1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/shark/sharkFunction.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,127 @@
1.4 +/*
1.5 + * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
1.6 + * Copyright 2008, 2009 Red Hat, Inc.
1.7 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.8 + *
1.9 + * This code is free software; you can redistribute it and/or modify it
1.10 + * under the terms of the GNU General Public License version 2 only, as
1.11 + * published by the Free Software Foundation.
1.12 + *
1.13 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.14 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.15 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.16 + * version 2 for more details (a copy is included in the LICENSE file that
1.17 + * accompanied this code).
1.18 + *
1.19 + * You should have received a copy of the GNU General Public License version
1.20 + * 2 along with this work; if not, write to the Free Software Foundation,
1.21 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.22 + *
1.23 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.24 + * or visit www.oracle.com if you need additional information or have any
1.25 + * questions.
1.26 + *
1.27 + */
1.28 +
1.29 +#ifndef SHARE_VM_SHARK_SHARKFUNCTION_HPP
1.30 +#define SHARE_VM_SHARK_SHARKFUNCTION_HPP
1.31 +
1.32 +#include "ci/ciEnv.hpp"
1.33 +#include "ci/ciStreams.hpp"
1.34 +#include "ci/ciTypeFlow.hpp"
1.35 +#include "memory/allocation.hpp"
1.36 +#include "shark/llvmHeaders.hpp"
1.37 +#include "shark/llvmValue.hpp"
1.38 +#include "shark/sharkBuilder.hpp"
1.39 +#include "shark/sharkContext.hpp"
1.40 +#include "shark/sharkInvariants.hpp"
1.41 +#include "shark/sharkStack.hpp"
1.42 +
1.43 +class SharkTopLevelBlock;
1.44 +class DeferredZeroCheck;
1.45 +
1.46 +class SharkFunction : public SharkTargetInvariants {
1.47 + friend class SharkStackWithNormalFrame;
1.48 +
1.49 + public:
1.50 + static llvm::Function* build(ciEnv* env,
1.51 + SharkBuilder* builder,
1.52 + ciTypeFlow* flow,
1.53 + const char* name) {
1.54 + SharkFunction function(env, builder, flow, name);
1.55 + return function.function();
1.56 + }
1.57 +
1.58 + private:
1.59 + SharkFunction(ciEnv* env,
1.60 + SharkBuilder* builder,
1.61 + ciTypeFlow* flow,
1.62 + const char* name)
1.63 + : SharkTargetInvariants(env, builder, flow) { initialize(name); }
1.64 +
1.65 + private:
1.66 + void initialize(const char* name);
1.67 +
1.68 + private:
1.69 + llvm::Function* _function;
1.70 + SharkTopLevelBlock** _blocks;
1.71 + GrowableArray<DeferredZeroCheck*> _deferred_zero_checks;
1.72 + SharkStack* _stack;
1.73 +
1.74 + public:
1.75 + llvm::Function* function() const {
1.76 + return _function;
1.77 + }
1.78 + int block_count() const {
1.79 + return flow()->block_count();
1.80 + }
1.81 + SharkTopLevelBlock* block(int i) const {
1.82 + assert(i < block_count(), "should be");
1.83 + return _blocks[i];
1.84 + }
1.85 + GrowableArray<DeferredZeroCheck*>* deferred_zero_checks() {
1.86 + return &_deferred_zero_checks;
1.87 + }
1.88 + SharkStack* stack() const {
1.89 + return _stack;
1.90 + }
1.91 +
1.92 + // On-stack replacement
1.93 + private:
1.94 + bool is_osr() const {
1.95 + return flow()->is_osr_flow();
1.96 + }
1.97 + llvm::FunctionType* entry_point_type() const {
1.98 + if (is_osr())
1.99 + return SharkType::osr_entry_point_type();
1.100 + else
1.101 + return SharkType::entry_point_type();
1.102 + }
1.103 +
1.104 + // Block management
1.105 + private:
1.106 + llvm::BasicBlock* _block_insertion_point;
1.107 +
1.108 + void set_block_insertion_point(llvm::BasicBlock* block_insertion_point) {
1.109 + _block_insertion_point = block_insertion_point;
1.110 + }
1.111 + llvm::BasicBlock* block_insertion_point() const {
1.112 + return _block_insertion_point;
1.113 + }
1.114 +
1.115 + public:
1.116 + llvm::BasicBlock* CreateBlock(const char* name = "") const {
1.117 + return llvm::BasicBlock::Create(
1.118 + SharkContext::current(), name, function(), block_insertion_point());
1.119 + }
1.120 +
1.121 + // Deferred zero checks
1.122 + public:
1.123 + void add_deferred_zero_check(SharkTopLevelBlock* block,
1.124 + SharkValue* value);
1.125 +
1.126 + private:
1.127 + void do_deferred_zero_checks();
1.128 +};
1.129 +
1.130 +#endif // SHARE_VM_SHARK_SHARKFUNCTION_HPP
