From: Nicholas Clark <nick@ccl4.org>
Date: Thu, 4 Nov 2010 14:21:05 +0000 (+0000)
Subject: Create &B::{IV,PV}::as_string using typeglob assignment rather than goto &
X-Git-Tag: accepted/trunk/20130322.191538~6936
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0e4a84deaa95967a479c4ba292f52f944552cb1f;p=platform%2Fupstream%2Fperl.git

Create &B::{IV,PV}::as_string using typeglob assignment rather than goto &

Typeglob assignment avoids compiler work creating the optree for a second
subroutine, and runtime work executing that optree.
---

diff --git a/ext/B/B.pm b/ext/B/B.pm
index 4cd5545..587b809 100644
--- a/ext/B/B.pm
+++ b/ext/B/B.pm
@@ -105,8 +105,8 @@ sub B::IV::int_value {
 }
 
 sub B::NULL::as_string() {""}
-sub B::IV::as_string()   {goto &B::IV::int_value}
-sub B::PV::as_string()   {goto &B::PV::PV}
+*B::IV::as_string = \&B::IV::int_value;
+*B::PV::as_string = \&B::PV::PV;
 
 my $debug;
 my $op_count = 0;