/*

 * Tiny Code Generator for QEMU

 *

 * Copyright (c) 2008 Fabrice Bellard

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */

#include "tcg.h"

int gen_new_label(void);

static inline void tcg_gen_op1_i32(int opc, TCGv_i32 arg1)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I32(arg1);

}

static inline void tcg_gen_op1_i64(int opc, TCGv_i64 arg1)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I64(arg1);

}

static inline void tcg_gen_op1i(int opc, TCGArg arg1)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = arg1;

}

static inline void tcg_gen_op2_i32(int opc, TCGv_i32 arg1, TCGv_i32 arg2)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I32(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg2);

}

static inline void tcg_gen_op2_i64(int opc, TCGv_i64 arg1, TCGv_i64 arg2)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I64(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg2);

}

static inline void tcg_gen_op2i_i32(int opc, TCGv_i32 arg1, TCGArg arg2)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I32(arg1);

    *gen_opparam_ptr++ = arg2;

}

static inline void tcg_gen_op2i_i64(int opc, TCGv_i64 arg1, TCGArg arg2)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I64(arg1);

    *gen_opparam_ptr++ = arg2;

}

static inline void tcg_gen_op2ii(int opc, TCGArg arg1, TCGArg arg2)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = arg1;

    *gen_opparam_ptr++ = arg2;

}

static inline void tcg_gen_op3_i32(int opc, TCGv_i32 arg1, TCGv_i32 arg2,

                                   TCGv_i32 arg3)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I32(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg2);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg3);

}

static inline void tcg_gen_op3_i64(int opc, TCGv_i64 arg1, TCGv_i64 arg2,

                                   TCGv_i64 arg3)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I64(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg2);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg3);

}

static inline void tcg_gen_op3i_i32(int opc, TCGv_i32 arg1, TCGv_i32 arg2,

                                    TCGArg arg3)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I32(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg2);

    *gen_opparam_ptr++ = arg3;

}

static inline void tcg_gen_op3i_i64(int opc, TCGv_i64 arg1, TCGv_i64 arg2,

                                    TCGArg arg3)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I64(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg2);

    *gen_opparam_ptr++ = arg3;

}

static inline void tcg_gen_ldst_op_i32(int opc, TCGv_i32 val, TCGv_ptr base,

                                       TCGArg offset)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I32(val);

    *gen_opparam_ptr++ = GET_TCGV_PTR(base);

    *gen_opparam_ptr++ = offset;

}

static inline void tcg_gen_ldst_op_i64(int opc, TCGv_i64 val, TCGv_ptr base,

                                       TCGArg offset)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I64(val);

    *gen_opparam_ptr++ = GET_TCGV_PTR(base);

    *gen_opparam_ptr++ = offset;

}

static inline void tcg_gen_qemu_ldst_op_i64_i32(int opc, TCGv_i64 val, TCGv_i32 addr,

                                                TCGArg mem_index)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I64(val);

    *gen_opparam_ptr++ = GET_TCGV_I32(addr);

    *gen_opparam_ptr++ = mem_index;

}

static inline void tcg_gen_qemu_ldst_op_i64_i64(int opc, TCGv_i64 val, TCGv_i64 addr,

                                                TCGArg mem_index)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I64(val);

    *gen_opparam_ptr++ = GET_TCGV_I64(addr);

    *gen_opparam_ptr++ = mem_index;

}

static inline void tcg_gen_op4_i32(int opc, TCGv_i32 arg1, TCGv_i32 arg2,

                                   TCGv_i32 arg3, TCGv_i32 arg4)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I32(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg2);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg3);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg4);

}

static inline void tcg_gen_op4_i64(int opc, TCGv_i64 arg1, TCGv_i64 arg2,

                                   TCGv_i64 arg3, TCGv_i64 arg4)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I64(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg2);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg3);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg4);

}

static inline void tcg_gen_op4i_i32(int opc, TCGv_i32 arg1, TCGv_i32 arg2,

                                    TCGv_i32 arg3, TCGArg arg4)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I32(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg2);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg3);

    *gen_opparam_ptr++ = arg4;

}

static inline void tcg_gen_op4i_i64(int opc, TCGv_i64 arg1, TCGv_i64 arg2,

                                    TCGv_i64 arg3, TCGArg arg4)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I64(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg2);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg3);

    *gen_opparam_ptr++ = arg4;

}

static inline void tcg_gen_op4ii_i32(int opc, TCGv_i32 arg1, TCGv_i32 arg2,

                                     TCGArg arg3, TCGArg arg4)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I32(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg2);

    *gen_opparam_ptr++ = arg3;

    *gen_opparam_ptr++ = arg4;

}

static inline void tcg_gen_op4ii_i64(int opc, TCGv_i64 arg1, TCGv_i64 arg2,

                                     TCGArg arg3, TCGArg arg4)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I64(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg2);

    *gen_opparam_ptr++ = arg3;

    *gen_opparam_ptr++ = arg4;

}

static inline void tcg_gen_op5_i32(int opc, TCGv_i32 arg1, TCGv_i32 arg2,

                                   TCGv_i32 arg3, TCGv_i32 arg4, TCGv_i32 arg5)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I32(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg2);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg3);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg4);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg5);

}

static inline void tcg_gen_op5_i64(int opc, TCGv_i64 arg1, TCGv_i64 arg2,

                                   TCGv_i64 arg3, TCGv_i64 arg4, TCGv_i64 arg5)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I64(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg2);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg3);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg4);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg5);

}

static inline void tcg_gen_op5i_i32(int opc, TCGv_i32 arg1, TCGv_i32 arg2,

                                    TCGv_i32 arg3, TCGv_i32 arg4, TCGArg arg5)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I32(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg2);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg3);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg4);

    *gen_opparam_ptr++ = arg5;

}

static inline void tcg_gen_op5i_i64(int opc, TCGv_i64 arg1, TCGv_i64 arg2,

                                    TCGv_i64 arg3, TCGv_i64 arg4, TCGArg arg5)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I64(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg2);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg3);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg4);

    *gen_opparam_ptr++ = arg5;

}

static inline void tcg_gen_op6_i32(int opc, TCGv_i32 arg1, TCGv_i32 arg2,

                                   TCGv_i32 arg3, TCGv_i32 arg4, TCGv_i32 arg5,

                                   TCGv_i32 arg6)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I32(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg2);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg3);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg4);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg5);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg6);

}

static inline void tcg_gen_op6_i64(int opc, TCGv_i64 arg1, TCGv_i64 arg2,

                                   TCGv_i64 arg3, TCGv_i64 arg4, TCGv_i64 arg5,

                                   TCGv_i64 arg6)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I64(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg2);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg3);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg4);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg5);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg6);

}

static inline void tcg_gen_op6ii_i32(int opc, TCGv_i32 arg1, TCGv_i32 arg2,

                                     TCGv_i32 arg3, TCGv_i32 arg4, TCGArg arg5,

                                     TCGArg arg6)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I32(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg2);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg3);

    *gen_opparam_ptr++ = GET_TCGV_I32(arg4);

    *gen_opparam_ptr++ = arg5;

    *gen_opparam_ptr++ = arg6;

}

static inline void tcg_gen_op6ii_i64(int opc, TCGv_i64 arg1, TCGv_i64 arg2,

                                     TCGv_i64 arg3, TCGv_i64 arg4, TCGArg arg5,

                                     TCGArg arg6)

{

    *gen_opc_ptr++ = opc;

    *gen_opparam_ptr++ = GET_TCGV_I64(arg1);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg2);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg3);

    *gen_opparam_ptr++ = GET_TCGV_I64(arg4);

    *gen_opparam_ptr++ = arg5;

    *gen_opparam_ptr++ = arg6;

}

static inline void gen_set_label(int n)

{

    tcg_gen_op1i(INDEX_op_set_label, n);

}

static inline void tcg_gen_br(int label)

{

    tcg_gen_op1i(INDEX_op_br, label);

}

static inline void tcg_gen_mov_i32(TCGv_i32 ret, TCGv_i32 arg)

{

    if (GET_TCGV_I32(ret) != GET_TCGV_I32(arg))

        tcg_gen_op2_i32(INDEX_op_mov_i32, ret, arg);

}

static inline void tcg_gen_movi_i32(TCGv_i32 ret, int32_t arg)

{

    tcg_gen_op2i_i32(INDEX_op_movi_i32, ret, arg);

}

/* helper calls */

static inline void tcg_gen_helperN(void *func, int flags, int sizemask,

                                   TCGArg ret, int nargs, TCGArg *args)

{

    TCGv_ptr fn;

    fn = tcg_const_ptr((tcg_target_long)func);

    tcg_gen_callN(&tcg_ctx, fn, flags, sizemask, ret,

                  nargs, args);

    tcg_temp_free_ptr(fn);

}

/* FIXME: Should this be pure?  */

static inline void tcg_gen_helper64(void *func, TCGv_i64 ret,

                                    TCGv_i64 a, TCGv_i64 b)

{

    TCGv_ptr fn;

    TCGArg args[2];

    fn = tcg_const_ptr((tcg_target_long)func);

    args[0] = GET_TCGV_I64(a);

    args[1] = GET_TCGV_I64(b);

    tcg_gen_callN(&tcg_ctx, fn, 0, 7, GET_TCGV_I64(ret), 2, args);

    tcg_temp_free_ptr(fn);

}

/* 32 bit ops */

static inline void tcg_gen_ld8u_i32(TCGv_i32 ret, TCGv_ptr arg2, tcg_target_long offset)

{

    tcg_gen_ldst_op_i32(INDEX_op_ld8u_i32, ret, arg2, offset);

}

static inline void tcg_gen_ld8s_i32(TCGv_i32 ret, TCGv_ptr arg2, tcg_target_long offset)

{

    tcg_gen_ldst_op_i32(INDEX_op_ld8s_i32, ret, arg2, offset);

}

static inline void tcg_gen_ld16u_i32(TCGv_i32 ret, TCGv_ptr arg2, tcg_target_long offset)

{

    tcg_gen_ldst_op_i32(INDEX_op_ld16u_i32, ret, arg2, offset);

}

static inline void tcg_gen_ld16s_i32(TCGv_i32 ret, TCGv_ptr arg2, tcg_target_long offset)

{

    tcg_gen_ldst_op_i32(INDEX_op_ld16s_i32, ret, arg2, offset);

}

static inline void tcg_gen_ld_i32(TCGv_i32 ret, TCGv_ptr arg2, tcg_target_long offset)

{

    tcg_gen_ldst_op_i32(INDEX_op_ld_i32, ret, arg2, offset);

}

static inline void tcg_gen_st8_i32(TCGv_i32 arg1, TCGv_ptr arg2, tcg_target_long offset)

{

    tcg_gen_ldst_op_i32(INDEX_op_st8_i32, arg1, arg2, offset);

}

static inline void tcg_gen_st16_i32(TCGv_i32 arg1, TCGv_ptr arg2, tcg_target_long offset)

{

    tcg_gen_ldst_op_i32(INDEX_op_st16_i32, arg1, arg2, offset);

}

static inline void tcg_gen_st_i32(TCGv_i32 arg1, TCGv_ptr arg2, tcg_target_long offset)

{

    tcg_gen_ldst_op_i32(INDEX_op_st_i32, arg1, arg2, offset);

}

static inline void tcg_gen_add_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)

{

    tcg_gen_op3_i32(INDEX_op_add_i32, ret, arg1, arg2);

}

static inline void tcg_gen_addi_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)

{

    /* some cases can be optimized here */

    if (arg2 == 0) {

        tcg_gen_mov_i32(ret, arg1);

    } else {

        TCGv_i32 t0 = tcg_const_i32(arg2);

        tcg_gen_add_i32(ret, arg1, t0);

        tcg_temp_free_i32(t0);

    }

}

static inline void tcg_gen_sub_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)

{

    tcg_gen_op3_i32(INDEX_op_sub_i32, ret, arg1, arg2);

}

static inline void tcg_gen_subfi_i32(TCGv_i32 ret, int32_t arg1, TCGv_i32 arg2)

{

    TCGv_i32 t0 = tcg_const_i32(arg1);

    tcg_gen_sub_i32(ret, t0, arg2);

    tcg_temp_free_i32(t0);

}

static inline void tcg_gen_subi_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)

{

    /* some cases can be optimized here */

    if (arg2 == 0) {

        tcg_gen_mov_i32(ret, arg1);

    } else {

        TCGv_i32 t0 = tcg_const_i32(arg2);

        tcg_gen_sub_i32(ret, arg1, t0);

        tcg_temp_free_i32(t0);

    }

}

static inline void tcg_gen_and_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)

{

    tcg_gen_op3_i32(INDEX_op_and_i32, ret, arg1, arg2);

}

static inline void tcg_gen_andi_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)

{

    /* some cases can be optimized here */

    if (arg2 == 0) {

        tcg_gen_movi_i32(ret, 0);

    } else if (arg2 == 0xffffffff) {

        tcg_gen_mov_i32(ret, arg1);

    } else {

        TCGv_i32 t0 = tcg_const_i32(arg2);

        tcg_gen_and_i32(ret, arg1, t0);

        tcg_temp_free_i32(t0);

    }

}

static inline void tcg_gen_or_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)

{

    tcg_gen_op3_i32(INDEX_op_or_i32, ret, arg1, arg2);

}

static inline void tcg_gen_ori_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)

{

    /* some cases can be optimized here */

    if (arg2 == 0xffffffff) {

        tcg_gen_movi_i32(ret, 0xffffffff);

    } else if (arg2 == 0) {

        tcg_gen_mov_i32(ret, arg1);

    } else {

        TCGv_i32 t0 = tcg_const_i32(arg2);

        tcg_gen_or_i32(ret, arg1, t0);

        tcg_temp_free_i32(t0);

    }

}

static inline void tcg_gen_xor_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)

{

    tcg_gen_op3_i32(INDEX_op_xor_i32, ret, arg1, arg2);

}

static inline void tcg_gen_xori_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)

{

    /* some cases can be optimized here */

    if (arg2 == 0) {

        tcg_gen_mov_i32(ret, arg1);

    } else {

        TCGv_i32 t0 = tcg_const_i32(arg2);

        tcg_gen_xor_i32(ret, arg1, t0);

        tcg_temp_free_i32(t0);

    }

}

static inline void tcg_gen_shl_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)

{

    tcg_gen_op3_i32(INDEX_op_shl_i32, ret, arg1, arg2);

}

static inline void tcg_gen_shli_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)

{

    if (arg2 == 0) {

        tcg_gen_mov_i32(ret, arg1);

    } else {

        TCGv_i32 t0 = tcg_const_i32(arg2);

        tcg_gen_shl_i32(ret, arg1, t0);

        tcg_temp_free_i32(t0);

    }

}

static inline void tcg_gen_shr_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)

{

    tcg_gen_op3_i32(INDEX_op_shr_i32, ret, arg1, arg2);

}

static inline void tcg_gen_shri_i32(TCGv_i32 ret, TCGv_i32 arg1, int32_t arg2)

{

    if (arg2 == 0) {

        tcg_gen_mov_i32(ret, arg1);

    } else {

        TCGv_i32 t0 = tcg_const_i32(arg2);

        tcg_gen_shr_i32(ret, arg1, t0);

        tcg_temp_free_i32(t0);

    }

}

static inline void tcg_gen_sar_i32(TCGv_i32 ret, TCGv_i32 arg1, TCGv_i32 arg2)

{

    tcg_gen_op3_i32(INDEX_op_sar_i32, ret, arg1, arg2);

}