src/hotspot/os_cpu/aix_ppc/orderAccess_aix_ppc.inline.hpp
changeset 50429 83aec1d357d4
parent 50428 8c88df2e8a78
child 50430 6659a8f57d78
--- a/src/hotspot/os_cpu/aix_ppc/orderAccess_aix_ppc.inline.hpp	Wed Jun 06 15:36:29 2018 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,93 +0,0 @@
-/*
- * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, 2014 SAP SE. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef OS_CPU_AIX_OJDKPPC_VM_ORDERACCESS_AIX_PPC_INLINE_HPP
-#define OS_CPU_AIX_OJDKPPC_VM_ORDERACCESS_AIX_PPC_INLINE_HPP
-
-#include "runtime/orderAccess.hpp"
-
-// Compiler version last used for testing: xlc 12
-// Please update this information when this file changes
-
-// Implementation of class OrderAccess.
-
-//
-// Machine barrier instructions:
-//
-// - sync            Two-way memory barrier, aka fence.
-// - lwsync          orders  Store|Store,
-//                            Load|Store,
-//                            Load|Load,
-//                   but not Store|Load
-// - eieio           orders  Store|Store
-// - isync           Invalidates speculatively executed instructions,
-//                   but isync may complete before storage accesses
-//                   associated with instructions preceding isync have
-//                   been performed.
-//
-// Semantic barrier instructions:
-// (as defined in orderAccess.hpp)
-//
-// - release         orders Store|Store,       (maps to lwsync)
-//                           Load|Store
-// - acquire         orders  Load|Store,       (maps to lwsync)
-//                           Load|Load
-// - fence           orders Store|Store,       (maps to sync)
-//                           Load|Store,
-//                           Load|Load,
-//                          Store|Load
-//
-
-#define inlasm_sync()     __asm__ __volatile__ ("sync"   : : : "memory");
-#define inlasm_lwsync()   __asm__ __volatile__ ("lwsync" : : : "memory");
-#define inlasm_eieio()    __asm__ __volatile__ ("eieio"  : : : "memory");
-#define inlasm_isync()    __asm__ __volatile__ ("isync"  : : : "memory");
-// Use twi-isync for load_acquire (faster than lwsync).
-// ATTENTION: seems like xlC 10.1 has problems with this inline assembler macro (VerifyMethodHandles found "bad vminfo in AMH.conv"):
-// #define inlasm_acquire_reg(X) __asm__ __volatile__ ("twi 0,%0,0\n isync\n" : : "r" (X) : "memory");
-#define inlasm_acquire_reg(X) inlasm_lwsync();
-
-inline void OrderAccess::loadload()   { inlasm_lwsync(); }
-inline void OrderAccess::storestore() { inlasm_lwsync(); }
-inline void OrderAccess::loadstore()  { inlasm_lwsync(); }
-inline void OrderAccess::storeload()  { inlasm_sync();   }
-
-inline void OrderAccess::acquire()    { inlasm_lwsync(); }
-inline void OrderAccess::release()    { inlasm_lwsync(); }
-inline void OrderAccess::fence()      { inlasm_sync();   }
-
-template<size_t byte_size>
-struct OrderAccess::PlatformOrderedLoad<byte_size, X_ACQUIRE>
-{
-  template <typename T>
-  T operator()(const volatile T* p) const { register T t = Atomic::load(p); inlasm_acquire_reg(t); return t; }
-};
-
-#undef inlasm_sync
-#undef inlasm_lwsync
-#undef inlasm_eieio
-#undef inlasm_isync
-
-#endif // OS_CPU_AIX_OJDKPPC_VM_ORDERACCESS_AIX_PPC_INLINE_HPP