Mercurial > hg > truffle
annotate src/share/vm/opto/c2compiler.cpp @ 4710:41406797186b
7113012: G1: rename not-fully-young GCs as "mixed"
Summary: Renamed partially-young GCs as mixed and fully-young GCs as young. Change all external output that includes those terms (GC log and GC ergo log) as well as any comments, fields, methods, etc. The changeset also includes very minor code tidying up (added some curly brackets).
Reviewed-by: johnc, brutisso
| author | tonyp |
|---|---|
| date | Fri, 16 Dec 2011 02:14:27 -0500 |
| parents | 1d1603768966 |
| children | 6f3fd5150b67 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1999, 2011, 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 #include "precompiled.hpp" |
| 26 #include "opto/c2compiler.hpp" | |
| 27 #include "opto/runtime.hpp" | |
| 28 #ifdef TARGET_ARCH_MODEL_x86_32 | |
| 29 # include "adfiles/ad_x86_32.hpp" | |
| 30 #endif | |
| 31 #ifdef TARGET_ARCH_MODEL_x86_64 | |
| 32 # include "adfiles/ad_x86_64.hpp" | |
| 33 #endif | |
| 34 #ifdef TARGET_ARCH_MODEL_sparc | |
| 35 # include "adfiles/ad_sparc.hpp" | |
| 36 #endif | |
| 37 #ifdef TARGET_ARCH_MODEL_zero | |
| 38 # include "adfiles/ad_zero.hpp" | |
| 39 #endif | |
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40 #ifdef TARGET_ARCH_MODEL_arm |
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41 # include "adfiles/ad_arm.hpp" |
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42 #endif |
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43 #ifdef TARGET_ARCH_MODEL_ppc |
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44 # include "adfiles/ad_ppc.hpp" |
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45 #endif |
| 0 | 46 |
| 47 | |
| 48 volatile int C2Compiler::_runtimes = uninitialized; | |
| 49 | |
| 50 // register information defined by ADLC | |
| 51 extern const char register_save_policy[]; | |
| 52 extern const int register_save_type[]; | |
| 53 | |
| 54 const char* C2Compiler::retry_no_subsuming_loads() { | |
| 55 return "retry without subsuming loads"; | |
| 56 } | |
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57 const char* C2Compiler::retry_no_escape_analysis() { |
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58 return "retry without escape analysis"; |
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59 } |
| 0 | 60 void C2Compiler::initialize_runtime() { |
| 61 | |
| 62 // Check assumptions used while running ADLC | |
| 63 Compile::adlc_verification(); | |
| 64 assert(REG_COUNT <= ConcreteRegisterImpl::number_of_registers, "incompatible register counts"); | |
| 65 | |
| 66 for (int i = 0; i < ConcreteRegisterImpl::number_of_registers ; i++ ) { | |
| 67 OptoReg::vm2opto[i] = OptoReg::Bad; | |
| 68 } | |
| 69 | |
| 70 for( OptoReg::Name i=OptoReg::Name(0); i<OptoReg::Name(REG_COUNT); i = OptoReg::add(i,1) ) { | |
| 71 VMReg r = OptoReg::as_VMReg(i); | |
| 72 if (r->is_valid()) { | |
| 73 OptoReg::vm2opto[r->value()] = i; | |
| 74 } | |
| 75 } | |
| 76 | |
| 77 // Check that runtime and architecture description agree on callee-saved-floats | |
| 78 bool callee_saved_floats = false; | |
| 79 for( OptoReg::Name i=OptoReg::Name(0); i<OptoReg::Name(_last_Mach_Reg); i = OptoReg::add(i,1) ) { | |
| 80 // Is there a callee-saved float or double? | |
| 81 if( register_save_policy[i] == 'E' /* callee-saved */ && | |
| 82 (register_save_type[i] == Op_RegF || register_save_type[i] == Op_RegD) ) { | |
| 83 callee_saved_floats = true; | |
| 84 } | |
| 85 } | |
| 86 | |
| 87 DEBUG_ONLY( Node::init_NodeProperty(); ) | |
| 88 | |
| 89 Compile::pd_compiler2_init(); | |
| 90 | |
| 91 CompilerThread* thread = CompilerThread::current(); | |
| 92 | |
| 93 HandleMark handle_mark(thread); | |
| 94 | |
| 95 OptoRuntime::generate(thread->env()); | |
| 96 | |
| 97 } | |
| 98 | |
| 99 | |
| 100 void C2Compiler::initialize() { | |
| 101 | |
| 102 // This method can only be called once per C2Compiler object | |
| 103 // The first compiler thread that gets here will initialize the | |
| 104 // small amount of global state (and runtime stubs) that c2 needs. | |
| 105 | |
| 106 // There is a race possible once at startup and then we're fine | |
| 107 | |
| 108 // Note that this is being called from a compiler thread not the | |
| 109 // main startup thread. | |
| 110 | |
| 111 if (_runtimes != initialized) { | |
| 112 initialize_runtimes( initialize_runtime, &_runtimes); | |
| 113 } | |
| 114 | |
| 115 // Mark this compiler object as ready to roll | |
| 116 mark_initialized(); | |
| 117 } | |
| 118 | |
| 119 void C2Compiler::compile_method(ciEnv* env, | |
| 120 ciMethod* target, | |
| 121 int entry_bci) { | |
| 122 if (!is_initialized()) { | |
| 123 initialize(); | |
| 124 } | |
| 1685 | 125 bool subsume_loads = SubsumeLoads; |
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126 bool do_escape_analysis = DoEscapeAnalysis && |
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127 !env->jvmti_can_access_local_variables(); |
| 0 | 128 while (!env->failing()) { |
| 129 // Attempt to compile while subsuming loads into machine instructions. | |
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130 Compile C(env, this, target, entry_bci, subsume_loads, do_escape_analysis); |
| 0 | 131 |
| 1685 | 132 |
| 0 | 133 // Check result and retry if appropriate. |
| 134 if (C.failure_reason() != NULL) { | |
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135 if (C.failure_reason_is(retry_no_subsuming_loads())) { |
| 0 | 136 assert(subsume_loads, "must make progress"); |
| 137 subsume_loads = false; | |
| 138 continue; // retry | |
| 139 } | |
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140 if (C.failure_reason_is(retry_no_escape_analysis())) { |
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141 assert(do_escape_analysis, "must make progress"); |
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142 do_escape_analysis = false; |
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143 continue; // retry |
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144 } |
| 0 | 145 // Pass any other failure reason up to the ciEnv. |
| 146 // Note that serious, irreversible failures are already logged | |
| 147 // on the ciEnv via env->record_method_not_compilable(). | |
| 148 env->record_failure(C.failure_reason()); | |
| 149 } | |
| 1685 | 150 if (StressRecompilation) { |
| 151 if (subsume_loads) { | |
| 152 subsume_loads = false; | |
| 153 continue; // retry | |
| 154 } | |
| 155 if (do_escape_analysis) { | |
| 156 do_escape_analysis = false; | |
| 157 continue; // retry | |
| 158 } | |
| 159 } | |
| 0 | 160 |
| 161 // No retry; just break the loop. | |
| 162 break; | |
| 163 } | |
| 164 } | |
| 165 | |
| 166 | |
| 167 void C2Compiler::print_timers() { | |
| 168 // do nothing | |
| 169 } |