vm.c: fetch retval iff necessary

* vm.c (rb_vm_make_jump_tag_but_local_jump): get rid of fetching
  retval when it is not used.  it is necessary for local jump
  state only.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60024 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 0 deletions

diff --git a/load.c b/load.c
index eec5e98947..d2ed55fed2 100644
--- a/load.c
+++ b/load.c
@@ -627,6 +627,8 @@ rb_load_internal0(rb_thread_t *th, VALUE fname, int wrap)
     th->top_wrapper = wrapper;
 
     if (state) {
+	/* usually state == TAG_RAISE only, except for
+	 * rb_iseq_load_iseq case */
 	VALUE exc = rb_vm_make_jump_tag_but_local_jump(state, Qundef);
 	if (NIL_P(exc)) return state;
 	th->ec.errinfo = exc;