patch for r38021 of ruby

r38021-avoid2discard-orig_me.patch

diff --git a/method.h b/method.h
index 57a409f..2996775 100644
--- a/method.h
+++ b/method.h
@@ -22,7 +22,8 @@ typedef enum {
     NOEX_MODFUNC   = 0x12,
     NOEX_SUPER     = 0x20,
     NOEX_VCALL     = 0x40,
-    NOEX_RESPONDS  = 0x80
+    NOEX_RESPONDS  = 0x80,
+    NOEX_TEMPORARY = 0x100
 } rb_method_flag_t;
 
 #define NOEX_SAFE(n) ((int)((n) >> 8) & 0x0F)
diff --git a/vm_eval.c b/vm_eval.c
index 5959e93..b30b388 100644
--- a/vm_eval.c
+++ b/vm_eval.c
@@ -183,10 +183,10 @@ vm_call0_body(rb_thread_t* th, rb_call_info_t *ci, const VALUE *argv)
 	{
 	    if (ci->me->def->type == VM_METHOD_TYPE_REFINED &&
 		ci->me->def->body.orig_def) {
-		rb_method_entry_t orig_me;
-		orig_me = *ci->me;
-		orig_me.def = ci->me->def->body.orig_def;
-		ci->me = &orig_me;
+		rb_method_entry_t *orig_me = ALLOC(rb_method_entry_t);
+		*orig_me = *ci->me;
+		orig_me->def = ci->me->def->body.orig_def;
+		ci->me = orig_me;
 		goto again;
 	    }
 
diff --git a/vm_insnhelper.c b/vm_insnhelper.c
index d242097..8c66115 100644
--- a/vm_insnhelper.c
+++ b/vm_insnhelper.c
@@ -92,6 +92,9 @@ vm_push_frame(rb_thread_t *th,
 static inline void
 vm_pop_frame(rb_thread_t *th)
 {
+    if (th->cfp->me && th->cfp->me->flag & NOEX_TEMPORARY) {
+	xfree(th->cfp->me);
+    }
     th->cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(th->cfp);
 
     if (VMDEBUG == 2) {
@@ -1826,7 +1829,7 @@ vm_call_method(rb_thread_t *th, rb_control_frame_t *cfp, rb_call_info_t *ci)
 		NODE *cref = rb_vm_get_cref(cfp->iseq, cfp->ep);
 		VALUE refinements = cref ? cref->nd_refinements : Qnil;
 		VALUE refinement, defined_class;
-		rb_method_entry_t orig_me, *me;
+		rb_method_entry_t *orig_me, *me;
 		ci_temp = *ci;
 		ci = &ci_temp;
 
@@ -1851,9 +1854,11 @@ vm_call_method(rb_thread_t *th, rb_control_frame_t *cfp, rb_call_info_t *ci)
 
 	      no_refinement_dispatch:
 		if (ci->me->def->body.orig_def) {
-		    orig_me = *ci->me;
-		    orig_me.def = ci->me->def->body.orig_def;
-		    ci->me = &orig_me;
+		    orig_me = ALLOC(rb_method_entry_t);
+		    *orig_me = *ci->me;
+		    orig_me->flag |= NOEX_TEMPORARY;
+		    orig_me->def = ci->me->def->body.orig_def;
+		    ci->me = orig_me;
 		    goto normal_method_dispatch;
 		}
 		else {