| /* Insn note definitions. |
| Copyright (C) 2004-2018 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 |
