Mercurial > hg > truffle
annotate src/share/vm/code/icBuffer.cpp @ 7062:8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
increased InitialCodeCacheSize to fit the bootstrapping
added flag -XX:GraalClassPath to allow providing a .jar or .zip file that contains all Graal classes
added support for the flag -XX:TraceCompilationPolicy to the Graal-specific compilation policy
| author | Christian Haeubl <haeubl@ssw.jku.at> |
|---|---|
| date | Thu, 15 Nov 2012 11:40:50 +0100 |
| parents | 1d1603768966 |
| children | 7d815d842ee0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 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 "code/compiledIC.hpp" | |
| 27 #include "code/icBuffer.hpp" | |
| 28 #include "code/nmethod.hpp" | |
| 29 #include "code/scopeDesc.hpp" | |
| 30 #include "gc_interface/collectedHeap.inline.hpp" | |
| 31 #include "interpreter/interpreter.hpp" | |
| 32 #include "interpreter/linkResolver.hpp" | |
| 33 #include "memory/resourceArea.hpp" | |
| 34 #include "memory/universe.inline.hpp" | |
| 35 #include "oops/methodOop.hpp" | |
| 36 #include "oops/oop.inline.hpp" | |
| 37 #include "oops/oop.inline2.hpp" | |
| 38 #include "runtime/mutexLocker.hpp" | |
| 39 #include "runtime/stubRoutines.hpp" | |
| 40 #ifdef TARGET_ARCH_x86 | |
| 41 # include "assembler_x86.inline.hpp" | |
| 42 #endif | |
| 43 #ifdef TARGET_ARCH_sparc | |
| 44 # include "assembler_sparc.inline.hpp" | |
| 45 #endif | |
| 46 #ifdef TARGET_ARCH_zero | |
| 47 # include "assembler_zero.inline.hpp" | |
| 48 #endif | |
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49 #ifdef TARGET_ARCH_arm |
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50 # include "assembler_arm.inline.hpp" |
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51 #endif |
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52 #ifdef TARGET_ARCH_ppc |
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53 # include "assembler_ppc.inline.hpp" |
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54 #endif |
| 0 | 55 |
| 56 | |
| 57 DEF_STUB_INTERFACE(ICStub); | |
| 58 | |
| 59 StubQueue* InlineCacheBuffer::_buffer = NULL; | |
| 60 ICStub* InlineCacheBuffer::_next_stub = NULL; | |
| 61 | |
| 62 | |
| 63 void ICStub::finalize() { | |
| 64 if (!is_empty()) { | |
| 65 ResourceMark rm; | |
| 66 CompiledIC *ic = CompiledIC_at(ic_site()); | |
| 67 assert(CodeCache::find_nmethod(ic->instruction_address()) != NULL, "inline cache in non-nmethod?"); | |
| 68 | |
| 69 assert(this == ICStub_from_destination_address(ic->stub_address()), "wrong owner of ic buffer"); | |
| 70 ic->set_cached_oop(cached_oop()); | |
| 71 ic->set_ic_destination(destination()); | |
| 72 } | |
| 73 } | |
| 74 | |
| 75 | |
| 76 address ICStub::destination() const { | |
| 77 return InlineCacheBuffer::ic_buffer_entry_point(code_begin()); | |
| 78 } | |
| 79 | |
| 80 oop ICStub::cached_oop() const { | |
| 81 return InlineCacheBuffer::ic_buffer_cached_oop(code_begin()); | |
| 82 } | |
| 83 | |
| 84 | |
| 85 void ICStub::set_stub(CompiledIC *ic, oop cached_value, address dest_addr) { | |
| 86 // We cannot store a pointer to the 'ic' object, since it is resource allocated. Instead we | |
| 87 // store the location of the inline cache. Then we have enough information recreate the CompiledIC | |
| 88 // object when we need to remove the stub. | |
| 89 _ic_site = ic->instruction_address(); | |
| 90 | |
| 91 // Assemble new stub | |
| 92 InlineCacheBuffer::assemble_ic_buffer_code(code_begin(), cached_value, dest_addr); | |
| 93 assert(destination() == dest_addr, "can recover destination"); | |
| 94 assert(cached_oop() == cached_value, "can recover destination"); | |
| 95 } | |
| 96 | |
| 97 | |
| 98 void ICStub::clear() { | |
| 99 _ic_site = NULL; | |
| 100 } | |
| 101 | |
| 102 | |
| 103 #ifndef PRODUCT | |
| 104 // anybody calling to this stub will trap | |
| 105 | |
| 106 void ICStub::verify() { | |
| 107 } | |
| 108 | |
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109 void ICStub::print_on(outputStream* st) { |
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110 st->print_cr("ICStub: site: " INTPTR_FORMAT, _ic_site); |
| 0 | 111 } |
| 112 #endif | |
| 113 | |
| 114 //----------------------------------------------------------------------------------------------- | |
| 115 // Implementation of InlineCacheBuffer | |
| 116 | |
| 117 void InlineCacheBuffer::init_next_stub() { | |
| 118 ICStub* ic_stub = (ICStub*)buffer()->request_committed (ic_stub_code_size()); | |
| 119 assert (ic_stub != NULL, "no room for a single stub"); | |
| 120 set_next_stub(ic_stub); | |
| 121 } | |
| 122 | |
| 123 void InlineCacheBuffer::initialize() { | |
| 124 if (_buffer != NULL) return; // already initialized | |
| 125 _buffer = new StubQueue(new ICStubInterface, 10*K, InlineCacheBuffer_lock, "InlineCacheBuffer"); | |
| 126 assert (_buffer != NULL, "cannot allocate InlineCacheBuffer"); | |
| 127 init_next_stub(); | |
| 128 } | |
| 129 | |
| 130 | |
| 131 ICStub* InlineCacheBuffer::new_ic_stub() { | |
| 132 while (true) { | |
| 133 ICStub* ic_stub = (ICStub*)buffer()->request_committed(ic_stub_code_size()); | |
| 134 if (ic_stub != NULL) { | |
| 135 return ic_stub; | |
| 136 } | |
| 137 // we ran out of inline cache buffer space; must enter safepoint. | |
| 138 // We do this by forcing a safepoint | |
| 139 EXCEPTION_MARK; | |
| 140 | |
| 141 VM_ForceSafepoint vfs; | |
| 142 VMThread::execute(&vfs); | |
| 143 // We could potential get an async. exception at this point. | |
| 144 // In that case we will rethrow it to ourselvs. | |
| 145 if (HAS_PENDING_EXCEPTION) { | |
| 146 oop exception = PENDING_EXCEPTION; | |
| 147 CLEAR_PENDING_EXCEPTION; | |
| 148 Thread::send_async_exception(JavaThread::current()->threadObj(), exception); | |
| 149 } | |
| 150 } | |
| 151 ShouldNotReachHere(); | |
| 152 return NULL; | |
| 153 } | |
| 154 | |
| 155 | |
| 156 void InlineCacheBuffer::update_inline_caches() { | |
| 157 if (buffer()->number_of_stubs() > 1) { | |
| 158 if (TraceICBuffer) { | |
| 159 tty->print_cr("[updating inline caches with %d stubs]", buffer()->number_of_stubs()); | |
| 160 } | |
| 161 buffer()->remove_all(); | |
| 162 init_next_stub(); | |
| 163 } | |
| 164 } | |
| 165 | |
| 166 | |
| 167 bool InlineCacheBuffer::contains(address instruction_address) { | |
| 168 return buffer()->contains(instruction_address); | |
| 169 } | |
| 170 | |
| 171 | |
| 172 bool InlineCacheBuffer::is_empty() { | |
| 173 return buffer()->number_of_stubs() == 1; // always has sentinel | |
| 174 } | |
| 175 | |
| 176 | |
| 177 void InlineCacheBuffer_init() { | |
| 178 InlineCacheBuffer::initialize(); | |
| 179 } | |
| 180 | |
| 181 | |
| 182 void InlineCacheBuffer::create_transition_stub(CompiledIC *ic, oop cached_oop, address entry) { | |
| 183 assert(!SafepointSynchronize::is_at_safepoint(), "should not be called during a safepoint"); | |
| 184 assert (CompiledIC_lock->is_locked(), ""); | |
| 185 assert(cached_oop == NULL || cached_oop->is_perm(), "must belong to perm. space"); | |
| 186 if (TraceICBuffer) { tty->print_cr(" create transition stub for " INTPTR_FORMAT, ic->instruction_address()); } | |
| 187 | |
| 188 // If an transition stub is already associate with the inline cache, then we remove the association. | |
| 189 if (ic->is_in_transition_state()) { | |
| 190 ICStub* old_stub = ICStub_from_destination_address(ic->stub_address()); | |
| 191 old_stub->clear(); | |
| 192 } | |
| 193 | |
| 194 // allocate and initialize new "out-of-line" inline-cache | |
| 195 ICStub* ic_stub = get_next_stub(); | |
| 196 ic_stub->set_stub(ic, cached_oop, entry); | |
| 197 | |
| 198 // Update inline cache in nmethod to point to new "out-of-line" allocated inline cache | |
| 199 ic->set_ic_destination(ic_stub->code_begin()); | |
| 200 | |
| 201 set_next_stub(new_ic_stub()); // can cause safepoint synchronization | |
| 202 } | |
| 203 | |
| 204 | |
| 205 address InlineCacheBuffer::ic_destination_for(CompiledIC *ic) { | |
| 206 ICStub* stub = ICStub_from_destination_address(ic->stub_address()); | |
| 207 return stub->destination(); | |
| 208 } | |
| 209 | |
| 210 | |
| 211 oop InlineCacheBuffer::cached_oop_for(CompiledIC *ic) { | |
| 212 ICStub* stub = ICStub_from_destination_address(ic->stub_address()); | |
| 213 return stub->cached_oop(); | |
| 214 } |