partial revert

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33115 72102866-910b-0410-8b05-ffd578937521

ChangeLog

@@ -1,3 +1,9 @@
+2011-05-25  Richard Frith-Macdonald <rfm@gnu.org>
+
+	* Source/NSObject.m:
+	Make last assembler attempt conditional ... I'm far from sure it's
+	correct.
+
 2011-05-25 11:15  David Chisnall <theraven@gna.org>
 
 	* Headers/Foundation/NSZone.h,
@@ -11,9 +17,9 @@
 	NSNotificationCenter use weak pointers (things are never removed if it
 	uses strong pointers because they remove themselves in the -dealloc
 	method, which is never called, and can't remove themselves in the
-	  -finalize method because the -finalize method would not be called until
-	  after they have been removed - this is consistent with Apple behaviour).
-	  
+	-finalize method because the -finalize method would not be called
+	until after they have been removed - this is consistent with Apple
+	behaviour).
 	Gorm now works correctly when built with GC enabled.
 
 2011-05-25  Richard Frith-Macdonald <rfm@gnu.org>

Source/NSObject.m

@@ -226,7 +226,8 @@ typedef int32_t volatile *gsatomic_t;
 
 #define	GSATOMICREAD(X)	(*(X))
 
-int
+#ifdef	ATOMICTEST
+static __inline__ int
 GSAtomicIncrement(gsatomic_t X)
 {
   int32_t tmp = 1;
@@ -238,7 +239,7 @@ GSAtomicIncrement(gsatomic_t X)
  return tmp;
 }
 
-int
+static __inline__ int
 GSAtomicDecrement(gsatomic_t X)
 {
   int32_t tmp = -1;
@@ -249,6 +250,27 @@ GSAtomicDecrement(gsatomic_t X)
     :"memory" );
  return tmp;
 }
+#else
+
+static __inline__ int
+GSAtomicIncrement(gsatomic_t X)
+{
+ __asm__ __volatile__ (
+     "lock addl $1, %0"
+     :"=m" (*X));
+ return *X;
+}
+
+static __inline__ int
+GSAtomicDecrement(gsatomic_t X)
+{
+ __asm__ __volatile__ (
+     "lock subl $1, %0"
+     :"=m" (*X));
+ return *X;
+}
+
+#endif
 
 #elif defined(__PPC__) || defined(__POWERPC__)