Mercurial > hg > truffle
annotate src/share/vm/opto/rootnode.hpp @ 17716:cdb71841f4bc
6498581: ThreadInterruptTest3 produces wrong output on Windows
Summary: There is race condition between os::interrupt and os::is_interrupted on Windows. In JVM_Sleep(Thread.sleep), check if thread gets interrupted, it may see interrupted but not really interrupted so cause spurious waking up (early return from sleep). Fix by checking if interrupt event really gets set thus prevent false return. For intrinsic of _isInterrupted, on Windows, go fastpath only on bit not set.
Reviewed-by: acorn, kvn
Contributed-by: david.holmes@oracle.com, yumin.qi@oracle.com
| author | minqi |
|---|---|
| date | Wed, 26 Feb 2014 15:20:41 -0800 |
| parents | f95d63e2154a |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_OPTO_ROOTNODE_HPP |
| 26 #define SHARE_VM_OPTO_ROOTNODE_HPP | |
| 27 | |
| 28 #include "opto/loopnode.hpp" | |
| 29 | |
| 0 | 30 //------------------------------RootNode--------------------------------------- |
| 31 // The one-and-only before-all-else and after-all-else RootNode. The RootNode | |
| 32 // represents what happens if the user runs the whole program repeatedly. The | |
| 33 // RootNode produces the initial values of I/O and memory for the program or | |
| 34 // procedure start. | |
| 35 class RootNode : public LoopNode { | |
| 36 public: | |
| 37 RootNode( ) : LoopNode(0,0) { | |
| 38 init_class_id(Class_Root); | |
| 39 del_req(2); | |
| 40 del_req(1); | |
| 41 } | |
| 42 virtual int Opcode() const; | |
| 43 virtual const Node *is_block_proj() const { return this; } | |
| 44 virtual const Type *bottom_type() const { return Type::BOTTOM; } | |
| 45 virtual Node *Identity( PhaseTransform *phase ) { return this; } | |
| 46 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
| 47 virtual const Type *Value( PhaseTransform *phase ) const { return Type::BOTTOM; } | |
| 48 }; | |
| 49 | |
| 50 //------------------------------HaltNode--------------------------------------- | |
| 51 // Throw an exception & die | |
| 52 class HaltNode : public Node { | |
| 53 public: | |
| 54 HaltNode( Node *ctrl, Node *frameptr ); | |
| 55 virtual int Opcode() const; | |
| 56 virtual bool pinned() const { return true; }; | |
| 57 virtual Node *Ideal(PhaseGVN *phase, bool can_reshape); | |
| 58 virtual const Type *Value( PhaseTransform *phase ) const; | |
| 59 virtual const Type *bottom_type() const; | |
| 60 virtual bool is_CFG() const { return true; } | |
| 61 virtual uint hash() const { return NO_HASH; } // CFG nodes do not hash | |
| 62 virtual bool depends_only_on_test() const { return false; } | |
| 63 virtual const Node *is_block_proj() const { return this; } | |
| 64 virtual const RegMask &out_RegMask() const; | |
| 65 virtual uint ideal_reg() const { return NotAMachineReg; } | |
| 66 virtual uint match_edge(uint idx) const { return 0; } | |
| 67 }; | |
| 1972 | 68 |
| 69 #endif // SHARE_VM_OPTO_ROOTNODE_HPP |