From 1481d34959bf17136775b2be7167339e09552bb7 Mon Sep 17 00:00:00 2001
From: Geza Lore <gezalore@gmail.com>
Date: Sat, 9 Mar 2024 20:21:44 +0000
Subject: [PATCH] Add candidate item count to MergeCond stats

---
 src/V3MergeCond.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/V3MergeCond.cpp b/src/V3MergeCond.cpp
index c743c4ad3..6bd1ea098 100644
--- a/src/V3MergeCond.cpp
+++ b/src/V3MergeCond.cpp
@@ -439,6 +439,7 @@ class MergeCondVisitor final : public VNVisitor {
     // STATE
     VDouble0 m_statMerges;  // Statistic tracking
     VDouble0 m_statMergedItems;  // Statistic tracking
+    VDouble0 m_statCandidateItems;  // Statistic tracking
     VDouble0 m_statLongestList;  // Statistic tracking
 
     AstNode* m_mgFirstp = nullptr;  // First node in merged sequence
@@ -784,6 +785,8 @@ class MergeCondVisitor final : public VNVisitor {
         m_mgNextp = nodep->nextp();
         // If last under parent, done with current list
         if (!m_mgNextp) mergeEnd();
+        // Statistics
+        ++m_statCandidateItems;
         // We did add to the list
         return true;
     }
@@ -871,6 +874,7 @@ public:
     explicit MergeCondVisitor(AstNetlist* nodep) { iterate(nodep); }
     ~MergeCondVisitor() override {
         V3Stats::addStat("Optimizations, MergeCond merges", m_statMerges);
+        V3Stats::addStat("Optimizations, MergeCond candidate items", m_statCandidateItems);
         V3Stats::addStat("Optimizations, MergeCond merged items", m_statMergedItems);
         V3Stats::addStat("Optimizations, MergeCond longest merge", m_statLongestList);
     }