* gc.c (ATOMIC_SIZE_*): 64bit Windows support.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36303 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 13 insertions, 5 deletions

diff --git a/gc.c b/gc.c
index 82e250bdb6..72a2e2b575 100644
--- a/gc.c
+++ b/gc.c
@@ -61,11 +61,19 @@
 #endif
 
 #if defined _WIN32
-# define ATOMIC_SIZE_ADD(var, val) InterlockedExchangeAdd(&(var), (val))
-# define ATOMIC_SIZE_SUB(var, val) InterlockedExchangeAdd(&(var), -(val))
-# define ATOMIC_SIZE_INC(var) InterlockedIncrement(&(var))
-# define ATOMIC_SIZE_DEC(var) InterlockedDecrement(&(var))
-# define ATOMIC_SIZE_EXCHANGE(var, val) InterlockedExchange(&(var), (val))
+# ifdef _M_AMD64
+#  define ATOMIC_SIZE_ADD(var, val) InterlockedExchangeAdd64(&(var), (val))
+#  define ATOMIC_SIZE_SUB(var, val) InterlockedExchangeAdd64(&(var), -(val))
+#  define ATOMIC_SIZE_INC(var) InterlockedIncrement64(&(var))
+#  define ATOMIC_SIZE_DEC(var) InterlockedDecrement64(&(var))
+#  define ATOMIC_SIZE_EXCHANGE(var, val) InterlockedExchange64(&(var), (val))
+# else
+#  define ATOMIC_SIZE_ADD(var, val) InterlockedExchangeAdd(&(var), (val))
+#  define ATOMIC_SIZE_SUB(var, val) InterlockedExchangeAdd(&(var), -(val))
+#  define ATOMIC_SIZE_INC(var) InterlockedIncrement(&(var))
+#  define ATOMIC_SIZE_DEC(var) InterlockedDecrement(&(var))
+#  define ATOMIC_SIZE_EXCHANGE(var, val) InterlockedExchange(&(var), (val))
+# endif
 #elif defined HAVE_GCC_ATOMIC_BUILTINS
 # define ATOMIC_SIZE_ADD(var, val) __sync_fetch_and_add(&(var), (val))
 # define ATOMIC_SIZE_SUB(var, val) __sync_fetch_and_sub(&(var), (val))