Mercurial > hg > truffle
annotate src/cpu/x86/vm/interpreter_x86_32.cpp @ 7212:291ffc492eb6
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Fri, 14 Dec 2012 14:35:13 +0100 |
| parents | cd3d6a6b95d9 |
| children | d3f14809b051 |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 1997, 2012, 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" |
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26 #include "asm/macroAssembler.hpp" |
| 1972 | 27 #include "interpreter/bytecodeHistogram.hpp" |
| 28 #include "interpreter/interpreter.hpp" | |
| 29 #include "interpreter/interpreterGenerator.hpp" | |
| 30 #include "interpreter/interpreterRuntime.hpp" | |
| 31 #include "interpreter/templateTable.hpp" | |
| 32 #include "oops/arrayOop.hpp" | |
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33 #include "oops/methodData.hpp" |
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34 #include "oops/method.hpp" |
| 1972 | 35 #include "oops/oop.inline.hpp" |
| 36 #include "prims/jvmtiExport.hpp" | |
| 37 #include "prims/jvmtiThreadState.hpp" | |
| 38 #include "prims/methodHandles.hpp" | |
| 39 #include "runtime/arguments.hpp" | |
| 40 #include "runtime/deoptimization.hpp" | |
| 41 #include "runtime/frame.inline.hpp" | |
| 42 #include "runtime/sharedRuntime.hpp" | |
| 43 #include "runtime/stubRoutines.hpp" | |
| 44 #include "runtime/synchronizer.hpp" | |
| 45 #include "runtime/timer.hpp" | |
| 46 #include "runtime/vframeArray.hpp" | |
| 47 #include "utilities/debug.hpp" | |
| 48 #ifdef COMPILER1 | |
| 49 #include "c1/c1_Runtime1.hpp" | |
| 50 #endif | |
| 0 | 51 |
| 52 #define __ _masm-> | |
| 53 | |
| 54 //------------------------------------------------------------------------------------------------------------------------ | |
| 55 | |
| 56 address AbstractInterpreterGenerator::generate_slow_signature_handler() { | |
| 57 address entry = __ pc(); | |
| 58 // rbx,: method | |
| 59 // rcx: temporary | |
| 60 // rdi: pointer to locals | |
| 61 // rsp: end of copied parameters area | |
| 304 | 62 __ mov(rcx, rsp); |
| 0 | 63 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::slow_signature_handler), rbx, rdi, rcx); |
| 64 __ ret(0); | |
| 65 return entry; | |
| 66 } | |
| 67 | |
| 68 | |
| 69 // | |
| 70 // Various method entries (that c++ and asm interpreter agree upon) | |
| 71 //------------------------------------------------------------------------------------------------------------------------ | |
| 72 // | |
| 73 // | |
| 74 | |
| 75 // Empty method, generate a very fast return. | |
| 76 | |
| 77 address InterpreterGenerator::generate_empty_entry(void) { | |
| 78 | |
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79 // rbx,: Method* |
| 0 | 80 // rcx: receiver (unused) |
| 81 // rsi: previous interpreter state (C++ interpreter) must preserve | |
| 82 // rsi: sender sp must set sp to this value on return | |
| 83 | |
| 84 if (!UseFastEmptyMethods) return NULL; | |
| 85 | |
| 86 address entry_point = __ pc(); | |
| 87 | |
| 88 // If we need a safepoint check, generate full interpreter entry. | |
| 89 Label slow_path; | |
| 90 ExternalAddress state(SafepointSynchronize::address_of_state()); | |
| 91 __ cmp32(ExternalAddress(SafepointSynchronize::address_of_state()), | |
| 92 SafepointSynchronize::_not_synchronized); | |
| 93 __ jcc(Assembler::notEqual, slow_path); | |
| 94 | |
| 95 // do nothing for empty methods (do not even increment invocation counter) | |
| 96 // Code: _return | |
| 97 // _return | |
| 98 // return w/o popping parameters | |
| 304 | 99 __ pop(rax); |
| 100 __ mov(rsp, rsi); | |
| 0 | 101 __ jmp(rax); |
| 102 | |
| 103 __ bind(slow_path); | |
| 104 (void) generate_normal_entry(false); | |
| 105 return entry_point; | |
| 106 } | |
| 107 | |
| 108 address InterpreterGenerator::generate_math_entry(AbstractInterpreter::MethodKind kind) { | |
| 109 | |
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110 // rbx,: Method* |
| 0 | 111 // rcx: scratrch |
| 112 // rsi: sender sp | |
| 113 | |
| 114 if (!InlineIntrinsics) return NULL; // Generate a vanilla entry | |
| 115 | |
| 116 address entry_point = __ pc(); | |
| 117 | |
| 118 // These don't need a safepoint check because they aren't virtually | |
| 119 // callable. We won't enter these intrinsics from compiled code. | |
| 120 // If in the future we added an intrinsic which was virtually callable | |
| 121 // we'd have to worry about how to safepoint so that this code is used. | |
| 122 | |
| 123 // mathematical functions inlined by compiler | |
| 124 // (interpreter must provide identical implementation | |
| 125 // in order to avoid monotonicity bugs when switching | |
| 126 // from interpreter to compiler in the middle of some | |
| 127 // computation) | |
| 128 // | |
| 129 // stack: [ ret adr ] <-- rsp | |
| 130 // [ lo(arg) ] | |
| 131 // [ hi(arg) ] | |
| 132 // | |
| 133 | |
| 134 // Note: For JDK 1.2 StrictMath doesn't exist and Math.sin/cos/sqrt are | |
| 135 // native methods. Interpreter::method_kind(...) does a check for | |
| 136 // native methods first before checking for intrinsic methods and | |
| 137 // thus will never select this entry point. Make sure it is not | |
| 138 // called accidentally since the SharedRuntime entry points will | |
| 139 // not work for JDK 1.2. | |
| 140 // | |
| 141 // We no longer need to check for JDK 1.2 since it's EOL'ed. | |
| 142 // The following check existed in pre 1.6 implementation, | |
| 143 // if (Universe::is_jdk12x_version()) { | |
| 144 // __ should_not_reach_here(); | |
| 145 // } | |
| 146 // Universe::is_jdk12x_version() always returns false since | |
| 147 // the JDK version is not yet determined when this method is called. | |
| 148 // This method is called during interpreter_init() whereas | |
| 149 // JDK version is only determined when universe2_init() is called. | |
| 150 | |
| 151 // Note: For JDK 1.3 StrictMath exists and Math.sin/cos/sqrt are | |
| 152 // java methods. Interpreter::method_kind(...) will select | |
| 153 // this entry point for the corresponding methods in JDK 1.3. | |
| 154 // get argument | |
| 1506 | 155 __ fld_d(Address(rsp, 1*wordSize)); |
| 0 | 156 switch (kind) { |
| 157 case Interpreter::java_lang_math_sin : | |
| 158 __ trigfunc('s'); | |
| 159 break; | |
| 160 case Interpreter::java_lang_math_cos : | |
| 161 __ trigfunc('c'); | |
| 162 break; | |
| 163 case Interpreter::java_lang_math_tan : | |
| 164 __ trigfunc('t'); | |
| 165 break; | |
| 166 case Interpreter::java_lang_math_sqrt: | |
| 167 __ fsqrt(); | |
| 168 break; | |
| 169 case Interpreter::java_lang_math_abs: | |
| 170 __ fabs(); | |
| 171 break; | |
| 172 case Interpreter::java_lang_math_log: | |
| 173 __ flog(); | |
| 174 // Store to stack to convert 80bit precision back to 64bits | |
| 175 __ push_fTOS(); | |
| 176 __ pop_fTOS(); | |
| 177 break; | |
| 178 case Interpreter::java_lang_math_log10: | |
| 179 __ flog10(); | |
| 180 // Store to stack to convert 80bit precision back to 64bits | |
| 181 __ push_fTOS(); | |
| 182 __ pop_fTOS(); | |
| 183 break; | |
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184 case Interpreter::java_lang_math_pow: |
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185 __ fld_d(Address(rsp, 3*wordSize)); // second argument |
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186 __ pow_with_fallback(0); |
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187 // Store to stack to convert 80bit precision back to 64bits |
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188 __ push_fTOS(); |
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189 __ pop_fTOS(); |
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190 break; |
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191 case Interpreter::java_lang_math_exp: |
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192 __ exp_with_fallback(0); |
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193 // Store to stack to convert 80bit precision back to 64bits |
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194 __ push_fTOS(); |
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195 __ pop_fTOS(); |
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196 break; |
| 0 | 197 default : |
| 198 ShouldNotReachHere(); | |
| 199 } | |
| 200 | |
| 201 // return double result in xmm0 for interpreter and compilers. | |
| 202 if (UseSSE >= 2) { | |
| 304 | 203 __ subptr(rsp, 2*wordSize); |
| 0 | 204 __ fstp_d(Address(rsp, 0)); |
| 205 __ movdbl(xmm0, Address(rsp, 0)); | |
| 304 | 206 __ addptr(rsp, 2*wordSize); |
| 0 | 207 } |
| 208 | |
| 209 // done, result in FPU ST(0) or XMM0 | |
| 304 | 210 __ pop(rdi); // get return address |
| 211 __ mov(rsp, rsi); // set sp to sender sp | |
| 0 | 212 __ jmp(rdi); |
| 213 | |
| 214 return entry_point; | |
| 215 } | |
| 216 | |
| 217 | |
| 218 // Abstract method entry | |
| 219 // Attempt to execute abstract method. Throw exception | |
| 220 address InterpreterGenerator::generate_abstract_entry(void) { | |
| 221 | |
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222 // rbx,: Method* |
| 0 | 223 // rcx: receiver (unused) |
| 224 // rsi: previous interpreter state (C++ interpreter) must preserve | |
| 225 | |
| 226 // rsi: sender SP | |
| 227 | |
| 228 address entry_point = __ pc(); | |
| 229 | |
| 230 // abstract method entry | |
| 231 | |
| 710 | 232 // pop return address, reset last_sp to NULL |
| 233 __ empty_expression_stack(); | |
| 234 __ restore_bcp(); // rsi must be correct for exception handler (was destroyed) | |
| 235 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) | |
| 236 | |
| 0 | 237 // throw exception |
| 238 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); | |
| 239 // the call_VM checks for exception, so we should never return here. | |
| 240 __ should_not_reach_here(); | |
| 241 | |
| 242 return entry_point; | |
| 243 } | |
| 244 | |
| 710 | 245 |
| 0 | 246 void Deoptimization::unwind_callee_save_values(frame* f, vframeArray* vframe_array) { |
| 247 | |
| 248 // This code is sort of the equivalent of C2IAdapter::setup_stack_frame back in | |
| 249 // the days we had adapter frames. When we deoptimize a situation where a | |
| 250 // compiled caller calls a compiled caller will have registers it expects | |
| 251 // to survive the call to the callee. If we deoptimize the callee the only | |
| 252 // way we can restore these registers is to have the oldest interpreter | |
| 253 // frame that we create restore these values. That is what this routine | |
| 254 // will accomplish. | |
| 255 | |
| 256 // At the moment we have modified c2 to not have any callee save registers | |
| 257 // so this problem does not exist and this routine is just a place holder. | |
| 258 | |
| 259 assert(f->is_interpreted_frame(), "must be interpreted"); | |
| 260 } |