src/share/vm/shark/sharkFunction.hpp

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 4314
2cd5e15048e6
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 2008, 2009 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 #ifndef SHARE_VM_SHARK_SHARKFUNCTION_HPP
stefank@2314 27 #define SHARE_VM_SHARK_SHARKFUNCTION_HPP
stefank@2314 28
stefank@2314 29 #include "ci/ciEnv.hpp"
stefank@2314 30 #include "ci/ciStreams.hpp"
stefank@2314 31 #include "ci/ciTypeFlow.hpp"
stefank@2314 32 #include "memory/allocation.hpp"
stefank@2314 33 #include "shark/llvmHeaders.hpp"
stefank@2314 34 #include "shark/llvmValue.hpp"
stefank@2314 35 #include "shark/sharkBuilder.hpp"
stefank@2314 36 #include "shark/sharkContext.hpp"
stefank@2314 37 #include "shark/sharkInvariants.hpp"
stefank@2314 38 #include "shark/sharkStack.hpp"
stefank@2314 39
twisti@2047 40 class SharkTopLevelBlock;
twisti@2047 41 class DeferredZeroCheck;
twisti@2047 42
twisti@2047 43 class SharkFunction : public SharkTargetInvariants {
twisti@2047 44 friend class SharkStackWithNormalFrame;
twisti@2047 45
twisti@2047 46 public:
twisti@2047 47 static llvm::Function* build(ciEnv* env,
twisti@2047 48 SharkBuilder* builder,
twisti@2047 49 ciTypeFlow* flow,
twisti@2047 50 const char* name) {
twisti@2047 51 SharkFunction function(env, builder, flow, name);
twisti@2047 52 return function.function();
twisti@2047 53 }
twisti@2047 54
twisti@2047 55 private:
twisti@2047 56 SharkFunction(ciEnv* env,
twisti@2047 57 SharkBuilder* builder,
twisti@2047 58 ciTypeFlow* flow,
twisti@2047 59 const char* name)
twisti@2047 60 : SharkTargetInvariants(env, builder, flow) { initialize(name); }
twisti@2047 61
twisti@2047 62 private:
twisti@2047 63 void initialize(const char* name);
twisti@2047 64
twisti@2047 65 private:
twisti@2047 66 llvm::Function* _function;
twisti@2047 67 SharkTopLevelBlock** _blocks;
twisti@2047 68 GrowableArray<DeferredZeroCheck*> _deferred_zero_checks;
twisti@2047 69 SharkStack* _stack;
twisti@2047 70
twisti@2047 71 public:
twisti@2047 72 llvm::Function* function() const {
twisti@2047 73 return _function;
twisti@2047 74 }
twisti@2047 75 int block_count() const {
twisti@2047 76 return flow()->block_count();
twisti@2047 77 }
twisti@2047 78 SharkTopLevelBlock* block(int i) const {
twisti@2047 79 assert(i < block_count(), "should be");
twisti@2047 80 return _blocks[i];
twisti@2047 81 }
twisti@2047 82 GrowableArray<DeferredZeroCheck*>* deferred_zero_checks() {
twisti@2047 83 return &_deferred_zero_checks;
twisti@2047 84 }
twisti@2047 85 SharkStack* stack() const {
twisti@2047 86 return _stack;
twisti@2047 87 }
twisti@2047 88
twisti@2047 89 // On-stack replacement
twisti@2047 90 private:
twisti@2047 91 bool is_osr() const {
twisti@2047 92 return flow()->is_osr_flow();
twisti@2047 93 }
twisti@2047 94 const llvm::FunctionType* entry_point_type() const {
twisti@2047 95 if (is_osr())
twisti@2047 96 return SharkType::osr_entry_point_type();
twisti@2047 97 else
twisti@2047 98 return SharkType::entry_point_type();
twisti@2047 99 }
twisti@2047 100
twisti@2047 101 // Block management
twisti@2047 102 private:
twisti@2047 103 llvm::BasicBlock* _block_insertion_point;
twisti@2047 104
twisti@2047 105 void set_block_insertion_point(llvm::BasicBlock* block_insertion_point) {
twisti@2047 106 _block_insertion_point = block_insertion_point;
twisti@2047 107 }
twisti@2047 108 llvm::BasicBlock* block_insertion_point() const {
twisti@2047 109 return _block_insertion_point;
twisti@2047 110 }
twisti@2047 111
twisti@2047 112 public:
twisti@2047 113 llvm::BasicBlock* CreateBlock(const char* name = "") const {
twisti@2047 114 return llvm::BasicBlock::Create(
twisti@2047 115 SharkContext::current(), name, function(), block_insertion_point());
twisti@2047 116 }
twisti@2047 117
twisti@2047 118 // Deferred zero checks
twisti@2047 119 public:
twisti@2047 120 void add_deferred_zero_check(SharkTopLevelBlock* block,
twisti@2047 121 SharkValue* value);
twisti@2047 122
twisti@2047 123 private:
twisti@2047 124 void do_deferred_zero_checks();
twisti@2047 125 };
stefank@2314 126
stefank@2314 127 #endif // SHARE_VM_SHARK_SHARKFUNCTION_HPP

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