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hotspot/src/share/vm/interpreter/templateTable.hpp
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329
hotspot/src/share/vm/interpreter/templateTable.hpp
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/*
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* Copyright 1997-2005 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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#ifndef CC_INTERP
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// All the necessary definitions used for (bytecode) template generation. Instead of
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// spreading the implementation functionality for each bytecode in the interpreter
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// and the snippet generator, a template is assigned to each bytecode which can be
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// used to generate the bytecode's implementation if needed.
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// A Template describes the properties of a code template for a given bytecode
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// and provides a generator to generate the code template.
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class Template VALUE_OBJ_CLASS_SPEC {
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private:
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enum Flags {
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uses_bcp_bit, // set if template needs the bcp pointing to bytecode
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does_dispatch_bit, // set if template dispatches on its own
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calls_vm_bit, // set if template calls the vm
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wide_bit // set if template belongs to a wide instruction
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};
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typedef void (*generator)(int arg);
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int _flags; // describes interpreter template properties (bcp unknown)
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TosState _tos_in; // tos cache state before template execution
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TosState _tos_out; // tos cache state after template execution
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generator _gen; // template code generator
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int _arg; // argument for template code generator
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void initialize(int flags, TosState tos_in, TosState tos_out, generator gen, int arg);
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friend class TemplateTable;
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public:
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Bytecodes::Code bytecode() const;
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bool is_valid() const { return _gen != NULL; }
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bool uses_bcp() const { return (_flags & (1 << uses_bcp_bit )) != 0; }
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bool does_dispatch() const { return (_flags & (1 << does_dispatch_bit)) != 0; }
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bool calls_vm() const { return (_flags & (1 << calls_vm_bit )) != 0; }
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bool is_wide() const { return (_flags & (1 << wide_bit )) != 0; }
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TosState tos_in() const { return _tos_in; }
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TosState tos_out() const { return _tos_out; }
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void generate(InterpreterMacroAssembler* masm);
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};
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// The TemplateTable defines all Templates and provides accessor functions
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// to get the template for a given bytecode.
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class TemplateTable: AllStatic {
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public:
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enum Operation { add, sub, mul, div, rem, _and, _or, _xor, shl, shr, ushr };
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enum Condition { equal, not_equal, less, less_equal, greater, greater_equal };
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private:
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static bool _is_initialized; // true if TemplateTable has been initialized
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static Template _template_table [Bytecodes::number_of_codes];
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static Template _template_table_wide[Bytecodes::number_of_codes];
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static Template* _desc; // the current template to be generated
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static Bytecodes::Code bytecode() { return _desc->bytecode(); }
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public:
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//%note templates_1
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static InterpreterMacroAssembler* _masm; // the assembler used when generating templates
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private:
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// special registers
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static inline Address at_bcp(int offset);
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// helpers
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static void unimplemented_bc();
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static void patch_bytecode(Bytecodes::Code bc, Register scratch1,
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Register scratch2, bool load_bc_in_scratch = true);
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// C calls
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static void call_VM(Register oop_result, address entry_point);
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static void call_VM(Register oop_result, address entry_point, Register arg_1);
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static void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2);
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static void call_VM(Register oop_result, address entry_point, Register arg_1, Register arg_2, Register arg_3);
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// these overloadings are not presently used on SPARC:
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static void call_VM(Register oop_result, Register last_java_sp, address entry_point);
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static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1);
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static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2);
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static void call_VM(Register oop_result, Register last_java_sp, address entry_point, Register arg_1, Register arg_2, Register arg_3);
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// bytecodes
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static void nop();
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static void aconst_null();
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static void iconst(int value);
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static void lconst(int value);
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static void fconst(int value);
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static void dconst(int value);
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static void bipush();
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static void sipush();
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static void ldc(bool wide);
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static void ldc2_w();
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static void locals_index(Register reg, int offset = 1);
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static void iload();
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static void fast_iload();
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static void fast_iload2();
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static void fast_icaload();
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static void lload();
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static void fload();
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static void dload();
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static void aload();
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static void locals_index_wide(Register reg);
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static void wide_iload();
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static void wide_lload();
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static void wide_fload();
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static void wide_dload();
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static void wide_aload();
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static void iaload();
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static void laload();
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static void faload();
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static void daload();
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static void aaload();
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static void baload();
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static void caload();
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static void saload();
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static void iload(int n);
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static void lload(int n);
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static void fload(int n);
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static void dload(int n);
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static void aload(int n);
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static void aload_0();
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static void istore();
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static void lstore();
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static void fstore();
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static void dstore();
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static void astore();
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static void wide_istore();
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static void wide_lstore();
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static void wide_fstore();
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static void wide_dstore();
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static void wide_astore();
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static void iastore();
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static void lastore();
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static void fastore();
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static void dastore();
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static void aastore();
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static void bastore();
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static void castore();
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static void sastore();
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static void istore(int n);
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static void lstore(int n);
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static void fstore(int n);
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static void dstore(int n);
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static void astore(int n);
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static void pop();
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static void pop2();
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static void dup();
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static void dup_x1();
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static void dup_x2();
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static void dup2();
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static void dup2_x1();
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static void dup2_x2();
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static void swap();
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static void iop2(Operation op);
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static void lop2(Operation op);
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static void fop2(Operation op);
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static void dop2(Operation op);
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static void idiv();
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static void irem();
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static void lmul();
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static void ldiv();
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static void lrem();
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static void lshl();
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static void lshr();
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static void lushr();
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static void ineg();
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static void lneg();
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static void fneg();
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static void dneg();
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static void iinc();
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static void wide_iinc();
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static void convert();
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static void lcmp();
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static void float_cmp (bool is_float, int unordered_result);
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static void float_cmp (int unordered_result);
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static void double_cmp(int unordered_result);
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static void count_calls(Register method, Register temp);
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static void branch(bool is_jsr, bool is_wide);
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static void if_0cmp (Condition cc);
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static void if_icmp (Condition cc);
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static void if_nullcmp(Condition cc);
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static void if_acmp (Condition cc);
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static void _goto();
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static void jsr();
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static void ret();
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static void wide_ret();
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static void goto_w();
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static void jsr_w();
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static void tableswitch();
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static void lookupswitch();
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static void fast_linearswitch();
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static void fast_binaryswitch();
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static void _return(TosState state);
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static void resolve_cache_and_index(int byte_no, Register cache, Register index);
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static void load_invoke_cp_cache_entry(int byte_no,
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Register method,
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Register itable_index,
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Register flags,
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bool is_invokevirtual = false,
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bool is_virtual_final = false);
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static void load_field_cp_cache_entry(Register obj,
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Register cache,
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Register index,
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Register offset,
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Register flags,
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bool is_static);
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static void invokevirtual(int byte_no);
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static void invokespecial(int byte_no);
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static void invokestatic(int byte_no);
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static void invokeinterface(int byte_no);
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static void fast_invokevfinal(int byte_no);
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static void getfield_or_static(int byte_no, bool is_static);
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static void putfield_or_static(int byte_no, bool is_static);
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static void getfield(int byte_no);
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static void putfield(int byte_no);
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static void getstatic(int byte_no);
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static void putstatic(int byte_no);
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static void pop_and_check_object(Register obj);
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static void _new();
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static void newarray();
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static void anewarray();
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static void arraylength();
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static void checkcast();
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static void instanceof();
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static void athrow();
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static void monitorenter();
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static void monitorexit();
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static void wide();
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static void multianewarray();
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static void fast_xaccess(TosState state);
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static void fast_accessfield(TosState state);
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static void fast_storefield(TosState state);
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static void _breakpoint();
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static void shouldnotreachhere();
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// jvmti support
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static void jvmti_post_field_access(Register cache, Register index, bool is_static, bool has_tos);
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static void jvmti_post_field_mod(Register cache, Register index, bool is_static);
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static void jvmti_post_fast_field_mod();
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// debugging of TemplateGenerator
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static void transition(TosState tos_in, TosState tos_out);// checks if in/out states expected by template generator correspond to table entries
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// initialization helpers
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static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)( ), char filler );
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static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(int arg ), int arg );
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static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(bool arg ), bool arg );
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static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(TosState tos), TosState tos);
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static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(Operation op), Operation op);
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static void def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(Condition cc), Condition cc);
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friend class Template;
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// InterpreterMacroAssembler::is_a(), etc., need TemplateTable::call_VM().
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friend class InterpreterMacroAssembler;
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public:
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// Initialization
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static void initialize();
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static void pd_initialize();
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// Templates
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static Template* template_for (Bytecodes::Code code) { Bytecodes::check (code); return &_template_table [code]; }
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static Template* template_for_wide(Bytecodes::Code code) { Bytecodes::wide_check(code); return &_template_table_wide[code]; }
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// Platform specifics
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#include "incls/_templateTable_pd.hpp.incl"
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};
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#endif /* !CC_INTERP */
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