405 lines
12 KiB
C++
405 lines
12 KiB
C++
/* GCC core type declarations.
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Copyright (C) 2002-2016 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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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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for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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/* Provide forward declarations of core types which are referred to by
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most of the compiler. This allows header files to use these types
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(e.g. in function prototypes) without concern for whether the full
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definitions are visible. Some other declarations that need to be
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universally visible are here, too.
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In the context of tconfig.h, most of these have special definitions
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which prevent them from being used except in further type
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declarations. This is a kludge; the right thing is to avoid
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including the "tm.h" header set in the context of tconfig.h, but
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we're not there yet. */
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#ifndef GCC_CORETYPES_H
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#define GCC_CORETYPES_H
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#ifndef GTY
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#define GTY(x) /* nothing - marker for gengtype */
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#endif
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#ifndef USED_FOR_TARGET
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typedef int64_t gcov_type;
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typedef uint64_t gcov_type_unsigned;
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struct bitmap_head;
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typedef struct bitmap_head *bitmap;
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typedef const struct bitmap_head *const_bitmap;
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struct simple_bitmap_def;
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typedef struct simple_bitmap_def *sbitmap;
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typedef const struct simple_bitmap_def *const_sbitmap;
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struct rtx_def;
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typedef struct rtx_def *rtx;
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typedef const struct rtx_def *const_rtx;
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/* Subclasses of rtx_def, using indentation to show the class
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hierarchy, along with the relevant invariant.
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Where possible, keep this list in the same order as in rtl.def. */
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class rtx_def;
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class rtx_expr_list; /* GET_CODE (X) == EXPR_LIST */
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class rtx_insn_list; /* GET_CODE (X) == INSN_LIST */
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class rtx_sequence; /* GET_CODE (X) == SEQUENCE */
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class rtx_insn;
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class rtx_debug_insn; /* DEBUG_INSN_P (X) */
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class rtx_nonjump_insn; /* NONJUMP_INSN_P (X) */
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class rtx_jump_insn; /* JUMP_P (X) */
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class rtx_call_insn; /* CALL_P (X) */
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class rtx_jump_table_data; /* JUMP_TABLE_DATA_P (X) */
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class rtx_barrier; /* BARRIER_P (X) */
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class rtx_code_label; /* LABEL_P (X) */
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class rtx_note; /* NOTE_P (X) */
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struct rtvec_def;
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typedef struct rtvec_def *rtvec;
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typedef const struct rtvec_def *const_rtvec;
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struct hwivec_def;
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typedef struct hwivec_def *hwivec;
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typedef const struct hwivec_def *const_hwivec;
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union tree_node;
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typedef union tree_node *tree;
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typedef const union tree_node *const_tree;
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struct gimple;
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typedef gimple *gimple_seq;
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struct gimple_stmt_iterator;
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/* Forward decls for leaf gimple subclasses (for individual gimple codes).
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Keep this in the same order as the corresponding codes in gimple.def. */
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struct gcond;
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struct gdebug;
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struct ggoto;
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struct glabel;
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struct gswitch;
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struct gassign;
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struct gasm;
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struct gcall;
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struct gtransaction;
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struct greturn;
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struct gbind;
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struct gcatch;
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struct geh_filter;
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struct geh_mnt;
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struct geh_else;
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struct gresx;
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struct geh_dispatch;
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struct gphi;
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struct gtry;
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struct gomp_atomic_load;
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struct gomp_atomic_store;
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struct gomp_continue;
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struct gomp_critical;
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struct gomp_ordered;
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struct gomp_for;
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struct gomp_parallel;
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struct gomp_task;
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struct gomp_sections;
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struct gomp_single;
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struct gomp_target;
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struct gomp_teams;
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union section;
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typedef union section section;
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struct gcc_options;
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struct cl_target_option;
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struct cl_optimization;
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struct cl_option;
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struct cl_decoded_option;
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struct cl_option_handlers;
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struct diagnostic_context;
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struct pretty_printer;
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/* Address space number for named address space support. */
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typedef unsigned char addr_space_t;
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/* The value of addr_space_t that represents the generic address space. */
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#define ADDR_SPACE_GENERIC 0
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#define ADDR_SPACE_GENERIC_P(AS) ((AS) == ADDR_SPACE_GENERIC)
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/* The major intermediate representations of GCC. */
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enum ir_type {
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IR_GIMPLE,
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IR_RTL_CFGRTL,
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IR_RTL_CFGLAYOUT
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};
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/* Provide forward struct declaration so that we don't have to include
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all of cpplib.h whenever a random prototype includes a pointer.
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Note that the cpp_reader and cpp_token typedefs remain part of
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cpplib.h. */
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struct cpp_reader;
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struct cpp_token;
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/* The thread-local storage model associated with a given VAR_DECL
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or SYMBOL_REF. This isn't used much, but both trees and RTL refer
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to it, so it's here. */
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enum tls_model {
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TLS_MODEL_NONE,
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TLS_MODEL_EMULATED,
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TLS_MODEL_REAL,
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TLS_MODEL_GLOBAL_DYNAMIC = TLS_MODEL_REAL,
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TLS_MODEL_LOCAL_DYNAMIC,
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TLS_MODEL_INITIAL_EXEC,
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TLS_MODEL_LOCAL_EXEC
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};
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/* Types of ABI for an offload compiler. */
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enum offload_abi {
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OFFLOAD_ABI_UNSET,
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OFFLOAD_ABI_LP64,
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OFFLOAD_ABI_ILP32
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};
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/* Types of unwind/exception handling info that can be generated. */
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enum unwind_info_type
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{
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UI_NONE,
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UI_SJLJ,
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UI_DWARF2,
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UI_TARGET,
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UI_SEH
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};
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/* Callgraph node profile representation. */
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enum node_frequency {
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/* This function most likely won't be executed at all.
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(set only when profile feedback is available or via function attribute). */
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NODE_FREQUENCY_UNLIKELY_EXECUTED,
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/* For functions that are known to be executed once (i.e. constructors, destructors
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and main function. */
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NODE_FREQUENCY_EXECUTED_ONCE,
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/* The default value. */
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NODE_FREQUENCY_NORMAL,
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/* Optimize this function hard
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(set only when profile feedback is available or via function attribute). */
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NODE_FREQUENCY_HOT
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};
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/* Ways of optimizing code. */
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enum optimization_type {
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/* Prioritize speed over size. */
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OPTIMIZE_FOR_SPEED,
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/* Only do things that are good for both size and speed. */
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OPTIMIZE_FOR_BOTH,
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/* Prioritize size over speed. */
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OPTIMIZE_FOR_SIZE
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};
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/* Possible initialization status of a variable. When requested
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by the user, this information is tracked and recorded in the DWARF
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debug information, along with the variable's location. */
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enum var_init_status
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{
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VAR_INIT_STATUS_UNKNOWN,
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VAR_INIT_STATUS_UNINITIALIZED,
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VAR_INIT_STATUS_INITIALIZED
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};
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/* Names for the different levels of -Wstrict-overflow=N. The numeric
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values here correspond to N. */
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enum warn_strict_overflow_code
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{
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/* Overflow warning that should be issued with -Wall: a questionable
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construct that is easy to avoid even when using macros. Example:
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folding (x + CONSTANT > x) to 1. */
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WARN_STRICT_OVERFLOW_ALL = 1,
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/* Overflow warning about folding a comparison to a constant because
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of undefined signed overflow, other than cases covered by
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WARN_STRICT_OVERFLOW_ALL. Example: folding (abs (x) >= 0) to 1
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(this is false when x == INT_MIN). */
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WARN_STRICT_OVERFLOW_CONDITIONAL = 2,
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/* Overflow warning about changes to comparisons other than folding
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them to a constant. Example: folding (x + 1 > 1) to (x > 0). */
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WARN_STRICT_OVERFLOW_COMPARISON = 3,
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/* Overflow warnings not covered by the above cases. Example:
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folding ((x * 10) / 5) to (x * 2). */
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WARN_STRICT_OVERFLOW_MISC = 4,
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/* Overflow warnings about reducing magnitude of constants in
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comparison. Example: folding (x + 2 > y) to (x + 1 >= y). */
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WARN_STRICT_OVERFLOW_MAGNITUDE = 5
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};
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/* The type of an alias set. Code currently assumes that variables of
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this type can take the values 0 (the alias set which aliases
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everything) and -1 (sometimes indicating that the alias set is
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unknown, sometimes indicating a memory barrier) and -2 (indicating
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that the alias set should be set to a unique value but has not been
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set yet). */
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typedef int alias_set_type;
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struct edge_def;
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typedef struct edge_def *edge;
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typedef const struct edge_def *const_edge;
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struct basic_block_def;
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typedef struct basic_block_def *basic_block;
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typedef const struct basic_block_def *const_basic_block;
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#if !defined (GENERATOR_FILE)
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# define OBSTACK_CHUNK_SIZE memory_block_pool::block_size
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# define obstack_chunk_alloc mempool_obstack_chunk_alloc
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# define obstack_chunk_free mempool_obstack_chunk_free
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#else
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# define OBSTACK_CHUNK_SIZE 0
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# define obstack_chunk_alloc xmalloc
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# define obstack_chunk_free free
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#endif
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#define gcc_obstack_init(OBSTACK) \
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obstack_specify_allocation ((OBSTACK), OBSTACK_CHUNK_SIZE, 0, \
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obstack_chunk_alloc, \
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obstack_chunk_free)
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/* enum reg_class is target specific, so it should not appear in
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target-independent code or interfaces, like the target hook declarations
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in target.h. */
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typedef int reg_class_t;
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class rtl_opt_pass;
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namespace gcc {
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class context;
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}
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typedef std::pair <tree, tree> tree_pair;
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#else
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struct _dont_use_rtx_here_;
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struct _dont_use_rtvec_here_;
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struct _dont_use_rtx_insn_here_;
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union _dont_use_tree_here_;
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#define rtx struct _dont_use_rtx_here_ *
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#define const_rtx struct _dont_use_rtx_here_ *
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#define rtvec struct _dont_use_rtvec_here *
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#define const_rtvec struct _dont_use_rtvec_here *
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#define rtx_insn struct _dont_use_rtx_insn_here_
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#define tree union _dont_use_tree_here_ *
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#define const_tree union _dont_use_tree_here_ *
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#endif
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/* Classes of functions that compiler needs to check
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whether they are present at the runtime or not. */
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enum function_class {
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function_c94,
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function_c99_misc,
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function_c99_math_complex,
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function_sincos,
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function_c11_misc
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};
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/* Enumerate visibility settings. This is deliberately ordered from most
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to least visibility. */
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enum symbol_visibility
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{
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VISIBILITY_DEFAULT,
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VISIBILITY_PROTECTED,
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VISIBILITY_HIDDEN,
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VISIBILITY_INTERNAL
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};
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/* Suppose that higher bits are target dependent. */
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#define MEMMODEL_MASK ((1<<16)-1)
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/* Legacy sync operations set this upper flag in the memory model. This allows
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targets that need to do something stronger for sync operations to
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differentiate with their target patterns and issue a more appropriate insn
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sequence. See bugzilla 65697 for background. */
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#define MEMMODEL_SYNC (1<<15)
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/* Memory model without SYNC bit for targets/operations that do not care. */
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#define MEMMODEL_BASE_MASK (MEMMODEL_SYNC-1)
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/* Memory model types for the __atomic* builtins.
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This must match the order in libstdc++-v3/include/bits/atomic_base.h. */
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enum memmodel
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{
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MEMMODEL_RELAXED = 0,
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MEMMODEL_CONSUME = 1,
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MEMMODEL_ACQUIRE = 2,
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MEMMODEL_RELEASE = 3,
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MEMMODEL_ACQ_REL = 4,
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MEMMODEL_SEQ_CST = 5,
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MEMMODEL_LAST = 6,
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MEMMODEL_SYNC_ACQUIRE = MEMMODEL_ACQUIRE | MEMMODEL_SYNC,
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MEMMODEL_SYNC_RELEASE = MEMMODEL_RELEASE | MEMMODEL_SYNC,
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MEMMODEL_SYNC_SEQ_CST = MEMMODEL_SEQ_CST | MEMMODEL_SYNC
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};
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/* Support for user-provided GGC and PCH markers. The first parameter
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is a pointer to a pointer, the second a cookie. */
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typedef void (*gt_pointer_operator) (void *, void *);
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#if !defined (HAVE_UCHAR)
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typedef unsigned char uchar;
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#endif
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/* C++11 adds the ability to add "override" after an implementation of a
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virtual function in a subclass, to:
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(A) document that this is an override of a virtual function
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(B) allow the compiler to issue a warning if it isn't (e.g. a mismatch
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of the type signature).
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Similarly, it allows us to add a "final" to indicate that no subclass
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may subsequently override the vfunc.
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Provide OVERRIDE and FINAL as macros, allowing us to get these benefits
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when compiling with C++11 support, but without requiring C++11.
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For gcc, use "-std=c++11" to enable C++11 support; gcc 6 onwards enables
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this by default (actually GNU++14). */
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#if __cplusplus >= 201103
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/* C++11 claims to be available: use it: */
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#define OVERRIDE override
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#define FINAL final
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#else
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/* No C++11 support; leave the macros empty: */
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#define OVERRIDE
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#define FINAL
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#endif
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/* Most host source files will require the following headers. */
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#if !defined (GENERATOR_FILE) && !defined (USED_FOR_TARGET)
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#include "machmode.h"
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#include "signop.h"
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#include "wide-int.h"
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#include "double-int.h"
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#include "real.h"
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#include "fixed-value.h"
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#include "hash-table.h"
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#include "hash-set.h"
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#include "input.h"
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#include "is-a.h"
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#include "memory-block.h"
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#endif /* GENERATOR_FILE && !USED_FOR_TARGET */
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#endif /* coretypes.h */
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