From: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Date: Fri, 20 Aug 2004 16:08:49 +0000 (+0000)
Subject: atomicity.h (__exchange_and_add, [...]): Add memory barrier to locking asm.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=dd8b67a1a87d69e5204da7bb0cb8dabaea839650;p=gcc.git

atomicity.h (__exchange_and_add, [...]): Add memory barrier to locking asm.

	* cpu/hppa/atomicity.h (__exchange_and_add, __atomic_add): Add memory
	barrier to locking asm.

From-SVN: r86328
---

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 3569d6c27c9..40b3a95dddf 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,8 @@
+2004-08-20  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
+
+	* cpu/hppa/atomicity.h (__exchange_and_add, __atomic_add): Add memory
+	barrier to locking asm.
+
 2004-08-20  Paolo Carlini  <pcarlini@suse.de>
 
 	* include/c_std/cmath.tcc (__cmath_power): Revert previous commit:
diff --git a/libstdc++-v3/config/cpu/hppa/atomicity.h b/libstdc++-v3/config/cpu/hppa/atomicity.h
index 48c8283a544..3f711d13bbe 100644
--- a/libstdc++-v3/config/cpu/hppa/atomicity.h
+++ b/libstdc++-v3/config/cpu/hppa/atomicity.h
@@ -61,7 +61,8 @@ namespace __gnu_cxx
 			  "nop\n\t"
 			  "b,n .-20"
 			  : "=&r" (tmp)
-			  : "r" (&lock));
+			  : "r" (&lock)
+			  : "memory");
     
     result = *__mem;
     *__mem = result + __val;
@@ -85,7 +86,8 @@ namespace __gnu_cxx
 			  "nop\n\t"
 			  "b,n .-20"
 			  : "=&r" (tmp)
-			  : "r" (&lock));
+			  : "r" (&lock)
+			  : "memory");
     
     *__mem += __val;
     /* Reset lock with PA 2.0 "ordered" store.  */