jdk8-mips64-public/hotspot: src/cpu/mips/vm/vm_version

src/cpu/mips/vm/vm_version_mips.cpp@333debbd9de9 (annotated)

src/cpu/mips/vm/vm_version_mips.cpp

Fri, 16 Dec 2016 11:39:00 +0800

author: aoqi
date: Fri, 16 Dec 2016 11:39:00 +0800
changeset 203: 333debbd9de9
parent 1: 2d8a650513c2
child 209: 994cec5b3f6f
permissions: -rw-r--r--

[C2] Added Zeros Count Instructions support in mips_64.ad

 /*
  * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2015, 2016, Loongson Technology. 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.
  *
  */
 #include "precompiled.hpp"
 #include "asm/macroAssembler.hpp"
 #include "asm/macroAssembler.inline.hpp"
 #include "memory/resourceArea.hpp"
 #include "runtime/java.hpp"
 #include "runtime/stubCodeGenerator.hpp"
 #include "vm_version_mips.hpp"
 #ifdef TARGET_OS_FAMILY_linux
 # include "os_linux.inline.hpp"
 #endif
 #ifdef TARGET_OS_FAMILY_solaris
 # include "os_solaris.inline.hpp"
 #endif
 #ifdef TARGET_OS_FAMILY_windows
 # include "os_windows.inline.hpp"
 #endif
 #ifdef TARGET_OS_FAMILY_bsd
 # include "os_bsd.inline.hpp"
 #endif
 /*
 int VM_Version::_cpu;
 int VM_Version::_model;
 int VM_Version::_stepping;
 int VM_Version::_cpuFeatures;
 const char*           VM_Version::_features_str = "";
 VM_Version::CpuidInfo VM_Version::_cpuid_info   = { 0, };
 static BufferBlob* stub_blob;
 static const int stub_size = 300;
 extern "C" {
   typedef void (*getPsrInfo_stub_t)(void*);
 }
 static getPsrInfo_stub_t getPsrInfo_stub = NULL;
 */
 int VM_Version::_features = VM_Version::unknown_m;
 const char* VM_Version::_features_str = "";
 /*
 class VM_Version_StubGenerator: public StubCodeGenerator {
  public:
   VM_Version_StubGenerator(CodeBuffer *c) : StubCodeGenerator(c) {}
   address generate_getPsrInfo() {
   };
 };
 void VM_Version::get_processor_features() {
 }
 */
 void VM_Version::initialize() {
 	_features = determine_features();
 	//no need, Abstract_VM_Version already define it as false
 	_supports_cx8 = true;
 	char buf[256];
 	jio_snprintf(buf, sizeof(buf), "%s, %s"
 #ifdef OPT_RANGECHECK
 			", optimized range check"
 #endif
 #ifdef OPT_PHI_1
 			", optimized phi"
 #endif
 #ifdef OPT_MERGE
 			", optimized merge"
 #endif
 			,	(has_l2_cache() ? "has_l2_cache" : ""), (has_16k_page() ? "has_16k_page" : "")
 	);
 	//////////////////////add some other feature here//////////////////
 #ifdef COMPILER2
   if (UseLoongsonISA)
     UseCountTrailingZerosInstruction = true;
 #endif
 	// buf is started with ", " or is empty
 	_features_str = strdup(buf);
 	NOT_PRODUCT( if (PrintMiscellaneous && Verbose) print_features(); );
 }
 void VM_Version::print_features() {
 	tty->print_cr("Version:%s", cpu_features());
 }
 int VM_Version::determine_features() {
 	//////////////////////add some other feature here//////////////////
 	return spt_16k_page_m;
 }
 static int saved_features = 0;
 void VM_Version::allow_all() {
 	saved_features = _features;
 	_features     = all_features_m;
 }
 void VM_Version::revert() {
 	_features = saved_features;
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/cpu/mips/vm/vm_version_mips.cpp@333debbd9de9 (annotated)

src/cpu/mips/vm/vm_version_mips.cpp