atomicity.h (__compare_and_swap): Remove unused function.

[gcc.git] / libstdc++-v3 / config / cpu / sparc / sparc64 / bits / atomicity.h

diff --git a/libstdc++-v3/config/cpu/sparc/sparc64/bits/atomicity.h b/libstdc++-v3/config/cpu/sparc/sparc64/bits/atomicity.h
index c2dc0dc69b0014ee5481c06109e432ec87acc7c8..e13ca82fad2ddea7783d7934e0da38bc1bf937fc 100644 (file)
--- a/libstdc++-v3/config/cpu/sparc/sparc64/bits/atomicity.h
+++ b/libstdc++-v3/config/cpu/sparc/sparc64/bits/atomicity.h
@@ -67,27 +67,4 @@ __atomic_add (volatile _Atomic_word* __mem, int __val)
                       : "memory");
 }
 
-static inline int
-__attribute__ ((__unused__))
-__compare_and_swap (volatile long *__p, long __oldval, long __newval)
-{
-  register int __tmp;
-  register long __tmp2;
-
-  __asm__ __volatile__("1:     ldx     [%4], %0\n\t"
-                      "        mov     %2, %1\n\t"
-                      "        cmp     %0, %3\n\t"
-                      "        bne,a,pn %%xcc, 2f\n\t"
-                      "         mov    0, %0\n\t"
-                      "        casx    [%4], %0, %1\n\t"
-                      "        sub     %0, %1, %0\n\t"
-                      "        brnz,pn %0, 1b\n\t"
-                      "         mov    1, %0\n\t"
-                      "2:"
-                      : "=&r" (__tmp), "=&r" (__tmp2)
-                      : "r" (__newval), "r" (__oldval), "r" (__p)
-                      : "memory");
-  return __tmp;
-}
-
 #endif /* atomicity.h */