| /* |
| * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved. |
| * Copyright 2008, 2009 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. |
| * |
| */ |
| |
| class SharkTopLevelBlock; |
| class DeferredZeroCheck; |
| |
| class SharkFunction : public SharkTargetInvariants { |
| friend class SharkStackWithNormalFrame; |
| |
| public: |
| static llvm::Function* build(ciEnv* env, |
| SharkBuilder* builder, |
| ciTypeFlow* flow, |
| const char* name) { |
| SharkFunction function(env, builder, flow, name); |
| return function.function(); |
| } |
| |
| private: |
| SharkFunction(ciEnv* env, |
| SharkBuilder* builder, |
| ciTypeFlow* flow, |
| const char* name) |
| : SharkTargetInvariants(env, builder, flow) { initialize(name); } |
| |
| private: |
| void initialize(const char* name); |
| |
| private: |
| llvm::Function* _function; |
| SharkTopLevelBlock** _blocks; |
| GrowableArray<DeferredZeroCheck*> _deferred_zero_checks; |
| SharkStack* _stack; |
| |
| public: |
| llvm::Function* function() const { |
| return _function; |
| } |
| int block_count() const { |
| return flow()->block_count(); |
| } |
| SharkTopLevelBlock* block(int i) const { |
| assert(i < block_count(), "should be"); |
| return _blocks[i]; |
| } |
| GrowableArray<DeferredZeroCheck*>* deferred_zero_checks() { |
| return &_deferred_zero_checks; |
| } |
| SharkStack* stack() const { |
| return _stack; |
| } |
| |
| // On-stack replacement |
| private: |
| bool is_osr() const { |
| return flow()->is_osr_flow(); |
| } |
| const llvm::FunctionType* entry_point_type() const { |
| if (is_osr()) |
| return SharkType::osr_entry_point_type(); |
| else |
| return SharkType::entry_point_type(); |
| } |
| |
| // Block management |
| private: |
| llvm::BasicBlock* _block_insertion_point; |
| |
| void set_block_insertion_point(llvm::BasicBlock* block_insertion_point) { |
| _block_insertion_point = block_insertion_point; |
| } |
| llvm::BasicBlock* block_insertion_point() const { |
| return _block_insertion_point; |
| } |
| |
| public: |
| llvm::BasicBlock* CreateBlock(const char* name = "") const { |
| return llvm::BasicBlock::Create( |
| SharkContext::current(), name, function(), block_insertion_point()); |
| } |
| |
| // Deferred zero checks |
| public: |
| void add_deferred_zero_check(SharkTopLevelBlock* block, |
| SharkValue* value); |
| |
| private: |
| void do_deferred_zero_checks(); |
| }; |