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 46 Compiler::Compiler () {} 47 48 void Compiler::init_c1_runtime() { 49 BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob(); 50 Arena* arena = new (mtCompiler) Arena(); 51 Runtime1::initialize(buffer_blob); 52 FrameMap::initialize(); 53 // initialize data structures 54 ValueType::initialize(arena); 55 GraphBuilder::initialize(); 56 // note: to use more than one instance of LinearScan at a time this function call has to 57 // be moved somewhere outside of this constructor: 58 Interval::initialize(arena); 59 } 60 61 62 void Compiler::initialize() { 63 // Buffer blob must be allocated per C1 compiler thread at startup 64 BufferBlob* buffer_blob = init_buffer_blob(); 65 66 if (should_perform_init()) { 67 if (buffer_blob == NULL) { 68 // When we come here we are in state 'initializing'; entire C1 compilation 69 // can be shut down. 70 set_state(failed); 71 } else { 72 init_c1_runtime(); 73 set_state(initialized); 74 } 75 } 76 } 77 78 BufferBlob* Compiler::init_buffer_blob() { 79 // Allocate buffer blob once at startup since allocation for each 80 // compilation seems to be too expensive (at least on Intel win32). 81 assert (CompilerThread::current()->get_buffer_blob() == NULL, "Should initialize only once"); 82 83 // setup CodeBuffer. Preallocate a BufferBlob of size 84 // NMethodSizeLimit plus some extra space for constants. 85 int code_buffer_size = Compilation::desired_max_code_buffer_size() + 86 Compilation::desired_max_constant_size(); 87 88 BufferBlob* buffer_blob = BufferBlob::create("C1 temporary CodeBuffer", code_buffer_size); 89 if (buffer_blob != NULL) { 90 CompilerThread::current()->set_buffer_blob(buffer_blob); 91 } 92 93 return buffer_blob; 94 } 95 96 97 void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci) { 98 BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob(); 99 assert(buffer_blob != NULL, "Must exist"); 100 // invoke compilation 101 { 102 // We are nested here because we need for the destructor 103 // of Compilation to occur before we release the any 104 // competing compiler thread 105 ResourceMark rm; 106 Compilation c(this, env, method, entry_bci, buffer_blob); 107 } 108 } 109 110 111 void Compiler::print_timers() { 112 Compilation::print_timers(); 113 }