This patch adds the field overlap_op_by_pieces to the struct
riscv_tune_param, which allows to enable the overlap_op_by_pieces
feature of the by-pieces infrastructure.
gcc/ChangeLog:
* config/riscv/riscv.c (struct riscv_tune_param): New field.
(riscv_overlap_op_by_pieces): New function.
(TARGET_OVERLAP_OP_BY_PIECES_P): Connect to
riscv_overlap_op_by_pieces.
Signed-off-by: Christoph Muellner <cmuell...@gcc.gnu.org>
---
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 576960bb37c..824e930ef05 100644
--- a/gcc/config/riscv/riscv.c
+++ b/gcc/config/riscv/riscv.c
@@ -220,6 +220,7 @@ struct riscv_tune_param
unsigned short branch_cost;
unsigned short memory_cost;
bool slow_unaligned_access;
+ bool overlap_op_by_pieces;
};
/* Information about one micro-arch we know about. */
@@ -285,6 +286,7 @@ static const struct riscv_tune_param rocket_tune_info = {
3, /* branch_cost */
5, /* memory_cost */
true, /*
slow_unaligned_access */
+ false, /* overlap_op_by_pieces */
};
/* Costs to use when optimizing for Sifive 7 Series. */
@@ -298,6 +300,7 @@ static const struct riscv_tune_param sifive_7_tune_info = {
4, /* branch_cost */
3, /* memory_cost */
true, /*
slow_unaligned_access */
+ false, /* overlap_op_by_pieces */
};
/* Costs to use when optimizing for T-HEAD c906. */
@@ -311,6 +314,7 @@ static const struct riscv_tune_param thead_c906_tune_info =
{
3, /* branch_cost */
5, /* memory_cost */
false, /* slow_unaligned_access */
+ false, /* overlap_op_by_pieces */
};
/* Costs to use when optimizing for size. */
@@ -324,6 +328,7 @@ static const struct riscv_tune_param
optimize_size_tune_info = {
1, /* branch_cost */
2, /* memory_cost */
false, /* slow_unaligned_access */
+ false, /* overlap_op_by_pieces */
};
static tree riscv_handle_fndecl_attribute (tree *, tree, tree, int, bool *);
@@ -5201,6 +5206,12 @@ riscv_slow_unaligned_access (machine_mode, unsigned int)
return riscv_slow_unaligned_access_p;
}
+static bool
+riscv_overlap_op_by_pieces (void)
+{
+ return tune_param->overlap_op_by_pieces;
+}
+
/* Implement TARGET_CAN_CHANGE_MODE_CLASS. */
static bool
@@ -5525,6 +5536,9 @@ riscv_asan_shadow_offset (void)
#undef TARGET_SLOW_UNALIGNED_ACCESS
#define TARGET_SLOW_UNALIGNED_ACCESS riscv_slow_unaligned_access
+#undef TARGET_OVERLAP_OP_BY_PIECES_P
+#define TARGET_OVERLAP_OP_BY_PIECES_P riscv_overlap_op_by_pieces
+
#undef TARGET_SECONDARY_MEMORY_NEEDED
#define TARGET_SECONDARY_MEMORY_NEEDED riscv_secondary_memory_needed
--
2.31.1
