From: Wolfgang Bumiller <blub@speed.at>
Date: Wed, 26 Dec 2012 09:28:01 +0000 (+0100)
Subject: manpage: -Ovoid-return
X-Git-Tag: before-library~491
X-Git-Url: https://git.xonotic.org/?a=commitdiff_plain;h=456e80a7d5b7309ce9409e2f1ab9224a039eb890;p=xonotic%2Fgmqcc.git

manpage: -Ovoid-return
---

diff --git a/doc/gmqcc.1 b/doc/gmqcc.1
index dbf5bab..bbaaaf3 100644
--- a/doc/gmqcc.1
+++ b/doc/gmqcc.1
@@ -416,6 +416,14 @@ unnecessary copying and unnecessary temporary values. This
 optimization makes operations which are used as a parameter evaluate
 directly into the parameter-global if that is possible, which is when
 there's no other CALL instruction in between.
+.TP
+.B -Ovoid-return
+Usually an empty RETURN instruction is added to the end of a void
+typed function. However, additionally after every function a DONE
+instruction is added for several reasons. (For example the qcvm's
+disassemble switch uses it to know when the function ends.). This
+optimization replaces that last RETURN with DONE rather than adding
+the DONE additionally.
 .SH CONFIG
 The configuration file is similar to regular .ini files. Comments
 start with hashtags or semicolons, sections are written in square