Fix sparc asm code for gcc prior to 3.2

Original commit message from CVS:
Fix sparc asm code for gcc prior to 3.2

diff --git a/gst/gstatomic_impl.h b/gst/gstatomic_impl.h
index 4945fce..bcb1777 100644 (file)
--- a/gst/gstatomic_impl.h
+++ b/gst/gstatomic_impl.h
@@ -253,6 +253,7 @@ gst_atomic_int_add (GstAtomicInt *aint, gint val)
 
   ptr = &(aint->counter);
 
+#if __GNUC__ > 3 || (__GNUC__ >=3 && __GNUC_MINOR__ >= 2)
  __asm__ __volatile__("1: ldstub [%[ptr] + 3], %[lock]\n"
                      "\torcc %[lock], 0, %%g0\n"
                      "\tbne 1b\n" /* go back until we have the lock */
@@ -264,6 +265,19 @@ gst_atomic_int_add (GstAtomicInt *aint, gint val)
                      : [inc] "=&r" (increment), [lock] "=r" (lock)
                      : "0" (increment), [ptr] "r" (ptr), [val] "r" (val)
                      );
+#else
+ __asm__ __volatile__("1: ldstub [%3 + 3], %1\n"
+                     "\torcc %1, 0, %%g0\n"
+                     "\tbne 1b\n" /* go back until we have the lock */
+                     "\tld [%3], %0\n"
+                     "\tsra %0, 8, %0\n"
+                     "\tadd %0, %4, %0\n"
+                     "\tsll %0, 8, %1\n"
+                     "\tst %1,[%3]\n" /* Release the lock */
+                     : "=&r" (increment), "=r" (lock)
+                     : "0" (increment), "r" (ptr), "r" (val)
+                     );
+#endif
 }
 
 GST_INLINE_FUNC void