From 485d04253fcc3320f3f2c1d7eadf7049b84a9d24 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 29 Mar 2015 02:47:24 +0000
Subject: [PATCH] vm.c: use MEMCPY

* vm.c (vm_make_env_each): use MEMCPY instead of copy by loop.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50108 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 vm.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/vm.c b/vm.c
index 74fa78be9d..4b6e0c7225 100644
--- a/vm.c
+++ b/vm.c
@@ -512,16 +512,17 @@ vm_make_env_each(const rb_thread_t *const th, rb_control_frame_t *const cfp,
     env->env_size = local_size + 1 + 1;
     env->local_size = local_size;
 
-    for (i = 0; i <= local_size; i++) {
-	env->env[i] = envptr[-local_size + i];
+    i = local_size + 1;
+    MEMCPY(env->env, envptr - local_size, VALUE, i);
 #if 0
+    for (i = 0; i <= local_size; i++) {
 	fprintf(stderr, "%2d ", &envptr[-local_size + i] - th->stack); dp(env->env[i]);
 	if (RUBY_VM_NORMAL_ISEQ_P(cfp->iseq)) {
 	    /* clear value stack for GC */
 	    envptr[-local_size + i] = 0;
 	}
-#endif
     }
+#endif
 
     /* be careful not to trigger GC after this */
     envval = TypedData_Wrap_Struct(rb_cEnv, &env_data_type, env);