vm_insnhelper.c: getivar setivar optimization

* vm_insnhelper.c (vm_getivar, vm_setivar): remove inline.

* vm_insnhelper.c (vm_call_ivar, vm_call_attrset): tweak the order
  tail-call-optimization friendly.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54732 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

vm_insnhelper.c

@@ -774,7 +774,7 @@ vm_search_const_defined_class(const VALUE cbase, ID id)
 #define USE_IC_FOR_IVAR 1
 #endif
 
-static inline VALUE
+static VALUE
 vm_getivar(VALUE obj, ID id, IC ic, struct rb_call_cache *cc, int is_attr)
 {
 #if USE_IC_FOR_IVAR
@@ -824,7 +824,7 @@ vm_getivar(VALUE obj, ID id, IC ic, struct rb_call_cache *cc, int is_attr)
     return rb_ivar_get(obj, id);
 }
 
-static inline VALUE
+static VALUE
 vm_setivar(VALUE obj, ID id, VALUE val, IC ic, struct rb_call_cache *cc, int is_attr)
 {
 #if USE_IC_FOR_IVAR
@@ -1733,17 +1733,16 @@ vm_call_cfunc(rb_thread_t *th, rb_control_frame_t *reg_cfp, struct rb_calling_in
 static VALUE
 vm_call_ivar(rb_thread_t *th, rb_control_frame_t *cfp, struct rb_calling_info *calling, const struct rb_call_info *ci, struct rb_call_cache *cc)
 {
-    VALUE val = vm_getivar(calling->recv, cc->me->def->body.attr.id, NULL, cc, 1);
     cfp->sp -= 1;
-    return val;
+    return vm_getivar(calling->recv, cc->me->def->body.attr.id, NULL, cc, 1);
 }
 
 static VALUE
 vm_call_attrset(rb_thread_t *th, rb_control_frame_t *cfp, struct rb_calling_info *calling, const struct rb_call_info *ci, struct rb_call_cache *cc)
 {
-    VALUE val = vm_setivar(calling->recv, cc->me->def->body.attr.id, *(cfp->sp - 1), NULL, cc, 1);
+    VALUE val = *(cfp->sp - 1);
     cfp->sp -= 2;
-    return val;
+    return vm_setivar(calling->recv, cc->me->def->body.attr.id, val, NULL, cc, 1);
 }
 
 static inline VALUE