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Diffstat (limited to 'binutils-2.24/gas/config/xtensa-relax.h')
| -rw-r--r-- | binutils-2.24/gas/config/xtensa-relax.h | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/binutils-2.24/gas/config/xtensa-relax.h b/binutils-2.24/gas/config/xtensa-relax.h deleted file mode 100644 index 4c56166c..00000000 --- a/binutils-2.24/gas/config/xtensa-relax.h +++ /dev/null @@ -1,189 +0,0 @@ -/* Table of relaxations for Xtensa assembly. - Copyright 2003, 2004, 2005, 2007, 2008, 2009 Free Software Foundation, Inc. - - This file is part of GAS, the GNU Assembler. - - GAS is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3, or (at your option) - any later version. - - GAS 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 for more details. - - You should have received a copy of the GNU General Public License - along with GAS; see the file COPYING. If not, write to - the Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, - MA 02110-1301, USA. */ - -#ifndef XTENSA_RELAX_H -#define XTENSA_RELAX_H - -#include "xtensa-isa.h" - - -/* Data structures for the table-driven relaxations for Xtensa processors. - See xtensa-relax.c for details. */ - -typedef struct transition_list TransitionList; -typedef struct transition_table TransitionTable; -typedef struct transition_rule TransitionRule; -typedef struct precondition_list PreconditionList; -typedef struct precondition Precondition; - -typedef struct req_or_option_list ReqOrOptionList; -typedef struct req_or_option_list ReqOrOption; -typedef struct req_option_list ReqOptionList; -typedef struct req_option_list ReqOption; - -struct transition_table -{ - int num_opcodes; - TransitionList **table; /* Possible transitions for each opcode. */ -}; - -struct transition_list -{ - TransitionRule *rule; - TransitionList *next; -}; - -struct precondition_list -{ - Precondition *precond; - PreconditionList *next; -}; - - -/* The required options for a rule are represented with a two-level - structure, with leaf expressions combined by logical ORs at the - lower level, and the results then combined by logical ANDs at the - top level. The AND terms are linked in a list, and each one can - contain a reference to a list of OR terms. The leaf expressions, - i.e., the OR options, can be negated by setting the is_true field - to FALSE. There are two classes of leaf expressions: (1) those - that are properties of the Xtensa configuration and can be - evaluated once when building the tables, and (2) those that depend - of the state of directives or other settings that may vary during - the assembly. The following expressions may be used in group (1): - - IsaUse*: Xtensa configuration settings. - realnop: TRUE if the instruction set includes a NOP instruction. - - There are currently no expressions in group (2), but they are still - supported since there is a good chance they'll be needed again for - something. */ - -struct req_option_list -{ - ReqOrOptionList *or_option_terms; - ReqOptionList *next; -}; - -struct req_or_option_list -{ - char *option_name; - bfd_boolean is_true; - ReqOrOptionList *next; -}; - -/* Operand types and constraints on operands: */ - -typedef enum op_type OpType; -typedef enum cmp_op CmpOp; - -enum op_type -{ - OP_CONSTANT, - OP_OPERAND, - OP_OPERAND_LOW8, /* Sign-extended low 8 bits of immed. */ - OP_OPERAND_HI24S, /* High 24 bits of immed, - plus 0x100 if low 8 bits are signed. */ - OP_OPERAND_F32MINUS, /* 32 - immed. */ - OP_OPERAND_LOW16U, /* Low 16 bits of immed. */ - OP_OPERAND_HI16U, /* High 16 bits of immed. */ - OP_LITERAL, - OP_FREEREG, - OP_LABEL -}; - -enum cmp_op -{ - OP_EQUAL, - OP_NOTEQUAL, -}; - -struct precondition -{ - CmpOp cmp; - int op_num; - OpType typ; /* CONSTANT: op_data is a constant. - OPERAND: operand op_num must equal op_data. - Cannot be LITERAL or LABEL. */ - int op_data; -}; - - -typedef struct build_op BuildOp; - -struct build_op -{ - int op_num; - OpType typ; - unsigned op_data; /* CONSTANT: op_data is the value to encode. - OPERAND: op_data is the field in the - source instruction to take the value from - and encode in the op_num field here. - LITERAL: op_data is field in the source - instruction that is stored in the literal. - LABEL: unused. */ - BuildOp *next; -}; - -typedef struct build_instr BuildInstr; -typedef enum instr_type InstrType; - -enum instr_type -{ - INSTR_INSTR, - INSTR_LITERAL_DEF, - INSTR_LABEL_DEF -}; - -struct build_instr -{ - InstrType typ; - xtensa_opcode opcode; /* Unused for LITERAL_DEF or LABEL_DEF. */ - BuildOp *ops; - BuildInstr *next; -}; - -struct transition_rule -{ - xtensa_opcode opcode; - PreconditionList *conditions; - ReqOptionList *options; - BuildInstr *to_instr; -}; - -typedef int (*transition_cmp_fn) (const TransitionRule *, - const TransitionRule *); - -extern TransitionTable *xg_build_simplify_table (transition_cmp_fn); -extern TransitionTable *xg_build_widen_table (transition_cmp_fn); - -extern bfd_boolean xg_has_userdef_op_fn (OpType); -extern long xg_apply_userdef_op_fn (OpType, long); - -enum flix_level -{ - FLIX_ALL, - FLIX_NO_GENERATE, - FLIX_NONE -}; - -extern enum flix_level produce_flix; - -#endif /* !XTENSA_RELAX_H */ |