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ng_violet: fail on added_count limit quicker

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- also fixes typo "splitForImplementability"
- adds more detail in debug output
This commit is contained in:
Justin Viiret 2017-06-26 16:17:25 +10:00 committed by Matthew Barr
parent cdb281df42
commit e8f09aa8c6
1 changed files with 17 additions and 11 deletions
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24
src/nfagraph/ng_violet.cpp
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@ -1198,7 +1198,8 @@ void splitEdgesByCut(NGHolder &h, RoseInGraph &vg,
const vector<RoseInEdge> &to_cut,
const vector<NFAEdge> &cut,
const map<NFAEdge, set<ue2_literal>> &cut_lits) {
DEBUG_PRINTF("splitting %s:\n", to_string(h.kind).c_str());
DEBUG_PRINTF("splitting %s (%zu vertices)\n", to_string(h.kind).c_str(),
num_vertices(h));
/* create literal vertices and connect preds */
unordered_set<RoseInVertex> done_sources;
@ -1233,7 +1234,9 @@ void splitEdgesByCut(NGHolder &h, RoseInGraph &vg,
renumber_vertices(*new_lhs);
renumber_edges(*new_lhs);
DEBUG_PRINTF(" into lhs %s\n", to_string(new_lhs->kind).c_str());
DEBUG_PRINTF(" into lhs %s (%zu vertices)\n",
to_string(new_lhs->kind).c_str(),
num_vertices(*new_lhs));
assert(hasCorrectlyNumberedVertices(*new_lhs));
assert(hasCorrectlyNumberedEdges(*new_lhs));
@ -1301,8 +1304,9 @@ void splitEdgesByCut(NGHolder &h, RoseInGraph &vg,
remove_edge(new_rhs->start, new_rhs->accept, *new_rhs);
remove_edge(new_rhs->start, new_rhs->acceptEod, *new_rhs);
renumber_edges(*new_rhs);
DEBUG_PRINTF(" into rhs %s\n",
to_string(new_rhs->kind).c_str());
DEBUG_PRINTF(" into rhs %s (%zu vertices)\n",
to_string(new_rhs->kind).c_str(),
num_vertices(*new_rhs));
done_rhs.emplace(adj, new_rhs);
assert(isCorrectlyTopped(*new_rhs));
}
@ -2828,7 +2832,7 @@ bool doEarlyDfa(RoseBuild &rose, RoseInGraph &vg, NGHolder &h,
#define MAX_EDGES_FOR_IMPLEMENTABILITY 50
static
bool splitForImplementabilty(RoseInGraph &vg, NGHolder &h,
bool splitForImplementability(RoseInGraph &vg, NGHolder &h,
const vector<RoseInEdge> &edges,
const CompileContext &cc) {
vector<pair<ue2_literal, u32>> succ_lits;
@ -2912,8 +2916,12 @@ bool ensureImplementable(RoseBuild &rose, RoseInGraph &vg, bool allow_changes,
return false;
}
if (splitForImplementabilty(vg, *h, edges_by_graph[h], cc)) {
if (splitForImplementability(vg, *h, edges_by_graph[h], cc)) {
added_count++;
if (added_count > MAX_IMPLEMENTABLE_SPLITS) {
DEBUG_PRINTF("added_count hit limit\n");
return false;
}
changed = true;
continue;
}
@ -2921,9 +2929,7 @@ bool ensureImplementable(RoseBuild &rose, RoseInGraph &vg, bool allow_changes,
return false;
}
if (added_count > MAX_IMPLEMENTABLE_SPLITS) {
return false;
}
assert(added_count <= MAX_IMPLEMENTABLE_SPLITS);
if (changed) {
removeRedundantLiterals(vg, cc);