c1_Compiler.cpp revision 6853:91eeb8807a03 
1/*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 * This code is free software; you can redistribute it and/or modify it
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7 * published by the Free Software Foundation.
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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.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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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
46Compiler::Compiler() : AbstractCompiler(c1) {
47}
48
49void Compiler::init_c1_runtime() {
50  BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
51  Arena* arena = new (mtCompiler) Arena(mtCompiler);
52  Runtime1::initialize(buffer_blob);
53  FrameMap::initialize();
54  // initialize data structures
55  ValueType::initialize(arena);
56  GraphBuilder::initialize();
57  // note: to use more than one instance of LinearScan at a time this function call has to
58  //       be moved somewhere outside of this constructor:
59  Interval::initialize(arena);
60}
61
62
63void Compiler::initialize() {
64  // Buffer blob must be allocated per C1 compiler thread at startup
65  BufferBlob* buffer_blob = init_buffer_blob();
66
67  if (should_perform_init()) {
68    if (buffer_blob == NULL) {
69      // When we come here we are in state 'initializing'; entire C1 compilation
70      // can be shut down.
71      set_state(failed);
72    } else {
73      init_c1_runtime();
74      set_state(initialized);
75    }
76  }
77}
78
79BufferBlob* Compiler::init_buffer_blob() {
80  // Allocate buffer blob once at startup since allocation for each
81  // compilation seems to be too expensive (at least on Intel win32).
82  assert (CompilerThread::current()->get_buffer_blob() == NULL, "Should initialize only once");
83
84  // setup CodeBuffer.  Preallocate a BufferBlob of size
85  // NMethodSizeLimit plus some extra space for constants.
86  int code_buffer_size = Compilation::desired_max_code_buffer_size() +
87    Compilation::desired_max_constant_size();
88
89  BufferBlob* buffer_blob = BufferBlob::create("C1 temporary CodeBuffer", code_buffer_size);
90  if (buffer_blob != NULL) {
91    CompilerThread::current()->set_buffer_blob(buffer_blob);
92  }
93
94  return buffer_blob;
95}
96
97
98void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci) {
99  BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
100  assert(buffer_blob != NULL, "Must exist");
101  // invoke compilation
102  {
103    // We are nested here because we need for the destructor
104    // of Compilation to occur before we release the any
105    // competing compiler thread
106    ResourceMark rm;
107    Compilation c(this, env, method, entry_bci, buffer_blob);
108  }
109}
110
111
112void Compiler::print_timers() {
113  Compilation::print_timers();
114}
115