From 7d93ec3984374378633e8b47eabd50483ab4a17e Mon Sep 17 00:00:00 2001
From: Anton Korobeynikov <anton@korobeynikov.info>
Date: Tue, 27 Feb 2024 17:22:04 -0800
Subject: [PATCH] Address review comments

---
 frontends/p4/simplifyDefUse.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/frontends/p4/simplifyDefUse.cpp b/frontends/p4/simplifyDefUse.cpp
index cedf51c5ade..c72a5d050ad 100644
--- a/frontends/p4/simplifyDefUse.cpp
+++ b/frontends/p4/simplifyDefUse.cpp
@@ -23,6 +23,7 @@ limitations under the License.
 #include "frontends/p4/sideEffects.h"
 #include "frontends/p4/tableApply.h"
 #include "frontends/p4/ternaryBool.h"
+#include "lib/hash.h"
 
 namespace P4 {
 
@@ -31,10 +32,9 @@ namespace {
 class HasUses {
     // Set of program points whose left-hand sides are used elsewhere
     // in the program together with their use count
-    absl::flat_hash_set<const IR::Node *> used;
+    absl::flat_hash_set<const IR::Node *, Util::Hash> used;
 
     class SliceTracker {
-        // FIXME: Can squeeze this bool into lower bit of pointer
         const IR::Slice *trackedSlice = nullptr;
         bool active = false;
         bool overwritesPrevious(const IR::Slice *previous) {