-06-29 11:05:55 +10:00 committed by Matthew Barr
parent 1392be048a
commit 8982e7177c
1 changed files with 7 additions and 6 deletions
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13
src/nfagraph/ng_region.cpp
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@ -58,6 +58,7 @@
#include "util/container.h"
#include "util/ue2_containers.h"
#include "util/graph_range.h"
#include "util/graph_small_color_map.h"
#include <set>
#include <utility>
@ -407,19 +408,20 @@ void liftSinks(const AcyclicGraph &acyclic_g, vector<NFAVertex> &topoOrder) {
}
}
using ColorMap = decltype(make_small_color_map(NGHolder()));
/** Build a reverse topo ordering (with only the specials that are in use). We
* also want to ensure vertices which only lead to back edges are placed near
* their parents. */
static
vector<NFAVertex> buildTopoOrder(const NGHolder &w,
const AcyclicGraph &acyclic_g,
vector<boost::default_color_type> &colours) {
ColorMap &colours) {
vector<NFAVertex> topoOrder;
topoOrder.reserve(num_vertices(w));
topological_sort(acyclic_g, back_inserter(topoOrder),
color_map(make_iterator_property_map(colours.begin(),
get(vertex_index, acyclic_g))));
color_map(colours));
reorderSpecials(w, acyclic_g, topoOrder);
@ -443,15 +445,14 @@ unordered_map<NFAVertex, u32> assignRegions(const NGHolder &g) {
const u32 numVertices = num_vertices(g);
DEBUG_PRINTF("assigning regions for %u vertices in holder\n", numVertices);
vector<boost::default_color_type> colours(numVertices);
auto colours = make_small_color_map(g);
// Build an acyclic graph for this NGHolder.
BackEdgeSet deadEdges;
depth_first_search(g,
visitor(BackEdges<BackEdgeSet>(deadEdges))
.root_vertex(g.start)
.color_map(make_iterator_property_map(colours.begin(),
get(vertex_index, g))));
.color_map(colours));
auto af = make_bad_edge_filter(&deadEdges);
AcyclicGraph acyclic_g(g, af);