[PATCH v4] RISC-V: Refactor riscv-vector-builtins-bases.cc

["Jun Sha (Joshua)" <cooper.joshua@linux.alibaba.com>]

This patch moves the definition of the enums lst_type and
frm_op_type into riscv-vector-builtins-bases.h and removes
the static visibility of fold_fault_load(), so these
can be used in other compile units.

gcc/ChangeLog:

	* config/riscv/riscv-vector-builtins-bases.cc (enum lst_type):
	(enum frm_op_type): move to riscv-vector-builtins-bases.h
	* config/riscv/riscv-vector-builtins-bases.h
	(GCC_RISCV_VECTOR_BUILTINS_BASES_H): Add header files.
	(enum lst_type): move from
	(enum frm_op_type): riscv-vector-builtins-bases.cc
	(fold_fault_load): riscv-vector-builtins-bases.cc

Co-authored-by: Jin Ma <jinma@linux.alibaba.com>
Co-authored-by: Xianmiao Qu <cooper.qu@linux.alibaba.com>
Co-authored-by: Christoph Müllner <christoph.muellner@vrull.eu>
---
 .../riscv/riscv-vector-builtins-bases.cc      | 18 +-----------------
 .../riscv/riscv-vector-builtins-bases.h       | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+), 17 deletions(-)

diff --git a/gcc/config/riscv/riscv-vector-builtins-bases.cc b/gcc/config/riscv/riscv-vector-builtins-bases.cc
index d70468542ee..c51affde353 100644
--- a/gcc/config/riscv/riscv-vector-builtins-bases.cc
+++ b/gcc/config/riscv/riscv-vector-builtins-bases.cc
@@ -48,24 +48,8 @@ using namespace riscv_vector;
 
 namespace riscv_vector {
 
-/* Enumerates types of loads/stores operations.
-   It's only used in here so we don't define it
-   in riscv-vector-builtins-bases.h.  */
-enum lst_type
-{
-  LST_UNIT_STRIDE,
-  LST_STRIDED,
-  LST_INDEXED,
-};
-
-enum frm_op_type
-{
-  NO_FRM,
-  HAS_FRM,
-};
-
 /* Helper function to fold vleff and vlsegff.  */
-static gimple *
+gimple *
 fold_fault_load (gimple_folder &f)
 {
   /* fold fault_load (const *base, size_t *new_vl, size_t vl)
diff --git a/gcc/config/riscv/riscv-vector-builtins-bases.h b/gcc/config/riscv/riscv-vector-builtins-bases.h
index 131041ea66f..42d0cd17dc1 100644
--- a/gcc/config/riscv/riscv-vector-builtins-bases.h
+++ b/gcc/config/riscv/riscv-vector-builtins-bases.h
@@ -21,8 +21,27 @@
 #ifndef GCC_RISCV_VECTOR_BUILTINS_BASES_H
 #define GCC_RISCV_VECTOR_BUILTINS_BASES_H
 
+#include "gimple.h"
+#include "riscv-vector-builtins.h"
+
 namespace riscv_vector {
 
+/* Enumerates types of loads/stores operations.  */
+enum lst_type
+{
+  LST_UNIT_STRIDE,
+  LST_STRIDED,
+  LST_INDEXED,
+};
+
+enum frm_op_type
+{
+  NO_FRM,
+  HAS_FRM,
+};
+
+extern gimple *fold_fault_load (gimple_folder &f);
+
 namespace bases {
 extern const function_base *const vsetvl;
 extern const function_base *const vsetvlmax;
-- 
2.17.1