Commit 4250da10 authored by Richard Henderson's avatar Richard Henderson
Browse files

tcg: Improve call argument loading 



Free the argument register only after we have verified that the
temporary is not already in that register.  This case is likely
now that we are back propagating the preferred register.

Signed-off-by: default avatarRichard Henderson <richard.henderson@linaro.org>
parent 25f49c5f

tcg/tcg.c

+2 −1
Original line number Diff line number Diff line
@@ -3611,15 +3611,16 @@ static void tcg_reg_alloc_call(TCGContext *s, TCGOp *op) 
        if (arg != TCG_CALL_DUMMY_ARG) {

            ts = arg_temp(arg);

            reg = tcg_target_call_iarg_regs[i];

            tcg_reg_free(s, reg, allocated_regs);



            if (ts->val_type == TEMP_VAL_REG) {

                if (ts->reg != reg) {

                    tcg_reg_free(s, reg, allocated_regs);

                    tcg_out_mov(s, ts->type, reg, ts->reg);

                }

            } else {

                TCGRegSet arg_set = 0;



                tcg_reg_free(s, reg, allocated_regs);

                tcg_regset_set_reg(arg_set, reg);

                temp_load(s, ts, arg_set, allocated_regs, 0);

            }