tcg/riscv/tcg-target.h

   1 /*
   2  * Tiny Code Generator for QEMU
   3  *
   4  * Copyright (c) 2018 SiFive, Inc
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 #ifndef RISCV_TCG_TARGET_H
  26 #define RISCV_TCG_TARGET_H
  27
  28 #if __riscv_xlen == 32
  29 # define TCG_TARGET_REG_BITS 32
  30 #elif __riscv_xlen == 64
  31 # define TCG_TARGET_REG_BITS 64
  32 #endif
  33
  34 #define TCG_TARGET_INSN_UNIT_SIZE 4
  35 #define TCG_TARGET_TLB_DISPLACEMENT_BITS 20
  36 #define TCG_TARGET_NB_REGS 32
  37 #define MAX_CODE_GEN_BUFFER_SIZE  ((size_t)-1)
  38
  39 typedef enum {
  40     TCG_REG_ZERO,
  41     TCG_REG_RA,
  42     TCG_REG_SP,
  43     TCG_REG_GP,
  44     TCG_REG_TP,
  45     TCG_REG_T0,
  46     TCG_REG_T1,
  47     TCG_REG_T2,
  48     TCG_REG_S0,
  49     TCG_REG_S1,
  50     TCG_REG_A0,
  51     TCG_REG_A1,
  52     TCG_REG_A2,
  53     TCG_REG_A3,
  54     TCG_REG_A4,
  55     TCG_REG_A5,
  56     TCG_REG_A6,
  57     TCG_REG_A7,
  58     TCG_REG_S2,
  59     TCG_REG_S3,
  60     TCG_REG_S4,
  61     TCG_REG_S5,
  62     TCG_REG_S6,
  63     TCG_REG_S7,
  64     TCG_REG_S8,
  65     TCG_REG_S9,
  66     TCG_REG_S10,
  67     TCG_REG_S11,
  68     TCG_REG_T3,
  69     TCG_REG_T4,
  70     TCG_REG_T5,
  71     TCG_REG_T6,
  72
  73     /* aliases */
  74     TCG_AREG0          = TCG_REG_S0,
  75     TCG_GUEST_BASE_REG = TCG_REG_S1,
  76     TCG_REG_TMP0       = TCG_REG_T6,
  77     TCG_REG_TMP1       = TCG_REG_T5,
  78     TCG_REG_TMP2       = TCG_REG_T4,
  79 } TCGReg;
  80
  81 /* used for function call generation */
  82 #define TCG_REG_CALL_STACK              TCG_REG_SP
  83 #define TCG_TARGET_STACK_ALIGN          16
  84 #define TCG_TARGET_CALL_STACK_OFFSET    0
  85 #define TCG_TARGET_CALL_ARG_I32         TCG_CALL_ARG_NORMAL
  86 #if TCG_TARGET_REG_BITS == 32
  87 #define TCG_TARGET_CALL_ARG_I64         TCG_CALL_ARG_EVEN
  88 #define TCG_TARGET_CALL_ARG_I128        TCG_CALL_ARG_EVEN
  89 #else
  90 #define TCG_TARGET_CALL_ARG_I64         TCG_CALL_ARG_NORMAL
  91 #define TCG_TARGET_CALL_ARG_I128        TCG_CALL_ARG_NORMAL
  92 #endif
  93 #define TCG_TARGET_CALL_RET_I128        TCG_CALL_RET_NORMAL
  94
  95 /* optional instructions */
  96 #define TCG_TARGET_HAS_movcond_i32      0
  97 #define TCG_TARGET_HAS_div_i32          1
  98 #define TCG_TARGET_HAS_rem_i32          1
  99 #define TCG_TARGET_HAS_div2_i32         0
 100 #define TCG_TARGET_HAS_rot_i32          0
 101 #define TCG_TARGET_HAS_deposit_i32      0
 102 #define TCG_TARGET_HAS_extract_i32      0
 103 #define TCG_TARGET_HAS_sextract_i32     0
 104 #define TCG_TARGET_HAS_extract2_i32     0
 105 #define TCG_TARGET_HAS_add2_i32         1
 106 #define TCG_TARGET_HAS_sub2_i32         1
 107 #define TCG_TARGET_HAS_mulu2_i32        0
 108 #define TCG_TARGET_HAS_muls2_i32        0
 109 #define TCG_TARGET_HAS_muluh_i32        (TCG_TARGET_REG_BITS == 32)
 110 #define TCG_TARGET_HAS_mulsh_i32        (TCG_TARGET_REG_BITS == 32)
 111 #define TCG_TARGET_HAS_ext8s_i32        1
 112 #define TCG_TARGET_HAS_ext16s_i32       1
 113 #define TCG_TARGET_HAS_ext8u_i32        1
 114 #define TCG_TARGET_HAS_ext16u_i32       1
 115 #define TCG_TARGET_HAS_bswap16_i32      0
 116 #define TCG_TARGET_HAS_bswap32_i32      0
 117 #define TCG_TARGET_HAS_not_i32          1
 118 #define TCG_TARGET_HAS_neg_i32          1
 119 #define TCG_TARGET_HAS_andc_i32         0
 120 #define TCG_TARGET_HAS_orc_i32          0
 121 #define TCG_TARGET_HAS_eqv_i32          0
 122 #define TCG_TARGET_HAS_nand_i32         0
 123 #define TCG_TARGET_HAS_nor_i32          0
 124 #define TCG_TARGET_HAS_clz_i32          0
 125 #define TCG_TARGET_HAS_ctz_i32          0
 126 #define TCG_TARGET_HAS_ctpop_i32        0
 127 #define TCG_TARGET_HAS_brcond2          1
 128 #define TCG_TARGET_HAS_setcond2         1
 129 #define TCG_TARGET_HAS_qemu_st8_i32     0
 130
 131 #if TCG_TARGET_REG_BITS == 64
 132 #define TCG_TARGET_HAS_movcond_i64      0
 133 #define TCG_TARGET_HAS_div_i64          1
 134 #define TCG_TARGET_HAS_rem_i64          1
 135 #define TCG_TARGET_HAS_div2_i64         0
 136 #define TCG_TARGET_HAS_rot_i64          0
 137 #define TCG_TARGET_HAS_deposit_i64      0
 138 #define TCG_TARGET_HAS_extract_i64      0
 139 #define TCG_TARGET_HAS_sextract_i64     0
 140 #define TCG_TARGET_HAS_extract2_i64     0
 141 #define TCG_TARGET_HAS_extrl_i64_i32    1
 142 #define TCG_TARGET_HAS_extrh_i64_i32    1
 143 #define TCG_TARGET_HAS_ext8s_i64        1
 144 #define TCG_TARGET_HAS_ext16s_i64       1
 145 #define TCG_TARGET_HAS_ext32s_i64       1
 146 #define TCG_TARGET_HAS_ext8u_i64        1
 147 #define TCG_TARGET_HAS_ext16u_i64       1
 148 #define TCG_TARGET_HAS_ext32u_i64       1
 149 #define TCG_TARGET_HAS_bswap16_i64      0
 150 #define TCG_TARGET_HAS_bswap32_i64      0
 151 #define TCG_TARGET_HAS_bswap64_i64      0
 152 #define TCG_TARGET_HAS_not_i64          1
 153 #define TCG_TARGET_HAS_neg_i64          1
 154 #define TCG_TARGET_HAS_andc_i64         0
 155 #define TCG_TARGET_HAS_orc_i64          0
 156 #define TCG_TARGET_HAS_eqv_i64          0
 157 #define TCG_TARGET_HAS_nand_i64         0
 158 #define TCG_TARGET_HAS_nor_i64          0
 159 #define TCG_TARGET_HAS_clz_i64          0
 160 #define TCG_TARGET_HAS_ctz_i64          0
 161 #define TCG_TARGET_HAS_ctpop_i64        0
 162 #define TCG_TARGET_HAS_add2_i64         1
 163 #define TCG_TARGET_HAS_sub2_i64         1
 164 #define TCG_TARGET_HAS_mulu2_i64        0
 165 #define TCG_TARGET_HAS_muls2_i64        0
 166 #define TCG_TARGET_HAS_muluh_i64        1
 167 #define TCG_TARGET_HAS_mulsh_i64        1
 168 #endif
 169
 170 #define TCG_TARGET_DEFAULT_MO (0)
 171
 172 #define TCG_TARGET_NEED_LDST_LABELS
 173 #define TCG_TARGET_NEED_POOL_LABELS
 174
 175 #define TCG_TARGET_HAS_MEMORY_BSWAP 0
 176
 177 #endif