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[aarch64] Add CPU support for Ampere Computing's eMAG.

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2018-11-23  Christoph Muellner <christoph.muellner@theobroma-system.com>

	* config/aarch64/aarch64-cores.def: Define emag.
	* config/aarch64/aarch64-tune.md: Regenerated with emag.
	* config/aarch64/aarch64.c (emag_tunings): New struct.
	* doc/invoke.texi: Document mtune value.

From-SVN: r266415
This commit is contained in:
Christoph Muellner 2018-11-23 17:52:19 +00:00 committed by Philipp Tomsich
parent cf28c77eb1
commit e02669dbdf
5 changed files with 39 additions and 2 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2018-11-23 Christoph Muellner <christoph.muellner@theobroma-systems.com>
* config/aarch64/aarch64-cores.def: Define emag.
* config/aarch64/aarch64-tune.md: Regenerated with emag.
* config/aarch64/aarch64.c (emag_tunings): New struct.
* doc/invoke.texi: Document mtune value.
2018-11-23 Christoph Muellner <christoph.muellner@theobroma-systems.com>
Philipp Tomsich <philipp.tomsich@theobroma-systems.com>

5
gcc/config/aarch64/aarch64-cores.def
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@ -61,6 +61,11 @@ AARCH64_CORE("thunderxt88", thunderxt88, thunderx, 8A, AARCH64_FL_FOR_ARCH
AARCH64_CORE("thunderxt81", thunderxt81, thunderx, 8A, AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC | AARCH64_FL_CRYPTO, thunderx, 0x43, 0x0a2, -1)
AARCH64_CORE("thunderxt83", thunderxt83, thunderx, 8A, AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC | AARCH64_FL_CRYPTO, thunderx, 0x43, 0x0a3, -1)
/* Ampere Computing cores. */
/* Do not swap around "emag" and "xgene1",
this order is required to handle variant correctly. */
AARCH64_CORE("emag", emag, xgene1, 8A, AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC | AARCH64_FL_CRYPTO, emag, 0x50, 0x000, 3)
/* APM ('P') cores. */
AARCH64_CORE("xgene1", xgene1, xgene1, 8A, AARCH64_FL_FOR_ARCH8, xgene1, 0x50, 0x000, -1)

2
gcc/config/aarch64/aarch64-tune.md
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@ -1,5 +1,5 @@
;; -*- buffer-read-only: t -*-
;; Generated automatically by gentune.sh from aarch64-cores.def
(define_attr "tune"
"cortexa35,cortexa53,cortexa57,cortexa72,cortexa73,thunderx,thunderxt88p1,thunderxt88,thunderxt81,thunderxt83,xgene1,falkor,qdf24xx,exynosm1,phecda,thunderx2t99p1,vulcan,thunderx2t99,cortexa55,cortexa75,cortexa76,ares,tsv110,saphira,cortexa57cortexa53,cortexa72cortexa53,cortexa73cortexa35,cortexa73cortexa53,cortexa75cortexa55,cortexa76cortexa55"
"cortexa35,cortexa53,cortexa57,cortexa72,cortexa73,thunderx,thunderxt88p1,thunderxt88,thunderxt81,thunderxt83,emag,xgene1,falkor,qdf24xx,exynosm1,phecda,thunderx2t99p1,vulcan,thunderx2t99,cortexa55,cortexa75,cortexa76,ares,tsv110,saphira,cortexa57cortexa53,cortexa72cortexa53,cortexa73cortexa35,cortexa73cortexa53,cortexa75cortexa55,cortexa76cortexa55"
(const (symbol_ref "((enum attr_tune) aarch64_tune)")))

25
gcc/config/aarch64/aarch64.c
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@ -957,6 +957,31 @@ static const struct tune_params xgene1_tunings =
&xgene1_prefetch_tune
};
static const struct tune_params emag_tunings =
{
&xgene1_extra_costs,
&xgene1_addrcost_table,
&xgene1_regmove_cost,
&xgene1_vector_cost,
&generic_branch_cost,
&xgene1_approx_modes,
6, /* memmov_cost */
4, /* issue_rate */
AARCH64_FUSE_NOTHING, /* fusible_ops */
"16", /* function_align. */
"16", /* jump_align. */
"16", /* loop_align. */
2, /* int_reassoc_width. */
4, /* fp_reassoc_width. */
1, /* vec_reassoc_width. */
2, /* min_div_recip_mul_sf. */
2, /* min_div_recip_mul_df. */
17, /* max_case_values. */
tune_params::AUTOPREFETCHER_OFF, /* autoprefetcher_model. */
(AARCH64_EXTRA_TUNE_NO_LDP_STP_QREGS), /* tune_flags. */
&xgene1_prefetch_tune
};
static const struct tune_params qdf24xx_tunings =
{
&qdf24xx_extra_costs,

2
gcc/doc/invoke.texi
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@ -15565,7 +15565,7 @@ Specify the name of the target processor for which GCC should tune the
performance of the code. Permissible values for this option are:
@samp{generic}, @samp{cortex-a35}, @samp{cortex-a53}, @samp{cortex-a55},
@samp{cortex-a57}, @samp{cortex-a72}, @samp{cortex-a73}, @samp{cortex-a75},
@samp{cortex-a76}, @samp{ares}, @samp{exynos-m1}, @samp{falkor},
@samp{cortex-a76}, @samp{ares}, @samp{exynos-m1}, @samp{emag}, @samp{falkor},
@samp{qdf24xx}, @samp{saphira}, @samp{phecda}, @samp{xgene1}, @samp{vulcan},
@samp{thunderx}, @samp{thunderxt88}, @samp{thunderxt88p1}, @samp{thunderxt81},
@samp{tsv110}, @samp{thunderxt83}, @samp{thunderx2t99},