[Committed] RISC-V: Suppress warning

[Juzhe-Zhong <juzhe.zhong@rivai.ai>]

../../gcc/config/riscv/riscv.cc: In function 'void riscv_init_cumulative_args(CUMULATIVE_ARGS*, tree, rtx, tree, int)':
../../gcc/config/riscv/riscv.cc:4879:34: error: unused parameter 'fndecl' [-Werror=unused-parameter]
4879 |                             tree fndecl,
      |                             ~~~~~^~~~~~
../../gcc/config/riscv/riscv.cc: In function 'bool riscv_vector_mode_supported_any_target_p(machine_mode)':
../../gcc/config/riscv/riscv.cc:10537:56: error: unused parameter 'mode' [-Werror=unused-parameter]
10537 | riscv_vector_mode_supported_any_target_p (machine_mode mode)
      |                                           ~~~~~~~~~~~~~^~~~
cc1plus: all warnings being treated as errors
make[3]: *** [Makefile:2559: riscv.o] Error 1

Suppress these warnings.

gcc/ChangeLog:

	* config/riscv/riscv.cc (riscv_init_cumulative_args): Suppress warning.
	(riscv_vector_mode_supported_any_target_p): Ditto.

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

diff --git a/gcc/config/riscv/riscv.cc b/gcc/config/riscv/riscv.cc
index dd6e68a08c2..1f9546f4d3e 100644
--- a/gcc/config/riscv/riscv.cc
+++ b/gcc/config/riscv/riscv.cc
@@ -4876,7 +4876,7 @@ void
 riscv_init_cumulative_args (CUMULATIVE_ARGS *cum,
 			    tree fntype ATTRIBUTE_UNUSED,
 			    rtx libname ATTRIBUTE_UNUSED,
-			    tree fndecl,
+			    tree fndecl ATTRIBUTE_UNUSED,
 			    int caller ATTRIBUTE_UNUSED)
 {
   memset (cum, 0, sizeof (*cum));
@@ -10534,7 +10534,7 @@ extract_base_offset_in_addr (rtx mem, rtx *base, rtx *offset)
 /* Implements target hook vector_mode_supported_any_target_p.  */
 
 static bool
-riscv_vector_mode_supported_any_target_p (machine_mode mode)
+riscv_vector_mode_supported_any_target_p (machine_mode)
 {
   if (TARGET_XTHEADVECTOR)
     return false;
-- 
2.36.3