From 519d40d13f3b40a9cbd4f6f421542bf98cfcec8a Mon Sep 17 00:00:00 2001
From: kazu <kazu@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 2 Dec 2004 02:49:29 +0000
Subject: [PATCH] 	* tree-phinodes.c (remove_phi_arg_num): Fix a comment.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@91608 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/ChangeLog       | 4 ++++
 gcc/tree-phinodes.c | 8 ++++----
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 88593cfee8e1..d6cfd717c7d1 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2004-12-02  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* tree-phinodes.c (remove_phi_arg_num): Fix a comment.
+
 2004-12-02  Alan Modra  <amodra@bigpond.net.au>
 
 	PR target/16952
diff --git a/gcc/tree-phinodes.c b/gcc/tree-phinodes.c
index dc37066969b2..91bff61b1e0b 100644
--- a/gcc/tree-phinodes.c
+++ b/gcc/tree-phinodes.c
@@ -360,10 +360,10 @@ add_phi_arg (tree phi, tree def, edge e)
   PHI_ARG_NONZERO (phi, e->dest_idx) = false;
 }
 
-/* Remove the Ith argument from PHI's argument list.  This routine assumes
-   ordering of alternatives in the vector is not important and implements
-   removal by swapping the last alternative with the alternative we want to
-   delete, then shrinking the vector.  */
+/* Remove the Ith argument from PHI's argument list.  This routine
+   implements removal by swapping the last alternative with the
+   alternative we want to delete and then shrinking the vector, which
+   is consistent with how we remove an edge from the edge vector.  */
 
 static void
 remove_phi_arg_num (tree phi, int i)
-- 
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