Mercurial > hg > graal-compiler
view src/share/vm/shark/sharkContext.cpp @ 12979:1d1ea10fe09f
8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it.
Summary: Chunk up the last piece of committed memory in a VSN when getting a new one.
Reviewed-by: stefank, jmasa
author | mgerdin |
---|---|
date | Tue, 15 Oct 2013 13:56:46 +0200 |
parents | 2cd5e15048e6 |
children |
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/* * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. * Copyright 2009, 2010 Red Hat, Inc. * 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 "oops/arrayOop.hpp" #include "oops/oop.hpp" #include "shark/llvmHeaders.hpp" #include "shark/sharkContext.hpp" #include "utilities/globalDefinitions.hpp" #include "memory/allocation.hpp" using namespace llvm; SharkContext::SharkContext(const char* name) : LLVMContext(), _free_queue(NULL) { // Create a module to build our functions into _module = new Module(name, *this); // Create basic types _void_type = Type::getVoidTy(*this); _bit_type = Type::getInt1Ty(*this); _jbyte_type = Type::getInt8Ty(*this); _jshort_type = Type::getInt16Ty(*this); _jint_type = Type::getInt32Ty(*this); _jlong_type = Type::getInt64Ty(*this); _jfloat_type = Type::getFloatTy(*this); _jdouble_type = Type::getDoubleTy(*this); // Create compound types _itableOffsetEntry_type = PointerType::getUnqual( ArrayType::get(jbyte_type(), itableOffsetEntry::size() * wordSize)); _Metadata_type = PointerType::getUnqual( ArrayType::get(jbyte_type(), sizeof(Metadata))); _klass_type = PointerType::getUnqual( ArrayType::get(jbyte_type(), sizeof(Klass))); _jniEnv_type = PointerType::getUnqual( ArrayType::get(jbyte_type(), sizeof(JNIEnv))); _jniHandleBlock_type = PointerType::getUnqual( ArrayType::get(jbyte_type(), sizeof(JNIHandleBlock))); _Method_type = PointerType::getUnqual( ArrayType::get(jbyte_type(), sizeof(Method))); _monitor_type = ArrayType::get( jbyte_type(), frame::interpreter_frame_monitor_size() * wordSize); _oop_type = PointerType::getUnqual( ArrayType::get(jbyte_type(), sizeof(oopDesc))); _thread_type = PointerType::getUnqual( ArrayType::get(jbyte_type(), sizeof(JavaThread))); _zeroStack_type = PointerType::getUnqual( ArrayType::get(jbyte_type(), sizeof(ZeroStack))); std::vector<Type*> params; params.push_back(Method_type()); params.push_back(intptr_type()); params.push_back(thread_type()); _entry_point_type = FunctionType::get(jint_type(), params, false); params.clear(); params.push_back(Method_type()); params.push_back(PointerType::getUnqual(jbyte_type())); params.push_back(intptr_type()); params.push_back(thread_type()); _osr_entry_point_type = FunctionType::get(jint_type(), params, false); // Create mappings for (int i = 0; i < T_CONFLICT; i++) { switch (i) { case T_BOOLEAN: _to_stackType[i] = jint_type(); _to_arrayType[i] = jbyte_type(); break; case T_BYTE: _to_stackType[i] = jint_type(); _to_arrayType[i] = jbyte_type(); break; case T_CHAR: _to_stackType[i] = jint_type(); _to_arrayType[i] = jshort_type(); break; case T_SHORT: _to_stackType[i] = jint_type(); _to_arrayType[i] = jshort_type(); break; case T_INT: _to_stackType[i] = jint_type(); _to_arrayType[i] = jint_type(); break; case T_LONG: _to_stackType[i] = jlong_type(); _to_arrayType[i] = jlong_type(); break; case T_FLOAT: _to_stackType[i] = jfloat_type(); _to_arrayType[i] = jfloat_type(); break; case T_DOUBLE: _to_stackType[i] = jdouble_type(); _to_arrayType[i] = jdouble_type(); break; case T_OBJECT: case T_ARRAY: _to_stackType[i] = oop_type(); _to_arrayType[i] = oop_type(); break; case T_ADDRESS: _to_stackType[i] = intptr_type(); _to_arrayType[i] = NULL; break; default: _to_stackType[i] = NULL; _to_arrayType[i] = NULL; } } } class SharkFreeQueueItem : public CHeapObj<mtNone> { public: SharkFreeQueueItem(llvm::Function* function, SharkFreeQueueItem *next) : _function(function), _next(next) {} private: llvm::Function* _function; SharkFreeQueueItem* _next; public: llvm::Function* function() const { return _function; } SharkFreeQueueItem* next() const { return _next; } }; void SharkContext::push_to_free_queue(Function* function) { _free_queue = new SharkFreeQueueItem(function, _free_queue); } Function* SharkContext::pop_from_free_queue() { if (_free_queue == NULL) return NULL; SharkFreeQueueItem *item = _free_queue; Function *function = item->function(); _free_queue = item->next(); delete item; return function; }