From d4cc77e7b6107b136e977e9b107b2d50aaa42314 Mon Sep 17 00:00:00 2001
From: Takashi Kokubun <takashikkbn@gmail.com>
Date: Thu, 25 Jan 2024 08:23:26 -0800
Subject: YJIT: Add a counter for invokebuiltin exits (#9696)

---
 yjit.rb             | 1 +
 yjit/src/codegen.rs | 2 ++
 yjit/src/stats.rs   | 2 ++
 3 files changed, 5 insertions(+)

diff --git a/yjit.rb b/yjit.rb
index c25ea8997d..06cb75adb1 100644
--- a/yjit.rb
+++ b/yjit.rb
@@ -271,6 +271,7 @@ module RubyVM::YJIT
         branchunless
         definedivar
         expandarray
+        invokebuiltin
         jump
         leave
         objtostring
diff --git a/yjit/src/codegen.rs b/yjit/src/codegen.rs
index 33298eed5c..06adbe8553 100644
--- a/yjit/src/codegen.rs
+++ b/yjit/src/codegen.rs
@@ -8786,6 +8786,7 @@ fn gen_invokebuiltin(
 
     // ec, self, and arguments
     if bf_argc + 2 > C_ARG_OPNDS.len() {
+        incr_counter!(invokebuiltin_too_many_args);
         return None;
     }
 
@@ -8825,6 +8826,7 @@ fn gen_opt_invokebuiltin_delegate(
 
     // ec, self, and arguments
     if bf_argc + 2 > (C_ARG_OPNDS.len() as i32) {
+        incr_counter!(invokebuiltin_too_many_args);
         return None;
     }
 
diff --git a/yjit/src/stats.rs b/yjit/src/stats.rs
index b6add639c1..7e83fa504f 100644
--- a/yjit/src/stats.rs
+++ b/yjit/src/stats.rs
@@ -468,6 +468,8 @@ make_counters! {
 
     setlocal_wb_required,
 
+    invokebuiltin_too_many_args,
+
     opt_plus_overflow,
     opt_minus_overflow,
     opt_mult_overflow,
-- 
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