From 886055b3fb047839abe13b03dd44d9e35c35d5b0 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Sat, 21 Aug 2021 14:33:59 +0900
Subject: etc.c: clear `mrb_value` if `sizeof(void*)` is bigger than
 `sizeof(mrb_float)`.

---
 src/etc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/etc.c b/src/etc.c
index 4d08ba400..f2dfac9fb 100644
--- a/src/etc.c
+++ b/src/etc.c
@@ -159,6 +159,9 @@ mrb_word_boxing_float_value(mrb_state *mrb, mrb_float f)
   union mrb_value_ v;
 
 #ifndef MRB_USE_FLOAT_FULL_PRECISION
+#if defined(MRB_64BIT) && defined(MRB_USE_FLOAT32)
+  v.w = 0;
+#endif
   v.f = f;
   v.w = (v.w & ~3) | 2;
 #else
-- 
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