From: Alexandre Oliva <aoliva@redhat.com>
Date: Mon, 28 Nov 2005 18:18:54 +0000 (+0000)
Subject: * varasm.c (ultimate_transparent_alias_target): Add comment.
X-Git-Tag: releases/gcc-4.2.0~5701
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2979bcca5d3e5ceb954abf3333a7786fd2c0b5b0;p=thirdparty%2Fgcc.git

* varasm.c (ultimate_transparent_alias_target): Add comment.

From-SVN: r107611
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 2cd58cfe2993..789042d00779 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2005-11-28  Alexandre Oliva  <aoliva@redhat.com>
+
+	* varasm.c (ultimate_transparent_alias_target): Add comment.
+
 2005-11-28  Kazu Hirata  <kazu@codesourcery.com>
 
 	* config/m68k/m68k.c (notice_update_cc): Use SET_DEST and
diff --git a/gcc/varasm.c b/gcc/varasm.c
index 68a46eab5e29..fa181e17f1ec 100644
--- a/gcc/varasm.c
+++ b/gcc/varasm.c
@@ -1996,6 +1996,14 @@ mark_decl_referenced (tree decl)
      which do not need to be marked.  */
 }
 
+
+/* Follow the IDENTIFIER_TRANSPARENT_ALIAS chain starting at *ALIAS
+   until we find an identifier that is not itself a transparent alias.
+   Modify the alias passed to it by reference (and all aliases on the
+   way to the ultimate target), such that they do not have to be
+   followed again, and return the ultimate target of the alias
+   chain.  */
+
 static inline tree
 ultimate_transparent_alias_target (tree *alias)
 {