| /* |
| * Copyright (c) 1997, 2023, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "interpreter/bytecodes.hpp" |
| #include "memory/resourceArea.hpp" |
| #include "oops/method.hpp" |
| #include "utilities/align.hpp" |
| #include "utilities/bytes.hpp" |
| |
| #define JVM_BYTECODES_DO(def) \ |
| def(_fast_agetfield , "fast_agetfield" , "bJJ" , nullptr , T_OBJECT , 0, true , _getfield ) \ |
| def(_fast_bgetfield , "fast_bgetfield" , "bJJ" , nullptr , T_INT , 0, true , _getfield ) \ |
| def(_fast_cgetfield , "fast_cgetfield" , "bJJ" , nullptr , T_CHAR , 0, true , _getfield ) \ |
| def(_fast_dgetfield , "fast_dgetfield" , "bJJ" , nullptr , T_DOUBLE , 0, true , _getfield ) \ |
| def(_fast_fgetfield , "fast_fgetfield" , "bJJ" , nullptr , T_FLOAT , 0, true , _getfield ) \ |
| def(_fast_igetfield , "fast_igetfield" , "bJJ" , nullptr , T_INT , 0, true , _getfield ) \ |
| def(_fast_lgetfield , "fast_lgetfield" , "bJJ" , nullptr , T_LONG , 0, true , _getfield ) \ |
| def(_fast_sgetfield , "fast_sgetfield" , "bJJ" , nullptr , T_SHORT , 0, true , _getfield ) \ |
| \ |
| def(_fast_aputfield , "fast_aputfield" , "bJJ" , nullptr , T_OBJECT , 0, true , _putfield ) \ |
| def(_fast_bputfield , "fast_bputfield" , "bJJ" , nullptr , T_INT , 0, true , _putfield ) \ |
| def(_fast_zputfield , "fast_zputfield" , "bJJ" , nullptr , T_INT , 0, true , _putfield ) \ |
| def(_fast_cputfield , "fast_cputfield" , "bJJ" , nullptr , T_CHAR , 0, true , _putfield ) \ |
| def(_fast_dputfield , "fast_dputfield" , "bJJ" , nullptr , T_DOUBLE , 0, true , _putfield ) \ |
| def(_fast_fputfield , "fast_fputfield" , "bJJ" , nullptr , T_FLOAT , 0, true , _putfield ) \ |
| def(_fast_iputfield , "fast_iputfield" , "bJJ" , nullptr , T_INT , 0, true , _putfield ) \ |
| def(_fast_lputfield , "fast_lputfield" , "bJJ" , nullptr , T_LONG , 0, true , _putfield ) \ |
| def(_fast_sputfield , "fast_sputfield" , "bJJ" , nullptr , T_SHORT , 0, true , _putfield ) \ |
| \ |
| def(_fast_aload_0 , "fast_aload_0" , "b" , nullptr , T_OBJECT , 1, true , _aload_0 ) \ |
| def(_fast_iaccess_0 , "fast_iaccess_0" , "b_JJ" , nullptr , T_INT , 1, true , _aload_0 ) \ |
| def(_fast_aaccess_0 , "fast_aaccess_0" , "b_JJ" , nullptr , T_OBJECT , 1, true , _aload_0 ) \ |
| def(_fast_faccess_0 , "fast_faccess_0" , "b_JJ" , nullptr , T_OBJECT , 1, true , _aload_0 ) \ |
| \ |
| def(_fast_iload , "fast_iload" , "bi" , nullptr , T_INT , 1, false, _iload ) \ |
| def(_fast_iload2 , "fast_iload2" , "bi_i" , nullptr , T_INT , 2, false, _iload ) \ |
| def(_fast_icaload , "fast_icaload" , "bi_" , nullptr , T_INT , 0, false, _iload ) \ |
| \ |
| def(_fast_invokevfinal , "fast_invokevfinal" , "bJJ" , nullptr , T_ILLEGAL, -1, true , _invokevirtual ) \ |
| def(_fast_linearswitch , "fast_linearswitch" , "" , nullptr , T_VOID , -1, false, _lookupswitch ) \ |
| def(_fast_binaryswitch , "fast_binaryswitch" , "" , nullptr , T_VOID , -1, false, _lookupswitch ) \ |
| \ |
| def(_fast_aldc , "fast_aldc" , "bj" , nullptr , T_OBJECT , 1, true , _ldc ) \ |
| def(_fast_aldc_w , "fast_aldc_w" , "bJJ" , nullptr , T_OBJECT , 1, true , _ldc_w ) \ |
| \ |
| def(_return_register_finalizer , "return_register_finalizer" , "b" , nullptr , T_VOID , 0, true , _return ) \ |
| \ |
| def(_invokehandle , "invokehandle" , "bJJ" , nullptr , T_ILLEGAL, -1, true , _invokevirtual ) \ |
| \ |
| def(_nofast_getfield , "nofast_getfield" , "bJJ" , nullptr , T_ILLEGAL, 0, true , _getfield ) \ |
| def(_nofast_putfield , "nofast_putfield" , "bJJ" , nullptr , T_ILLEGAL, -2, true , _putfield ) \ |
| def(_nofast_aload_0 , "nofast_aload_0" , "b" , nullptr , T_OBJECT , 1, true , _aload_0 ) \ |
| def(_nofast_iload , "nofast_iload" , "bi" , nullptr , T_INT , 1, false, _iload ) \ |
| \ |
| def(_shouldnotreachhere , "_shouldnotreachhere" , "b" , nullptr , T_VOID , 0, false, _shouldnotreachhere) |
| |
| #define BYTECODES_DO(def) \ |
| def(_nop , "nop" , "b" , nullptr , T_VOID , 0, false, _nop ) \ |
| def(_aconst_null , "aconst_null" , "b" , nullptr , T_OBJECT , 1, false, _aconst_null ) \ |
| def(_iconst_m1 , "iconst_m1" , "b" , nullptr , T_INT , 1, false, _iconst_m1 ) \ |
| def(_iconst_0 , "iconst_0" , "b" , nullptr , T_INT , 1, false, _iconst_0 ) \ |
| def(_iconst_1 , "iconst_1" , "b" , nullptr , T_INT , 1, false, _iconst_1 ) \ |
| def(_iconst_2 , "iconst_2" , "b" , nullptr , T_INT , 1, false, _iconst_2 ) \ |
| def(_iconst_3 , "iconst_3" , "b" , nullptr , T_INT , 1, false, _iconst_3 ) \ |
| def(_iconst_4 , "iconst_4" , "b" , nullptr , T_INT , 1, false, _iconst_4 ) \ |
| def(_iconst_5 , "iconst_5" , "b" , nullptr , T_INT , 1, false, _iconst_5 ) \ |
| def(_lconst_0 , "lconst_0" , "b" , nullptr , T_LONG , 2, false, _lconst_0 ) \ |
| def(_lconst_1 , "lconst_1" , "b" , nullptr , T_LONG , 2, false, _lconst_1 ) \ |
| def(_fconst_0 , "fconst_0" , "b" , nullptr , T_FLOAT , 1, false, _fconst_0 ) \ |
| def(_fconst_1 , "fconst_1" , "b" , nullptr , T_FLOAT , 1, false, _fconst_1 ) \ |
| def(_fconst_2 , "fconst_2" , "b" , nullptr , T_FLOAT , 1, false, _fconst_2 ) \ |
| def(_dconst_0 , "dconst_0" , "b" , nullptr , T_DOUBLE , 2, false, _dconst_0 ) \ |
| def(_dconst_1 , "dconst_1" , "b" , nullptr , T_DOUBLE , 2, false, _dconst_1 ) \ |
| def(_bipush , "bipush" , "bc" , nullptr , T_INT , 1, false, _bipush ) \ |
| def(_sipush , "sipush" , "bcc" , nullptr , T_INT , 1, false, _sipush ) \ |
| def(_ldc , "ldc" , "bk" , nullptr , T_ILLEGAL, 1, true , _ldc ) \ |
| def(_ldc_w , "ldc_w" , "bkk" , nullptr , T_ILLEGAL, 1, true , _ldc_w ) \ |
| def(_ldc2_w , "ldc2_w" , "bkk" , nullptr , T_ILLEGAL, 2, true , _ldc2_w ) \ |
| def(_iload , "iload" , "bi" , "wbii" , T_INT , 1, false, _iload ) \ |
| def(_lload , "lload" , "bi" , "wbii" , T_LONG , 2, false, _lload ) \ |
| def(_fload , "fload" , "bi" , "wbii" , T_FLOAT , 1, false, _fload ) \ |
| def(_dload , "dload" , "bi" , "wbii" , T_DOUBLE , 2, false, _dload ) \ |
| def(_aload , "aload" , "bi" , "wbii" , T_OBJECT , 1, false, _aload ) \ |
| def(_iload_0 , "iload_0" , "b" , nullptr , T_INT , 1, false, _iload_0 ) \ |
| def(_iload_1 , "iload_1" , "b" , nullptr , T_INT , 1, false, _iload_1 ) \ |
| def(_iload_2 , "iload_2" , "b" , nullptr , T_INT , 1, false, _iload_2 ) \ |
| def(_iload_3 , "iload_3" , "b" , nullptr , T_INT , 1, false, _iload_3 ) \ |
| def(_lload_0 , "lload_0" , "b" , nullptr , T_LONG , 2, false, _lload_0 ) \ |
| def(_lload_1 , "lload_1" , "b" , nullptr , T_LONG , 2, false, _lload_1 ) \ |
| def(_lload_2 , "lload_2" , "b" , nullptr , T_LONG , 2, false, _lload_2 ) \ |
| def(_lload_3 , "lload_3" , "b" , nullptr , T_LONG , 2, false, _lload_3 ) \ |
| def(_fload_0 , "fload_0" , "b" , nullptr , T_FLOAT , 1, false, _fload_0 ) \ |
| def(_fload_1 , "fload_1" , "b" , nullptr , T_FLOAT , 1, false, _fload_1 ) \ |
| def(_fload_2 , "fload_2" , "b" , nullptr , T_FLOAT , 1, false, _fload_2 ) \ |
| def(_fload_3 , "fload_3" , "b" , nullptr , T_FLOAT , 1, false, _fload_3 ) \ |
| def(_dload_0 , "dload_0" , "b" , nullptr , T_DOUBLE , 2, false, _dload_0 ) \ |
| def(_dload_1 , "dload_1" , "b" , nullptr , T_DOUBLE , 2, false, _dload_1 ) \ |
| def(_dload_2 , "dload_2" , "b" , nullptr , T_DOUBLE , 2, false, _dload_2 ) \ |
| def(_dload_3 , "dload_3" , "b" , nullptr , T_DOUBLE , 2, false, _dload_3 ) \ |
| def(_aload_0 , "aload_0" , "b" , nullptr , T_OBJECT , 1, true , _aload_0 ) \ |
| def(_aload_1 , "aload_1" , "b" , nullptr , T_OBJECT , 1, false, _aload_1 ) \ |
| def(_aload_2 , "aload_2" , "b" , nullptr , T_OBJECT , 1, false, _aload_2 ) \ |
| def(_aload_3 , "aload_3" , "b" , nullptr , T_OBJECT , 1, false, _aload_3 ) \ |
| def(_iaload , "iaload" , "b" , nullptr , T_INT , -1, true , _iaload ) \ |
| def(_laload , "laload" , "b" , nullptr , T_LONG , 0, true , _laload ) \ |
| def(_faload , "faload" , "b" , nullptr , T_FLOAT , -1, true , _faload ) \ |
| def(_daload , "daload" , "b" , nullptr , T_DOUBLE , 0, true , _daload ) \ |
| def(_aaload , "aaload" , "b" , nullptr , T_OBJECT , -1, true , _aaload ) \ |
| def(_baload , "baload" , "b" , nullptr , T_INT , -1, true , _baload ) \ |
| def(_caload , "caload" , "b" , nullptr , T_INT , -1, true , _caload ) \ |
| def(_saload , "saload" , "b" , nullptr , T_INT , -1, true , _saload ) \ |
| def(_istore , "istore" , "bi" , "wbii" , T_VOID , -1, false, _istore ) \ |
| def(_lstore , "lstore" , "bi" , "wbii" , T_VOID , -2, false, _lstore ) \ |
| def(_fstore , "fstore" , "bi" , "wbii" , T_VOID , -1, false, _fstore ) \ |
| def(_dstore , "dstore" , "bi" , "wbii" , T_VOID , -2, false, _dstore ) \ |
| def(_astore , "astore" , "bi" , "wbii" , T_VOID , -1, false, _astore ) \ |
| def(_istore_0 , "istore_0" , "b" , nullptr , T_VOID , -1, false, _istore_0 ) \ |
| def(_istore_1 , "istore_1" , "b" , nullptr , T_VOID , -1, false, _istore_1 ) \ |
| def(_istore_2 , "istore_2" , "b" , nullptr , T_VOID , -1, false, _istore_2 ) \ |
| def(_istore_3 , "istore_3" , "b" , nullptr , T_VOID , -1, false, _istore_3 ) \ |
| def(_lstore_0 , "lstore_0" , "b" , nullptr , T_VOID , -2, false, _lstore_0 ) \ |
| def(_lstore_1 , "lstore_1" , "b" , nullptr , T_VOID , -2, false, _lstore_1 ) \ |
| def(_lstore_2 , "lstore_2" , "b" , nullptr , T_VOID , -2, false, _lstore_2 ) \ |
| def(_lstore_3 , "lstore_3" , "b" , nullptr , T_VOID , -2, false, _lstore_3 ) \ |
| def(_fstore_0 , "fstore_0" , "b" , nullptr , T_VOID , -1, false, _fstore_0 ) \ |
| def(_fstore_1 , "fstore_1" , "b" , nullptr , T_VOID , -1, false, _fstore_1 ) \ |
| def(_fstore_2 , "fstore_2" , "b" , nullptr , T_VOID , -1, false, _fstore_2 ) \ |
| def(_fstore_3 , "fstore_3" , "b" , nullptr , T_VOID , -1, false, _fstore_3 ) \ |
| def(_dstore_0 , "dstore_0" , "b" , nullptr , T_VOID , -2, false, _dstore_0 ) \ |
| def(_dstore_1 , "dstore_1" , "b" , nullptr , T_VOID , -2, false, _dstore_1 ) \ |
| def(_dstore_2 , "dstore_2" , "b" , nullptr , T_VOID , -2, false, _dstore_2 ) \ |
| def(_dstore_3 , "dstore_3" , "b" , nullptr , T_VOID , -2, false, _dstore_3 ) \ |
| def(_astore_0 , "astore_0" , "b" , nullptr , T_VOID , -1, false, _astore_0 ) \ |
| def(_astore_1 , "astore_1" , "b" , nullptr , T_VOID , -1, false, _astore_1 ) \ |
| def(_astore_2 , "astore_2" , "b" , nullptr , T_VOID , -1, false, _astore_2 ) \ |
| def(_astore_3 , "astore_3" , "b" , nullptr , T_VOID , -1, false, _astore_3 ) \ |
| def(_iastore , "iastore" , "b" , nullptr , T_VOID , -3, true , _iastore ) \ |
| def(_lastore , "lastore" , "b" , nullptr , T_VOID , -4, true , _lastore ) \ |
| def(_fastore , "fastore" , "b" , nullptr , T_VOID , -3, true , _fastore ) \ |
| def(_dastore , "dastore" , "b" , nullptr , T_VOID , -4, true , _dastore ) \ |
| def(_aastore , "aastore" , "b" , nullptr , T_VOID , -3, true , _aastore ) \ |
| def(_bastore , "bastore" , "b" , nullptr , T_VOID , -3, true , _bastore ) \ |
| def(_castore , "castore" , "b" , nullptr , T_VOID , -3, true , _castore ) \ |
| def(_sastore , "sastore" , "b" , nullptr , T_VOID , -3, true , _sastore ) \ |
| def(_pop , "pop" , "b" , nullptr , T_VOID , -1, false, _pop ) \ |
| def(_pop2 , "pop2" , "b" , nullptr , T_VOID , -2, false, _pop2 ) \ |
| def(_dup , "dup" , "b" , nullptr , T_VOID , 1, false, _dup ) \ |
| def(_dup_x1 , "dup_x1" , "b" , nullptr , T_VOID , 1, false, _dup_x1 ) \ |
| def(_dup_x2 , "dup_x2" , "b" , nullptr , T_VOID , 1, false, _dup_x2 ) \ |
| def(_dup2 , "dup2" , "b" , nullptr , T_VOID , 2, false, _dup2 ) \ |
| def(_dup2_x1 , "dup2_x1" , "b" , nullptr , T_VOID , 2, false, _dup2_x1 ) \ |
| def(_dup2_x2 , "dup2_x2" , "b" , nullptr , T_VOID , 2, false, _dup2_x2 ) \ |
| def(_swap , "swap" , "b" , nullptr , T_VOID , 0, false, _swap ) \ |
| def(_iadd , "iadd" , "b" , nullptr , T_INT , -1, false, _iadd ) \ |
| def(_ladd , "ladd" , "b" , nullptr , T_LONG , -2, false, _ladd ) \ |
| def(_fadd , "fadd" , "b" , nullptr , T_FLOAT , -1, false, _fadd ) \ |
| def(_dadd , "dadd" , "b" , nullptr , T_DOUBLE , -2, false, _dadd ) \ |
| def(_isub , "isub" , "b" , nullptr , T_INT , -1, false, _isub ) \ |
| def(_lsub , "lsub" , "b" , nullptr , T_LONG , -2, false, _lsub ) \ |
| def(_fsub , "fsub" , "b" , nullptr , T_FLOAT , -1, false, _fsub ) \ |
| def(_dsub , "dsub" , "b" , nullptr , T_DOUBLE , -2, false, _dsub ) \ |
| def(_imul , "imul" , "b" , nullptr , T_INT , -1, false, _imul ) \ |
| def(_lmul , "lmul" , "b" , nullptr , T_LONG , -2, false, _lmul ) \ |
| def(_fmul , "fmul" , "b" , nullptr , T_FLOAT , -1, false, _fmul ) \ |
| def(_dmul , "dmul" , "b" , nullptr , T_DOUBLE , -2, false, _dmul ) \ |
| def(_idiv , "idiv" , "b" , nullptr , T_INT , -1, true , _idiv ) \ |
| def(_ldiv , "ldiv" , "b" , nullptr , T_LONG , -2, true , _ldiv ) \ |
| def(_fdiv , "fdiv" , "b" , nullptr , T_FLOAT , -1, false, _fdiv ) \ |
| def(_ddiv , "ddiv" , "b" , nullptr , T_DOUBLE , -2, false, _ddiv ) \ |
| def(_irem , "irem" , "b" , nullptr , T_INT , -1, true , _irem ) \ |
| def(_lrem , "lrem" , "b" , nullptr , T_LONG , -2, true , _lrem ) \ |
| def(_frem , "frem" , "b" , nullptr , T_FLOAT , -1, false, _frem ) \ |
| def(_drem , "drem" , "b" , nullptr , T_DOUBLE , -2, false, _drem ) \ |
| def(_ineg , "ineg" , "b" , nullptr , T_INT , 0, false, _ineg ) \ |
| def(_lneg , "lneg" , "b" , nullptr , T_LONG , 0, false, _lneg ) \ |
| def(_fneg , "fneg" , "b" , nullptr , T_FLOAT , 0, false, _fneg ) \ |
| def(_dneg , "dneg" , "b" , nullptr , T_DOUBLE , 0, false, _dneg ) \ |
| def(_ishl , "ishl" , "b" , nullptr , T_INT , -1, false, _ishl ) \ |
| def(_lshl , "lshl" , "b" , nullptr , T_LONG , -1, false, _lshl ) \ |
| def(_ishr , "ishr" , "b" , nullptr , T_INT , -1, false, _ishr ) \ |
| def(_lshr , "lshr" , "b" , nullptr , T_LONG , -1, false, _lshr ) \ |
| def(_iushr , "iushr" , "b" , nullptr , T_INT , -1, false, _iushr ) \ |
| def(_lushr , "lushr" , "b" , nullptr , T_LONG , -1, false, _lushr ) \ |
| def(_iand , "iand" , "b" , nullptr , T_INT , -1, false, _iand ) \ |
| def(_land , "land" , "b" , nullptr , T_LONG , -2, false, _land ) \ |
| def(_ior , "ior" , "b" , nullptr , T_INT , -1, false, _ior ) \ |
| def(_lor , "lor" , "b" , nullptr , T_LONG , -2, false, _lor ) \ |
| def(_ixor , "ixor" , "b" , nullptr , T_INT , -1, false, _ixor ) \ |
| def(_lxor , "lxor" , "b" , nullptr , T_LONG , -2, false, _lxor ) \ |
| def(_iinc , "iinc" , "bic" , "wbiicc", T_VOID , 0, false, _iinc ) \ |
| def(_i2l , "i2l" , "b" , nullptr , T_LONG , 1, false, _i2l ) \ |
| def(_i2f , "i2f" , "b" , nullptr , T_FLOAT , 0, false, _i2f ) \ |
| def(_i2d , "i2d" , "b" , nullptr , T_DOUBLE , 1, false, _i2d ) \ |
| def(_l2i , "l2i" , "b" , nullptr , T_INT , -1, false, _l2i ) \ |
| def(_l2f , "l2f" , "b" , nullptr , T_FLOAT , -1, false, _l2f ) \ |
| def(_l2d , "l2d" , "b" , nullptr , T_DOUBLE , 0, false, _l2d ) \ |
| def(_f2i , "f2i" , "b" , nullptr , T_INT , 0, false, _f2i ) \ |
| def(_f2l , "f2l" , "b" , nullptr , T_LONG , 1, false, _f2l ) \ |
| def(_f2d , "f2d" , "b" , nullptr , T_DOUBLE , 1, false, _f2d ) \ |
| def(_d2i , "d2i" , "b" , nullptr , T_INT , -1, false, _d2i ) \ |
| def(_d2l , "d2l" , "b" , nullptr , T_LONG , 0, false, _d2l ) \ |
| def(_d2f , "d2f" , "b" , nullptr , T_FLOAT , -1, false, _d2f ) \ |
| def(_i2b , "i2b" , "b" , nullptr , T_BYTE , 0, false, _i2b ) \ |
| def(_i2c , "i2c" , "b" , nullptr , T_CHAR , 0, false, _i2c ) \ |
| def(_i2s , "i2s" , "b" , nullptr , T_SHORT , 0, false, _i2s ) \ |
| def(_lcmp , "lcmp" , "b" , nullptr , T_VOID , -3, false, _lcmp ) \ |
| def(_fcmpl , "fcmpl" , "b" , nullptr , T_VOID , -1, false, _fcmpl ) \ |
| def(_fcmpg , "fcmpg" , "b" , nullptr , T_VOID , -1, false, _fcmpg ) \ |
| def(_dcmpl , "dcmpl" , "b" , nullptr , T_VOID , -3, false, _dcmpl ) \ |
| def(_dcmpg , "dcmpg" , "b" , nullptr , T_VOID , -3, false, _dcmpg ) \ |
| def(_ifeq , "ifeq" , "boo" , nullptr , T_VOID , -1, false, _ifeq ) \ |
| def(_ifne , "ifne" , "boo" , nullptr , T_VOID , -1, false, _ifne ) \ |
| def(_iflt , "iflt" , "boo" , nullptr , T_VOID , -1, false, _iflt ) \ |
| def(_ifge , "ifge" , "boo" , nullptr , T_VOID , -1, false, _ifge ) \ |
| def(_ifgt , "ifgt" , "boo" , nullptr , T_VOID , -1, false, _ifgt ) \ |
| def(_ifle , "ifle" , "boo" , nullptr , T_VOID , -1, false, _ifle ) \ |
| def(_if_icmpeq , "if_icmpeq" , "boo" , nullptr , T_VOID , -2, false, _if_icmpeq ) \ |
| def(_if_icmpne , "if_icmpne" , "boo" , nullptr , T_VOID , -2, false, _if_icmpne ) \ |
| def(_if_icmplt , "if_icmplt" , "boo" , nullptr , T_VOID , -2, false, _if_icmplt ) \ |
| def(_if_icmpge , "if_icmpge" , "boo" , nullptr , T_VOID , -2, false, _if_icmpge ) \ |
| def(_if_icmpgt , "if_icmpgt" , "boo" , nullptr , T_VOID , -2, false, _if_icmpgt ) \ |
| def(_if_icmple , "if_icmple" , "boo" , nullptr , T_VOID , -2, false, _if_icmple ) \ |
| def(_if_acmpeq , "if_acmpeq" , "boo" , nullptr , T_VOID , -2, false, _if_acmpeq ) \ |
| def(_if_acmpne , "if_acmpne" , "boo" , nullptr , T_VOID , -2, false, _if_acmpne ) \ |
| def(_goto , "goto" , "boo" , nullptr , T_VOID , 0, false, _goto ) \ |
| def(_jsr , "jsr" , "boo" , nullptr , T_INT , 0, false, _jsr ) \ |
| def(_ret , "ret" , "bi" , "wbii" , T_VOID , 0, false, _ret ) \ |
| def(_tableswitch , "tableswitch" , "" , nullptr , T_VOID , -1, false, _tableswitch ) \ |
| def(_lookupswitch , "lookupswitch" , "" , nullptr , T_VOID , -1, false, _lookupswitch ) \ |
| def(_ireturn , "ireturn" , "b" , nullptr , T_INT , -1, true , _ireturn ) \ |
| def(_lreturn , "lreturn" , "b" , nullptr , T_LONG , -2, true , _lreturn ) \ |
| def(_freturn , "freturn" , "b" , nullptr , T_FLOAT , -1, true , _freturn ) \ |
| def(_dreturn , "dreturn" , "b" , nullptr , T_DOUBLE , -2, true , _dreturn ) \ |
| def(_areturn , "areturn" , "b" , nullptr , T_OBJECT , -1, true , _areturn ) \ |
| def(_return , "return" , "b" , nullptr , T_VOID , 0, true , _return ) \ |
| def(_getstatic , "getstatic" , "bJJ" , nullptr , T_ILLEGAL, 1, true , _getstatic ) \ |
| def(_putstatic , "putstatic" , "bJJ" , nullptr , T_ILLEGAL, -1, true , _putstatic ) \ |
| def(_getfield , "getfield" , "bJJ" , nullptr , T_ILLEGAL, 0, true , _getfield ) \ |
| def(_putfield , "putfield" , "bJJ" , nullptr , T_ILLEGAL, -2, true , _putfield ) \ |
| def(_invokevirtual , "invokevirtual" , "bJJ" , nullptr , T_ILLEGAL, -1, true , _invokevirtual ) \ |
| def(_invokespecial , "invokespecial" , "bJJ" , nullptr , T_ILLEGAL, -1, true , _invokespecial ) \ |
| def(_invokestatic , "invokestatic" , "bJJ" , nullptr , T_ILLEGAL, 0, true , _invokestatic ) \ |
| def(_invokeinterface , "invokeinterface" , "bJJ__", nullptr , T_ILLEGAL, -1, true , _invokeinterface) \ |
| def(_invokedynamic , "invokedynamic" , "bJJJJ", nullptr , T_ILLEGAL, 0, true , _invokedynamic ) \ |
| def(_new , "new" , "bkk" , nullptr , T_OBJECT , 1, true , _new ) \ |
| def(_newarray , "newarray" , "bc" , nullptr , T_OBJECT , 0, true , _newarray ) \ |
| def(_anewarray , "anewarray" , "bkk" , nullptr , T_OBJECT , 0, true , _anewarray ) \ |
| def(_arraylength , "arraylength" , "b" , nullptr , T_INT , 0, true , _arraylength ) \ |
| def(_athrow , "athrow" , "b" , nullptr , T_VOID , -1, true , _athrow ) \ |
| def(_checkcast , "checkcast" , "bkk" , nullptr , T_OBJECT , 0, true , _checkcast ) \ |
| def(_instanceof , "instanceof" , "bkk" , nullptr , T_INT , 0, true , _instanceof ) \ |
| def(_monitorenter , "monitorenter" , "b" , nullptr , T_VOID , -1, true , _monitorenter ) \ |
| def(_monitorexit , "monitorexit" , "b" , nullptr , T_VOID , -1, true , _monitorexit ) \ |
| def(_wide , "wide" , "" , nullptr , T_VOID , 0, false, _wide ) \ |
| def(_multianewarray , "multianewarray" , "bkkc" , nullptr , T_OBJECT , 1, true , _multianewarray ) \ |
| def(_ifnull , "ifnull" , "boo" , nullptr , T_VOID , -1, false, _ifnull ) \ |
| def(_ifnonnull , "ifnonnull" , "boo" , nullptr , T_VOID , -1, false, _ifnonnull ) \ |
| def(_goto_w , "goto_w" , "boooo", nullptr , T_VOID , 0, false, _goto_w ) \ |
| def(_jsr_w , "jsr_w" , "boooo", nullptr , T_INT , 0, false, _jsr_w ) \ |
| def(_breakpoint , "breakpoint" , "" , nullptr , T_VOID , 0, true , _breakpoint ) \ |
| JVM_BYTECODES_DO(def) |
| |
| bool Bytecodes::_is_initialized = false; |
| |
| const char* const Bytecodes::_name[Bytecodes::number_of_codes] = { |
| #define BYTECODE_NAME(code, name, format, wide_format, result_type, depth, can_trap, java_code) name, |
| BYTECODES_DO(BYTECODE_NAME) |
| #undef BYTECODE_NAME |
| }; |
| |
| const BasicType Bytecodes::_result_type[Bytecodes::number_of_codes] = { |
| #define BYTECODE_RESULT_TYPE(code, name, format, wide_format, result_type, depth, can_trap, java_code) result_type, |
| BYTECODES_DO(BYTECODE_RESULT_TYPE) |
| #undef BYTECODE_RESULT_TYPE |
| }; |
| |
| const s_char Bytecodes::_depth[Bytecodes::number_of_codes] = { |
| #define BYTECODE_DEPTH(code, name, format, wide_format, result_type, depth, can_trap, java_code) depth, |
| BYTECODES_DO(BYTECODE_DEPTH) |
| #undef BYTECODE_DEPTH |
| }; |
| |
| // Helper for determining the size (a.k.a. length) of a string literal. |
| struct StringLiteralSize { |
| template <size_t N> |
| static constexpr size_t invoke(const char (&)[N]) { |
| static_assert(N > 0, "N must be greater than 0"); |
| // The size is N - 1, as C strings have an implicit NUL at the end. So "foo" will result in N |
| // being 4, but we actually want 3. |
| return N - 1; |
| } |
| |
| static constexpr size_t invoke(std::nullptr_t) { |
| return 0; |
| } |
| }; |
| |
| #define STRING_SIZE(string) StringLiteralSize::invoke(string) |
| |
| const u_char Bytecodes::_lengths[Bytecodes::number_of_codes] = { |
| #define BYTECODE_LENGTHS(code, name, format, wide_format, result_type, depth, can_trap, java_code) static_cast<u_char>((STRING_SIZE(wide_format) << 4) | (STRING_SIZE(format) & 0xf)), |
| BYTECODES_DO(BYTECODE_LENGTHS) |
| #undef BYTECODE_LENGTHS |
| }; |
| |
| const Bytecodes::Code Bytecodes::_java_code[Bytecodes::number_of_codes] = { |
| #define BYTECODE_JAVA_CODE(code, name, format, wide_format, result_type, depth, can_trap, java_code) Bytecodes::java_code, |
| BYTECODES_DO(BYTECODE_JAVA_CODE) |
| #undef BYTECODE_JAVA_CODE |
| }; |
| |
| jchar Bytecodes::_flags[(1<<BitsPerByte)*2]; |
| |
| #ifdef ASSERT |
| bool Bytecodes::check_method(const Method* method, address bcp) { |
| return method->contains(bcp); |
| } |
| #endif |
| |
| bool Bytecodes::check_must_rewrite(Bytecodes::Code code) { |
| assert(can_rewrite(code), "post-check only"); |
| |
| // Some codes are conditionally rewriting. Look closely at them. |
| switch (code) { |
| case Bytecodes::_aload_0: |
| // Even if RewriteFrequentPairs is turned on, |
| // the _aload_0 code might delay its rewrite until |
| // a following _getfield rewrites itself. |
| return false; |
| |
| case Bytecodes::_lookupswitch: |
| return false; // the rewrite is not done by the interpreter |
| |
| case Bytecodes::_new: |
| // (Could actually look at the class here, but the profit would be small.) |
| return false; // the rewrite is not always done |
| |
| default: |
| // No other special cases. |
| return true; |
| } |
| } |
| |
| Bytecodes::Code Bytecodes::code_at(Method* method, int bci) { |
| return code_at(method, method->bcp_from(bci)); |
| } |
| |
| Bytecodes::Code Bytecodes::non_breakpoint_code_at(const Method* method, address bcp) { |
| assert(method != nullptr, "must have the method for breakpoint conversion"); |
| assert(method->contains(bcp), "must be valid bcp in method"); |
| return method->orig_bytecode_at(method->bci_from(bcp)); |
| } |
| |
| int Bytecodes::special_length_at(Bytecodes::Code code, address bcp, address end) { |
| switch (code) { |
| case _wide: |
| if (end != nullptr && bcp + 1 >= end) { |
| return -1; // don't read past end of code buffer |
| } |
| return wide_length_for(cast(*(bcp + 1))); |
| case _tableswitch: |
| { address aligned_bcp = align_up(bcp + 1, jintSize); |
| if (end != nullptr && aligned_bcp + 3*jintSize >= end) { |
| return -1; // don't read past end of code buffer |
| } |
| // Promote calculation to signed 64 bits to do range checks, used by the verifier. |
| jlong lo = (jint)Bytes::get_Java_u4(aligned_bcp + 1*jintSize); |
| jlong hi = (jint)Bytes::get_Java_u4(aligned_bcp + 2*jintSize); |
| jlong len = (aligned_bcp - bcp) + (3 + hi - lo + 1)*jintSize; |
| // Only return len if it can be represented as a positive int and lo <= hi. |
| // The caller checks for bytecode stream overflow. |
| if (lo <= hi && len == (int)len) { |
| assert(len > 0, "must be"); |
| return (int)len; |
| } else { |
| return -1; |
| } |
| } |
| |
| case _lookupswitch: // fall through |
| case _fast_binaryswitch: // fall through |
| case _fast_linearswitch: |
| { address aligned_bcp = align_up(bcp + 1, jintSize); |
| if (end != nullptr && aligned_bcp + 2*jintSize >= end) { |
| return -1; // don't read past end of code buffer |
| } |
| jlong npairs = (jint)Bytes::get_Java_u4(aligned_bcp + jintSize); |
| jlong len = (aligned_bcp - bcp) + (2 + 2*npairs)*jintSize; |
| // Only return len if it can be represented as a positive int and npairs >= 0. |
| if (npairs >= 0 && len == (int)len) { |
| assert(len > 0, "must be"); |
| return (int)len; |
| } else { |
| return -1; |
| } |
| } |
| default: |
| // Note: Length functions must return <=0 for invalid bytecodes. |
| return 0; |
| } |
| } |
| |
| // At a breakpoint instruction, this returns the breakpoint's length, |
| // otherwise, it's the same as special_length_at(). This is used by |
| // the RawByteCodeStream, which wants to see the actual bytecode |
| // values (including breakpoint). RawByteCodeStream is used by the |
| // verifier when reading in bytecode to verify. Other mechanisms that |
| // run at runtime (such as generateOopMaps) need to iterate over the code |
| // and don't expect to see breakpoints: they want to see the instruction |
| // which was replaced so that they can get the correct length and find |
| // the next bytecode. |
| // |
| // 'end' indicates the end of the code buffer, which we should not try to read |
| // past. |
| int Bytecodes::raw_special_length_at(address bcp, address end) { |
| Code code = code_or_bp_at(bcp); |
| if (code == _breakpoint) { |
| return 1; |
| } else { |
| return special_length_at(code, bcp, end); |
| } |
| } |
| |
| void Bytecodes::def_flags(Code code, const char* format, const char* wide_format, bool can_trap, Code java_code) { |
| assert(wide_format == nullptr || format != nullptr, "short form must exist if there's a wide form"); |
| #ifdef ASSERT |
| int len = (format != nullptr ? (int) strlen(format) : 0); |
| int wlen = (wide_format != nullptr ? (int) strlen(wide_format) : 0); |
| #endif |
| int bc_flags = 0; |
| if (can_trap) bc_flags |= _bc_can_trap; |
| if (java_code != code) bc_flags |= _bc_can_rewrite; |
| _flags[(u1)code+0*(1<<BitsPerByte)] = compute_flags(format, bc_flags); |
| _flags[(u1)code+1*(1<<BitsPerByte)] = compute_flags(wide_format, bc_flags); |
| assert(is_defined(code) == (format != nullptr), ""); |
| assert(wide_is_defined(code) == (wide_format != nullptr), ""); |
| assert(length_for(code) == len, ""); |
| assert(wide_length_for(code) == wlen, ""); |
| } |
| |
| |
| // Format strings interpretation: |
| // |
| // b: bytecode |
| // c: signed constant, Java byte-ordering |
| // i: unsigned local index, Java byte-ordering (I = native byte ordering) |
| // j: unsigned CP cache index, Java byte-ordering (J = native byte ordering) |
| // k: unsigned CP index, Java byte-ordering |
| // o: branch offset, Java byte-ordering |
| // _: unused/ignored |
| // w: wide bytecode |
| // |
| // Note: The format strings are used for 2 purposes: |
| // 1. to specify the length of the bytecode |
| // (= number of characters in format string) |
| // 2. to derive bytecode format flags (_fmt_has_k, etc.) |
| // |
| // Note: For bytecodes with variable length, the format string is the empty string. |
| |
| int Bytecodes::compute_flags(const char* format, int more_flags) { |
| if (format == nullptr) return 0; // not even more_flags |
| int flags = more_flags; |
| const char* fp = format; |
| switch (*fp) { |
| case '\0': |
| flags |= _fmt_not_simple; // but variable |
| break; |
| case 'b': |
| flags |= _fmt_not_variable; // but simple |
| ++fp; // skip 'b' |
| break; |
| case 'w': |
| flags |= _fmt_not_variable | _fmt_not_simple; |
| ++fp; // skip 'w' |
| guarantee(*fp == 'b', "wide format must start with 'wb'"); |
| ++fp; // skip 'b' |
| break; |
| } |
| |
| int has_nbo = 0, has_jbo = 0, has_size = 0; |
| for (;;) { |
| int this_flag = 0; |
| char fc = *fp++; |
| switch (fc) { |
| case '\0': // end of string |
| assert(flags == (jchar)flags, "change _format_flags"); |
| return flags; |
| |
| case '_': continue; // ignore these |
| |
| case 'j': this_flag = _fmt_has_j; has_jbo = 1; break; |
| case 'k': this_flag = _fmt_has_k; has_jbo = 1; break; |
| case 'i': this_flag = _fmt_has_i; has_jbo = 1; break; |
| case 'c': this_flag = _fmt_has_c; has_jbo = 1; break; |
| case 'o': this_flag = _fmt_has_o; has_jbo = 1; break; |
| |
| // uppercase versions mark native byte order (from Rewriter) |
| // actually, only the 'J' case happens currently |
| case 'J': this_flag = _fmt_has_j; has_nbo = 1; break; |
| case 'K': this_flag = _fmt_has_k; has_nbo = 1; break; |
| case 'I': this_flag = _fmt_has_i; has_nbo = 1; break; |
| case 'C': this_flag = _fmt_has_c; has_nbo = 1; break; |
| case 'O': this_flag = _fmt_has_o; has_nbo = 1; break; |
| default: guarantee(false, "bad char in format"); |
| } |
| |
| flags |= this_flag; |
| |
| guarantee(!(has_jbo && has_nbo), "mixed byte orders in format"); |
| if (has_nbo) |
| flags |= _fmt_has_nbo; |
| |
| int this_size = 1; |
| if (*fp == fc) { |
| // advance beyond run of the same characters |
| this_size = 2; |
| while (*++fp == fc) this_size++; |
| switch (this_size) { |
| case 2: flags |= _fmt_has_u2; break; |
| case 4: flags |= _fmt_has_u4; break; |
| default: guarantee(false, "bad rep count in format"); |
| } |
| } |
| guarantee(has_size == 0 || // no field yet |
| this_size == has_size || // same size |
| this_size < has_size && *fp == '\0', // last field can be short |
| "mixed field sizes in format"); |
| has_size = this_size; |
| } |
| } |
| |
| void Bytecodes::initialize() { |
| if (_is_initialized) return; |
| |
| // initialize bytecode tables - didn't use static array initializers |
| // (such as {}) so we can do additional consistency checks and init- |
| // code is independent of actual bytecode numbering. |
| // |
| // Note 1: The result type is T_ILLEGAL for bytecodes where the top of stack |
| // type after execution is not only determined by the bytecode itself. |
| |
| #define BYTECODE(code, name, format, wide_format, result_type, depth, can_trap, java_code) \ |
| assert(strcmp(_name[code], name) == 0, "bytecode name mismatch"); \ |
| assert(_result_type[code] == result_type, "bytecode result_type mismatch"); \ |
| assert(_depth[code] == depth, "bytecode depth mismatch"); \ |
| assert(_lengths[code] == ((STRING_SIZE(wide_format) << 4) | (STRING_SIZE(format) & 0xF)), \ |
| "bytecode lengths mismatch"); \ |
| assert(_java_code[code] == java_code, "bytecode java_code mismatch"); \ |
| def_flags(code, format, wide_format, can_trap, java_code); |
| BYTECODES_DO(BYTECODE) |
| #undef BYTECODE |
| |
| // compare can_trap information for each bytecode with the |
| // can_trap information for the corresponding base bytecode |
| // (if a rewritten bytecode can trap, so must the base bytecode) |
| #ifdef ASSERT |
| { for (int i = 0; i < number_of_codes; i++) { |
| if (is_defined(i)) { |
| Code code = cast(i); |
| Code java = java_code(code); |
| if (can_trap(code) && !can_trap(java)) |
| fatal("%s can trap => %s can trap, too", name(code), name(java)); |
| } |
| } |
| } |
| #endif |
| |
| // initialization successful |
| _is_initialized = true; |
| } |
| |
| |
| void bytecodes_init() { |
| Bytecodes::initialize(); |
| } |
| |
| // Restore optimization |
| #ifdef _M_AMD64 |
| #pragma optimize ("", on) |
| #endif |
