[PATCH] RISC-V: Fix compiler warning of riscv_arg_has_vector

[Lehua Ding]

Hi,

This little patch fixes a compile warning issue that my previous patch 
introduced, sorry for introducing this issue.

Best,
Lehua

gcc/ChangeLog:

        * config/riscv/riscv.cc (riscv_arg_has_vector): Add default branch.

---
 gcc/config/riscv/riscv.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/gcc/config/riscv/riscv.cc b/gcc/config/riscv/riscv.cc
index 6eb63a9d4de7..9558e28de3fc 100644
--- a/gcc/config/riscv/riscv.cc
+++ b/gcc/config/riscv/riscv.cc
@@ -3820,8 +3820,8 @@ riscv_arg_has_vector (const_tree type)
   switch (TREE_CODE (type))
     {
     case RECORD_TYPE:
-      /* If it is a record, it is further determined whether its fileds have
-         vector type.  */
+      /* If it is a record, it is further determined whether its fields have
+        vector type.  */
       for (tree f = TYPE_FIELDS (type); f; f = DECL_CHAIN (f))
        if (TREE_CODE (f) == FIELD_DECL)
          {
@@ -3835,6 +3835,8 @@ riscv_arg_has_vector (const_tree type)
       break;
     case ARRAY_TYPE:
       return riscv_arg_has_vector (TREE_TYPE (type));
+    default:
+      break;
     }
 
   return false;
-- 
2.36.3