From f923328821e2e835c725822bce2aac6e10c52dd9 Mon Sep 17 00:00:00 2001
From: Jim Wilson <jimw@sifive.com>
Date: Wed, 29 Nov 2017 10:22:26 -0800
Subject: In x86 -n docs, mention that you need an explicit nop fill byte.

	gas/
	PR gas/22464
	* doc/c-i386.texi (-n): Clarify docs.
---
 gas/ChangeLog       | 5 +++++
 gas/doc/c-i386.texi | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)

(limited to 'gas')

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 0512f23..8124043 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,8 @@
+2017-11-29  Jim Wilson  <jimw@sifive.com>
+
+	PR gas/22464
+	* doc/c-i386.texi (-n): Clarify docs.
+
 2017-11-29  Renlin Li  <renlin.li@arm.com>
 
 	* config/tc-aarch64.c (reg_names): Fix IP1 register alias typo.
diff --git a/gas/doc/c-i386.texi b/gas/doc/c-i386.texi
index a1d33bd..a0e280c 100644
--- a/gas/doc/c-i386.texi
+++ b/gas/doc/c-i386.texi
@@ -74,7 +74,8 @@ usage and use x86-64 as target platform).
 @item -n
 By default, x86 GAS replaces multiple nop instructions used for
 alignment within code sections with multi-byte nop instructions such
-as leal 0(%esi,1),%esi.  This switch disables the optimization.
+as leal 0(%esi,1),%esi.  This switch disables the optimization if a single
+byte nop (0x90) is explicitly specified as the fill byte for alignment.
 
 @cindex @samp{--divide} option, i386
 @item --divide
-- 
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