1 /* 2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "c1/c1_Compilation.hpp" 27 #include "c1/c1_Compiler.hpp" 28 #include "c1/c1_FrameMap.hpp" 29 #include "c1/c1_GraphBuilder.hpp" 30 #include "c1/c1_LinearScan.hpp" 31 #include "c1/c1_MacroAssembler.hpp" 32 #include "c1/c1_Runtime1.hpp" 33 #include "c1/c1_ValueType.hpp" 34 #include "compiler/compileBroker.hpp" 35 #include "compiler/compilerOracle.hpp" 36 #include "interpreter/linkResolver.hpp" 37 #include "memory/allocation.hpp" 38 #include "memory/allocation.inline.hpp" 39 #include "memory/resourceArea.hpp" 40 #include "prims/nativeLookup.hpp" 41 #include "runtime/arguments.hpp" 42 #include "runtime/interfaceSupport.hpp" 43 #include "runtime/sharedRuntime.hpp" 44 45 volatile int Compiler::_runtimes = uninitialized; 46 47 Compiler::Compiler() { 48 } 49 50 51 Compiler::~Compiler() { 52 Unimplemented(); 53 } 54 55 56 void Compiler::initialize_all() { 57 BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob(); 58 Arena* arena = new (mtCompiler) Arena(); 59 Runtime1::initialize(buffer_blob); 60 FrameMap::initialize(); 61 // initialize data structures 62 ValueType::initialize(arena); 63 // Instruction::initialize(); 64 // BlockBegin::initialize(); 65 GraphBuilder::initialize(); 66 // note: to use more than one instance of LinearScan at a time this function call has to 67 // be moved somewhere outside of this constructor: 68 Interval::initialize(arena); 69 } 70 71 72 void Compiler::initialize() { 73 if (_runtimes != initialized) { 74 initialize_runtimes( initialize_all, &_runtimes); 75 } 76 mark_initialized(); 77 } 78 79 80 BufferBlob* Compiler::get_buffer_blob(ciEnv* env) { 81 // Allocate buffer blob once at startup since allocation for each 82 // compilation seems to be too expensive (at least on Intel win32). 83 BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob(); 84 if (buffer_blob != NULL) { 85 return buffer_blob; 86 } 87 88 // setup CodeBuffer. Preallocate a BufferBlob of size 89 // NMethodSizeLimit plus some extra space for constants. 90 int code_buffer_size = Compilation::desired_max_code_buffer_size() + 91 Compilation::desired_max_constant_size(); 92 93 buffer_blob = BufferBlob::create("Compiler1 temporary CodeBuffer", 94 code_buffer_size); 95 if (buffer_blob == NULL) { 96 CompileBroker::handle_full_code_cache(); 97 env->record_failure("CodeCache is full"); 98 } else { 99 CompilerThread::current()->set_buffer_blob(buffer_blob); 100 } 101 102 return buffer_blob; 103 } 104 105 106 void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci) { 107 BufferBlob* buffer_blob = Compiler::get_buffer_blob(env); 108 if (buffer_blob == NULL) { 109 return; 110 } 111 112 if (!is_initialized()) { 113 initialize(); 114 } 115 116 // invoke compilation 117 { 118 // We are nested here because we need for the destructor 119 // of Compilation to occur before we release the any 120 // competing compiler thread 121 ResourceMark rm; 122 Compilation c(this, env, method, entry_bci, buffer_blob); 123 } 124 } 125 126 127 void Compiler::print_timers() { 128 Compilation::print_timers(); 129 }