Remove Alpha and Tru64 support.

[postgresql] / src / include / storage / barrier.h

diff --git a/src/include/storage/barrier.h b/src/include/storage/barrier.h
index bc61de0ff147a69d9979f17fae391c25fa334c61..79a2f8d9b2c8b92ac0f80dee46222b0cf4680ccf 100644 (file)
--- a/src/include/storage/barrier.h
+++ b/src/include/storage/barrier.h
@@ -109,16 +109,7 @@ extern slock_t dummy_spinlock;
 #define pg_memory_barrier()            __asm__ __volatile__ ("sync" : : : "memory")
 #define pg_read_barrier()              __asm__ __volatile__ ("lwsync" : : : "memory")
 #define pg_write_barrier()             __asm__ __volatile__ ("lwsync" : : : "memory")
-#elif defined(__alpha) || defined(__alpha__)   /* Alpha */
 
-/*
- * Unlike all other known architectures, Alpha allows dependent reads to be
- * reordered, but we don't currently find it necessary to provide a conditional
- * read barrier to cover that case.  We might need to add that later.
- */
-#define pg_memory_barrier()            __asm__ __volatile__ ("mb" : : : "memory")
-#define pg_read_barrier()              __asm__ __volatile__ ("rmb" : : : "memory")
-#define pg_write_barrier()             __asm__ __volatile__ ("wmb" : : : "memory")
 #elif defined(__hppa) || defined(__hppa__)             /* HP PA-RISC */
 
 /* HPPA doesn't do either read or write reordering */