From ddce7c35f46ad4644d6f6e48817daf7a92804144 Mon Sep 17 00:00:00 2001
From: Dmitriy Vyukov <dvyukov@google.com>
Date: Wed, 20 Aug 2014 12:58:01 +0400
Subject: [PATCH] runtime: add atomicor8 for amd64p32

LGTM=khr
R=golang-codereviews, daniel.morsing, khr, rsc
CC=golang-codereviews, khr, rlh
https://golang.org/cl/131950043
---
 src/pkg/runtime/asm_amd64p32.s | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/pkg/runtime/asm_amd64p32.s b/src/pkg/runtime/asm_amd64p32.s
index 71ea4f385a..3e84d95d3f 100644
--- a/src/pkg/runtime/asm_amd64p32.s
+++ b/src/pkg/runtime/asm_amd64p32.s
@@ -660,6 +660,14 @@ TEXT runtime·atomicstore64(SB), NOSPLIT, $0-16
 	XCHGQ	AX, 0(BX)
 	RET
 
+// void	runtime·atomicor8(byte volatile*, byte);
+TEXT runtime·atomicor8(SB), NOSPLIT, $0-8
+	MOVL	ptr+0(FP), BX
+	MOVB	val+4(FP), AX
+	LOCK
+	ORB	AX, 0(BX)
+	RET
+
 // void jmpdefer(fn, sp);
 // called from deferreturn.
 // 1. pop the caller
-- 
2.48.1