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 3569d6c27c9e9a32ad427d0ed1677c14299b649e..40b3a95dddfb7f5ccf6c7ac5f9dde738cb29a784 100644 (file)
--- 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 48c8283a544652c8f806797873d9be889edcd124..3f711d13bbe3439b6ba714ba881050f5fa635321 100644 (file)
--- 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.  */