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[AArch64] [-mtune cleanup 2/5] Tune for Cortex-A53 by default.

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gcc/
	* config/aarch64/aarch64-arches.def (armv8-a): Tune for cortex-a53.
	* config/aarch64/aarch64.md: Do not include aarch64-generic.md.
	* config/aarch64/aarch64.c (aarch64_tune): Initialize to cortexa53.
	(all_cores): Use cortexa53 when tuning for "generic".
	(aarch64_override_options): Fix comment.
	* config/aarch64/aarch64.h (TARGET_CPU_DEFAULT): Set to cortexa53.
	* config/aarch64/aarch64-generic.md: Delete.

From-SVN: r204782
This commit is contained in:
James Greenhalgh 2013-11-14 09:56:30 +00:00 committed by James Greenhalgh
parent 00ed7ad477
commit 02fdbd5beb
6 changed files with 16 additions and 47 deletions
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10
gcc/ChangeLog
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@ -1,3 +1,13 @@
2013-11-14 James Greenhalgh <james.greenhalgh@arm.com>
* config/aarch64/aarch64-arches.def (armv8-a): Tune for cortex-a53.
* config/aarch64/aarch64.md: Do not include aarch64-generic.md.
* config/aarch64/aarch64.c (aarch64_tune): Initialize to cortexa53.
(all_cores): Use cortexa53 when tuning for "generic".
(aarch64_override_options): Fix comment.
* config/aarch64/aarch64.h (TARGET_CPU_DEFAULT): Set to cortexa53.
* config/aarch64/aarch64-generic.md: Delete.
2013-11-14 James Greenhalgh <james.greenhalgh@arm.com>
* config/aarch64/aarch64.c (all_architectures): Remove "generic".

2
gcc/config/aarch64/aarch64-arches.def
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@ -26,4 +26,4 @@
this architecture. ARCH is the architecture revision. FLAGS are
the flags implied by the architecture. */
AARCH64_ARCH("armv8-a", generic, 8, AARCH64_FL_FOR_ARCH8)
AARCH64_ARCH("armv8-a", cortexa53, 8, AARCH64_FL_FOR_ARCH8)

40
gcc/config/aarch64/aarch64-generic.md
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@ -1,40 +0,0 @@
;; Machine description for AArch64 architecture.
;; Copyright (C) 2009-2013 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/>.
;; Generic scheduler
(define_automaton "aarch64")
(define_cpu_unit "core" "aarch64")
(define_attr "is_load" "yes,no"
(if_then_else (eq_attr "v8type" "fpsimd_load,fpsimd_load2,load1,load2")
(const_string "yes")
(const_string "no")))
(define_insn_reservation "load" 2
(and (eq_attr "generic_sched" "yes")
(eq_attr "is_load" "yes"))
"core")
(define_insn_reservation "nonload" 1
(and (eq_attr "generic_sched" "yes")
(eq_attr "is_load" "no"))
"core")

6
gcc/config/aarch64/aarch64.c
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@ -128,7 +128,7 @@ static bool aarch64_vectorize_vec_perm_const_ok (enum machine_mode vmode,
const unsigned char *sel);
/* The processor for which instructions should be scheduled. */
enum aarch64_processor aarch64_tune = generic;
enum aarch64_processor aarch64_tune = cortexa53;
/* The current tuning set. */
const struct tune_params *aarch64_tune_params;
@ -226,7 +226,7 @@ static const struct processor all_cores[] =
{NAME, IDENT, #ARCH, FLAGS | AARCH64_FL_FOR_ARCH##ARCH, &COSTS##_tunings},
#include "aarch64-cores.def"
#undef AARCH64_CORE
{"generic", generic, "8", AARCH64_FL_FPSIMD | AARCH64_FL_FOR_ARCH8, &generic_tunings},
{"generic", cortexa53, "8", AARCH64_FL_FPSIMD | AARCH64_FL_FOR_ARCH8, &generic_tunings},
{NULL, aarch64_none, NULL, 0, NULL}
};
@ -5170,7 +5170,7 @@ aarch64_override_options (void)
/* If the user did not specify a processor, choose the default
one for them. This will be the CPU set during configuration using
--with-cpu, otherwise it is "generic". */
--with-cpu, otherwise it is "coretex-a53". */
if (!selected_cpu)
{
selected_cpu = &all_cores[TARGET_CPU_DEFAULT & 0x3f];

4
gcc/config/aarch64/aarch64.h
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@ -468,10 +468,10 @@ enum target_cpus
TARGET_CPU_generic
};
/* If there is no CPU defined at configure, use "generic" as default. */
/* If there is no CPU defined at configure, use "cortex-a53" as default. */
#ifndef TARGET_CPU_DEFAULT
#define TARGET_CPU_DEFAULT \
(TARGET_CPU_generic | (AARCH64_CPU_DEFAULT_FLAGS << 6))
(TARGET_CPU_cortexa53 | (AARCH64_CPU_DEFAULT_FLAGS << 6))
#endif
/* The processor for which instructions should be scheduled. */

1
gcc/config/aarch64/aarch64.md
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@ -317,7 +317,6 @@
(const_string "yes"))))
;; Scheduling
(include "aarch64-generic.md")
(include "large.md")
(include "small.md")
(include "../arm/cortex-a53.md")