This patch adds the cost model for Neoverse N1, based on the information from
the "Arm Neoverse N1 Software Optimization Guide”.
--
Evandro Menezes
================================================================================
gcc/ChangeLog:
* config/aarch64/aarch64-cores.def: Use the Neoverse N1 cost model.
* config/aarch64/aarch64.cc
(cortexa76_tunings): Rename variable.
(neoversen1_addrcost_table): New variable.
(neoversen1_vector_cost): Likewise.
(neoversen1_regmove_cost): Likewise.
(neoversen1_advsimd_vector_cost): Likewise.
(neoversen1_scalar_issue_info): Likewise.
(neoversen1_advsimd_issue_info): Likewise.
(neoversen1_vec_issue_info): Likewise.
(neoversen1_vector_cost): Likewise.
(neoversen1_tunings): Likewise.
* config/arm/aarch-cost-tables.h
(neoversen1_extra_costs): New variable.
Signed-off-by: Evandro Menezes <evan...@gcc.gnu.org>
---
gcc/config/aarch64/aarch64-cores.def | 20 ++--
gcc/config/aarch64/aarch64.cc | 155 ++++++++++++++++++++++++---
gcc/config/arm/aarch-cost-tables.h | 107 ++++++++++++++++++
3 files changed, 259 insertions(+), 23 deletions(-)
diff --git a/gcc/config/aarch64/aarch64-cores.def
b/gcc/config/aarch64/aarch64-cores.def
index 2ec88c98400..e352e4077b1 100644
--- a/gcc/config/aarch64/aarch64-cores.def
+++ b/gcc/config/aarch64/aarch64-cores.def
@@ -105,17 +105,17 @@ AARCH64_CORE("thunderx2t99", thunderx2t99,
thunderx2t99, V8_1A, (CRYPTO), thu
/* ARM ('A') cores. */
AARCH64_CORE("cortex-a55", cortexa55, cortexa53, V8_2A, (F16, RCPC, DOTPROD),
cortexa53, 0x41, 0xd05, -1)
AARCH64_CORE("cortex-a75", cortexa75, cortexa57, V8_2A, (F16, RCPC, DOTPROD),
cortexa73, 0x41, 0xd0a, -1)
-AARCH64_CORE("cortex-a76", cortexa76, cortexa57, V8_2A, (F16, RCPC,
DOTPROD), neoversen1, 0x41, 0xd0b, -1)
-AARCH64_CORE("cortex-a76ae", cortexa76ae, cortexa57, V8_2A, (F16, RCPC,
DOTPROD, SSBS), neoversen1, 0x41, 0xd0e, -1)
-AARCH64_CORE("cortex-a77", cortexa77, cortexa57, V8_2A, (F16, RCPC, DOTPROD,
SSBS), neoversen1, 0x41, 0xd0d, -1)
-AARCH64_CORE("cortex-a78", cortexa78, cortexa57, V8_2A, (F16, RCPC, DOTPROD,
SSBS, PROFILE), neoversen1, 0x41, 0xd41, -1)
-AARCH64_CORE("cortex-a78ae", cortexa78ae, cortexa57, V8_2A, (F16, RCPC,
DOTPROD, SSBS, PROFILE), neoversen1, 0x41, 0xd42, -1)
-AARCH64_CORE("cortex-a78c", cortexa78c, cortexa57, V8_2A, (F16, RCPC,
DOTPROD, SSBS, PROFILE, FLAGM, PAUTH), neoversen1, 0x41, 0xd4b, -1)
+AARCH64_CORE("cortex-a76", cortexa76, cortexa57, V8_2A, (F16, RCPC,
DOTPROD), cortexa76, 0x41, 0xd0b, -1)
+AARCH64_CORE("cortex-a76ae", cortexa76ae, cortexa57, V8_2A, (F16, RCPC,
DOTPROD, SSBS), cortexa76, 0x41, 0xd0e, -1)
+AARCH64_CORE("cortex-a77", cortexa77, cortexa57, V8_2A, (F16, RCPC, DOTPROD,
SSBS), cortexa76, 0x41, 0xd0d, -1)
+AARCH64_CORE("cortex-a78", cortexa78, cortexa57, V8_2A, (F16, RCPC, DOTPROD,
SSBS, PROFILE), cortexa76, 0x41, 0xd41, -1)
+AARCH64_CORE("cortex-a78ae", cortexa78ae, cortexa57, V8_2A, (F16, RCPC,
DOTPROD, SSBS, PROFILE), cortexa76, 0x41, 0xd42, -1)
+AARCH64_CORE("cortex-a78c", cortexa78c, cortexa57, V8_2A, (F16, RCPC,
DOTPROD, SSBS, PROFILE, FLAGM, PAUTH), cortexa76, 0x41, 0xd4b, -1)
AARCH64_CORE("cortex-a65", cortexa65, cortexa53, V8_2A, (F16, RCPC, DOTPROD,
SSBS), cortexa73, 0x41, 0xd06, -1)
AARCH64_CORE("cortex-a65ae", cortexa65ae, cortexa53, V8_2A, (F16, RCPC,
DOTPROD, SSBS), cortexa73, 0x41, 0xd43, -1)
-AARCH64_CORE("cortex-x1", cortexx1, cortexa57, V8_2A, (F16, RCPC, DOTPROD,
SSBS, PROFILE), neoversen1, 0x41, 0xd44, -1)
-AARCH64_CORE("cortex-x1c", cortexx1c, cortexa57, V8_2A, (F16, RCPC, DOTPROD,
SSBS, PROFILE, PAUTH), neoversen1, 0x41, 0xd4c, -1)
-AARCH64_CORE("ares", ares, cortexa57, V8_2A, (F16, RCPC, DOTPROD, PROFILE),
neoversen1, 0x41, 0xd0c, -1)
+AARCH64_CORE("cortex-x1", cortexx1, cortexa57, V8_2A, (F16, RCPC, DOTPROD,
SSBS, PROFILE), cortexa76, 0x41, 0xd44, -1)
+AARCH64_CORE("cortex-x1c", cortexx1c, cortexa57, V8_2A, (F16, RCPC, DOTPROD,
SSBS, PROFILE, PAUTH), cortexa76, 0x41, 0xd4c, -1)
+AARCH64_CORE("ares", ares, cortexa57, V8_2A, (F16, RCPC, DOTPROD, PROFILE),
cortexa76, 0x41, 0xd0c, -1)
AARCH64_CORE("neoverse-n1", neoversen1, cortexa57, V8_2A, (F16, RCPC,
DOTPROD, PROFILE), neoversen1, 0x41, 0xd0c, -1)
AARCH64_CORE("neoverse-e1", neoversee1, cortexa53, V8_2A, (F16, RCPC,
DOTPROD, SSBS), cortexa73, 0x41, 0xd4a, -1)
@@ -160,7 +160,7 @@ AARCH64_CORE("cortex-a73.cortex-a53", cortexa73cortexa53,
cortexa53, V8A, (CRC
/* ARM DynamIQ big.LITTLE configurations. */
AARCH64_CORE("cortex-a75.cortex-a55", cortexa75cortexa55, cortexa53, V8_2A,
(F16, RCPC, DOTPROD), cortexa73, 0x41, AARCH64_BIG_LITTLE (0xd0a, 0xd05), -1)
-AARCH64_CORE("cortex-a76.cortex-a55", cortexa76cortexa55, cortexa53, V8_2A,
(F16, RCPC, DOTPROD), neoversen1, 0x41, AARCH64_BIG_LITTLE (0xd0b, 0xd05), -1)
+AARCH64_CORE("cortex-a76.cortex-a55", cortexa76cortexa55, cortexa53, V8_2A,
(F16, RCPC, DOTPROD), cortexa76, 0x41, AARCH64_BIG_LITTLE (0xd0b, 0xd05), -1)
/* Armv8-R Architecture Processors. */
AARCH64_CORE("cortex-r82", cortexr82, cortexa53, V8R, (), cortexa53, 0x41,
0xd15, -1)
diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc
index 42617ced73a..46710490a39 100644
--- a/gcc/config/aarch64/aarch64.cc
+++ b/gcc/config/aarch64/aarch64.cc
@@ -1867,7 +1867,7 @@ static const struct tune_params thunderx3t110_tunings =
&thunderx3t110_prefetch_tune
};
-static const struct tune_params neoversen1_tunings =
+static const struct tune_params cortexa76_tunings =
{
&cortexa76_extra_costs,
&generic_addrcost_table,
@@ -1885,18 +1885,18 @@ static const struct tune_params neoversen1_tunings =
}, /* memmov_cost. */
3, /* issue_rate */
(AARCH64_FUSE_AES_AESMC | AARCH64_FUSE_CMP_BRANCH), /* fusible_ops */
- "32:16", /* function_align. */
- "4", /* jump_align. */
- "32:16", /* loop_align. */
- 2, /* int_reassoc_width. */
- 4, /* fp_reassoc_width. */
- 1, /* fma_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_CHEAP_SHIFT_EXTEND), /* tune_flags. */
+ "32:16", /* function_align. */
+ "4", /* jump_align. */
+ "32:16", /* loop_align. */
+ 2, /* int_reassoc_width. */
+ 4, /* fp_reassoc_width. */
+ 1, /* fma_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_CHEAP_SHIFT_EXTEND), /* tune_flags. */
&generic_prefetch_tune
};
@@ -2293,6 +2293,135 @@ static const struct tune_params neoverse512tvb_tunings =
&generic_prefetch_tune
};
+static const struct cpu_addrcost_table neoversen1_addrcost_table =
+{
+ {
+ 0, /* hi */
+ 0, /* si */
+ 0, /* di */
+ 1, /* ti */
+ },
+ 0, /* pre_modify */
+ 0, /* post_modify */
+ 1, /* post_modify_ld3_st3 */
+ 1, /* post_modify_ld4_st4 */
+ 0, /* register_offset */
+ 0, /* register_sextend */
+ 0, /* register_zextend */
+ 0 /* imm_offset */
+};
+
+static const struct cpu_regmove_cost neoversen1_regmove_cost =
+{
+ 1, /* GP2GP */
+ /* Avoid the use of slow int<->fp moves for spilling by setting
+ their cost higher than memmov_cost. */
+ 3, /* GP2FP */
+ 2, /* FP2GP */
+ 2 /* FP2FP */
+};
+
+static const advsimd_vec_cost neoversen1_advsimd_vector_cost =
+{
+ 2, /* int_stmt_cost */
+ 2, /* fp_stmt_cost */
+ 0, /* ld2_st2_permute_cost */
+ 0, /* ld3_st3_permute_cost */
+ 0, /* ld4_st4_permute_cost */
+ 3, /* permute_cost */
+ 6, /* reduc_i8_cost */
+ 5, /* reduc_i16_cost */
+ 3, /* reduc_i32_cost */
+ 3, /* reduc_i64_cost */
+ 8, /* reduc_f16_cost */
+ 5, /* reduc_f32_cost */
+ 5, /* reduc_f64_cost */
+ 0, /* store_elt_extra_cost */
+ 2, /* vec_to_scalar_cost */
+ 2, /* scalar_to_vec_cost */
+ 4, /* align_load_cost */
+ 4, /* unalign_load_cost */
+ 1, /* unalign_store_cost */
+ 1 /* store_cost */
+};
+
+static const aarch64_scalar_vec_issue_info neoversen1_scalar_issue_info =
+{
+ 2, /* loads_stores_per_cycle */
+ 2, /* stores_per_cycle */
+ 2, /* general_ops_per_cycle */
+ 0, /* fp_simd_load_general_ops */
+ 1 /* fp_simd_store_general_ops */
+};
+
+static const aarch64_advsimd_vec_issue_info neoversen1_advsimd_issue_info =
+{
+ {
+ 2, /* loads_stores_per_cycle */
+ 2, /* stores_per_cycle */
+ 2, /* general_ops_per_cycle */
+ 0, /* fp_simd_load_general_ops */
+ 1 /* fp_simd_store_general_ops */
+ },
+ 3, /* ld2_st2_general_ops */
+ 5, /* ld3_st3_general_ops */
+ 11 /* ld4_st4_general_ops */
+};
+
+static const aarch64_vec_issue_info neoversen1_vec_issue_info =
+{
+ &neoversen1_scalar_issue_info, /* scalar */
+ &neoversen1_advsimd_issue_info, /* advsimd */
+ nullptr /* sve */
+};
+
+
+static const struct cpu_vector_cost neoversen1_vector_cost =
+{
+ 1, /* scalar_int_stmt_cost */
+ 1, /* scalar_fp_stmt_cost */
+ 4, /* scalar_load_cost */
+ 1, /* scalar_store_cost */
+ 1, /* cond_taken_branch_cost */
+ 1, /* cond_not_taken_branch_cost */
+ &neoversen1_advsimd_vector_cost, /* advsimd */
+ nullptr, /* sve */
+ &neoversen1_vec_issue_info /* issue_info */
+};
+
+static const struct tune_params neoversen1_tunings =
+{
+ &neoversen1_extra_costs,
+ &neoversen1_addrcost_table,
+ &neoversen1_regmove_cost,
+ &neoversen1_vector_cost,
+ &generic_branch_cost,
+ &generic_approx_modes,
+ SVE_NOT_IMPLEMENTED, /* sve_width */
+ { 4, /* load_int. */
+ 2, /* store_int. */
+ 5, /* load_fp. */
+ 2, /* store_fp. */
+ 4, /* load_pred. */
+ 4 /* store_pred. */
+ }, /* memmov_cost. */
+ 4, /* issue_rate */
+ AARCH64_FUSE_AES_AESMC, /* fusible_ops */
+ "32:16", /* function_align. */
+ "4", /* jump_align. */
+ "32:16", /* loop_align. */
+ 2, /* int_reassoc_width. */
+ 4, /* fp_reassoc_width. */
+ 1, /* fma_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_CHEAP_SHIFT_EXTEND, /* tune_flags. */
+ &generic_prefetch_tune
+};
+
static const advsimd_vec_cost neoversen2_advsimd_vector_cost =
{
2, /* int_stmt_cost */
diff --git a/gcc/config/arm/aarch-cost-tables.h
b/gcc/config/arm/aarch-cost-tables.h
index e3848214728..fce6da6bbcc 100644
--- a/gcc/config/arm/aarch-cost-tables.h
+++ b/gcc/config/arm/aarch-cost-tables.h
@@ -450,6 +450,113 @@ const struct cpu_cost_table cortexa76_extra_costs =
}
};
+const struct cpu_cost_table neoversen1_extra_costs =
+{
+ /* ALU */
+ {
+ 0, /* arith. */
+ 0, /* logical. */
+ 0, /* shift. */
+ 0, /* shift_reg. */
+ COSTS_N_INSNS (1), /* arith_shift. */
+ COSTS_N_INSNS (1), /* arith_shift_reg. */
+ 0, /* log_shift. */
+ COSTS_N_INSNS (1), /* log_shift_reg. */
+ 0, /* extend. */
+ COSTS_N_INSNS (1), /* extend_arith. */
+ COSTS_N_INSNS (1), /* bfi. */
+ 0, /* bfx. */
+ 0, /* clz. */
+ 0, /* rev. */
+ 0, /* non_exec. */
+ true /* non_exec_costs_exec. */
+ },
+ {
+ /* MULT SImode */
+ {
+ COSTS_N_INSNS (1), /* simple. */
+ COSTS_N_INSNS (2), /* flag_setting. */
+ COSTS_N_INSNS (1), /* extend. */
+ COSTS_N_INSNS (1), /* add. */
+ COSTS_N_INSNS (1), /* extend_add. */
+ COSTS_N_INSNS (11) /* idiv. */
+ },
+ /* MULT DImode */
+ {
+ COSTS_N_INSNS (3), /* simple. */
+ 0, /* flag_setting (N/A). */
+ COSTS_N_INSNS (1), /* extend. */
+ COSTS_N_INSNS (3), /* add. */
+ COSTS_N_INSNS (1), /* extend_add. */
+ COSTS_N_INSNS (19) /* idiv. */
+ }
+ },
+ /* LD/ST */
+ {
+ COSTS_N_INSNS (3), /* load. */
+ COSTS_N_INSNS (3), /* load_sign_extend. */
+ COSTS_N_INSNS (3), /* ldrd. */
+ COSTS_N_INSNS (2), /* ldm_1st. */
+ 1, /* ldm_regs_per_insn_1st. */
+ 2, /* ldm_regs_per_insn_subsequent. */
+ COSTS_N_INSNS (4), /* loadf. */
+ COSTS_N_INSNS (4), /* loadd. */
+ COSTS_N_INSNS (3), /* load_unaligned. */
+ 0, /* store. */
+ 0, /* strd. */
+ 0, /* stm_1st. */
+ 1, /* stm_regs_per_insn_1st. */
+ 2, /* stm_regs_per_insn_subsequent. */
+ 0, /* storef. */
+ 0, /* stored. */
+ COSTS_N_INSNS (1), /* store_unaligned. */
+ COSTS_N_INSNS (1), /* loadv. */
+ COSTS_N_INSNS (1) /* storev. */
+ },
+ {
+ /* FP SFmode */
+ {
+ COSTS_N_INSNS (9), /* div. */
+ COSTS_N_INSNS (2), /* mult. */
+ COSTS_N_INSNS (3), /* mult_addsub. */
+ COSTS_N_INSNS (3), /* fma. */
+ COSTS_N_INSNS (1), /* addsub. */
+ COSTS_N_INSNS (1), /* fpconst. */
+ 0, /* neg. */
+ 0, /* compare. */
+ COSTS_N_INSNS (1), /* widen. */
+ COSTS_N_INSNS (1), /* narrow. */
+ COSTS_N_INSNS (1), /* toint. */
+ COSTS_N_INSNS (1), /* fromint. */
+ COSTS_N_INSNS (1) /* roundint. */
+ },
+ /* FP DFmode */
+ {
+ COSTS_N_INSNS (14), /* div. */
+ COSTS_N_INSNS (2), /* mult. */
+ COSTS_N_INSNS (3), /* mult_addsub. */
+ COSTS_N_INSNS (3), /* fma. */
+ COSTS_N_INSNS (1), /* addsub. */
+ COSTS_N_INSNS (1), /* fpconst. */
+ 0, /* neg. */
+ 0, /* compare. */
+ COSTS_N_INSNS (1), /* widen. */
+ COSTS_N_INSNS (1), /* narrow. */
+ COSTS_N_INSNS (1), /* toint. */
+ COSTS_N_INSNS (1), /* fromint. */
+ COSTS_N_INSNS (1) /* roundint. */
+ }
+ },
+ /* Vector */
+ {
+ COSTS_N_INSNS (1), /* alu. */
+ COSTS_N_INSNS (4), /* mult. */
+ COSTS_N_INSNS (1), /* movi. */
+ COSTS_N_INSNS (1), /* dup. */
+ COSTS_N_INSNS (1) /* extract. */
+ }
+};
+
const struct cpu_cost_table exynosm1_extra_costs =
{
/* ALU */
--
2.39.2 (Apple Git-143)
--
Evandro Menezes ◊ evan...@yahoo.com ◊ Austin, TX
Άγιος ο Θεός ⁂ ܩܕܝܫܐ ܐܢ̱ܬ ܠܐ ܡܝܘܬܐ ⁂ Sanctus Deus
