From 128ea3cf283ba2ac0af699543c8e037cc9bfc0a5 Mon Sep 17 00:00:00 2001
From: Mike Inouye <mikesinouye@gmail.com>
Date: Fri, 9 Jan 2026 10:49:00 -0700
Subject: [PATCH] Use Map with a deterministic instance power iterator (#359)

* Use deterministic instance power iterator

* Use deterministic instance power iterator

* Use std::map instead of sta::Map
---
 power/Power.cc | 1 +
 power/Power.hh | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/power/Power.cc b/power/Power.cc
index 8a9aed76..3265fe96 100644
--- a/power/Power.cc
+++ b/power/Power.cc
@@ -101,6 +101,7 @@ Power::Power(StaState *sta) :
   seq_activity_map_(100, SeqPinHash(network_), SeqPinEqual()),
   activities_valid_(false),
   bdd_(sta),
+  instance_powers_(InstanceIdLess(network_)),
   instance_powers_valid_(false),
   corner_(nullptr)
 {
diff --git a/power/Power.hh b/power/Power.hh
index 5c45fd60..abed2f40 100644
--- a/power/Power.hh
+++ b/power/Power.hh
@@ -238,7 +238,7 @@ private:
   PwrSeqActivityMap seq_activity_map_;
   bool activities_valid_;
   Bdd bdd_;
-  std::map<const Instance*, PowerResult> instance_powers_;
+  std::map<const Instance*, PowerResult, InstanceIdLess> instance_powers_;
   bool instance_powers_valid_;
   const Corner *corner_;