Use max 2 quadwords moves for putting blk on the stack.
@@ -259,7 +259,7 @@ static void machinize_call (gen_ctx_t gen_ctx, MIR_insn_t call_insn) {
gen_assert (arg_op.mode == MIR_OP_MEM);
size = (arg_op.u.mem.disp + 7) / 8 * 8;
gen_assert (prev_call_insn != NULL); /* call_insn should not be 1st after simplification */
- if (size > 0 && size <= 8 * 8) { /* upto 8 moves */
+ if (size > 0 && size <= 2 * 8) { /* upto 2 moves */
disp = 0;
first_p = TRUE;
temp_op = MIR_new_reg_op (ctx, gen_new_temp_reg (gen_ctx, MIR_T_I64, func));
