src/share/vm/shark/sharkContext.cpp

Mon, 04 Apr 2011 03:02:00 -0700

author
twisti
date
Mon, 04 Apr 2011 03:02:00 -0700
changeset 2729
e863062e521d
parent 2314
f95d63e2154a
child 4037
da91efe96a93
permissions
-rw-r--r--

7032458: Zero and Shark fixes
Reviewed-by: twisti
Contributed-by: Gary Benson <gbenson@redhat.com>

twisti@2047 1 /*
stefank@2314 2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
twisti@2047 3 * Copyright 2009, 2010 Red Hat, Inc.
twisti@2047 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
twisti@2047 5 *
twisti@2047 6 * This code is free software; you can redistribute it and/or modify it
twisti@2047 7 * under the terms of the GNU General Public License version 2 only, as
twisti@2047 8 * published by the Free Software Foundation.
twisti@2047 9 *
twisti@2047 10 * This code is distributed in the hope that it will be useful, but WITHOUT
twisti@2047 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
twisti@2047 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
twisti@2047 13 * version 2 for more details (a copy is included in the LICENSE file that
twisti@2047 14 * accompanied this code).
twisti@2047 15 *
twisti@2047 16 * You should have received a copy of the GNU General Public License version
twisti@2047 17 * 2 along with this work; if not, write to the Free Software Foundation,
twisti@2047 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
twisti@2047 19 *
twisti@2047 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
twisti@2047 21 * or visit www.oracle.com if you need additional information or have any
twisti@2047 22 * questions.
twisti@2047 23 *
twisti@2047 24 */
twisti@2047 25
stefank@2314 26 #include "precompiled.hpp"
stefank@2314 27 #include "oops/arrayOop.hpp"
stefank@2314 28 #include "oops/oop.hpp"
stefank@2314 29 #include "shark/llvmHeaders.hpp"
stefank@2314 30 #include "shark/sharkContext.hpp"
stefank@2314 31 #include "utilities/globalDefinitions.hpp"
twisti@2047 32
twisti@2047 33 using namespace llvm;
twisti@2047 34
twisti@2047 35 SharkContext::SharkContext(const char* name)
twisti@2047 36 : LLVMContext(),
twisti@2047 37 _free_queue(NULL) {
twisti@2047 38 // Create a module to build our functions into
twisti@2047 39 _module = new Module(name, *this);
twisti@2047 40
twisti@2047 41 // Create basic types
twisti@2047 42 _void_type = Type::getVoidTy(*this);
twisti@2047 43 _bit_type = Type::getInt1Ty(*this);
twisti@2047 44 _jbyte_type = Type::getInt8Ty(*this);
twisti@2047 45 _jshort_type = Type::getInt16Ty(*this);
twisti@2047 46 _jint_type = Type::getInt32Ty(*this);
twisti@2047 47 _jlong_type = Type::getInt64Ty(*this);
twisti@2047 48 _jfloat_type = Type::getFloatTy(*this);
twisti@2047 49 _jdouble_type = Type::getDoubleTy(*this);
twisti@2047 50
twisti@2047 51 // Create compound types
twisti@2047 52 _itableOffsetEntry_type = PointerType::getUnqual(
twisti@2047 53 ArrayType::get(jbyte_type(), itableOffsetEntry::size() * wordSize));
twisti@2047 54
twisti@2047 55 _klass_type = PointerType::getUnqual(
twisti@2047 56 ArrayType::get(jbyte_type(), sizeof(Klass)));
twisti@2047 57
twisti@2047 58 _jniEnv_type = PointerType::getUnqual(
twisti@2047 59 ArrayType::get(jbyte_type(), sizeof(JNIEnv)));
twisti@2047 60
twisti@2047 61 _jniHandleBlock_type = PointerType::getUnqual(
twisti@2047 62 ArrayType::get(jbyte_type(), sizeof(JNIHandleBlock)));
twisti@2047 63
twisti@2047 64 _methodOop_type = PointerType::getUnqual(
twisti@2047 65 ArrayType::get(jbyte_type(), sizeof(methodOopDesc)));
twisti@2047 66
twisti@2047 67 _monitor_type = ArrayType::get(
twisti@2047 68 jbyte_type(), frame::interpreter_frame_monitor_size() * wordSize);
twisti@2047 69
twisti@2047 70 _oop_type = PointerType::getUnqual(
twisti@2047 71 ArrayType::get(jbyte_type(), sizeof(oopDesc)));
twisti@2047 72
twisti@2047 73 _thread_type = PointerType::getUnqual(
twisti@2047 74 ArrayType::get(jbyte_type(), sizeof(JavaThread)));
twisti@2047 75
twisti@2047 76 _zeroStack_type = PointerType::getUnqual(
twisti@2047 77 ArrayType::get(jbyte_type(), sizeof(ZeroStack)));
twisti@2047 78
twisti@2047 79 std::vector<const Type*> params;
twisti@2047 80 params.push_back(methodOop_type());
twisti@2047 81 params.push_back(intptr_type());
twisti@2047 82 params.push_back(thread_type());
twisti@2047 83 _entry_point_type = FunctionType::get(jint_type(), params, false);
twisti@2047 84
twisti@2047 85 params.clear();
twisti@2047 86 params.push_back(methodOop_type());
twisti@2047 87 params.push_back(PointerType::getUnqual(jbyte_type()));
twisti@2047 88 params.push_back(intptr_type());
twisti@2047 89 params.push_back(thread_type());
twisti@2047 90 _osr_entry_point_type = FunctionType::get(jint_type(), params, false);
twisti@2047 91
twisti@2047 92 // Create mappings
twisti@2047 93 for (int i = 0; i < T_CONFLICT; i++) {
twisti@2047 94 switch (i) {
twisti@2047 95 case T_BOOLEAN:
twisti@2047 96 _to_stackType[i] = jint_type();
twisti@2047 97 _to_arrayType[i] = jbyte_type();
twisti@2047 98 break;
twisti@2047 99
twisti@2047 100 case T_BYTE:
twisti@2047 101 _to_stackType[i] = jint_type();
twisti@2047 102 _to_arrayType[i] = jbyte_type();
twisti@2047 103 break;
twisti@2047 104
twisti@2047 105 case T_CHAR:
twisti@2047 106 _to_stackType[i] = jint_type();
twisti@2047 107 _to_arrayType[i] = jshort_type();
twisti@2047 108 break;
twisti@2047 109
twisti@2047 110 case T_SHORT:
twisti@2047 111 _to_stackType[i] = jint_type();
twisti@2047 112 _to_arrayType[i] = jshort_type();
twisti@2047 113 break;
twisti@2047 114
twisti@2047 115 case T_INT:
twisti@2047 116 _to_stackType[i] = jint_type();
twisti@2047 117 _to_arrayType[i] = jint_type();
twisti@2047 118 break;
twisti@2047 119
twisti@2047 120 case T_LONG:
twisti@2047 121 _to_stackType[i] = jlong_type();
twisti@2047 122 _to_arrayType[i] = jlong_type();
twisti@2047 123 break;
twisti@2047 124
twisti@2047 125 case T_FLOAT:
twisti@2047 126 _to_stackType[i] = jfloat_type();
twisti@2047 127 _to_arrayType[i] = jfloat_type();
twisti@2047 128 break;
twisti@2047 129
twisti@2047 130 case T_DOUBLE:
twisti@2047 131 _to_stackType[i] = jdouble_type();
twisti@2047 132 _to_arrayType[i] = jdouble_type();
twisti@2047 133 break;
twisti@2047 134
twisti@2047 135 case T_OBJECT:
twisti@2047 136 case T_ARRAY:
twisti@2047 137 _to_stackType[i] = oop_type();
twisti@2047 138 _to_arrayType[i] = oop_type();
twisti@2047 139 break;
twisti@2047 140
twisti@2047 141 case T_ADDRESS:
twisti@2047 142 _to_stackType[i] = intptr_type();
twisti@2047 143 _to_arrayType[i] = NULL;
twisti@2047 144 break;
twisti@2047 145
twisti@2047 146 default:
twisti@2047 147 _to_stackType[i] = NULL;
twisti@2047 148 _to_arrayType[i] = NULL;
twisti@2047 149 }
twisti@2047 150 }
twisti@2047 151 }
twisti@2047 152
twisti@2047 153 class SharkFreeQueueItem : public CHeapObj {
twisti@2047 154 public:
twisti@2047 155 SharkFreeQueueItem(llvm::Function* function, SharkFreeQueueItem *next)
twisti@2047 156 : _function(function), _next(next) {}
twisti@2047 157
twisti@2047 158 private:
twisti@2047 159 llvm::Function* _function;
twisti@2047 160 SharkFreeQueueItem* _next;
twisti@2047 161
twisti@2047 162 public:
twisti@2047 163 llvm::Function* function() const {
twisti@2047 164 return _function;
twisti@2047 165 }
twisti@2047 166 SharkFreeQueueItem* next() const {
twisti@2047 167 return _next;
twisti@2047 168 }
twisti@2047 169 };
twisti@2047 170
twisti@2047 171 void SharkContext::push_to_free_queue(Function* function) {
twisti@2047 172 _free_queue = new SharkFreeQueueItem(function, _free_queue);
twisti@2047 173 }
twisti@2047 174
twisti@2047 175 Function* SharkContext::pop_from_free_queue() {
twisti@2047 176 if (_free_queue == NULL)
twisti@2047 177 return NULL;
twisti@2047 178
twisti@2047 179 SharkFreeQueueItem *item = _free_queue;
twisti@2047 180 Function *function = item->function();
twisti@2047 181 _free_queue = item->next();
twisti@2047 182 delete item;
twisti@2047 183 return function;
twisti@2047 184 }

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