From 57a798e687e57c35fb8822c17a2007a4dd05df56 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Thu, 6 Aug 2020 11:26:54 +0900
Subject: Use `memset()` to clear stack unless `MRB_NAN_BOXING`.

---
 src/vm.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/src/vm.c b/src/vm.c
index c0a9ec6f1..cbf856d74 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -102,17 +102,13 @@ void mrb_method_missing(mrb_state *mrb, mrb_sym name, mrb_value self, mrb_value
 static inline void
 stack_clear(mrb_value *from, size_t count)
 {
-#ifndef MRB_NAN_BOXING
-  const mrb_value mrb_value_zero = { { 0 } };
-
-  while (count-- > 0) {
-    *from++ = mrb_value_zero;
-  }
-#else
+#ifdef MRB_NAN_BOXING
   while (count-- > 0) {
     SET_NIL_VALUE(*from);
     from++;
   }
+#else
+  memset(from, 0, sizeof(mrb_value)*count);
 #endif
 }
 
-- 
cgit v1.2.3