[PATCH] RISC-V: Support (set (mem) (const_poly_int))

[juzhe . zhong]

From: Ju-Zhe Zhong <juzhe.zh...@rivai.ai>

gcc/ChangeLog:

        * config/riscv/riscv.cc (riscv_legitimize_move): Adjust using force_reg.

---
 gcc/config/riscv/riscv.cc | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/gcc/config/riscv/riscv.cc b/gcc/config/riscv/riscv.cc
index 98374a922d1..1fd34f6ae8d 100644
--- a/gcc/config/riscv/riscv.cc
+++ b/gcc/config/riscv/riscv.cc
@@ -1967,9 +1967,7 @@ riscv_legitimize_move (machine_mode mode, rtx dest, rtx 
src)
       */
       if (MEM_P (dest))
        {
-         rtx tmp = gen_reg_rtx (mode);
-         emit_move_insn (tmp, src);
-         emit_move_insn (dest, tmp);
+         emit_move_insn (dest, force_reg (mode, src));
          return true;
        }
       poly_int64 value = rtx_to_poly_int64 (src);
-- 
2.36.1