1 /* 2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. 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 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_INTERPRETER_TEMPLATETABLE_HPP 26 #define SHARE_VM_INTERPRETER_TEMPLATETABLE_HPP 27 28 #include "interpreter/bytecodes.hpp" 29 #include "memory/allocation.hpp" 30 #include "runtime/frame.hpp" 31 32 #ifndef CC_INTERP 33 // All the necessary definitions used for (bytecode) template generation. Instead of 34 // spreading the implementation functionality for each bytecode in the interpreter 35 // and the snippet generator, a template is assigned to each bytecode which can be 36 // used to generate the bytecode's implementation if needed. 37 38 class InterpreterMacroAssembler; 39 40 // A Template describes the properties of a code template for a given bytecode 41 // and provides a generator to generate the code template. 42 43 class Template VALUE_OBJ_CLASS_SPEC { 44 private: 45 enum Flags { 46 uses_bcp_bit, // set if template needs the bcp pointing to bytecode 47 does_dispatch_bit, // set if template dispatches on its own 48 calls_vm_bit, // set if template calls the vm 49 wide_bit // set if template belongs to a wide instruction 50 }; 51 52 typedef void (*generator)(int arg); 53 54 int _flags; // describes interpreter template properties (bcp unknown) 55 TosState _tos_in; // tos cache state before template execution 56 TosState _tos_out; // tos cache state after template execution 57 generator _gen; // template code generator 58 int _arg; // argument for template code generator 59 60 void initialize(int flags, TosState tos_in, TosState tos_out, generator gen, int arg); 61 62 friend class TemplateTable; 63 64 public: 65 Bytecodes::Code bytecode() const; 66 bool is_valid() const { return _gen != NULL; } 67 bool uses_bcp() const { return (_flags & (1 << uses_bcp_bit )) != 0; } 68 bool does_dispatch() const { return (_flags & (1 << does_dispatch_bit)) != 0; } 69 bool calls_vm() const { return (_flags & (1 << calls_vm_bit )) != 0; } 70 bool is_wide() const { return (_flags & (1 << wide_bit )) != 0; } 71 TosState tos_in() const { return _tos_in; } 72 TosState tos_out() const { return _tos_out; } 73 void generate(InterpreterMacroAssembler* masm); 74 }; 75 76 77 // The TemplateTable defines all Templates and provides accessor functions 78 // to get the template for a given bytecode. 79 80 class TemplateTable: AllStatic { 81 public: 82 enum Operation { add, sub, mul, div, rem, _and, _or, _xor, shl, shr, ushr }; 83 enum Condition { equal, not_equal, less, less_equal, greater, greater_equal }; 84 enum CacheByte { f1_byte = 1, f2_byte = 2 }; // byte_no codes 85 86 private: 87 static bool _is_initialized; // true if TemplateTable has been initialized 88 static Template _template_table [Bytecodes::number_of_codes]; 89 static Template _template_table_wide[Bytecodes::number_of_codes]; 90 91 static Template* _desc; // the current template to be generated 92 static Bytecodes::Code bytecode() { return _desc->bytecode(); } 93 94 static BarrierSet* _bs; // Cache the barrier set. 95 public: 96 //%note templates_1 97 static InterpreterMacroAssembler* _masm; // the assembler used when generating templates 98 99 private: 100 101 // special registers 102 static inline Address at_bcp(int offset); 103 104 // helpers 105 static void unimplemented_bc(); 106 static void patch_bytecode(Bytecodes::Code bc, Register bc_reg, 107 Register temp_reg, bool load_bc_into_bc_reg = true, int byte_no = -1); 108 109 // C calls 110 static void call_VM(Register oop_result, address entry_point); 111 static void call_VM(Register oop_result, address entry_point, Register arg_1); 112 static void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2); 113 static void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2, Register arg_3); 114 115 // these overloadings are not presently used on SPARC: 116 static void call_VM(Register oop_result, Register last_java_sp, address entry_point); 117 static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1); 118 static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2); 119 static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, Register arg_3); 120 121 // bytecodes 122 static void nop(); 123 124 static void aconst_null(); 125 static void iconst(int value); 126 static void lconst(int value); 127 static void fconst(int value); 128 static void dconst(int value); 129 130 static void bipush(); 131 static void sipush(); 132 static void ldc(bool wide); 133 static void ldc2_w(); 134 static void fast_aldc(bool wide); 135 136 static void locals_index(Register reg, int offset = 1); 137 static void iload(); 138 static void fast_iload(); 139 static void fast_iload2(); 140 static void fast_icaload(); 141 static void lload(); 142 static void fload(); 143 static void dload(); 144 static void aload(); 145 146 static void locals_index_wide(Register reg); 147 static void wide_iload(); 148 static void wide_lload(); 149 static void wide_fload(); 150 static void wide_dload(); 151 static void wide_aload(); 152 153 static void iaload(); 154 static void laload(); 155 static void faload(); 156 static void daload(); 157 static void aaload(); 158 static void baload(); 159 static void caload(); 160 static void saload(); 161 162 static void iload(int n); 163 static void lload(int n); 164 static void fload(int n); 165 static void dload(int n); 166 static void aload(int n); 167 static void aload_0(); 168 169 static void istore(); 170 static void lstore(); 171 static void fstore(); 172 static void dstore(); 173 static void astore(); 174 175 static void wide_istore(); 176 static void wide_lstore(); 177 static void wide_fstore(); 178 static void wide_dstore(); 179 static void wide_astore(); 180 181 static void iastore(); 182 static void lastore(); 183 static void fastore(); 184 static void dastore(); 185 static void aastore(); 186 static void bastore(); 187 static void castore(); 188 static void sastore(); 189 190 static void istore(int n); 191 static void lstore(int n); 192 static void fstore(int n); 193 static void dstore(int n); 194 static void astore(int n); 195 196 static void pop(); 197 static void pop2(); 198 static void dup(); 199 static void dup_x1(); 200 static void dup_x2(); 201 static void dup2(); 202 static void dup2_x1(); 203 static void dup2_x2(); 204 static void swap(); 205 206 static void iop2(Operation op); 207 static void lop2(Operation op); 208 static void fop2(Operation op); 209 static void dop2(Operation op); 210 211 static void idiv(); 212 static void irem(); 213 214 static void lmul(); 215 static void ldiv(); 216 static void lrem(); 217 static void lshl(); 218 static void lshr(); 219 static void lushr(); 220 221 static void ineg(); 222 static void lneg(); 223 static void fneg(); 224 static void dneg(); 225 226 static void iinc(); 227 static void wide_iinc(); 228 static void convert(); 229 static void lcmp(); 230 231 static void float_cmp (bool is_float, int unordered_result); 232 static void float_cmp (int unordered_result); 233 static void double_cmp(int unordered_result); 234 235 static void count_calls(Register method, Register temp); 236 static void branch(bool is_jsr, bool is_wide); 237 static void if_0cmp (Condition cc); 238 static void if_icmp (Condition cc); 239 static void if_nullcmp(Condition cc); 240 static void if_acmp (Condition cc); 241 242 static void _goto(); 243 static void jsr(); 244 static void ret(); 245 static void wide_ret(); 246 247 static void goto_w(); 248 static void jsr_w(); 249 250 static void tableswitch(); 251 static void lookupswitch(); 252 static void fast_linearswitch(); 253 static void fast_binaryswitch(); 254 255 static void _return(TosState state); 256 257 static void resolve_cache_and_index(int byte_no, // one of 1,2,11 258 Register cache, // output for CP cache 259 Register index, // output for CP index 260 size_t index_size); // one of 1,2,4 261 static void load_invoke_cp_cache_entry(int byte_no, 262 Register method, 263 Register itable_index, 264 Register flags, 265 bool is_invokevirtual, 266 bool is_virtual_final, 267 bool is_invokedynamic); 268 static void load_field_cp_cache_entry(Register obj, 269 Register cache, 270 Register index, 271 Register offset, 272 Register flags, 273 bool is_static); 274 static void invokevirtual(int byte_no); 275 static void invokespecial(int byte_no); 276 static void invokestatic(int byte_no); 277 static void invokeinterface(int byte_no); 278 static void invokedynamic(int byte_no); 279 static void invokehandle(int byte_no); 280 static void fast_invokevfinal(int byte_no); 281 282 static void getfield_or_static(int byte_no, bool is_static); 283 static void putfield_or_static(int byte_no, bool is_static); 284 static void getfield(int byte_no); 285 static void putfield(int byte_no); 286 static void getstatic(int byte_no); 287 static void putstatic(int byte_no); 288 static void pop_and_check_object(Register obj); 289 290 static void _new(); 291 static void newarray(); 292 static void anewarray(); 293 static void arraylength(); 294 static void checkcast(); 295 static void instanceof(); 296 297 static void athrow(); 298 299 static void monitorenter(); 300 static void monitorexit(); 301 302 static void wide(); 303 static void multianewarray(); 304 305 static void fast_xaccess(TosState state); 306 static void fast_accessfield(TosState state); 307 static void fast_storefield(TosState state); 308 309 static void _breakpoint(); 310 311 static void shouldnotreachhere(); 312 313 // jvmti support 314 static void jvmti_post_field_access(Register cache, Register index, bool is_static, bool has_tos); 315 static void jvmti_post_field_mod(Register cache, Register index, bool is_static); 316 static void jvmti_post_fast_field_mod(); 317 318 // debugging of TemplateGenerator 319 static void transition(TosState tos_in, TosState tos_out);// checks if in/out states expected by template generator correspond to table entries 320 321 // initialization helpers 322 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)( ), char filler ); 323 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(int arg ), int arg ); 324 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(bool arg ), bool arg ); 325 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(TosState tos), TosState tos); 326 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(Operation op), Operation op); 327 static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(Condition cc), Condition cc); 328 329 friend class Template; 330 331 // InterpreterMacroAssembler::is_a(), etc., need TemplateTable::call_VM(). 332 friend class InterpreterMacroAssembler; 333 334 public: 335 // Initialization 336 static void initialize(); 337 static void pd_initialize(); 338 339 // Templates 340 static Template* template_for (Bytecodes::Code code) { Bytecodes::check (code); return &_template_table [code]; } 341 static Template* template_for_wide(Bytecodes::Code code) { Bytecodes::wide_check(code); return &_template_table_wide[code]; } 342 343 // Platform specifics 344 #if defined TEMPLATETABLE_MD_HPP 345 # include TEMPLATETABLE_MD_HPP 346 #elif defined TARGET_ARCH_MODEL_x86_32 347 # include "templateTable_x86_32.hpp" 348 #elif defined TARGET_ARCH_MODEL_x86_64 349 # include "templateTable_x86_64.hpp" 350 #elif defined TARGET_ARCH_MODEL_sparc 351 # include "templateTable_sparc.hpp" 352 #elif defined TARGET_ARCH_MODEL_zero 353 # include "templateTable_zero.hpp" 354 #elif defined TARGET_ARCH_MODEL_ppc_64 355 # include "templateTable_ppc_64.hpp" 356 #elif defined TARGET_ARCH_MODEL_aarch64 357 # include "templateTable_aarch64.hpp" 358 #endif 359 360 }; 361 #endif /* !CC_INTERP */ 362 363 #endif // SHARE_VM_INTERPRETER_TEMPLATETABLE_HPP