nobu	2018-03-04 10:52:19 +0900 (Sun, 04 Mar 2018)

  New Revision: 62648

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=62648

  Log:
    vm_exec.c: reduced repeated same calls

  Modified files:
    trunk/vm_exec.c
Index: vm_exec.c
===================================================================
--- vm_exec.c	(revision 62647)
+++ vm_exec.c	(revision 62648)
@@ -143,7 +143,7 @@ static VALUE https://github.com/ruby/ruby/blob/trunk/vm_exec.c#L143
 vm_exec_core(rb_execution_context_t *ec, VALUE initial)
 {
     register rb_control_frame_t *reg_cfp = ec->cfp;
-    rb_thread_t *th = rb_ec_thread_ptr(ec);
+    rb_thread_t *th;
 
     while (1) {
 	reg_cfp = ((rb_insn_func_t) (*GET_PC()))(ec, reg_cfp);
@@ -153,9 +153,9 @@ vm_exec_core(rb_execution_context_t *ec, https://github.com/ruby/ruby/blob/trunk/vm_exec.c#L153
 	}
     }
 
-    if (rb_ec_thread_ptr(ec)->retval != Qundef) {
+    if ((th = rb_ec_thread_ptr(ec))->retval != Qundef) {
 	VALUE ret = th->retval;
-	rb_ec_thread_ptr(ec)->retval = Qundef;
+	th->retval = Qundef;
 	return ret;
     }
     else {

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