/* * Copyright 1997-2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ #ifndef CC_INTERP // All the necessary definitions used for (bytecode) template generation. Instead of // spreading the implementation functionality for each bytecode in the interpreter // and the snippet generator, a template is assigned to each bytecode which can be // used to generate the bytecode's implementation if needed. // A Template describes the properties of a code template for a given bytecode // and provides a generator to generate the code template. class Template VALUE_OBJ_CLASS_SPEC { private: enum Flags { uses_bcp_bit, // set if template needs the bcp pointing to bytecode does_dispatch_bit, // set if template dispatches on its own calls_vm_bit, // set if template calls the vm wide_bit // set if template belongs to a wide instruction }; typedef void (*generator)(int arg); int _flags; // describes interpreter template properties (bcp unknown) TosState _tos_in; // tos cache state before template execution TosState _tos_out; // tos cache state after template execution generator _gen; // template code generator int _arg; // argument for template code generator void initialize(int flags, TosState tos_in, TosState tos_out, generator gen, int arg); friend class TemplateTable; public: Bytecodes::Code bytecode() const; bool is_valid() const { return _gen != NULL; } bool uses_bcp() const { return (_flags & (1 << uses_bcp_bit )) != 0; } bool does_dispatch() const { return (_flags & (1 << does_dispatch_bit)) != 0; } bool calls_vm() const { return (_flags & (1 << calls_vm_bit )) != 0; } bool is_wide() const { return (_flags & (1 << wide_bit )) != 0; } TosState tos_in() const { return _tos_in; } TosState tos_out() const { return _tos_out; } void generate(InterpreterMacroAssembler* masm); }; // The TemplateTable defines all Templates and provides accessor functions // to get the template for a given bytecode. class TemplateTable: AllStatic { public: enum Operation { add, sub, mul, div, rem, _and, _or, _xor, shl, shr, ushr }; enum Condition { equal, not_equal, less, less_equal, greater, greater_equal }; private: static bool _is_initialized; // true if TemplateTable has been initialized static Template _template_table [Bytecodes::number_of_codes]; static Template _template_table_wide[Bytecodes::number_of_codes]; static Template* _desc; // the current template to be generated static Bytecodes::Code bytecode() { return _desc->bytecode(); } static BarrierSet* _bs; // Cache the barrier set. public: //%note templates_1 static InterpreterMacroAssembler* _masm; // the assembler used when generating templates private: // special registers static inline Address at_bcp(int offset); // helpers static void unimplemented_bc(); static void patch_bytecode(Bytecodes::Code bc, Register scratch1, Register scratch2, bool load_bc_in_scratch = true); // C calls static void call_VM(Register oop_result, address entry_point); static void call_VM(Register oop_result, address entry_point, Register arg_1); static void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2); static void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2, Register arg_3); // these overloadings are not presently used on SPARC: static void call_VM(Register oop_result, Register last_java_sp, address entry_point); static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1); static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2); static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, Register arg_3); // bytecodes static void nop(); static void aconst_null(); static void iconst(int value); static void lconst(int value); static void fconst(int value); static void dconst(int value); static void bipush(); static void sipush(); static void ldc(bool wide); static void ldc2_w(); static void locals_index(Register reg, int offset = 1); static void iload(); static void fast_iload(); static void fast_iload2(); static void fast_icaload(); static void lload(); static void fload(); static void dload(); static void aload(); static void locals_index_wide(Register reg); static void wide_iload(); static void wide_lload(); static void wide_fload(); static void wide_dload(); static void wide_aload(); static void iaload(); static void laload(); static void faload(); static void daload(); static void aaload(); static void baload(); static void caload(); static void saload(); static void iload(int n); static void lload(int n); static void fload(int n); static void dload(int n); static void aload(int n); static void aload_0(); static void istore(); static void lstore(); static void fstore(); static void dstore(); static void astore(); static void wide_istore(); static void wide_lstore(); static void wide_fstore(); static void wide_dstore(); static void wide_astore(); static void iastore(); static void lastore(); static void fastore(); static void dastore(); static void aastore(); static void bastore(); static void castore(); static void sastore(); static void istore(int n); static void lstore(int n); static void fstore(int n); static void dstore(int n); static void astore(int n); static void pop(); static void pop2(); static void dup(); static void dup_x1(); static void dup_x2(); static void dup2(); static void dup2_x1(); static void dup2_x2(); static void swap(); static void iop2(Operation op); static void lop2(Operation op); static void fop2(Operation op); static void dop2(Operation op); static void idiv(); static void irem(); static void lmul(); static void ldiv(); static void lrem(); static void lshl(); static void lshr(); static void lushr(); static void ineg(); static void lneg(); static void fneg(); static void dneg(); static void iinc(); static void wide_iinc(); static void convert(); static void lcmp(); static void float_cmp (bool is_float, int unordered_result); static void float_cmp (int unordered_result); static void double_cmp(int unordered_result); static void count_calls(Register method, Register temp); static void branch(bool is_jsr, bool is_wide); static void if_0cmp (Condition cc); static void if_icmp (Condition cc); static void if_nullcmp(Condition cc); static void if_acmp (Condition cc); static void _goto(); static void jsr(); static void ret(); static void wide_ret(); static void goto_w(); static void jsr_w(); static void tableswitch(); static void lookupswitch(); static void fast_linearswitch(); static void fast_binaryswitch(); static void _return(TosState state); static void resolve_cache_and_index(int byte_no, Register cache, Register index); static void load_invoke_cp_cache_entry(int byte_no, Register method, Register itable_index, Register flags, bool is_invokevirtual = false, bool is_virtual_final = false); static void load_field_cp_cache_entry(Register obj, Register cache, Register index, Register offset, Register flags, bool is_static); static void invokevirtual(int byte_no); static void invokespecial(int byte_no); static void invokestatic(int byte_no); static void invokeinterface(int byte_no); static void invokedynamic(int byte_no); static void fast_invokevfinal(int byte_no); static void getfield_or_static(int byte_no, bool is_static); static void putfield_or_static(int byte_no, bool is_static); static void getfield(int byte_no); static void putfield(int byte_no); static void getstatic(int byte_no); static void putstatic(int byte_no); static void pop_and_check_object(Register obj); static void _new(); static void newarray(); static void anewarray(); static void arraylength(); static void checkcast(); static void instanceof(); static void athrow(); static void monitorenter(); static void monitorexit(); static void wide(); static void multianewarray(); static void fast_xaccess(TosState state); static void fast_accessfield(TosState state); static void fast_storefield(TosState state); static void _breakpoint(); static void shouldnotreachhere(); // jvmti support static void jvmti_post_field_access(Register cache, Register index, bool is_static, bool has_tos); static void jvmti_post_field_mod(Register cache, Register index, bool is_static); static void jvmti_post_fast_field_mod(); // debugging of TemplateGenerator static void transition(TosState tos_in, TosState tos_out);// checks if in/out states expected by template generator correspond to table entries // initialization helpers static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)( ), char filler ); static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(int arg ), int arg ); static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(bool arg ), bool arg ); static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(TosState tos), TosState tos); static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(Operation op), Operation op); static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(Condition cc), Condition cc); friend class Template; // InterpreterMacroAssembler::is_a(), etc., need TemplateTable::call_VM(). friend class InterpreterMacroAssembler; public: // Initialization static void initialize(); static void pd_initialize(); // Templates static Template* template_for (Bytecodes::Code code) { Bytecodes::check (code); return &_template_table [code]; } static Template* template_for_wide(Bytecodes::Code code) { Bytecodes::wide_check(code); return &_template_table_wide[code]; } // Platform specifics #include "incls/_templateTable_pd.hpp.incl" }; #endif /* !CC_INTERP */