Here is the updated patch based on the new infrastructure which is now included.
OK? Bootstrapped and tested on aarch64-linux-gnu with no regressions
and tested again on SPEC CPU 2006 on THunderX T88 with the speed up
mentioned before.
Thanks,
Andrew Pinski
ChangeLog:
* config/aarch64/aarch64-cores.def (thunderxt88p1): Use thunderxt88 tunings.
(thunderxt88): Likewise.
* config/aarch64/aarch64.c (thunderxt88_prefetch_tune): New variable.
(thunderx_prefetch_tune): New variable.
(thunderx2t99_prefetch_tune): Update for the correct values.
(thunderxt88_tunings): New variable.
(thunderx_tunings): Use thunderx_prefetch_tune instead of generic_prefetch_tune.
(thunderx2t99_tunings): Use AUTOPREFETCHER_WEAK.
Index: gcc/config/aarch64/aarch64-cores.def
===================================================================
--- gcc/config/aarch64/aarch64-cores.def (revision 249422)
+++ gcc/config/aarch64/aarch64-cores.def (working copy)
@@ -56,8 +56,8 @@ AARCH64_CORE("cortex-a73", cortexa73, c
AARCH64_CORE("thunderx", thunderx, thunderx, 8A,
AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC | AARCH64_FL_CRYPTO, thunderx, 0x43,
0x0a0, -1)
/* Do not swap around "thunderxt88p1" and "thunderxt88",
this order is required to handle variant correctly. */
-AARCH64_CORE("thunderxt88p1", thunderxt88p1, thunderx, 8A,
AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC | AARCH64_FL_CRYPTO, thunderx,
0x43, 0x0a1, 0)
-AARCH64_CORE("thunderxt88", thunderxt88, thunderx, 8A,
AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC | AARCH64_FL_CRYPTO, thunderx, 0x43,
0x0a1, -1)
+AARCH64_CORE("thunderxt88p1", thunderxt88p1, thunderx, 8A,
AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC | AARCH64_FL_CRYPTO, thunderxt88,
0x43, 0x0a1, 0)
+AARCH64_CORE("thunderxt88", thunderxt88, thunderx, 8A,
AARCH64_FL_FOR_ARCH8 | AARCH64_FL_CRC | AARCH64_FL_CRYPTO, thunderxt88, 0x43,
0x0a1, -1)
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)
Index: gcc/config/aarch64/aarch64.c
===================================================================
--- gcc/config/aarch64/aarch64.c (revision 249422)
+++ gcc/config/aarch64/aarch64.c (working copy)
@@ -554,12 +554,30 @@ static const cpu_prefetch_tune qdf24xx_p
3 /* default_opt_level */
};
+static const cpu_prefetch_tune thunderxt88_prefetch_tune =
+{
+ 8, /* num_slots */
+ 32, /* l1_cache_size */
+ 128, /* l1_cache_line_size */
+ 16*1024, /* l2_cache_size */
+ 3 /* default_opt_level */
+};
+
+static const cpu_prefetch_tune thunderx_prefetch_tune =
+{
+ 8, /* num_slots */
+ 32, /* l1_cache_size */
+ 128, /* l1_cache_line_size */
+ -1, /* l2_cache_size */
+ -1 /* default_opt_level */
+};
+
static const cpu_prefetch_tune thunderx2t99_prefetch_tune =
{
- 0, /* num_slots */
- -1, /* l1_cache_size */
+ 8, /* num_slots */
+ 32, /* l1_cache_size */
64, /* l1_cache_line_size */
- -1, /* l2_cache_size */
+ 256, /* l2_cache_size */
-1 /* default_opt_level */
};
@@ -745,6 +763,31 @@ static const struct tune_params exynosm1
&exynosm1_prefetch_tune
};
+static const struct tune_params thunderxt88_tunings =
+{
+ &thunderx_extra_costs,
+ &generic_addrcost_table,
+ &thunderx_regmove_cost,
+ &thunderx_vector_cost,
+ &generic_branch_cost,
+ &generic_approx_modes,
+ 6, /* memmov_cost */
+ 2, /* issue_rate */
+ AARCH64_FUSE_CMP_BRANCH, /* fusible_ops */
+ 8, /* function_align. */
+ 8, /* jump_align. */
+ 8, /* 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. */
+ 0, /* max_case_values. */
+ tune_params::AUTOPREFETCHER_OFF, /* autoprefetcher_model. */
+ (AARCH64_EXTRA_TUNE_SLOW_UNALIGNED_LDPW), /* tune_flags. */
+ &thunderxt88_prefetch_tune
+};
+
static const struct tune_params thunderx_tunings =
{
&thunderx_extra_costs,
@@ -767,7 +810,7 @@ static const struct tune_params thunderx
0, /* max_case_values. */
tune_params::AUTOPREFETCHER_OFF, /* autoprefetcher_model. */
(AARCH64_EXTRA_TUNE_SLOW_UNALIGNED_LDPW), /* tune_flags. */
- &generic_prefetch_tune
+ &thunderx_prefetch_tune
};
static const struct tune_params xgene1_tunings =
@@ -841,7 +884,7 @@ static const struct tune_params thunderx
2, /* min_div_recip_mul_sf. */
2, /* min_div_recip_mul_df. */
0, /* max_case_values. */
- tune_params::AUTOPREFETCHER_OFF, /* autoprefetcher_model. */
+ tune_params::AUTOPREFETCHER_WEAK, /* autoprefetcher_model. */
(AARCH64_EXTRA_TUNE_NONE), /* tune_flags. */
&thunderx2t99_prefetch_tune
};
