gcc/
* config/riscv/riscv.c (thead_c906_tune_info): New.
* config/riscv/riscv.c (riscv_tune_info_table): Use new tune.
---
gcc/config/riscv/riscv.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/gcc/config/riscv/riscv.c b/gcc/config/riscv/riscv.c
index 1baa2990ee27..576960bb37cb 100644
--- a/gcc/config/riscv/riscv.c
+++ b/gcc/config/riscv/riscv.c
@@ -300,6 +300,19 @@ static const struct riscv_tune_param sifive_7_tune_info = {
true, /*
slow_unaligned_access */
};
+/* Costs to use when optimizing for T-HEAD c906. */
+static const struct riscv_tune_param thead_c906_tune_info = {
+ {COSTS_N_INSNS (4), COSTS_N_INSNS (5)}, /* fp_add */
+ {COSTS_N_INSNS (4), COSTS_N_INSNS (5)}, /* fp_mul */
+ {COSTS_N_INSNS (20), COSTS_N_INSNS (20)}, /* fp_div */
+ {COSTS_N_INSNS (4), COSTS_N_INSNS (4)}, /* int_mul */
+ {COSTS_N_INSNS (6), COSTS_N_INSNS (6)}, /* int_div */
+ 1, /* issue_rate */
+ 3, /* branch_cost */
+ 5, /* memory_cost */
+ false, /* slow_unaligned_access */
+};
+
/* Costs to use when optimizing for size. */
static const struct riscv_tune_param optimize_size_tune_info = {
{COSTS_N_INSNS (1), COSTS_N_INSNS (1)}, /* fp_add */
@@ -348,6 +361,7 @@ static const struct riscv_tune_info riscv_tune_info_table[]
= {
{ "sifive-3-series", generic, &rocket_tune_info },
{ "sifive-5-series", generic, &rocket_tune_info },
{ "sifive-7-series", sifive_7, &sifive_7_tune_info },
+ { "thead-c906", generic, &thead_c906_tune_info },
{ "size", generic, &optimize_size_tune_info },
};
--
2.24.3 (Apple Git-128)
