99 lines
3.5 KiB
Modula-2
99 lines
3.5 KiB
Modula-2
|
/* Insn note definitions.
|
||
|
|
Copyright (C) 2004-2023 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
This file is part of GCC.
|
||
|
|
|
||
|
|
GCC 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.
|
||
|
|
|
||
|
|
GCC 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 GCC; see the file COPYING3. If not see
|
||
|
|
<http://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
/* This file defines all the codes that may appear in the
|
||
|
|
NOTE_LINE_NUMBER field of a NOTE insn for kinds of notes that are
|
||
|
|
not line numbers. Source files define DEF_INSN_NOTE appropriately
|
||
|
|
before including this file.
|
||
|
|
|
||
|
|
We are slowly removing the concept of insn-chain notes from the
|
||
|
|
compiler. Adding new codes to this file is STRONGLY DISCOURAGED.
|
||
|
|
If you think you need one, look for other ways to express what you
|
||
|
|
mean, such as register notes or bits in the basic-block structure. */
|
||
|
|
|
||
|
|
/* Shorthand. */
|
||
|
|
#define INSN_NOTE(NAME) DEF_INSN_NOTE (NOTE_INSN_##NAME)
|
||
|
|
|
||
|
|
/* This note is used to get rid of an insn when it isn't safe to patch
|
||
|
|
the insn out of the chain. */
|
||
|
|
INSN_NOTE (DELETED)
|
||
|
|
|
||
|
|
/* Generated in place of user-declared labels when they are deleted. */
|
||
|
|
INSN_NOTE (DELETED_LABEL)
|
||
|
|
/* Similarly, but for labels that have been present in debug stmts
|
||
|
|
earlier and thus will only appear with -g. These must use different
|
||
|
|
label namespace. */
|
||
|
|
INSN_NOTE (DELETED_DEBUG_LABEL)
|
||
|
|
|
||
|
|
/* These are used to mark the beginning and end of a lexical block.
|
||
|
|
See NOTE_BLOCK and reorder_blocks. */
|
||
|
|
INSN_NOTE (BLOCK_BEG)
|
||
|
|
INSN_NOTE (BLOCK_END)
|
||
|
|
|
||
|
|
/* This note indicates the start of the real body of the function,
|
||
|
|
i.e. the point just after all of the parms have been moved into
|
||
|
|
their homes, etc. */
|
||
|
|
INSN_NOTE (FUNCTION_BEG)
|
||
|
|
|
||
|
|
/* This marks the point immediately after the last prologue insn. */
|
||
|
|
INSN_NOTE (PROLOGUE_END)
|
||
|
|
|
||
|
|
/* This marks the point immediately prior to the first epilogue insn. */
|
||
|
|
INSN_NOTE (EPILOGUE_BEG)
|
||
|
|
|
||
|
|
/* These note where exception handling regions begin and end.
|
||
|
|
Uses NOTE_EH_HANDLER to identify the region in question. */
|
||
|
|
INSN_NOTE (EH_REGION_BEG)
|
||
|
|
INSN_NOTE (EH_REGION_END)
|
||
|
|
|
||
|
|
/* The location of a variable. */
|
||
|
|
INSN_NOTE (VAR_LOCATION)
|
||
|
|
|
||
|
|
/* The beginning of a statement. */
|
||
|
|
INSN_NOTE (BEGIN_STMT)
|
||
|
|
|
||
|
|
/* The entry point for an inlined function. Its NOTE_BLOCK references
|
||
|
|
the lexical block whose abstract origin is the inlined function. */
|
||
|
|
INSN_NOTE (INLINE_ENTRY)
|
||
|
|
|
||
|
|
/* Record the struct for the following basic block. Uses
|
||
|
|
NOTE_BASIC_BLOCK. FIXME: Redundant with the basic block pointer
|
||
|
|
now included in every insn. NOTE: If there's no CFG anymore, in other words,
|
||
|
|
if BLOCK_FOR_INSN () == NULL, NOTE_BASIC_BLOCK cannot be considered reliable
|
||
|
|
anymore. */
|
||
|
|
INSN_NOTE (BASIC_BLOCK)
|
||
|
|
|
||
|
|
/* Mark the inflection point in the instruction stream where we switch
|
||
|
|
between hot and cold text sections. */
|
||
|
|
INSN_NOTE (SWITCH_TEXT_SECTIONS)
|
||
|
|
|
||
|
|
/* When emitting dwarf2 frame information, contains a directive that
|
||
|
|
should be emitted. */
|
||
|
|
INSN_NOTE (CFI)
|
||
|
|
|
||
|
|
/* When emitting dwarf2 frame information, contains the number of a debug
|
||
|
|
label that should be emitted. */
|
||
|
|
INSN_NOTE (CFI_LABEL)
|
||
|
|
|
||
|
|
/* This note indicates that the function context must be updated if
|
||
|
|
the Setjmp/Longjmp exception mechanism is used. */
|
||
|
|
INSN_NOTE (UPDATE_SJLJ_CONTEXT)
|
||
|
|
|
||
|
|
#undef INSN_NOTE
|