gcc/config/aarch64/aarch64-tuning-flags.def

/* Copyright (C) 2015-2021 Free Software Foundation, Inc.
   Contributed by ARM Ltd.

   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/>.  */

/* Additional control over certain tuning parameters.  Before including
   this file, define a macro:

     AARCH64_EXTRA_TUNING_OPTION (name, internal_name)

   Where:

     NAME is a string giving a friendly name for the tuning flag.
     INTERNAL_NAME gives the internal name suitable for appending to
     AARCH64_TUNE_ to give an enum name. */

AARCH64_EXTRA_TUNING_OPTION ("rename_fma_regs", RENAME_FMA_REGS)

/* Don't create non-8 byte aligned load/store pair.  That is if the
two load/stores are not at least 8 byte aligned don't create load/store
pairs.   */
AARCH64_EXTRA_TUNING_OPTION ("slow_unaligned_ldpw", SLOW_UNALIGNED_LDPW)

/* Some of the optional shift to some arthematic instructions are
   considered cheap.  Logical shift left <=4 with or without a
   zero extend are considered cheap.  Sign extend; non logical shift left
   are not considered cheap.  */
AARCH64_EXTRA_TUNING_OPTION ("cheap_shift_extend", CHEAP_SHIFT_EXTEND)

/* Disallow load/store pair instructions on Q-registers.  */
AARCH64_EXTRA_TUNING_OPTION ("no_ldp_stp_qregs", NO_LDP_STP_QREGS)

AARCH64_EXTRA_TUNING_OPTION ("rename_load_regs", RENAME_LOAD_REGS)

AARCH64_EXTRA_TUNING_OPTION ("cse_sve_vl_constants", CSE_SVE_VL_CONSTANTS)

AARCH64_EXTRA_TUNING_OPTION ("use_new_vector_costs", USE_NEW_VECTOR_COSTS)

AARCH64_EXTRA_TUNING_OPTION ("matched_vector_throughput", MATCHED_VECTOR_THROUGHPUT)

#undef AARCH64_EXTRA_TUNING_OPTION