gcc/config/aarch64/aarch64-isa-modes.def

   1 /* Copyright (C) 2023-2025 Free Software Foundation, Inc.
   2
   3    This file is part of GCC.
   4
   5    GCC is free software; you can redistribute it and/or modify it
   6    under the terms of the GNU General Public License as published
   7    by the Free Software Foundation; either version 3, or (at your
   8    option) any later version.
   9
  10    GCC is distributed in the hope that it will be useful, but WITHOUT
  11    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  13    License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with GCC; see the file COPYING3.  If not see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 /* This file defines a set of "ISA modes"; in other words, it defines
  20    various bits of runtime state that control the set of available
  21    instructions or that affect the semantics of instructions in some way.
  22
  23    Before using #include to read this file, define a macro:
  24
  25       DEF_AARCH64_ISA_MODE(NAME)
  26
  27    where NAME is the name of the mode.  */
  28
  29 /* Indicates that PSTATE.SM is known to be 1 or 0 respectively.  These
  30    modes are mutually exclusive.  If neither mode is active then the state
  31    of PSTATE.SM is not known at compile time.  */
  32 DEF_AARCH64_ISA_MODE(SM_ON)
  33 DEF_AARCH64_ISA_MODE(SM_OFF)
  34
  35 /* Indicates that PSTATE.ZA is known to be 1.  The converse is that
  36    PSTATE.ZA might be 0 or 1, depending on whether there is an uncommitted
  37    lazy save.  */
  38 DEF_AARCH64_ISA_MODE(ZA_ON)
  39
  40 #undef DEF_AARCH64_ISA_MODE