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 #define TCG_TARGET_INSN_UNIT_SIZE 4
  29 #define TCG_TARGET_NB_REGS 32
  30 #define MAX_CODE_GEN_BUFFER_SIZE  ((size_t)-1)
  31
  32 typedef enum {
  33     TCG_REG_ZERO,
  34     TCG_REG_RA,
  35     TCG_REG_SP,
  36     TCG_REG_GP,
  37     TCG_REG_TP,
  38     TCG_REG_T0,
  39     TCG_REG_T1,
  40     TCG_REG_T2,
  41     TCG_REG_S0,
  42     TCG_REG_S1,
  43     TCG_REG_A0,
  44     TCG_REG_A1,
  45     TCG_REG_A2,
  46     TCG_REG_A3,
  47     TCG_REG_A4,
  48     TCG_REG_A5,
  49     TCG_REG_A6,
  50     TCG_REG_A7,
  51     TCG_REG_S2,
  52     TCG_REG_S3,
  53     TCG_REG_S4,
  54     TCG_REG_S5,
  55     TCG_REG_S6,
  56     TCG_REG_S7,
  57     TCG_REG_S8,
  58     TCG_REG_S9,
  59     TCG_REG_S10,
  60     TCG_REG_S11,
  61     TCG_REG_T3,
  62     TCG_REG_T4,
  63     TCG_REG_T5,
  64     TCG_REG_T6,
  65
  66     /* aliases */
  67     TCG_AREG0          = TCG_REG_S0,
  68     TCG_GUEST_BASE_REG = TCG_REG_S1,
  69     TCG_REG_TMP0       = TCG_REG_T6,
  70     TCG_REG_TMP1       = TCG_REG_T5,
  71     TCG_REG_TMP2       = TCG_REG_T4,
  72 } TCGReg;
  73
  74 /* used for function call generation */
  75 #define TCG_REG_CALL_STACK              TCG_REG_SP
  76 #define TCG_TARGET_STACK_ALIGN          16
  77 #define TCG_TARGET_CALL_STACK_OFFSET    0
  78 #define TCG_TARGET_CALL_ARG_I32         TCG_CALL_ARG_NORMAL
  79 #define TCG_TARGET_CALL_ARG_I64         TCG_CALL_ARG_NORMAL
  80 #define TCG_TARGET_CALL_ARG_I128        TCG_CALL_ARG_NORMAL
  81 #define TCG_TARGET_CALL_RET_I128        TCG_CALL_RET_NORMAL
  82
  83 #if defined(__riscv_arch_test) && defined(__riscv_zbb)
  84 # define have_zbb true
  85 #else
  86 extern bool have_zbb;
  87 #endif
  88
  89 /* optional instructions */
  90 #define TCG_TARGET_HAS_negsetcond_i32   1
  91 #define TCG_TARGET_HAS_div_i32          1
  92 #define TCG_TARGET_HAS_rem_i32          1
  93 #define TCG_TARGET_HAS_div2_i32         0
  94 #define TCG_TARGET_HAS_rot_i32          have_zbb
  95 #define TCG_TARGET_HAS_deposit_i32      0
  96 #define TCG_TARGET_HAS_extract_i32      0
  97 #define TCG_TARGET_HAS_sextract_i32     0
  98 #define TCG_TARGET_HAS_extract2_i32     0
  99 #define TCG_TARGET_HAS_add2_i32         1
 100 #define TCG_TARGET_HAS_sub2_i32         1
 101 #define TCG_TARGET_HAS_mulu2_i32        0
 102 #define TCG_TARGET_HAS_muls2_i32        0
 103 #define TCG_TARGET_HAS_muluh_i32        0
 104 #define TCG_TARGET_HAS_mulsh_i32        0
 105 #define TCG_TARGET_HAS_ext8s_i32        1
 106 #define TCG_TARGET_HAS_ext16s_i32       1
 107 #define TCG_TARGET_HAS_ext8u_i32        1
 108 #define TCG_TARGET_HAS_ext16u_i32       1
 109 #define TCG_TARGET_HAS_bswap16_i32      have_zbb
 110 #define TCG_TARGET_HAS_bswap32_i32      have_zbb
 111 #define TCG_TARGET_HAS_not_i32          1
 112 #define TCG_TARGET_HAS_andc_i32         have_zbb
 113 #define TCG_TARGET_HAS_orc_i32          have_zbb
 114 #define TCG_TARGET_HAS_eqv_i32          have_zbb
 115 #define TCG_TARGET_HAS_nand_i32         0
 116 #define TCG_TARGET_HAS_nor_i32          0
 117 #define TCG_TARGET_HAS_clz_i32          have_zbb
 118 #define TCG_TARGET_HAS_ctz_i32          have_zbb
 119 #define TCG_TARGET_HAS_ctpop_i32        have_zbb
 120 #define TCG_TARGET_HAS_brcond2          1
 121 #define TCG_TARGET_HAS_setcond2         1
 122 #define TCG_TARGET_HAS_qemu_st8_i32     0
 123
 124 #define TCG_TARGET_HAS_negsetcond_i64   1
 125 #define TCG_TARGET_HAS_div_i64          1
 126 #define TCG_TARGET_HAS_rem_i64          1
 127 #define TCG_TARGET_HAS_div2_i64         0
 128 #define TCG_TARGET_HAS_rot_i64          have_zbb
 129 #define TCG_TARGET_HAS_deposit_i64      0
 130 #define TCG_TARGET_HAS_extract_i64      0
 131 #define TCG_TARGET_HAS_sextract_i64     0
 132 #define TCG_TARGET_HAS_extract2_i64     0
 133 #define TCG_TARGET_HAS_extr_i64_i32     1
 134 #define TCG_TARGET_HAS_ext8s_i64        1
 135 #define TCG_TARGET_HAS_ext16s_i64       1
 136 #define TCG_TARGET_HAS_ext32s_i64       1
 137 #define TCG_TARGET_HAS_ext8u_i64        1
 138 #define TCG_TARGET_HAS_ext16u_i64       1
 139 #define TCG_TARGET_HAS_ext32u_i64       1
 140 #define TCG_TARGET_HAS_bswap16_i64      have_zbb
 141 #define TCG_TARGET_HAS_bswap32_i64      have_zbb
 142 #define TCG_TARGET_HAS_bswap64_i64      have_zbb
 143 #define TCG_TARGET_HAS_not_i64          1
 144 #define TCG_TARGET_HAS_andc_i64         have_zbb
 145 #define TCG_TARGET_HAS_orc_i64          have_zbb
 146 #define TCG_TARGET_HAS_eqv_i64          have_zbb
 147 #define TCG_TARGET_HAS_nand_i64         0
 148 #define TCG_TARGET_HAS_nor_i64          0
 149 #define TCG_TARGET_HAS_clz_i64          have_zbb
 150 #define TCG_TARGET_HAS_ctz_i64          have_zbb
 151 #define TCG_TARGET_HAS_ctpop_i64        have_zbb
 152 #define TCG_TARGET_HAS_add2_i64         1
 153 #define TCG_TARGET_HAS_sub2_i64         1
 154 #define TCG_TARGET_HAS_mulu2_i64        0
 155 #define TCG_TARGET_HAS_muls2_i64        0
 156 #define TCG_TARGET_HAS_muluh_i64        1
 157 #define TCG_TARGET_HAS_mulsh_i64        1
 158
 159 #define TCG_TARGET_HAS_qemu_ldst_i128   0
 160
 161 #define TCG_TARGET_HAS_tst              0
 162
 163 #define TCG_TARGET_DEFAULT_MO (0)
 164
 165 #define TCG_TARGET_NEED_LDST_LABELS
 166 #define TCG_TARGET_NEED_POOL_LABELS
 167
 168 #endif