From 234a2b10fb48e11f66ddeee3cd27efa64f5f12c2 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Sat, 27 Jul 2024 17:45:28 +0900
Subject: [PATCH] mruby-bigint (mpz_neg): no need to check `x != y`

---
 mrbgems/mruby-bigint/core/bigint.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mrbgems/mruby-bigint/core/bigint.c b/mrbgems/mruby-bigint/core/bigint.c
index 6e62b3e97..211b062f9 100644
--- a/mrbgems/mruby-bigint/core/bigint.c
+++ b/mrbgems/mruby-bigint/core/bigint.c
@@ -863,8 +863,7 @@ mpz_div_2exp(mrb_state *mrb, mpz_t *z, mpz_t *x, mrb_int e)
 static void
 mpz_neg(mrb_state *mrb, mpz_t *x, mpz_t *y)
 {
-  if (x!=y)
-    mpz_set(mrb, x, y);
+  mpz_set(mrb, x, y);
   x->sn = -(y->sn);
 }