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| author | Kyrylo Tkachov <kyrylo.tkachov@arm.com> | 2019-01-17 10:08:55 +0000 |
|---|---|---|
| committer | Kyrylo Tkachov <ktkachov@gcc.gnu.org> | 2019-01-17 10:08:55 +0000 |
| commit | fc881de2825e37142436efcfd7537cc467f3430c (patch) | |
| tree | 3920f34b306599b81279e0b11bbd935028536246 | |
| parent | f6a02135809ecd378be0aea256381af0fc79935c (diff) | |
| download | gcc-fc881de2825e37142436efcfd7537cc467f3430c.zip gcc-fc881de2825e37142436efcfd7537cc467f3430c.tar.gz gcc-fc881de2825e37142436efcfd7537cc467f3430c.tar.bz2 | |
[AArch64] Initial -mcpu=ares tuning
This patch adds a tuning struct for the Arm Ares CPU and uses it for -m{cpu,tune}=ares.
The tunings are an initial attempt and may be improved upon in the future, but they serve
as a decent starting point for GCC 9.
With this I see a 1.3% improvement on SPEC2006 int and 0.3% on SPEC2006 fp with -mcpu=ares.
On SPEC2017 I see a 0.6% improvement in intrate and changes in the noise for fprate.
* config/aarch64/aarch64.c (ares_tunings): Define.
* config/aarch64/aarch64-cores.def (ares): Use the above.
From-SVN: r268015
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/aarch64/aarch64-cores.def | 2 | ||||
| -rw-r--r-- | gcc/config/aarch64/aarch64.c | 26 |
3 files changed, 32 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 7eeb89a..59f3974 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2019-01-17 Kyrylo Tkachov <kyrylo.tkachov@arm.com> + + * config/aarch64/aarch64.c (ares_tunings): Define. + * config/aarch64/aarch64-cores.def (ares): Use the above. + 2019-01-17 Wei Xiao <wei3.xiao@intel.com> PR target/88794 diff --git a/gcc/config/aarch64/aarch64-cores.def b/gcc/config/aarch64/aarch64-cores.def index 70b0766..7c4bd52 100644 --- a/gcc/config/aarch64/aarch64-cores.def +++ b/gcc/config/aarch64/aarch64-cores.def @@ -100,7 +100,7 @@ AARCH64_CORE("thunderx2t99", thunderx2t99, thunderx2t99, 8_1A, AARCH64_FL_FOR AARCH64_CORE("cortex-a55", cortexa55, cortexa53, 8_2A, AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_F16 | AARCH64_FL_RCPC | AARCH64_FL_DOTPROD, cortexa53, 0x41, 0xd05, -1) AARCH64_CORE("cortex-a75", cortexa75, cortexa57, 8_2A, AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_F16 | AARCH64_FL_RCPC | AARCH64_FL_DOTPROD, cortexa73, 0x41, 0xd0a, -1) AARCH64_CORE("cortex-a76", cortexa76, cortexa57, 8_2A, AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_F16 | AARCH64_FL_RCPC | AARCH64_FL_DOTPROD, cortexa72, 0x41, 0xd0b, -1) -AARCH64_CORE("ares", ares, cortexa57, 8_2A, AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_F16 | AARCH64_FL_RCPC | AARCH64_FL_DOTPROD | AARCH64_FL_PROFILE, cortexa72, 0x41, 0xd0c, -1) +AARCH64_CORE("ares", ares, cortexa57, 8_2A, AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_F16 | AARCH64_FL_RCPC | AARCH64_FL_DOTPROD | AARCH64_FL_PROFILE, ares, 0x41, 0xd0c, -1) /* HiSilicon ('H') cores. */ AARCH64_CORE("tsv110", tsv110, cortexa57, 8_2A, AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_CRYPTO | AARCH64_FL_F16 | AARCH64_FL_AES | AARCH64_FL_SHA2, tsv110, 0x48, 0xd01, -1) diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index da48c09..3c1818a 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -1083,6 +1083,32 @@ static const struct tune_params thunderx2t99_tunings = &thunderx2t99_prefetch_tune }; +static const struct tune_params ares_tunings = +{ + &cortexa57_extra_costs, + &generic_addrcost_table, + &generic_regmove_cost, + &cortexa57_vector_cost, + &generic_branch_cost, + &generic_approx_modes, + SVE_NOT_IMPLEMENTED, /* sve_width */ + 4, /* memmov_cost */ + 3, /* issue_rate */ + AARCH64_FUSE_AES_AESMC, /* fusible_ops */ + "32:16", /* function_align. */ + "32:16", /* jump_align. */ + "32:16", /* loop_align. */ + 2, /* int_reassoc_width. */ + 4, /* fp_reassoc_width. */ + 2, /* vec_reassoc_width. */ + 2, /* min_div_recip_mul_sf. */ + 2, /* min_div_recip_mul_df. */ + 0, /* max_case_values. */ + tune_params::AUTOPREFETCHER_WEAK, /* autoprefetcher_model. */ + (AARCH64_EXTRA_TUNE_NONE), /* tune_flags. */ + &generic_prefetch_tune +}; + /* Support for fine-grained override of the tuning structures. */ struct aarch64_tuning_override_function { |