1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/interpreter/bytecodes.cpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,575 @@
1.4 +/*
1.5 + * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#include "precompiled.hpp"
1.29 +#include "interpreter/bytecodes.hpp"
1.30 +#include "memory/resourceArea.hpp"
1.31 +#include "oops/method.hpp"
1.32 +#ifdef TARGET_ARCH_x86
1.33 +# include "bytes_x86.hpp"
1.34 +#endif
1.35 +#ifdef TARGET_ARCH_sparc
1.36 +# include "bytes_sparc.hpp"
1.37 +#endif
1.38 +#ifdef TARGET_ARCH_zero
1.39 +# include "bytes_zero.hpp"
1.40 +#endif
1.41 +#ifdef TARGET_ARCH_arm
1.42 +# include "bytes_arm.hpp"
1.43 +#endif
1.44 +#ifdef TARGET_ARCH_ppc
1.45 +# include "bytes_ppc.hpp"
1.46 +#endif
1.47 +
1.48 +
1.49 +#if defined(WIN32) && (defined(_MSC_VER) && (_MSC_VER < 1600))
1.50 +// Windows AMD64 Compiler Hangs compiling this file
1.51 +// unless optimization is off
1.52 +#ifdef _M_AMD64
1.53 +#pragma optimize ("", off)
1.54 +#endif
1.55 +#endif
1.56 +
1.57 +
1.58 +bool Bytecodes::_is_initialized = false;
1.59 +const char* Bytecodes::_name [Bytecodes::number_of_codes];
1.60 +BasicType Bytecodes::_result_type [Bytecodes::number_of_codes];
1.61 +s_char Bytecodes::_depth [Bytecodes::number_of_codes];
1.62 +u_char Bytecodes::_lengths [Bytecodes::number_of_codes];
1.63 +Bytecodes::Code Bytecodes::_java_code [Bytecodes::number_of_codes];
1.64 +u_short Bytecodes::_flags [(1<<BitsPerByte)*2];
1.65 +
1.66 +#ifdef ASSERT
1.67 +bool Bytecodes::check_method(const Method* method, address bcp) {
1.68 + return method->contains(bcp);
1.69 +}
1.70 +#endif
1.71 +
1.72 +bool Bytecodes::check_must_rewrite(Bytecodes::Code code) {
1.73 + assert(can_rewrite(code), "post-check only");
1.74 +
1.75 + // Some codes are conditionally rewriting. Look closely at them.
1.76 + switch (code) {
1.77 + case Bytecodes::_aload_0:
1.78 + // Even if RewriteFrequentPairs is turned on,
1.79 + // the _aload_0 code might delay its rewrite until
1.80 + // a following _getfield rewrites itself.
1.81 + return false;
1.82 +
1.83 + case Bytecodes::_lookupswitch:
1.84 + return false; // the rewrite is not done by the interpreter
1.85 +
1.86 + case Bytecodes::_new:
1.87 + // (Could actually look at the class here, but the profit would be small.)
1.88 + return false; // the rewrite is not always done
1.89 + }
1.90 +
1.91 + // No other special cases.
1.92 + return true;
1.93 +}
1.94 +
1.95 +Bytecodes::Code Bytecodes::code_at(Method* method, int bci) {
1.96 + return code_at(method, method->bcp_from(bci));
1.97 +}
1.98 +
1.99 +Bytecodes::Code Bytecodes::non_breakpoint_code_at(const Method* method, address bcp) {
1.100 + assert(method != NULL, "must have the method for breakpoint conversion");
1.101 + assert(method->contains(bcp), "must be valid bcp in method");
1.102 + return method->orig_bytecode_at(method->bci_from(bcp));
1.103 +}
1.104 +
1.105 +int Bytecodes::special_length_at(Bytecodes::Code code, address bcp, address end) {
1.106 + switch (code) {
1.107 + case _wide:
1.108 + if (end != NULL && bcp + 1 >= end) {
1.109 + return -1; // don't read past end of code buffer
1.110 + }
1.111 + return wide_length_for(cast(*(bcp + 1)));
1.112 + case _tableswitch:
1.113 + { address aligned_bcp = (address)round_to((intptr_t)bcp + 1, jintSize);
1.114 + if (end != NULL && aligned_bcp + 3*jintSize >= end) {
1.115 + return -1; // don't read past end of code buffer
1.116 + }
1.117 + jlong lo = (jint)Bytes::get_Java_u4(aligned_bcp + 1*jintSize);
1.118 + jlong hi = (jint)Bytes::get_Java_u4(aligned_bcp + 2*jintSize);
1.119 + jlong len = (aligned_bcp - bcp) + (3 + hi - lo + 1)*jintSize;
1.120 + // only return len if it can be represented as a positive int;
1.121 + // return -1 otherwise
1.122 + return (len > 0 && len == (int)len) ? len : -1;
1.123 + }
1.124 +
1.125 + case _lookupswitch: // fall through
1.126 + case _fast_binaryswitch: // fall through
1.127 + case _fast_linearswitch:
1.128 + { address aligned_bcp = (address)round_to((intptr_t)bcp + 1, jintSize);
1.129 + if (end != NULL && aligned_bcp + 2*jintSize >= end) {
1.130 + return -1; // don't read past end of code buffer
1.131 + }
1.132 + jlong npairs = (jint)Bytes::get_Java_u4(aligned_bcp + jintSize);
1.133 + jlong len = (aligned_bcp - bcp) + (2 + 2*npairs)*jintSize;
1.134 + // only return len if it can be represented as a positive int;
1.135 + // return -1 otherwise
1.136 + return (len > 0 && len == (int)len) ? len : -1;
1.137 + }
1.138 + }
1.139 + // Note: Length functions must return <=0 for invalid bytecodes.
1.140 + return 0;
1.141 +}
1.142 +
1.143 +// At a breakpoint instruction, this returns the breakpoint's length,
1.144 +// otherwise, it's the same as special_length_at(). This is used by
1.145 +// the RawByteCodeStream, which wants to see the actual bytecode
1.146 +// values (including breakpoint). RawByteCodeStream is used by the
1.147 +// verifier when reading in bytecode to verify. Other mechanisms that
1.148 +// run at runtime (such as generateOopMaps) need to iterate over the code
1.149 +// and don't expect to see breakpoints: they want to see the instruction
1.150 +// which was replaced so that they can get the correct length and find
1.151 +// the next bytecode.
1.152 +//
1.153 +// 'end' indicates the end of the code buffer, which we should not try to read
1.154 +// past.
1.155 +int Bytecodes::raw_special_length_at(address bcp, address end) {
1.156 + Code code = code_or_bp_at(bcp);
1.157 + if (code == _breakpoint) {
1.158 + return 1;
1.159 + } else {
1.160 + return special_length_at(code, bcp, end);
1.161 + }
1.162 +}
1.163 +
1.164 +
1.165 +
1.166 +void Bytecodes::def(Code code, const char* name, const char* format, const char* wide_format, BasicType result_type, int depth, bool can_trap) {
1.167 + def(code, name, format, wide_format, result_type, depth, can_trap, code);
1.168 +}
1.169 +
1.170 +
1.171 +void Bytecodes::def(Code code, const char* name, const char* format, const char* wide_format, BasicType result_type, int depth, bool can_trap, Code java_code) {
1.172 + assert(wide_format == NULL || format != NULL, "short form must exist if there's a wide form");
1.173 + int len = (format != NULL ? (int) strlen(format) : 0);
1.174 + int wlen = (wide_format != NULL ? (int) strlen(wide_format) : 0);
1.175 + _name [code] = name;
1.176 + _result_type [code] = result_type;
1.177 + _depth [code] = depth;
1.178 + _lengths [code] = (wlen << 4) | (len & 0xF);
1.179 + _java_code [code] = java_code;
1.180 + int bc_flags = 0;
1.181 + if (can_trap) bc_flags |= _bc_can_trap;
1.182 + if (java_code != code) bc_flags |= _bc_can_rewrite;
1.183 + _flags[(u1)code+0*(1<<BitsPerByte)] = compute_flags(format, bc_flags);
1.184 + _flags[(u1)code+1*(1<<BitsPerByte)] = compute_flags(wide_format, bc_flags);
1.185 + assert(is_defined(code) == (format != NULL), "");
1.186 + assert(wide_is_defined(code) == (wide_format != NULL), "");
1.187 + assert(length_for(code) == len, "");
1.188 + assert(wide_length_for(code) == wlen, "");
1.189 +}
1.190 +
1.191 +
1.192 +// Format strings interpretation:
1.193 +//
1.194 +// b: bytecode
1.195 +// c: signed constant, Java byte-ordering
1.196 +// i: unsigned local index, Java byte-ordering (I = native byte ordering)
1.197 +// j: unsigned CP cache index, Java byte-ordering (J = native byte ordering)
1.198 +// k: unsigned CP index, Java byte-ordering
1.199 +// o: branch offset, Java byte-ordering
1.200 +// _: unused/ignored
1.201 +// w: wide bytecode
1.202 +//
1.203 +// Note: The format strings are used for 2 purposes:
1.204 +// 1. to specify the length of the bytecode
1.205 +// (= number of characters in format string)
1.206 +// 2. to derive bytecode format flags (_fmt_has_k, etc.)
1.207 +//
1.208 +// Note: For bytecodes with variable length, the format string is the empty string.
1.209 +
1.210 +int Bytecodes::compute_flags(const char* format, int more_flags) {
1.211 + if (format == NULL) return 0; // not even more_flags
1.212 + int flags = more_flags;
1.213 + const char* fp = format;
1.214 + switch (*fp) {
1.215 + case '\0':
1.216 + flags |= _fmt_not_simple; // but variable
1.217 + break;
1.218 + case 'b':
1.219 + flags |= _fmt_not_variable; // but simple
1.220 + ++fp; // skip 'b'
1.221 + break;
1.222 + case 'w':
1.223 + flags |= _fmt_not_variable | _fmt_not_simple;
1.224 + ++fp; // skip 'w'
1.225 + guarantee(*fp == 'b', "wide format must start with 'wb'");
1.226 + ++fp; // skip 'b'
1.227 + break;
1.228 + }
1.229 +
1.230 + int has_nbo = 0, has_jbo = 0, has_size = 0;
1.231 + for (;;) {
1.232 + int this_flag = 0;
1.233 + char fc = *fp++;
1.234 + switch (fc) {
1.235 + case '\0': // end of string
1.236 + assert(flags == (jchar)flags, "change _format_flags");
1.237 + return flags;
1.238 +
1.239 + case '_': continue; // ignore these
1.240 +
1.241 + case 'j': this_flag = _fmt_has_j; has_jbo = 1; break;
1.242 + case 'k': this_flag = _fmt_has_k; has_jbo = 1; break;
1.243 + case 'i': this_flag = _fmt_has_i; has_jbo = 1; break;
1.244 + case 'c': this_flag = _fmt_has_c; has_jbo = 1; break;
1.245 + case 'o': this_flag = _fmt_has_o; has_jbo = 1; break;
1.246 +
1.247 + // uppercase versions mark native byte order (from Rewriter)
1.248 + // actually, only the 'J' case happens currently
1.249 + case 'J': this_flag = _fmt_has_j; has_nbo = 1; break;
1.250 + case 'K': this_flag = _fmt_has_k; has_nbo = 1; break;
1.251 + case 'I': this_flag = _fmt_has_i; has_nbo = 1; break;
1.252 + case 'C': this_flag = _fmt_has_c; has_nbo = 1; break;
1.253 + case 'O': this_flag = _fmt_has_o; has_nbo = 1; break;
1.254 + default: guarantee(false, "bad char in format");
1.255 + }
1.256 +
1.257 + flags |= this_flag;
1.258 +
1.259 + guarantee(!(has_jbo && has_nbo), "mixed byte orders in format");
1.260 + if (has_nbo)
1.261 + flags |= _fmt_has_nbo;
1.262 +
1.263 + int this_size = 1;
1.264 + if (*fp == fc) {
1.265 + // advance beyond run of the same characters
1.266 + this_size = 2;
1.267 + while (*++fp == fc) this_size++;
1.268 + switch (this_size) {
1.269 + case 2: flags |= _fmt_has_u2; break;
1.270 + case 4: flags |= _fmt_has_u4; break;
1.271 + default: guarantee(false, "bad rep count in format");
1.272 + }
1.273 + }
1.274 + guarantee(has_size == 0 || // no field yet
1.275 + this_size == has_size || // same size
1.276 + this_size < has_size && *fp == '\0', // last field can be short
1.277 + "mixed field sizes in format");
1.278 + has_size = this_size;
1.279 + }
1.280 +}
1.281 +
1.282 +void Bytecodes::initialize() {
1.283 + if (_is_initialized) return;
1.284 + assert(number_of_codes <= 256, "too many bytecodes");
1.285 +
1.286 + // initialize bytecode tables - didn't use static array initializers
1.287 + // (such as {}) so we can do additional consistency checks and init-
1.288 + // code is independent of actual bytecode numbering.
1.289 + //
1.290 + // Note 1: NULL for the format string means the bytecode doesn't exist
1.291 + // in that form.
1.292 + //
1.293 + // Note 2: The result type is T_ILLEGAL for bytecodes where the top of stack
1.294 + // type after execution is not only determined by the bytecode itself.
1.295 +
1.296 + // Java bytecodes
1.297 + // bytecode bytecode name format wide f. result tp stk traps
1.298 + def(_nop , "nop" , "b" , NULL , T_VOID , 0, false);
1.299 + def(_aconst_null , "aconst_null" , "b" , NULL , T_OBJECT , 1, false);
1.300 + def(_iconst_m1 , "iconst_m1" , "b" , NULL , T_INT , 1, false);
1.301 + def(_iconst_0 , "iconst_0" , "b" , NULL , T_INT , 1, false);
1.302 + def(_iconst_1 , "iconst_1" , "b" , NULL , T_INT , 1, false);
1.303 + def(_iconst_2 , "iconst_2" , "b" , NULL , T_INT , 1, false);
1.304 + def(_iconst_3 , "iconst_3" , "b" , NULL , T_INT , 1, false);
1.305 + def(_iconst_4 , "iconst_4" , "b" , NULL , T_INT , 1, false);
1.306 + def(_iconst_5 , "iconst_5" , "b" , NULL , T_INT , 1, false);
1.307 + def(_lconst_0 , "lconst_0" , "b" , NULL , T_LONG , 2, false);
1.308 + def(_lconst_1 , "lconst_1" , "b" , NULL , T_LONG , 2, false);
1.309 + def(_fconst_0 , "fconst_0" , "b" , NULL , T_FLOAT , 1, false);
1.310 + def(_fconst_1 , "fconst_1" , "b" , NULL , T_FLOAT , 1, false);
1.311 + def(_fconst_2 , "fconst_2" , "b" , NULL , T_FLOAT , 1, false);
1.312 + def(_dconst_0 , "dconst_0" , "b" , NULL , T_DOUBLE , 2, false);
1.313 + def(_dconst_1 , "dconst_1" , "b" , NULL , T_DOUBLE , 2, false);
1.314 + def(_bipush , "bipush" , "bc" , NULL , T_INT , 1, false);
1.315 + def(_sipush , "sipush" , "bcc" , NULL , T_INT , 1, false);
1.316 + def(_ldc , "ldc" , "bk" , NULL , T_ILLEGAL, 1, true );
1.317 + def(_ldc_w , "ldc_w" , "bkk" , NULL , T_ILLEGAL, 1, true );
1.318 + def(_ldc2_w , "ldc2_w" , "bkk" , NULL , T_ILLEGAL, 2, true );
1.319 + def(_iload , "iload" , "bi" , "wbii" , T_INT , 1, false);
1.320 + def(_lload , "lload" , "bi" , "wbii" , T_LONG , 2, false);
1.321 + def(_fload , "fload" , "bi" , "wbii" , T_FLOAT , 1, false);
1.322 + def(_dload , "dload" , "bi" , "wbii" , T_DOUBLE , 2, false);
1.323 + def(_aload , "aload" , "bi" , "wbii" , T_OBJECT , 1, false);
1.324 + def(_iload_0 , "iload_0" , "b" , NULL , T_INT , 1, false);
1.325 + def(_iload_1 , "iload_1" , "b" , NULL , T_INT , 1, false);
1.326 + def(_iload_2 , "iload_2" , "b" , NULL , T_INT , 1, false);
1.327 + def(_iload_3 , "iload_3" , "b" , NULL , T_INT , 1, false);
1.328 + def(_lload_0 , "lload_0" , "b" , NULL , T_LONG , 2, false);
1.329 + def(_lload_1 , "lload_1" , "b" , NULL , T_LONG , 2, false);
1.330 + def(_lload_2 , "lload_2" , "b" , NULL , T_LONG , 2, false);
1.331 + def(_lload_3 , "lload_3" , "b" , NULL , T_LONG , 2, false);
1.332 + def(_fload_0 , "fload_0" , "b" , NULL , T_FLOAT , 1, false);
1.333 + def(_fload_1 , "fload_1" , "b" , NULL , T_FLOAT , 1, false);
1.334 + def(_fload_2 , "fload_2" , "b" , NULL , T_FLOAT , 1, false);
1.335 + def(_fload_3 , "fload_3" , "b" , NULL , T_FLOAT , 1, false);
1.336 + def(_dload_0 , "dload_0" , "b" , NULL , T_DOUBLE , 2, false);
1.337 + def(_dload_1 , "dload_1" , "b" , NULL , T_DOUBLE , 2, false);
1.338 + def(_dload_2 , "dload_2" , "b" , NULL , T_DOUBLE , 2, false);
1.339 + def(_dload_3 , "dload_3" , "b" , NULL , T_DOUBLE , 2, false);
1.340 + def(_aload_0 , "aload_0" , "b" , NULL , T_OBJECT , 1, true ); // rewriting in interpreter
1.341 + def(_aload_1 , "aload_1" , "b" , NULL , T_OBJECT , 1, false);
1.342 + def(_aload_2 , "aload_2" , "b" , NULL , T_OBJECT , 1, false);
1.343 + def(_aload_3 , "aload_3" , "b" , NULL , T_OBJECT , 1, false);
1.344 + def(_iaload , "iaload" , "b" , NULL , T_INT , -1, true );
1.345 + def(_laload , "laload" , "b" , NULL , T_LONG , 0, true );
1.346 + def(_faload , "faload" , "b" , NULL , T_FLOAT , -1, true );
1.347 + def(_daload , "daload" , "b" , NULL , T_DOUBLE , 0, true );
1.348 + def(_aaload , "aaload" , "b" , NULL , T_OBJECT , -1, true );
1.349 + def(_baload , "baload" , "b" , NULL , T_INT , -1, true );
1.350 + def(_caload , "caload" , "b" , NULL , T_INT , -1, true );
1.351 + def(_saload , "saload" , "b" , NULL , T_INT , -1, true );
1.352 + def(_istore , "istore" , "bi" , "wbii" , T_VOID , -1, false);
1.353 + def(_lstore , "lstore" , "bi" , "wbii" , T_VOID , -2, false);
1.354 + def(_fstore , "fstore" , "bi" , "wbii" , T_VOID , -1, false);
1.355 + def(_dstore , "dstore" , "bi" , "wbii" , T_VOID , -2, false);
1.356 + def(_astore , "astore" , "bi" , "wbii" , T_VOID , -1, false);
1.357 + def(_istore_0 , "istore_0" , "b" , NULL , T_VOID , -1, false);
1.358 + def(_istore_1 , "istore_1" , "b" , NULL , T_VOID , -1, false);
1.359 + def(_istore_2 , "istore_2" , "b" , NULL , T_VOID , -1, false);
1.360 + def(_istore_3 , "istore_3" , "b" , NULL , T_VOID , -1, false);
1.361 + def(_lstore_0 , "lstore_0" , "b" , NULL , T_VOID , -2, false);
1.362 + def(_lstore_1 , "lstore_1" , "b" , NULL , T_VOID , -2, false);
1.363 + def(_lstore_2 , "lstore_2" , "b" , NULL , T_VOID , -2, false);
1.364 + def(_lstore_3 , "lstore_3" , "b" , NULL , T_VOID , -2, false);
1.365 + def(_fstore_0 , "fstore_0" , "b" , NULL , T_VOID , -1, false);
1.366 + def(_fstore_1 , "fstore_1" , "b" , NULL , T_VOID , -1, false);
1.367 + def(_fstore_2 , "fstore_2" , "b" , NULL , T_VOID , -1, false);
1.368 + def(_fstore_3 , "fstore_3" , "b" , NULL , T_VOID , -1, false);
1.369 + def(_dstore_0 , "dstore_0" , "b" , NULL , T_VOID , -2, false);
1.370 + def(_dstore_1 , "dstore_1" , "b" , NULL , T_VOID , -2, false);
1.371 + def(_dstore_2 , "dstore_2" , "b" , NULL , T_VOID , -2, false);
1.372 + def(_dstore_3 , "dstore_3" , "b" , NULL , T_VOID , -2, false);
1.373 + def(_astore_0 , "astore_0" , "b" , NULL , T_VOID , -1, false);
1.374 + def(_astore_1 , "astore_1" , "b" , NULL , T_VOID , -1, false);
1.375 + def(_astore_2 , "astore_2" , "b" , NULL , T_VOID , -1, false);
1.376 + def(_astore_3 , "astore_3" , "b" , NULL , T_VOID , -1, false);
1.377 + def(_iastore , "iastore" , "b" , NULL , T_VOID , -3, true );
1.378 + def(_lastore , "lastore" , "b" , NULL , T_VOID , -4, true );
1.379 + def(_fastore , "fastore" , "b" , NULL , T_VOID , -3, true );
1.380 + def(_dastore , "dastore" , "b" , NULL , T_VOID , -4, true );
1.381 + def(_aastore , "aastore" , "b" , NULL , T_VOID , -3, true );
1.382 + def(_bastore , "bastore" , "b" , NULL , T_VOID , -3, true );
1.383 + def(_castore , "castore" , "b" , NULL , T_VOID , -3, true );
1.384 + def(_sastore , "sastore" , "b" , NULL , T_VOID , -3, true );
1.385 + def(_pop , "pop" , "b" , NULL , T_VOID , -1, false);
1.386 + def(_pop2 , "pop2" , "b" , NULL , T_VOID , -2, false);
1.387 + def(_dup , "dup" , "b" , NULL , T_VOID , 1, false);
1.388 + def(_dup_x1 , "dup_x1" , "b" , NULL , T_VOID , 1, false);
1.389 + def(_dup_x2 , "dup_x2" , "b" , NULL , T_VOID , 1, false);
1.390 + def(_dup2 , "dup2" , "b" , NULL , T_VOID , 2, false);
1.391 + def(_dup2_x1 , "dup2_x1" , "b" , NULL , T_VOID , 2, false);
1.392 + def(_dup2_x2 , "dup2_x2" , "b" , NULL , T_VOID , 2, false);
1.393 + def(_swap , "swap" , "b" , NULL , T_VOID , 0, false);
1.394 + def(_iadd , "iadd" , "b" , NULL , T_INT , -1, false);
1.395 + def(_ladd , "ladd" , "b" , NULL , T_LONG , -2, false);
1.396 + def(_fadd , "fadd" , "b" , NULL , T_FLOAT , -1, false);
1.397 + def(_dadd , "dadd" , "b" , NULL , T_DOUBLE , -2, false);
1.398 + def(_isub , "isub" , "b" , NULL , T_INT , -1, false);
1.399 + def(_lsub , "lsub" , "b" , NULL , T_LONG , -2, false);
1.400 + def(_fsub , "fsub" , "b" , NULL , T_FLOAT , -1, false);
1.401 + def(_dsub , "dsub" , "b" , NULL , T_DOUBLE , -2, false);
1.402 + def(_imul , "imul" , "b" , NULL , T_INT , -1, false);
1.403 + def(_lmul , "lmul" , "b" , NULL , T_LONG , -2, false);
1.404 + def(_fmul , "fmul" , "b" , NULL , T_FLOAT , -1, false);
1.405 + def(_dmul , "dmul" , "b" , NULL , T_DOUBLE , -2, false);
1.406 + def(_idiv , "idiv" , "b" , NULL , T_INT , -1, true );
1.407 + def(_ldiv , "ldiv" , "b" , NULL , T_LONG , -2, true );
1.408 + def(_fdiv , "fdiv" , "b" , NULL , T_FLOAT , -1, false);
1.409 + def(_ddiv , "ddiv" , "b" , NULL , T_DOUBLE , -2, false);
1.410 + def(_irem , "irem" , "b" , NULL , T_INT , -1, true );
1.411 + def(_lrem , "lrem" , "b" , NULL , T_LONG , -2, true );
1.412 + def(_frem , "frem" , "b" , NULL , T_FLOAT , -1, false);
1.413 + def(_drem , "drem" , "b" , NULL , T_DOUBLE , -2, false);
1.414 + def(_ineg , "ineg" , "b" , NULL , T_INT , 0, false);
1.415 + def(_lneg , "lneg" , "b" , NULL , T_LONG , 0, false);
1.416 + def(_fneg , "fneg" , "b" , NULL , T_FLOAT , 0, false);
1.417 + def(_dneg , "dneg" , "b" , NULL , T_DOUBLE , 0, false);
1.418 + def(_ishl , "ishl" , "b" , NULL , T_INT , -1, false);
1.419 + def(_lshl , "lshl" , "b" , NULL , T_LONG , -1, false);
1.420 + def(_ishr , "ishr" , "b" , NULL , T_INT , -1, false);
1.421 + def(_lshr , "lshr" , "b" , NULL , T_LONG , -1, false);
1.422 + def(_iushr , "iushr" , "b" , NULL , T_INT , -1, false);
1.423 + def(_lushr , "lushr" , "b" , NULL , T_LONG , -1, false);
1.424 + def(_iand , "iand" , "b" , NULL , T_INT , -1, false);
1.425 + def(_land , "land" , "b" , NULL , T_LONG , -2, false);
1.426 + def(_ior , "ior" , "b" , NULL , T_INT , -1, false);
1.427 + def(_lor , "lor" , "b" , NULL , T_LONG , -2, false);
1.428 + def(_ixor , "ixor" , "b" , NULL , T_INT , -1, false);
1.429 + def(_lxor , "lxor" , "b" , NULL , T_LONG , -2, false);
1.430 + def(_iinc , "iinc" , "bic" , "wbiicc", T_VOID , 0, false);
1.431 + def(_i2l , "i2l" , "b" , NULL , T_LONG , 1, false);
1.432 + def(_i2f , "i2f" , "b" , NULL , T_FLOAT , 0, false);
1.433 + def(_i2d , "i2d" , "b" , NULL , T_DOUBLE , 1, false);
1.434 + def(_l2i , "l2i" , "b" , NULL , T_INT , -1, false);
1.435 + def(_l2f , "l2f" , "b" , NULL , T_FLOAT , -1, false);
1.436 + def(_l2d , "l2d" , "b" , NULL , T_DOUBLE , 0, false);
1.437 + def(_f2i , "f2i" , "b" , NULL , T_INT , 0, false);
1.438 + def(_f2l , "f2l" , "b" , NULL , T_LONG , 1, false);
1.439 + def(_f2d , "f2d" , "b" , NULL , T_DOUBLE , 1, false);
1.440 + def(_d2i , "d2i" , "b" , NULL , T_INT , -1, false);
1.441 + def(_d2l , "d2l" , "b" , NULL , T_LONG , 0, false);
1.442 + def(_d2f , "d2f" , "b" , NULL , T_FLOAT , -1, false);
1.443 + def(_i2b , "i2b" , "b" , NULL , T_BYTE , 0, false);
1.444 + def(_i2c , "i2c" , "b" , NULL , T_CHAR , 0, false);
1.445 + def(_i2s , "i2s" , "b" , NULL , T_SHORT , 0, false);
1.446 + def(_lcmp , "lcmp" , "b" , NULL , T_VOID , -3, false);
1.447 + def(_fcmpl , "fcmpl" , "b" , NULL , T_VOID , -1, false);
1.448 + def(_fcmpg , "fcmpg" , "b" , NULL , T_VOID , -1, false);
1.449 + def(_dcmpl , "dcmpl" , "b" , NULL , T_VOID , -3, false);
1.450 + def(_dcmpg , "dcmpg" , "b" , NULL , T_VOID , -3, false);
1.451 + def(_ifeq , "ifeq" , "boo" , NULL , T_VOID , -1, false);
1.452 + def(_ifne , "ifne" , "boo" , NULL , T_VOID , -1, false);
1.453 + def(_iflt , "iflt" , "boo" , NULL , T_VOID , -1, false);
1.454 + def(_ifge , "ifge" , "boo" , NULL , T_VOID , -1, false);
1.455 + def(_ifgt , "ifgt" , "boo" , NULL , T_VOID , -1, false);
1.456 + def(_ifle , "ifle" , "boo" , NULL , T_VOID , -1, false);
1.457 + def(_if_icmpeq , "if_icmpeq" , "boo" , NULL , T_VOID , -2, false);
1.458 + def(_if_icmpne , "if_icmpne" , "boo" , NULL , T_VOID , -2, false);
1.459 + def(_if_icmplt , "if_icmplt" , "boo" , NULL , T_VOID , -2, false);
1.460 + def(_if_icmpge , "if_icmpge" , "boo" , NULL , T_VOID , -2, false);
1.461 + def(_if_icmpgt , "if_icmpgt" , "boo" , NULL , T_VOID , -2, false);
1.462 + def(_if_icmple , "if_icmple" , "boo" , NULL , T_VOID , -2, false);
1.463 + def(_if_acmpeq , "if_acmpeq" , "boo" , NULL , T_VOID , -2, false);
1.464 + def(_if_acmpne , "if_acmpne" , "boo" , NULL , T_VOID , -2, false);
1.465 + def(_goto , "goto" , "boo" , NULL , T_VOID , 0, false);
1.466 + def(_jsr , "jsr" , "boo" , NULL , T_INT , 0, false);
1.467 + def(_ret , "ret" , "bi" , "wbii" , T_VOID , 0, false);
1.468 + def(_tableswitch , "tableswitch" , "" , NULL , T_VOID , -1, false); // may have backward branches
1.469 + def(_lookupswitch , "lookupswitch" , "" , NULL , T_VOID , -1, false); // rewriting in interpreter
1.470 + def(_ireturn , "ireturn" , "b" , NULL , T_INT , -1, true);
1.471 + def(_lreturn , "lreturn" , "b" , NULL , T_LONG , -2, true);
1.472 + def(_freturn , "freturn" , "b" , NULL , T_FLOAT , -1, true);
1.473 + def(_dreturn , "dreturn" , "b" , NULL , T_DOUBLE , -2, true);
1.474 + def(_areturn , "areturn" , "b" , NULL , T_OBJECT , -1, true);
1.475 + def(_return , "return" , "b" , NULL , T_VOID , 0, true);
1.476 + def(_getstatic , "getstatic" , "bJJ" , NULL , T_ILLEGAL, 1, true );
1.477 + def(_putstatic , "putstatic" , "bJJ" , NULL , T_ILLEGAL, -1, true );
1.478 + def(_getfield , "getfield" , "bJJ" , NULL , T_ILLEGAL, 0, true );
1.479 + def(_putfield , "putfield" , "bJJ" , NULL , T_ILLEGAL, -2, true );
1.480 + def(_invokevirtual , "invokevirtual" , "bJJ" , NULL , T_ILLEGAL, -1, true);
1.481 + def(_invokespecial , "invokespecial" , "bJJ" , NULL , T_ILLEGAL, -1, true);
1.482 + def(_invokestatic , "invokestatic" , "bJJ" , NULL , T_ILLEGAL, 0, true);
1.483 + def(_invokeinterface , "invokeinterface" , "bJJ__", NULL , T_ILLEGAL, -1, true);
1.484 + def(_invokedynamic , "invokedynamic" , "bJJJJ", NULL , T_ILLEGAL, 0, true );
1.485 + def(_new , "new" , "bkk" , NULL , T_OBJECT , 1, true );
1.486 + def(_newarray , "newarray" , "bc" , NULL , T_OBJECT , 0, true );
1.487 + def(_anewarray , "anewarray" , "bkk" , NULL , T_OBJECT , 0, true );
1.488 + def(_arraylength , "arraylength" , "b" , NULL , T_VOID , 0, true );
1.489 + def(_athrow , "athrow" , "b" , NULL , T_VOID , -1, true );
1.490 + def(_checkcast , "checkcast" , "bkk" , NULL , T_OBJECT , 0, true );
1.491 + def(_instanceof , "instanceof" , "bkk" , NULL , T_INT , 0, true );
1.492 + def(_monitorenter , "monitorenter" , "b" , NULL , T_VOID , -1, true );
1.493 + def(_monitorexit , "monitorexit" , "b" , NULL , T_VOID , -1, true );
1.494 + def(_wide , "wide" , "" , NULL , T_VOID , 0, false);
1.495 + def(_multianewarray , "multianewarray" , "bkkc" , NULL , T_OBJECT , 1, true );
1.496 + def(_ifnull , "ifnull" , "boo" , NULL , T_VOID , -1, false);
1.497 + def(_ifnonnull , "ifnonnull" , "boo" , NULL , T_VOID , -1, false);
1.498 + def(_goto_w , "goto_w" , "boooo", NULL , T_VOID , 0, false);
1.499 + def(_jsr_w , "jsr_w" , "boooo", NULL , T_INT , 0, false);
1.500 + def(_breakpoint , "breakpoint" , "" , NULL , T_VOID , 0, true);
1.501 +
1.502 + // JVM bytecodes
1.503 + // bytecode bytecode name format wide f. result tp stk traps std code
1.504 +
1.505 + def(_fast_agetfield , "fast_agetfield" , "bJJ" , NULL , T_OBJECT , 0, true , _getfield );
1.506 + def(_fast_bgetfield , "fast_bgetfield" , "bJJ" , NULL , T_INT , 0, true , _getfield );
1.507 + def(_fast_cgetfield , "fast_cgetfield" , "bJJ" , NULL , T_CHAR , 0, true , _getfield );
1.508 + def(_fast_dgetfield , "fast_dgetfield" , "bJJ" , NULL , T_DOUBLE , 0, true , _getfield );
1.509 + def(_fast_fgetfield , "fast_fgetfield" , "bJJ" , NULL , T_FLOAT , 0, true , _getfield );
1.510 + def(_fast_igetfield , "fast_igetfield" , "bJJ" , NULL , T_INT , 0, true , _getfield );
1.511 + def(_fast_lgetfield , "fast_lgetfield" , "bJJ" , NULL , T_LONG , 0, true , _getfield );
1.512 + def(_fast_sgetfield , "fast_sgetfield" , "bJJ" , NULL , T_SHORT , 0, true , _getfield );
1.513 +
1.514 + def(_fast_aputfield , "fast_aputfield" , "bJJ" , NULL , T_OBJECT , 0, true , _putfield );
1.515 + def(_fast_bputfield , "fast_bputfield" , "bJJ" , NULL , T_INT , 0, true , _putfield );
1.516 + def(_fast_cputfield , "fast_cputfield" , "bJJ" , NULL , T_CHAR , 0, true , _putfield );
1.517 + def(_fast_dputfield , "fast_dputfield" , "bJJ" , NULL , T_DOUBLE , 0, true , _putfield );
1.518 + def(_fast_fputfield , "fast_fputfield" , "bJJ" , NULL , T_FLOAT , 0, true , _putfield );
1.519 + def(_fast_iputfield , "fast_iputfield" , "bJJ" , NULL , T_INT , 0, true , _putfield );
1.520 + def(_fast_lputfield , "fast_lputfield" , "bJJ" , NULL , T_LONG , 0, true , _putfield );
1.521 + def(_fast_sputfield , "fast_sputfield" , "bJJ" , NULL , T_SHORT , 0, true , _putfield );
1.522 +
1.523 + def(_fast_aload_0 , "fast_aload_0" , "b" , NULL , T_OBJECT , 1, true , _aload_0 );
1.524 + def(_fast_iaccess_0 , "fast_iaccess_0" , "b_JJ" , NULL , T_INT , 1, true , _aload_0 );
1.525 + def(_fast_aaccess_0 , "fast_aaccess_0" , "b_JJ" , NULL , T_OBJECT , 1, true , _aload_0 );
1.526 + def(_fast_faccess_0 , "fast_faccess_0" , "b_JJ" , NULL , T_OBJECT , 1, true , _aload_0 );
1.527 +
1.528 + def(_fast_iload , "fast_iload" , "bi" , NULL , T_INT , 1, false, _iload);
1.529 + def(_fast_iload2 , "fast_iload2" , "bi_i" , NULL , T_INT , 2, false, _iload);
1.530 + def(_fast_icaload , "fast_icaload" , "bi_" , NULL , T_INT , 0, false, _iload);
1.531 +
1.532 + // Faster method invocation.
1.533 + def(_fast_invokevfinal , "fast_invokevfinal" , "bJJ" , NULL , T_ILLEGAL, -1, true, _invokevirtual );
1.534 +
1.535 + def(_fast_linearswitch , "fast_linearswitch" , "" , NULL , T_VOID , -1, false, _lookupswitch );
1.536 + def(_fast_binaryswitch , "fast_binaryswitch" , "" , NULL , T_VOID , -1, false, _lookupswitch );
1.537 +
1.538 + def(_return_register_finalizer , "return_register_finalizer" , "b" , NULL , T_VOID , 0, true, _return);
1.539 +
1.540 + def(_invokehandle , "invokehandle" , "bJJ" , NULL , T_ILLEGAL, -1, true, _invokevirtual );
1.541 +
1.542 + def(_fast_aldc , "fast_aldc" , "bj" , NULL , T_OBJECT, 1, true, _ldc );
1.543 + def(_fast_aldc_w , "fast_aldc_w" , "bJJ" , NULL , T_OBJECT, 1, true, _ldc_w );
1.544 +
1.545 + def(_shouldnotreachhere , "_shouldnotreachhere" , "b" , NULL , T_VOID , 0, false);
1.546 +
1.547 + // platform specific JVM bytecodes
1.548 + pd_initialize();
1.549 +
1.550 + // compare can_trap information for each bytecode with the
1.551 + // can_trap information for the corresponding base bytecode
1.552 + // (if a rewritten bytecode can trap, so must the base bytecode)
1.553 + #ifdef ASSERT
1.554 + { for (int i = 0; i < number_of_codes; i++) {
1.555 + if (is_defined(i)) {
1.556 + Code code = cast(i);
1.557 + Code java = java_code(code);
1.558 + if (can_trap(code) && !can_trap(java))
1.559 + fatal(err_msg("%s can trap => %s can trap, too", name(code),
1.560 + name(java)));
1.561 + }
1.562 + }
1.563 + }
1.564 + #endif
1.565 +
1.566 + // initialization successful
1.567 + _is_initialized = true;
1.568 +}
1.569 +
1.570 +
1.571 +void bytecodes_init() {
1.572 + Bytecodes::initialize();
1.573 +}
1.574 +
1.575 +// Restore optimization
1.576 +#ifdef _M_AMD64
1.577 +#pragma optimize ("", on)
1.578 +#endif
