Revert accidental svn commit r174473

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@174480 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 0 insertions, 83 deletions

diff --git a/libjava/sysdep/x86-64/locks.h b/libjava/sysdep/x86-64/locks.h
deleted file mode 100644
index fdc0a3efb82..00000000000
--- a/libjava/sysdep/x86-64/locks.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/* locks.h - Thread synchronization primitives. X86/x86-64 implementation.
-
-   Copyright (C) 2002  Free Software Foundation
-
-   Contributed by Bo Thorsen <bo@suse.de>.
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#ifndef __SYSDEP_LOCKS_H__
-#define __SYSDEP_LOCKS_H__
-
-typedef size_t obj_addr_t;	/* Integer type big enough for object	*/
-				/* address.				*/
-
-// Atomically replace *addr by new_val if it was initially equal to old.
-// Return true if the comparison succeeded.
-// Assumed to have acquire semantics, i.e. later memory operations
-// cannot execute before the compare_and_swap finishes.
-inline static bool
-compare_and_swap(volatile obj_addr_t *addr,
-		 obj_addr_t old,
-		 obj_addr_t new_val)
-{
-  char result;
-#ifdef __x86_64__
-  __asm__ __volatile__("lock; cmpxchgq %2, %0; setz %1"
-	      : "=m"(*(addr)), "=q"(result)
-	      : "r" (new_val), "a"(old), "m"(*addr)
-	      : "memory");
-#else
-  __asm__ __volatile__("lock; cmpxchgl %2, %0; setz %1"
-		       : "=m"(*addr), "=q"(result)
-		       : "r" (new_val), "a"(old), "m"(*addr)
-		       : "memory");
-#endif
-  return (bool) result;
-}
-
-// Set *addr to new_val with release semantics, i.e. making sure
-// that prior loads and stores complete before this
-// assignment.
-// On X86/x86-64, the hardware shouldn't reorder reads and writes,
-// so we just have to convince gcc not to do it either.
-inline static void
-release_set(volatile obj_addr_t *addr, obj_addr_t new_val)
-{
-  __asm__ __volatile__(" " : : : "memory");
-  *(addr) = new_val;
-}
-
-// Compare_and_swap with release semantics instead of acquire semantics.
-// On many architecture, the operation makes both guarantees, so the
-// implementation can be the same.
-inline static bool
-compare_and_swap_release(volatile obj_addr_t *addr,
-			 obj_addr_t old,
-			 obj_addr_t new_val)
-{
-  return compare_and_swap(addr, old, new_val);
-}
-
-// Ensure that subsequent instructions do not execute on stale
-// data that was loaded from memory before the barrier.
-// On X86/x86-64, the hardware ensures that reads are properly ordered.
-inline static void
-read_barrier()
-{
-}
-
-// Ensure that prior stores to memory are completed with respect to other
-// processors.
-inline static void
-write_barrier()
-{
-  /* x86-64/X86 does not reorder writes. We just need to ensure that
-     gcc also doesn't.  */
-  __asm__ __volatile__(" " : : : "memory");
-}
-#endif