Hi gcc-patches group,
Please find the patch for adding rtx_costs routine for vulcan cpu.
Tested with compiling cross aarch64-linux-gcc , bootstrapped native
aarch64-unknown-linux-gnu
and make check (gcc). No new regression failure is added by this patch.
Kindly review and merge the patch to trunk, if the patch is okay.
Thanks.
gcc/ChangeLog:
Virendra Pathak <virendra.pat...@broadcom.com>
* config/aarch64/aarch64-cores.def: Update vulcan COSTS.
* config/aarch64/aarch64-cost-tables.h
(vulcan_extra_costs): New variable.
* config/aarch64/aarch64.c
(vulcan_addrcost_table): Likewise.
(vulcan_regmove_cost): Likewise.
(vulcan_vector_cost): Likewise.
(vulcan_branch_cost): Likewise.
(vulcan_tunings): Likewise.
with regards,
Virendra Pathak
From 602d25a25b69b7615e52b03bbaa28919a08b6bd0 Mon Sep 17 00:00:00 2001
From: Virendra Pathak <virendra.pat...@broadcom.com>
Date: Tue, 21 Jun 2016 01:44:38 -0700
Subject: [PATCH] AArch64: Add rtx_costs routine for vulcan.
---
gcc/config/aarch64/aarch64-cores.def | 2 +-
gcc/config/aarch64/aarch64-cost-tables.h | 102 +++++++++++++++++++++++++++++++
gcc/config/aarch64/aarch64.c | 75 +++++++++++++++++++++++
3 files changed, 178 insertions(+), 1 deletion(-)
diff --git a/gcc/config/aarch64/aarch64-cores.def
b/gcc/config/aarch64/aarch64-cores.def
index ced8f94..f29d25a 100644
--- a/gcc/config/aarch64/aarch64-cores.def
+++ b/gcc/config/aarch64/aarch64-cores.def
@@ -51,7 +51,7 @@ AARCH64_CORE("xgene1", xgene1, xgene1, 8A,
AARCH64_FL_FOR_ARCH8, xge
/* V8.1 Architecture Processors. */
-AARCH64_CORE("vulcan", vulcan, cortexa57, 8_1A, AARCH64_FL_FOR_ARCH8_1 |
AARCH64_FL_CRYPTO, cortexa57, "0x42", "0x516")
+AARCH64_CORE("vulcan", vulcan, cortexa57, 8_1A, AARCH64_FL_FOR_ARCH8_1 |
AARCH64_FL_CRYPTO, vulcan, "0x42", "0x516")
/* V8 big.LITTLE implementations. */
diff --git a/gcc/config/aarch64/aarch64-cost-tables.h
b/gcc/config/aarch64/aarch64-cost-tables.h
index 3a3f519..12ad52e 100644
--- a/gcc/config/aarch64/aarch64-cost-tables.h
+++ b/gcc/config/aarch64/aarch64-cost-tables.h
@@ -127,6 +127,108 @@ const struct cpu_cost_table thunderx_extra_costs =
}
};
+const struct cpu_cost_table vulcan_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. */
+ COSTS_N_INSNS (1), /* Log_shift. */
+ COSTS_N_INSNS (1), /* Log_shift_reg. */
+ 0, /* Extend. */
+ COSTS_N_INSNS (1), /* Extend_arith. */
+ 0, /* Bfi. */
+ 0, /* Bfx. */
+ COSTS_N_INSNS (3), /* Clz. */
+ 0, /* Rev. */
+ 0, /* Non_exec. */
+ true /* Non_exec_costs_exec. */
+ },
+ {
+ /* MULT SImode */
+ {
+ COSTS_N_INSNS (4), /* Simple. */
+ COSTS_N_INSNS (4), /* Flag_setting. */
+ COSTS_N_INSNS (4), /* Extend. */
+ COSTS_N_INSNS (5), /* Add. */
+ COSTS_N_INSNS (5), /* Extend_add. */
+ COSTS_N_INSNS (18) /* Idiv. */
+ },
+ /* MULT DImode */
+ {
+ COSTS_N_INSNS (4), /* Simple. */
+ 0, /* Flag_setting. */
+ COSTS_N_INSNS (4), /* Extend. */
+ COSTS_N_INSNS (5), /* Add. */
+ COSTS_N_INSNS (5), /* Extend_add. */
+ COSTS_N_INSNS (26) /* Idiv. */
+ }
+ },
+ /* LD/ST */
+ {
+ COSTS_N_INSNS (4), /* Load. */
+ COSTS_N_INSNS (4), /* Load_sign_extend. */
+ COSTS_N_INSNS (5), /* Ldrd. */
+ COSTS_N_INSNS (4), /* Ldm_1st. */
+ 1, /* Ldm_regs_per_insn_1st. */
+ 1, /* Ldm_regs_per_insn_subsequent. */
+ COSTS_N_INSNS (4), /* Loadf. */
+ COSTS_N_INSNS (4), /* Loadd. */
+ COSTS_N_INSNS (4), /* Load_unaligned. */
+ 0, /* Store. */
+ 0, /* Strd. */
+ 0, /* Stm_1st. */
+ 1, /* Stm_regs_per_insn_1st. */
+ 1, /* Stm_regs_per_insn_subsequent. */
+ 0, /* Storef. */
+ 0, /* Stored. */
+ 0, /* Store_unaligned. */
+ COSTS_N_INSNS (1), /* Loadv. */
+ COSTS_N_INSNS (1) /* Storev. */
+ },
+ {
+ /* FP SFmode */
+ {
+ COSTS_N_INSNS (16), /* Div. */
+ COSTS_N_INSNS (6), /* Mult. */
+ COSTS_N_INSNS (6), /* Mult_addsub. */
+ COSTS_N_INSNS (6), /* Fma. */
+ COSTS_N_INSNS (6), /* Addsub. */
+ COSTS_N_INSNS (5), /* Fpconst. */
+ COSTS_N_INSNS (5), /* Neg. */
+ COSTS_N_INSNS (5), /* Compare. */
+ COSTS_N_INSNS (7), /* Widen. */
+ COSTS_N_INSNS (7), /* Narrow. */
+ COSTS_N_INSNS (7), /* Toint. */
+ COSTS_N_INSNS (7), /* Fromint. */
+ COSTS_N_INSNS (7) /* Roundint. */
+ },
+ /* FP DFmode */
+ {
+ COSTS_N_INSNS (23), /* Div. */
+ COSTS_N_INSNS (6), /* Mult. */
+ COSTS_N_INSNS (6), /* Mult_addsub. */
+ COSTS_N_INSNS (6), /* Fma. */
+ COSTS_N_INSNS (6), /* Addsub. */
+ COSTS_N_INSNS (5), /* Fpconst. */
+ COSTS_N_INSNS (5), /* Neg. */
+ COSTS_N_INSNS (5), /* Compare. */
+ COSTS_N_INSNS (7), /* Widen. */
+ COSTS_N_INSNS (7), /* Narrow. */
+ COSTS_N_INSNS (7), /* Toint. */
+ COSTS_N_INSNS (7), /* Fromint. */
+ COSTS_N_INSNS (7) /* Roundint. */
+ }
+ },
+ /* Vector */
+ {
+ COSTS_N_INSNS (1) /* Alu. */
+ }
+};
#endif
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index 2b3e9ae..d7eb754 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -250,6 +250,22 @@ static const struct cpu_addrcost_table
xgene1_addrcost_table =
0, /* imm_offset */
};
+static const struct cpu_addrcost_table vulcan_addrcost_table =
+{
+ {
+ 0, /* hi */
+ 0, /* si */
+ 0, /* di */
+ 2, /* ti */
+ },
+ 0, /* pre_modify */
+ 0, /* post_modify */
+ 2, /* register_offset */
+ 3, /* register_sextend */
+ 3, /* register_zextend */
+ 0, /* imm_offset */
+};
+
static const struct cpu_regmove_cost generic_regmove_cost =
{
1, /* GP2GP */
@@ -308,6 +324,15 @@ static const struct cpu_regmove_cost xgene1_regmove_cost =
2 /* FP2FP */
};
+static const struct cpu_regmove_cost vulcan_regmove_cost =
+{
+ 1, /* GP2GP */
+ /* Avoid spilling to FP regs for Vulcan. */
+ 8, /* GP2FP */
+ 8, /* FP2GP */
+ 4 /* FP2FP */
+};
+
/* Generic costs for vector insn classes. */
static const struct cpu_vector_cost generic_vector_cost =
{
@@ -379,6 +404,24 @@ static const struct cpu_vector_cost xgene1_vector_cost =
1 /* cond_not_taken_branch_cost */
};
+/* Costs for vector insn classes for Vulcan. */
+static const struct cpu_vector_cost vulcan_vector_cost =
+{
+ 6, /* scalar_stmt_cost */
+ 4, /* scalar_load_cost */
+ 1, /* scalar_store_cost */
+ 6, /* vec_stmt_cost */
+ 3, /* vec_permute_cost */
+ 6, /* vec_to_scalar_cost */
+ 5, /* scalar_to_vec_cost */
+ 8, /* vec_align_load_cost */
+ 8, /* vec_unalign_load_cost */
+ 4, /* vec_unalign_store_cost */
+ 4, /* vec_store_cost */
+ 2, /* cond_taken_branch_cost */
+ 1 /* cond_not_taken_branch_cost */
+};
+
/* Generic costs for branch instructions. */
static const struct cpu_branch_cost generic_branch_cost =
{
@@ -393,6 +436,13 @@ static const struct cpu_branch_cost cortexa57_branch_cost =
3 /* Unpredictable. */
};
+/* Branch costs for Vulcan. */
+static const struct cpu_branch_cost vulcan_branch_cost =
+{
+ 1, /* Predictable. */
+ 3 /* Unpredictable. */
+};
+
/* Generic approximation modes. */
static const cpu_approx_modes generic_approx_modes =
{
@@ -621,6 +671,31 @@ static const struct tune_params xgene1_tunings =
(AARCH64_EXTRA_TUNE_NONE) /* tune_flags. */
};
+static const struct tune_params vulcan_tunings =
+{
+ &vulcan_extra_costs,
+ &vulcan_addrcost_table,
+ &vulcan_regmove_cost,
+ &vulcan_vector_cost,
+ &vulcan_branch_cost,
+ &generic_approx_modes,
+ 4, /* memmov_cost. */
+ 4, /* issue_rate. */
+ AARCH64_FUSE_NOTHING, /* fuseable_ops. */
+ 16, /* function_align. */
+ 8, /* jump_align. */
+ 16, /* loop_align. */
+ 3, /* int_reassoc_width. */
+ 2, /* fp_reassoc_width. */
+ 2, /* vec_reassoc_width. */
+ 2, /* min_div_recip_mul_sf. */
+ 2, /* min_div_recip_mul_df. */
+ 0, /* max_case_values. */
+ 0, /* cache_line_size. */
+ tune_params::AUTOPREFETCHER_OFF, /* autoprefetcher_model. */
+ (AARCH64_EXTRA_TUNE_NONE) /* tune_flags. */
+};
+
/* Support for fine-grained override of the tuning structures. */
struct aarch64_tuning_override_function
{
--
2.1.0
