From ff3fe27a3077591762c2caf789cbf476045d073b Mon Sep 17 00:00:00 2001
From: Sathya Gunasekaran <gsathya@chromium.org>
Date: Tue, 5 Jan 2021 16:57:49 +0000
Subject: [PATCH] [runtime] Add RCS counter for UpdateProtector

Bug: v8:11256
Change-Id: Iec03fc77daeed9aeaacde13f5be2304d2a7e2c26
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2610969
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71958}
---
 src/logging/counters.h   | 1 +
 src/objects/lookup-inl.h | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/src/logging/counters.h b/src/logging/counters.h
index e6cdf265a7..f1a7595a34 100644
--- a/src/logging/counters.h
+++ b/src/logging/counters.h
@@ -1040,6 +1040,7 @@ class RuntimeCallTimer final {
   V(PrototypeMap_TransitionToDataProperty)     \
   V(PrototypeObject_DeleteProperty)            \
   V(ReconfigureToDataProperty)                 \
+  V(UpdateProtector)                           \
   V(StringLengthGetter)                        \
   V(TestCounter1)                              \
   V(TestCounter2)                              \
diff --git a/src/objects/lookup-inl.h b/src/objects/lookup-inl.h
index 2339606a45..d38be27fca 100644
--- a/src/objects/lookup-inl.h
+++ b/src/objects/lookup-inl.h
@@ -9,6 +9,7 @@
 
 #include "src/handles/handles-inl.h"
 #include "src/heap/factory-inl.h"
+#include "src/logging/counters.h"
 #include "src/objects/api-callbacks.h"
 #include "src/objects/internal-index.h"
 #include "src/objects/map-inl.h"
@@ -205,6 +206,8 @@ bool LookupIterator::IsCacheableTransition() {
 // static
 void LookupIterator::UpdateProtector(Isolate* isolate, Handle<Object> receiver,
                                      Handle<Name> name) {
+  RuntimeCallTimerScope scope(isolate, RuntimeCallCounterId::kUpdateProtector);
+
   // This list must be kept in sync with
   // CodeStubAssembler::CheckForAssociatedProtector!
   ReadOnlyRoots roots(isolate);