Mercurial > hg > truffle
annotate src/share/vm/c1/c1_InstructionPrinter.hpp @ 20543:e7d0505c8a30
8059758: Footprint regressions with JDK-8038423
Summary: Changes in JDK-8038423 always initialize (zero out) virtual memory used for auxiliary data structures. This causes a footprint regression for G1 in startup benchmarks. This is because they do not touch that memory at all, so the operating system does not actually commit these pages. The fix is to, if the initialization value of the data structures matches the default value of just committed memory (=0), do not do anything.
Reviewed-by: jwilhelm, brutisso
| author | tschatzl |
|---|---|
| date | Fri, 10 Oct 2014 15:51:58 +0200 |
| parents | 55fb97c4c58d |
| children | 4ca6dc0799b6 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1999, 2013, 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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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_C1_C1_INSTRUCTIONPRINTER_HPP |
| 26 #define SHARE_VM_C1_C1_INSTRUCTIONPRINTER_HPP | |
| 27 | |
| 28 #include "c1/c1_IR.hpp" | |
| 29 #include "c1/c1_Instruction.hpp" | |
| 30 #include "c1/c1_Runtime1.hpp" | |
| 31 | |
| 0 | 32 #ifndef PRODUCT |
| 33 class InstructionPrinter: public InstructionVisitor { | |
| 34 private: | |
| 35 outputStream* _output; | |
| 36 bool _print_phis; | |
| 37 | |
| 38 enum LayoutConstants { | |
| 39 bci_pos = 2, | |
| 40 use_pos = 7, | |
| 41 temp_pos = 12, | |
| 42 instr_pos = 19, | |
| 43 end_pos = 60 | |
| 44 }; | |
| 45 | |
| 46 bool is_illegal_phi(Value v); | |
| 47 | |
| 48 public: | |
| 49 InstructionPrinter(bool print_phis = true, outputStream* output = tty) | |
| 50 : _print_phis(print_phis) | |
| 51 , _output(output) | |
| 52 {} | |
| 53 | |
| 54 outputStream* output() { return _output; } | |
| 55 | |
| 56 // helpers | |
| 57 static const char* basic_type_name(BasicType type); | |
| 58 static const char* cond_name(If::Condition cond); | |
| 59 static const char* op_name(Bytecodes::Code op); | |
| 60 bool is_phi_of_block(Value v, BlockBegin* b); | |
| 61 | |
| 62 // type-specific print functions | |
| 63 void print_klass(ciKlass* klass); | |
| 64 void print_object(Value obj); | |
| 65 | |
| 66 // generic print functions | |
| 67 void print_temp(Value value); | |
| 68 void print_field(AccessField* field); | |
| 69 void print_indexed(AccessIndexed* indexed); | |
| 70 void print_monitor(AccessMonitor* monitor); | |
| 71 void print_op2(Op2* instr); | |
| 72 void print_value(Value value); | |
| 73 void print_instr(Instruction* instr); | |
| 74 void print_stack(ValueStack* stack); | |
| 75 void print_inline_level(BlockBegin* block); | |
| 76 void print_unsafe_op(UnsafeOp* op, const char* name); | |
| 77 void print_unsafe_raw_op(UnsafeRawOp* op, const char* name); | |
| 78 void print_unsafe_object_op(UnsafeObjectOp* op, const char* name); | |
| 79 void print_phi(int i, Value v, BlockBegin* b); | |
| 80 void print_alias(Value v); | |
| 81 | |
| 82 // line printing of instructions | |
| 83 void fill_to(int pos, char filler = ' '); | |
| 84 void print_head(); | |
| 85 void print_line(Instruction* instr); | |
| 86 | |
| 87 // visitor functionality | |
| 88 virtual void do_Phi (Phi* x); | |
| 89 virtual void do_Local (Local* x); | |
| 90 virtual void do_Constant (Constant* x); | |
| 91 virtual void do_LoadField (LoadField* x); | |
| 92 virtual void do_StoreField (StoreField* x); | |
| 93 virtual void do_ArrayLength (ArrayLength* x); | |
| 94 virtual void do_LoadIndexed (LoadIndexed* x); | |
| 95 virtual void do_StoreIndexed (StoreIndexed* x); | |
| 96 virtual void do_NegateOp (NegateOp* x); | |
| 97 virtual void do_ArithmeticOp (ArithmeticOp* x); | |
| 98 virtual void do_ShiftOp (ShiftOp* x); | |
| 99 virtual void do_LogicOp (LogicOp* x); | |
| 100 virtual void do_CompareOp (CompareOp* x); | |
| 101 virtual void do_IfOp (IfOp* x); | |
| 102 virtual void do_Convert (Convert* x); | |
| 103 virtual void do_NullCheck (NullCheck* x); | |
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104 virtual void do_TypeCast (TypeCast* x); |
| 0 | 105 virtual void do_Invoke (Invoke* x); |
| 106 virtual void do_NewInstance (NewInstance* x); | |
| 107 virtual void do_NewTypeArray (NewTypeArray* x); | |
| 108 virtual void do_NewObjectArray (NewObjectArray* x); | |
| 109 virtual void do_NewMultiArray (NewMultiArray* x); | |
| 110 virtual void do_CheckCast (CheckCast* x); | |
| 111 virtual void do_InstanceOf (InstanceOf* x); | |
| 112 virtual void do_MonitorEnter (MonitorEnter* x); | |
| 113 virtual void do_MonitorExit (MonitorExit* x); | |
| 114 virtual void do_Intrinsic (Intrinsic* x); | |
| 115 virtual void do_BlockBegin (BlockBegin* x); | |
| 116 virtual void do_Goto (Goto* x); | |
| 117 virtual void do_If (If* x); | |
| 118 virtual void do_IfInstanceOf (IfInstanceOf* x); | |
| 119 virtual void do_TableSwitch (TableSwitch* x); | |
| 120 virtual void do_LookupSwitch (LookupSwitch* x); | |
| 121 virtual void do_Return (Return* x); | |
| 122 virtual void do_Throw (Throw* x); | |
| 123 virtual void do_Base (Base* x); | |
| 124 virtual void do_OsrEntry (OsrEntry* x); | |
| 125 virtual void do_ExceptionObject(ExceptionObject* x); | |
| 126 virtual void do_RoundFP (RoundFP* x); | |
| 127 virtual void do_UnsafeGetRaw (UnsafeGetRaw* x); | |
| 128 virtual void do_UnsafePutRaw (UnsafePutRaw* x); | |
| 129 virtual void do_UnsafeGetObject(UnsafeGetObject* x); | |
| 130 virtual void do_UnsafePutObject(UnsafePutObject* x); | |
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131 virtual void do_UnsafeGetAndSetObject(UnsafeGetAndSetObject* x); |
| 0 | 132 virtual void do_UnsafePrefetchRead (UnsafePrefetchRead* x); |
| 133 virtual void do_UnsafePrefetchWrite(UnsafePrefetchWrite* x); | |
| 134 virtual void do_ProfileCall (ProfileCall* x); | |
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135 virtual void do_ProfileReturnType (ProfileReturnType* x); |
| 1783 | 136 virtual void do_ProfileInvoke (ProfileInvoke* x); |
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6809483: hotspot:::method_entry are not correctly generated for "method()V"
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137 virtual void do_RuntimeCall (RuntimeCall* x); |
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7120481: storeStore barrier in constructor with final field
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138 virtual void do_MemBar (MemBar* x); |
| 8860 | 139 virtual void do_RangeCheckPredicate(RangeCheckPredicate* x); |
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8011648: C1: optimized build is broken after 7153771
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140 #ifdef ASSERT |
| 8860 | 141 virtual void do_Assert (Assert* x); |
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142 #endif |
| 0 | 143 }; |
| 144 #endif // PRODUCT | |
| 1972 | 145 |
| 146 #endif // SHARE_VM_C1_C1_INSTRUCTIONPRINTER_HPP |