From: ckb <ckb@isc.org>
Date: Fri, 17 Aug 2012 18:07:55 +0000 (-0500)
Subject: 3366.	[bug]		Fixed Read-After-Write dependency violation for IA64
X-Git-Tag: v9.7.7rc1~28
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1d64f8f33e731b8d903311ee1536f5992ec360b0;p=thirdparty%2Fbind9.git

3366.	[bug]		Fixed Read-After-Write dependency violation for IA64
			atomic operations. [RT #25181]
---

diff --git a/CHANGES b/CHANGES
index b0a695642f0..2ec7a4645fb 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+3366.	[bug]		Fixed Read-After-Write dependency violation for IA64 
+			atomic operations. [RT #25181]
+
 3365.	[bug]		Removed spurious newlines from log messages in
 			zone.c [RT #30675]
 
diff --git a/lib/isc/ia64/include/isc/atomic.h b/lib/isc/ia64/include/isc/atomic.h
index 6c22f2a53e2..74df4c5b8c0 100644
--- a/lib/isc/ia64/include/isc/atomic.h
+++ b/lib/isc/ia64/include/isc/atomic.h
@@ -41,7 +41,7 @@ isc_atomic_xadd(isc_int32_t *p, isc_int32_t val)
 	for (prev = *(volatile isc_int32_t *)p; ; prev = swapped) {
 		swapped = prev + val;
 		__asm__ volatile(
-			"mov ar.ccv=%2;"
+			"mov ar.ccv=%2;;"
 			"cmpxchg4.acq %0=%4,%3,ar.ccv"
 			: "=r" (swapped), "=m" (*p)
 			: "r" (prev), "r" (swapped), "m" (*p)
@@ -84,7 +84,7 @@ isc_atomic_cmpxchg(isc_int32_t *p, isc_int32_t cmpval, isc_int32_t val)
 	isc_int32_t ret;
 
 	__asm__ volatile(
-		"mov ar.ccv=%2;"
+		"mov ar.ccv=%2;;"
 		"cmpxchg4.acq %0=%4,%3,ar.ccv"
 		: "=r" (ret), "=m" (*p)
 		: "r" (cmpval), "r" (val), "m" (*p)