[gcc r14-8301] RISC-V: Suppress warning

[Pan Li]

https://gcc.gnu.org/g:615e25c82de97acc17ab438f88d6788cf7ffe1d6

commit r14-8301-g615e25c82de97acc17ab438f88d6788cf7ffe1d6
Author: Juzhe-Zhong <juzhe.zhong@rivai.ai>
Date:   Sat Jan 20 08:27:39 2024 +0800

    RISC-V: Suppress warning
    
    ../../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.

Diff:
---
 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;