Mercurial > hg > truffle
diff src/share/vm/shark/sharkFunction.hpp @ 1692:d2ede61b7a12
6976186: integrate Shark HotSpot changes
Summary: Shark is a JIT compiler for Zero that uses the LLVM compiler infrastructure.
Reviewed-by: kvn, twisti
Contributed-by: Gary Benson <gbenson@redhat.com>
author | twisti |
---|---|
date | Wed, 11 Aug 2010 05:51:21 -0700 |
parents | |
children | f95d63e2154a |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/shark/sharkFunction.hpp Wed Aug 11 05:51:21 2010 -0700 @@ -0,0 +1,111 @@ +/* + * 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(); +};