tcg/riscv: Remove add with zero on user-only memory access

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/riscv/tcg-target.c.inc

@@ -1130,10 +1130,7 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is_64)
         tcg_out_ext32u(s, base, addr_regl);
         addr_regl = base;
     }
-
-    if (guest_base == 0) {
-        tcg_out_opc_reg(s, OPC_ADD, base, addr_regl, TCG_REG_ZERO);
-    } else {
+    if (guest_base != 0) {
         tcg_out_opc_reg(s, OPC_ADD, base, TCG_GUEST_BASE_REG, addr_regl);
     }
     tcg_out_qemu_ld_direct(s, data_regl, data_regh, base, opc, is_64);
@@ -1199,10 +1196,7 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is_64)
         tcg_out_ext32u(s, base, addr_regl);
         addr_regl = base;
     }
-
-    if (guest_base == 0) {
-        tcg_out_opc_reg(s, OPC_ADD, base, addr_regl, TCG_REG_ZERO);
-    } else {
+    if (guest_base != 0) {
         tcg_out_opc_reg(s, OPC_ADD, base, TCG_GUEST_BASE_REG, addr_regl);
     }
     tcg_out_qemu_st_direct(s, data_regl, data_regh, base, opc);