atomicity.h (__compare_and_swap): Remove unused function.

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

diff --git a/libstdc++-v3/config/cpu/mips/bits/atomicity.h b/libstdc++-v3/config/cpu/mips/bits/atomicity.h
index cab43eb0d26671e60ee320f27b7f57604e948970..7878c6eeb91153f1b7bdd2d62d2e50724292ef9c 100644 (file)
--- a/libstdc++-v3/config/cpu/mips/bits/atomicity.h
+++ b/libstdc++-v3/config/cpu/mips/bits/atomicity.h
@@ -75,31 +75,4 @@ __atomic_add (volatile _Atomic_word *__mem, int __val)
      : "memory");
 }
 
-static inline int
-__attribute__ ((unused))
-__compare_and_swap (volatile long int *__p, long int __oldval,
-                   long int __newval)
-{
-  long int __ret;
-
-  __asm__ __volatile__
-    ("/* Inline compare & swap */\n\t"
-     "1:\n\t"
-     "ll       %0,%4\n\t"
-     ".set     push\n"
-     ".set     noreorder\n\t"
-     "bne      %0,%2,2f\n\t"
-     "move     %0,%3\n\t"
-     ".set     pop\n\t"
-     "sc       %0,%1\n\t"
-     "beqz     %0,1b\n"
-     "2:\n\t"
-     "/* End compare & swap */"
-     : "=&r" (__ret), "=m" (*__p)
-     : "r" (__oldval), "r" (__newval), "m" (*__p)
-     : "memory");
-
-  return __ret;
-}
-
 #endif /* atomicity.h */