path: root/opcodes/riscv-opc.c

/* RISC-V opcode list
   Copyright (C) 2011-2021 Free Software Foundation, Inc.

   Contributed by Andrew Waterman (andrew@sifive.com).
   Based on MIPS target.

   This file is part of the GNU opcodes library.

   This library is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3, or (at your option)
   any later version.

   It is distributed in the hope that it will be useful, but WITHOUT
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
   License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; see the file COPYING3. If not,
   see <http://www.gnu.org/licenses/>.  */

#include "sysdep.h"
#include "opcode/riscv.h"
#include <stdio.h>

/* Register names used by gas and objdump.  */

const char * const riscv_gpr_names_numeric[NGPR] =
{
  "x0",   "x1",   "x2",   "x3",   "x4",   "x5",   "x6",   "x7",
  "x8",   "x9",   "x10",  "x11",  "x12",  "x13",  "x14",  "x15",
  "x16",  "x17",  "x18",  "x19",  "x20",  "x21",  "x22",  "x23",
  "x24",  "x25",  "x26",  "x27",  "x28",  "x29",  "x30",  "x31"
};

const char * const riscv_gpr_names_abi[NGPR] =
{
  "zero", "ra",   "sp",   "gp",   "tp",   "t0",   "t1",   "t2",
  "s0",   "s1",   "a0",   "a1",   "a2",   "a3",   "a4",   "a5",
  "a6",   "a7",   "s2",   "s3",   "s4",   "s5",   "s6",   "s7",
  "s8",   "s9",   "s10",  "s11",  "t3",   "t4",   "t5",   "t6"
};

const char * const riscv_fpr_names_numeric[NFPR] =
{
  "f0",   "f1",   "f2",   "f3",   "f4",   "f5",   "f6",   "f7",
  "f8",   "f9",   "f10",  "f11",  "f12",  "f13",  "f14",  "f15",
  "f16",  "f17",  "f18",  "f19",  "f20",  "f21",  "f22",  "f23",
  "f24",  "f25",  "f26",  "f27",  "f28",  "f29",  "f30",  "f31"
};

const char * const riscv_fpr_names_abi[NFPR] =
{
  "ft0",  "ft1",  "ft2",  "ft3",  "ft4",  "ft5",  "ft6",  "ft7",
  "fs0",  "fs1",  "fa0",  "fa1",  "fa2",  "fa3",  "fa4",  "fa5",
  "fa6",  "fa7",  "fs2",  "fs3",  "fs4",  "fs5",  "fs6",  "fs7",
  "fs8",  "fs9",  "fs10", "fs11", "ft8",  "ft9",  "ft10", "ft11"
};

/* The order of overloaded instructions matters.  Label arguments and
   register arguments look the same. Instructions that can have either
   for arguments must apear in the correct order in this table for the
   assembler to pick the right one. In other words, entries with
   immediate operands must apear after the same instruction with
   registers.

   Because of the lookup algorithm used, entries with the same opcode
   name must be contiguous.  */

#define MASK_RS1 (OP_MASK_RS1 << OP_SH_RS1)
#define MASK_RS2 (OP_MASK_RS2 << OP_SH_RS2)
#define MASK_RD (OP_MASK_RD << OP_SH_RD)
#define MASK_CRS2 (OP_MASK_CRS2 << OP_SH_CRS2)
#define MASK_IMM ENCODE_ITYPE_IMM (-1U)
#define MASK_RVC_IMM ENCODE_RVC_IMM (-1U)
#define MASK_UIMM ENCODE_UTYPE_IMM (-1U)
#define MASK_RM (OP_MASK_RM << OP_SH_RM)
#define MASK_PRED (OP_MASK_PRED << OP_SH_PRED)
#define MASK_SUCC (OP_MASK_SUCC << OP_SH_SUCC)
#define MASK_AQ (OP_MASK_AQ << OP_SH_AQ)
#define MASK_RL (OP_MASK_RL << OP_SH_RL)
#define MASK_AQRL (MASK_AQ | MASK_RL)

static int
match_opcode (const struct riscv_opcode *op, insn_t insn)
{
  return ((insn ^ op->match) & op->mask) == 0;
}

static int
match_never (const struct riscv_opcode *op ATTRIBUTE_UNUSED,
	     insn_t insn ATTRIBUTE_UNUSED)
{
  return 0;
}

static int
match_rs1_eq_rs2 (const struct riscv_opcode *op, insn_t insn)
{
  int rs1 = (insn & MASK_RS1) >> OP_SH_RS1;
  int rs2 = (insn & MASK_RS2) >> OP_SH_RS2;
  return match_opcode (op, insn) && rs1 == rs2;
}

static int
match_rd_nonzero (const struct riscv_opcode *op, insn_t insn)
{
  return match_opcode (op, insn) && ((insn & MASK_RD) != 0);
}

static int
match_c_add (const struct riscv_opcode *op, insn_t insn)
{
  return match_rd_nonzero (op, insn) && ((insn & MASK_CRS2) != 0);
}

/* We don't allow mv zero,X to become a c.mv hint, so we need a separate
   matching function for this.  */

static int
match_c_add_with_hint (const struct riscv_opcode *op, insn_t insn)
{
  return match_opcode (op, insn) && ((insn & MASK_CRS2) != 0);
}

static int
match_c_nop (const struct riscv_opcode *op, insn_t insn)
{
  return (match_opcode (op, insn)
	  && (((insn & MASK_RD) >> OP_SH_RD) == 0));
}

static int
match_c_addi16sp (const struct riscv_opcode *op, insn_t insn)
{
  return (match_opcode (op, insn)
	  && (((insn & MASK_RD) >> OP_SH_RD) == 2)
	  && EXTRACT_RVC_ADDI16SP_IMM (insn) != 0);
}

static int
match_c_lui (const struct riscv_opcode *op, insn_t insn)
{
  return (match_rd_nonzero (op, insn)
	  && (((insn & MASK_RD) >> OP_SH_RD) != 2)
	  && EXTRACT_RVC_LUI_IMM (insn) != 0);
}

/* We don't allow lui zero,X to become a c.lui hint, so we need a separate
   matching function for this.  */

static int
match_c_lui_with_hint (const struct riscv_opcode *op, insn_t insn)
{
  return (match_opcode (op, insn)
	  && (((insn & MASK_RD) >> OP_SH_RD) != 2)
	  && EXTRACT_RVC_LUI_IMM (insn) != 0);
}

static int
match_c_addi4spn (const struct riscv_opcode *op, insn_t insn)
{
  return match_opcode (op, insn) && EXTRACT_RVC_ADDI4SPN_IMM (insn) != 0;
}

/* This requires a non-zero shift.  A zero rd is a hint, so is allowed.  */

static int
match_c_slli (const struct riscv_opcode *op, insn_t insn)
{
  return match_opcode (op, insn) && EXTRACT_RVC_IMM (insn) != 0;
}

/* This requires a non-zero rd, and a non-zero shift.  */

static int
match_slli_as_c_slli (const struct riscv_opcode *op, insn_t insn)
{
  return match_rd_nonzero (op, insn) && EXTRACT_RVC_IMM (insn) != 0;
}

/* This requires a zero shift.  A zero rd is a hint, so is allowed.  */

static int
match_c_slli64 (const struct riscv_opcode *op, insn_t insn)
{
  return match_opcode (op, insn) && EXTRACT_RVC_IMM (insn) == 0;
}

/* This is used for both srli and srai.  This requires a non-zero shift.
   A zero rd is not possible.  */

static int
match_srxi_as_c_srxi (const struct riscv_opcode *op, insn_t insn)
{
  return match_opcode (op, insn) && EXTRACT_RVC_IMM (insn) != 0;
}

const struct riscv_opcode riscv_opcodes[] =
{
/* name, xlen, isa, operands, match, mask, match_func, pinfo.  */
{"unimp",       0, INSN_CLASS_C, "",          0, 0xffffU, match_opcode, INSN_ALIAS },
{"unimp",       0, INSN_CLASS_I, "",          MATCH_CSRRW|(CSR_CYCLE << OP_SH_CSR), 0xffffffffU,  match_opcode, 0 }, /* csrw cycle, x0  */
{"ebreak",      0, INSN_CLASS_C, "",          MATCH_C_EBREAK, MASK_C_EBREAK, match_opcode, INSN_ALIAS },
{"ebreak",      0, INSN_CLASS_I, "",          MATCH_EBREAK, MASK_EBREAK, match_opcode, 0 },
{"sbreak",      0, INSN_CLASS_C, "",          MATCH_C_EBREAK, MASK_C_EBREAK, match_opcode, INSN_ALIAS },
{"sbreak",      0, INSN_CLASS_I, "",          MATCH_EBREAK, MASK_EBREAK, match_opcode, INSN_ALIAS },
{"ret",         0, INSN_CLASS_C, "",          MATCH_C_JR|(X_RA << OP_SH_RD), MASK_C_JR|MASK_RD, match_opcode, INSN_ALIAS|INSN_BRANCH },
{"ret",         0, INSN_CLASS_I, "",          MATCH_JALR|(X_RA << OP_SH_RS1), MASK_JALR|MASK_RD|MASK_RS1|MASK_IMM, match_opcode, INSN_ALIAS|INSN_BRANCH },
{"jr",          0, INSN_CLASS_C, "d",         MATCH_C_JR, MASK_C_JR, match_rd_nonzero, INSN_ALIAS|INSN_BRANCH },
{"jr",          0, INSN_CLASS_I, "s",         MATCH_JALR, MASK_JALR|MASK_RD|MASK_IMM, match_opcode, INSN_ALIAS|INSN_BRANCH },
{"jr",          0, INSN_CLASS_I, "o(s)",      MATCH_JALR, MASK_JALR|MASK_RD, match_opcode, INSN_ALIAS|INSN_BRANCH },
{"jr",          0, INSN_CLASS_I, "s,j",       MATCH_JALR, MASK_JALR|MASK_RD, match_opcode, INSN_ALIAS|INSN_BRANCH },
{"jalr",        0, INSN_CLASS_C, "d",         MATCH_C_JALR, MASK_C_JALR, match_rd_nonzero, INSN_ALIAS|INSN_JSR },
{"jalr",        0, INSN_CLASS_I, "s",         MATCH_JALR|(X_RA << OP_SH_RD), MASK_JALR|MASK_RD|MASK_IMM, match_opcode, INSN_ALIAS|INSN_JSR },
{"jalr",        0, INSN_CLASS_I, "o(s)",      MATCH_JALR|(X_RA << OP_SH_RD), MASK_JALR|MASK_RD, match_opcode, INSN_ALIAS|INSN_JSR },
{"jalr",        0, INSN_CLASS_I, "s,j",       MATCH_JALR|(X_RA << OP_SH_RD), MASK_JALR|MASK_RD, match_opcode, INSN_ALIAS|INSN_JSR },
{"jalr",        0, INSN_CLASS_I, "d,s",       MATCH_JALR, MASK_JALR|MASK_IMM, match_opcode, INSN_ALIAS|INSN_JSR },
{"jalr",        0, INSN_CLASS_I, "d,o(s)",    MATCH_JALR, MASK_JALR, match_opcode, INSN_JSR },
{"jalr",        0, INSN_CLASS_I, "d,s,j",     MATCH_JALR, MASK_JALR, match_opcode, INSN_JSR },
{"j",           0, INSN_CLASS_C, "Ca",        MATCH_C_J, MASK_C_J, match_opcode, INSN_ALIAS|INSN_BRANCH },
{"j",           0, INSN_CLASS_I, "a",         MATCH_JAL, MASK_JAL|MASK_RD, match_opcode, INSN_ALIAS|INSN_BRANCH },
{"jal",         0, INSN_CLASS_I, "d,a",       MATCH_JAL, MASK_JAL, match_opcode, INSN_JSR },
{"jal",        32, INSN_CLASS_C, "Ca",        MATCH_C_JAL, MASK_C_JAL, match_opcode, INSN_ALIAS|INSN_JSR },
{"jal",         0, INSN_CLASS_I, "a",         MATCH_JAL|(X_RA << OP_SH_RD), MASK_JAL|MASK_RD, match_opcode, INSN_ALIAS|INSN_JSR },
{"call",        0, INSN_CLASS_I, "d,c",       (X_T1 << OP_SH_RS1), (int) M_CALL, match_never, INSN_MACRO },
{"call",        0, INSN_CLASS_I, "c",         (X_RA << OP_SH_RS1)|(X_RA << OP_SH_RD), (int) M_CALL, match_never, INSN_MACRO },
{"tail",        0, INSN_CLASS_I, "c",         (X_T1 << OP_SH_RS1), (int) M_CALL, match_never, INSN_MACRO },
{"jump",        0, INSN_CLASS_I, "c,s",       0, (int) M_CALL, match_never, INSN_MACRO },
{"nop",         0, INSN_CLASS_C, "",          MATCH_C_ADDI, 0xffff, match_opcode, INSN_ALIAS },
{"nop",         0, INSN_CLASS_I, "",          MATCH_ADDI, MASK_ADDI|MASK_RD|MASK_RS1|MASK_IMM, match_opcode, INSN_ALIAS },
{"lui",         0, INSN_CLASS_C, "d,Cu",      MATCH_C_LUI, MASK_C_LUI, match_c_lui, INSN_ALIAS },
{"lui",         0, INSN_CLASS_I, "d,u",       MATCH_LUI, MASK_LUI, match_opcode, 0 },
{"li",          0, INSN_CLASS_C, "d,Cv",      MATCH_C_LUI, MASK_C_LUI, match_c_lui, INSN_ALIAS },
{"li",          0, INSN_CLASS_C, "d,Co",      MATCH_C_LI, MASK_C_LI, match_rd_nonzero, INSN_ALIAS },
{"li",          0, INSN_CLASS_I, "d,j",       MATCH_ADDI, MASK_ADDI|MASK_RS1, match_opcode, INSN_ALIAS }, /* addi  */
{"li",          0, INSN_CLASS_I, "d,I",       0, (int) M_LI,  match_never, INSN_MACRO },
{"mv",          0, INSN_CLASS_C, "d,CV",      MATCH_C_MV, MASK_C_MV, match_c_add, INSN_ALIAS },
{"mv",          0, INSN_CLASS_I, "d,s",       MATCH_ADDI, MASK_ADDI|MASK_IMM, match_opcode, INSN_ALIAS },
{"move",        0, INSN_CLASS_C, "d,CV",      MATCH_C_MV, MASK_C_MV, match_c_add, INSN_ALIAS },
{"move",        0, INSN_CLASS_I, "d,s",       MATCH_ADDI, MASK_ADDI|MASK_IMM, match_opcode, INSN_ALIAS },
{"sext.b",      0, INSN_CLASS_I, "d,s",       0, (int) M_SEXTB, match_never, INSN_MACRO },
{"sext.h",      0, INSN_CLASS_I, "d,s",       0, (int) M_SEXTH, match_never, INSN_MACRO },
{"zext.b",      0, INSN_CLASS_I, "d,s",       MATCH_ANDI|ENCODE_ITYPE_IMM (255), MASK_ANDI | MASK_IMM, match_opcode, INSN_ALIAS },
{"zext.h",      0, INSN_CLASS_I, "d,s",       0, (int) M_ZEXTH, match_never, INSN_MACRO },
{"andi",        0, INSN_CLASS_C, "Cs,Cw,Co",  MATCH_C_ANDI, MASK_C_ANDI, match_opcode, INSN_ALIAS },
{"andi",        0, INSN_CLASS_I, "d,s,j",     MATCH_ANDI, MASK_ANDI, match_opcode, 0 },
{"and",         0, INSN_CLASS_C, "Cs,Cw,Ct",  MATCH_C_AND, MASK_C_AND, match_opcode, INSN_ALIAS },
{"and",         0, INSN_CLASS_C, "Cs,Ct,Cw",  MATCH_C_AND, MASK_C_AND, match_opcode, INSN_ALIAS },
{"and",         0, INSN_CLASS_C, "Cs,Cw,Co",  MATCH_C_ANDI, MASK_C_ANDI, match_opcode, INSN_ALIAS },
{"and",         0, INSN_CLASS_I, "d,s,t",     MATCH_AND, MASK_AND, match_opcode, 0 },
{"and",         0, INSN_CLASS_I, "d,s,j",     MATCH_ANDI, MASK_ANDI, match_opcode, INSN_ALIAS },
{"beqz",        0, INSN_CLASS_C, "Cs,Cp",     MATCH_C_BEQZ, MASK_C_BEQZ, match_opcode, INSN_ALIAS|INSN_CONDBRANCH },
{"beqz",        0, INSN_CLASS_I, "s,p",       MATCH_BEQ, MASK_BEQ|MASK_RS2, match_opcode, INSN_ALIAS|INSN_CONDBRANCH },
{"beq",         0, INSN_CLASS_C, "Cs,Cz,Cp",  MATCH_C_BEQZ, MASK_C_BEQZ, match_opcode, INSN_ALIAS|INSN_CONDBRANCH },
{"beq",         0, INSN_CLASS_I, "s,t,p",     MATCH_BEQ, MASK_BEQ, match_opcode, INSN_CONDBRANCH },
{"blez",        0, INSN_CLASS_I, "t,p",       MATCH_BGE, MASK_BGE|MASK_RS1, match_opcode, INSN_ALIAS|INSN_CONDBRANCH },
{"bgez",        0, INSN_CLASS_I, "s,p",       MATCH_BGE, MASK_BGE|MASK_RS2, match_opcode, INSN_ALIAS|INSN_CONDBRANCH },
{"bge",         0, INSN_CLASS_I, "s,t,p",     MATCH_BGE, MASK_BGE, match_opcode, INSN_CONDBRANCH },
{"bgeu",        0, INSN_CLASS_I, "s,t,p",     MATCH_BGEU, MASK_BGEU, match_opcode, INSN_CONDBRANCH },
{"ble",         0, INSN_CLASS_I, "t,s,p",     MATCH_BGE, MASK_BGE, match_opcode, INSN_ALIAS|INSN_CONDBRANCH },
{"bleu",        0, INSN_CLASS_I, "t,s,p",     MATCH_BGEU, MASK_BGEU, match_opcode, INSN_ALIAS|INSN_CONDBRANCH },
{"bltz",        0, INSN_CLASS_I, "s,p",       MATCH_BLT, MASK_BLT|MASK_RS2, match_opcode, INSN_ALIAS|INSN_CONDBRANCH },
{"bgtz",        0, INSN_CLASS_I, "t,p",       MATCH_BLT, MASK_BLT|MASK_RS1, match_opcode, INSN_ALIAS|INSN_CONDBRANCH },
{"blt",         0, INSN_CLASS_I, "s,t,p",     MATCH_BLT, MASK_BLT, match_opcode, INSN_CONDBRANCH },
{"bltu",        0, INSN_CLASS_I, "s,t,p",     MATCH_BLTU, MASK_BLTU, match_opcode, INSN_CONDBRANCH },
{"bgt",         0, INSN_CLASS_I, "t,s,p",     MATCH_BLT, MASK_BLT, match_opcode, INSN_ALIAS|INSN_CONDBRANCH },
{"bgtu",        0, INSN_CLASS_I, "t,s,p",     MATCH_BLTU, MASK_BLTU, match_opcode, INSN_ALIAS|INSN_CONDBRANCH },
{"bnez",        0, INSN_CLASS_C, "Cs,Cp",     MATCH_C_BNEZ, MASK_C_BNEZ, match_opcode, INSN_ALIAS|INSN_CONDBRANCH },
{"bnez",        0, INSN_CLASS_I, "s,p",       MATCH_BNE, MASK_BNE|MASK_RS2, match_opcode, INSN_ALIAS|INSN_CONDBRANCH },
{"bne",         0, INSN_CLASS_C, "Cs,Cz,Cp",  MATCH_C_BNEZ, MASK_C_BNEZ, match_opcode, INSN_ALIAS|INSN_CONDBRANCH },
{"bne",         0, INSN_CLASS_I, "s,t,p",     MATCH_BNE, MASK_BNE, match_opcode, INSN_CONDBRANCH },
{"addi",        0, INSN_CLASS_C, "Ct,Cc,CK",  MATCH_C_ADDI4SPN, MASK_C_ADDI4SPN, match_c_addi4spn, INSN_ALIAS },
{"addi",        0, INSN_CLASS_C, "d,CU,Cj",   MATCH_C_ADDI, MASK_C_ADDI, match_rd_nonzero, INSN_ALIAS },
{"addi",        0, INSN_CLASS_C, "d,CU,z",    MATCH_C_NOP, MASK_C_ADDI|MASK_RVC_IMM, match_c_nop, INSN_ALIAS },
{"addi",        0, INSN_CLASS_C, "Cc,Cc,CL",  MATCH_C_ADDI16SP, MASK_C_ADDI16SP, match_c_addi16sp, INSN_ALIAS },
{"addi",        0, INSN_CLASS_C, "d,Cz,Co",   MATCH_C_LI, MASK_C_LI, match_rd_nonzero, INSN_ALIAS },
{"addi",        0, INSN_CLASS_I, "d,s,j",     MATCH_ADDI, MASK_ADDI, match_opcode, 0 },
{"add",         0, INSN_CLASS_C, "d,CU,CV",   MATCH_C_ADD, MASK_C_ADD, match_c_add, INSN_ALIAS },
{"add",         0, INSN_CLASS_C, "d,CV,CU",   MATCH_C_ADD, MASK_C_ADD, match_c_add, INSN_ALIAS },
{"add",         0, INSN_CLASS_C, "d,CU,Co",   MATCH_C_ADDI, MASK_C_ADDI, match_rd_nonzero, INSN_ALIAS },
{"add",         0, INSN_CLASS_C, "Ct,Cc,CK",  MATCH_C_ADDI4SPN, MASK_C_ADDI4SPN, match_c_addi4spn, INSN_ALIAS },
{"add",         0, INSN_CLASS_C, "Cc,Cc,CL",  MATCH_C_ADDI16SP, MASK_C_ADDI16SP, match_c_addi16sp, INSN_ALIAS },
{"add",         0, INSN_CLASS_C, "d,Cz,CV",   MATCH_C_MV, MASK_C_MV, match_c_add, INSN_ALIAS },
{"add",         0, INSN_CLASS_I, "d,s,t",     MATCH_ADD, MASK_ADD, match_opcode, 0 },
{"add",         0, INSN_CLASS_I, "d,s,t,1",   MATCH_ADD, MASK_ADD, match_opcode, 0 },
{"add",         0, INSN_CLASS_I, "d,s,j",     MATCH_ADDI, MASK_ADDI, match_opcode, INSN_ALIAS },
{"la",          0, INSN_CLASS_I, "d,B",       0, (int) M_LA, match_never, INSN_MACRO },
{"lla",         0, INSN_CLASS_I, "d,B",       0, (int) M_LLA, match_never, INSN_MACRO },
{"la.tls.gd",   0, INSN_CLASS_I, "d,A",       0, (int) M_LA_TLS_GD, match_never, INSN_MACRO },
{"la.tls.ie",   0, INSN_CLASS_I, "d,A",       0, (int) M_LA_TLS_IE, match_never, INSN_MACRO },
{"neg",         0, INSN_CLASS_I, "d,t",       MATCH_SUB, MASK_SUB|MASK_RS1, match_opcode, INSN_ALIAS }, /* sub 0  */
{"slli",        0, INSN_CLASS_C, "d,CU,C>",   MATCH_C_SLLI, MASK_C_SLLI, match_slli_as_c_slli, INSN_ALIAS },
{"slli",        0, INSN_CLASS_I, "d,s,>",     MATCH_SLLI, MASK_SLLI, match_opcode, 0 },
{"sll",         0, INSN_CLASS_C, "d,CU,C>",   MATCH_C_SLLI, MASK_C_SLLI, match_slli_as_c_slli, INSN_ALIAS },
{"sll",         0, INSN_CLASS_I, "d,s,t",     MATCH_SLL, MASK_SLL, match_opcode, 0 },
{"sll",         0, INSN_CLASS_I, "d,s,>",     MATCH_SLLI, MASK_SLLI, match_opcode, INSN_ALIAS },
{"srli",        0, INSN_CLASS_C, "Cs,Cw,C>",  MATCH_C_SRLI, MASK_C_SRLI, match_srxi_as_c_srxi, INSN_ALIAS },
{"srli",        0, INSN_CLASS_I, "d,s,>",     MATCH_SRLI, MASK_SRLI, match_opcode, 0 },
{"srl",         0, INSN_CLASS_C, "Cs,Cw,C>",  MATCH_C_SRLI, MASK_C_SRLI, match_srxi_as_c_srxi, INSN_ALIAS },
{"srl",         0, INSN_CLASS_I, "d,s,t",     MATCH_SRL, MASK_SRL, match_opcode, 0 },
{"srl",         0, INSN_CLASS_I, "d,s,>",     MATCH_SRLI, MASK_SRLI, match_opcode, INSN_ALIAS },
{"srai",        0, INSN_CLASS_C, "Cs,Cw,C>",  MATCH_C_SRAI, MASK_C_SRAI, match_srxi_as_c_srxi, INSN_ALIAS },
{"srai",        0, INSN_CLASS_I, "d,s,>",     MATCH_SRAI, MASK_SRAI, match_opcode, 0 },
{"sra",         0, INSN_CLASS_C, "Cs,Cw,C>",  MATCH_C_SRAI, MASK_C_SRAI, match_srxi_as_c_srxi, INSN_ALIAS },
{"sra",         0, INSN_CLASS_I, "d,s,t",     MATCH_SRA, MASK_SRA, match_opcode, 0 },
{"sra",         0, INSN_CLASS_I, "d,s,>",     MATCH_SRAI, MASK_SRAI, match_opcode, INSN_ALIAS },
{"sub",         0, INSN_CLASS_C, "Cs,Cw,Ct",  MATCH_C_SUB, MASK_C_SUB, match_opcode, INSN_ALIAS },
{"sub",         0, INSN_CLASS_I, "d,s,t",     MATCH_SUB, MASK_SUB, match_opcode, 0 },
{"lb",          0, INSN_CLASS_I, "d,o(s)",    MATCH_LB, MASK_LB, match_opcode, INSN_DREF|INSN_1_BYTE },
{"lb",          0, INSN_CLASS_I, "d,A",       0, (int) M_LB, match_never, INSN_MACRO },
{"lbu",         0, INSN_CLASS_I, "d,o(s)",    MATCH_LBU, MASK_LBU, match_opcode, INSN_DREF|INSN_1_BYTE },
{"lbu",         0, INSN_CLASS_I, "d,A",       0, (int) M_LBU, match_never, INSN_MACRO },
{"lh",          0, INSN_CLASS_I, "d,o(s)",    MATCH_LH, MASK_LH, match_opcode, INSN_DREF|INSN_2_BYTE },
{"lh",          0, INSN_CLASS_I, "d,A",       0, (int) M_LH, match_never, INSN_MACRO },
{"lhu",         0, INSN_CLASS_I, "d,o(s)",    MATCH_LHU, MASK_LHU, match_opcode, INSN_DREF|INSN_2_BYTE },
{"lhu",         0, INSN_CLASS_I, "d,A",       0, (int) M_LHU, match_never, INSN_MACRO },
{"lw",          0, INSN_CLASS_C, "d,Cm(Cc)",  MATCH_C_LWSP, MASK_C_LWSP, match_rd_nonzero, INSN_ALIAS|INSN_DREF|INSN_4_BYTE },
{"lw",          0, INSN_CLASS_C, "Ct,Ck(Cs)", MATCH_C_LW, MASK_C_LW, match_opcode, INSN_ALIAS|INSN_DREF|INSN_4_BYTE },
{"lw",          0, INSN_CLASS_I, "d,o(s)",    MATCH_LW, MASK_LW, match_opcode, INSN_DREF|INSN_4_BYTE },
{"lw",          0, INSN_CLASS_I, "d,A",       0, (int) M_LW, match_never, INSN_MACRO },
{"not",         0, INSN_CLASS_I, "d,s",       MATCH_XORI|MASK_IMM, MASK_XORI|MASK_IMM, match_opcode, INSN_ALIAS },
{"ori",         0, INSN_CLASS_I, "d,s,j",     MATCH_ORI, MASK_ORI, match_opcode, 0 },
{"or",          0, INSN_CLASS_C, "Cs,Cw,Ct",  MATCH_C_OR, MASK_C_OR, match_opcode, INSN_ALIAS },
{"or",          0, INSN_CLASS_C, "Cs,Ct,Cw",  MATCH_C_OR, MASK_C_OR, match_opcode, INSN_ALIAS },
{"or",          0, INSN_CLASS_I, "d,s,t",     MATCH_OR, MASK_OR, match_opcode, 0 },
{"or",          0, INSN_CLASS_I, "d,s,j",     MATCH_ORI, MASK_ORI, match_opcode, INSN_ALIAS },
{"auipc",       0, INSN_CLASS_I, "d,u",       MATCH_AUIPC, MASK_AUIPC, match_opcode, 0 },
{"seqz",        0, INSN_CLASS_I, "d,s",       MATCH_SLTIU|ENCODE_ITYPE_IMM (1), MASK_SLTIU | MASK_IMM, match_opcode, INSN_ALIAS },
{"snez",        0, INSN_CLASS_I, "d,t",       MATCH_SLTU, MASK_SLTU|MASK_RS1, match_opcode, INSN_ALIAS },
{"sltz",        0, INSN_CLASS_I, "d,s",       MATCH_SLT, MASK_SLT|MASK_RS2, match_opcode, INSN_ALIAS },
{"sgtz",        0, INSN_CLASS_I, "d,t",       MATCH_SLT, MASK_SLT|MASK_RS1, match_opcode, INSN_ALIAS },
{"slti",        0, INSN_CLASS_I, "d,s,j",     MATCH_SLTI, MASK_SLTI, match_opcode, 0 },
{"slt",         0, INSN_CLASS_I, "d,s,t",     MATCH_SLT, MASK_SLT, match_opcode, 0 },
{"slt",         0, INSN_CLASS_I, "d,s,j",     MATCH_SLTI, MASK_SLTI, match_opcode, INSN_ALIAS },
{"sltiu",       0, INSN_CLASS_I, "d,s,j",     MATCH_SLTIU, MASK_SLTIU, match_opcode, 0 },
{"sltu",        0, INSN_CLASS_I, "d,s,t",     MATCH_SLTU, MASK_SLTU, match_opcode, 0 },
{"sltu",        0, INSN_CLASS_I, "d,s,j",     MATCH_SLTIU, MASK_SLTIU, match_opcode, INSN_ALIAS },
{"sgt",         0, INSN_CLASS_I, "d,t,s",     MATCH_SLT, MASK_SLT, match_opcode, INSN_ALIAS },
{"sgtu",        0, INSN_CLASS_I, "d,t,s",     MATCH_SLTU, MASK_SLTU, match_opcode, INSN_ALIAS },
{"sb",          0, INSN_CLASS_I, "t,q(s)",    MATCH_SB, MASK_SB, match_opcode, INSN_DREF|INSN_1_BYTE },
{"sb",          0, INSN_CLASS_I, "t,A,s",     0, (int) M_SB, match_never, INSN_MACRO },
{"sh",          0, INSN_CLASS_I, "t,q(s)",    MATCH_SH, MASK_SH, match_opcode, INSN_DREF|INSN_2_BYTE },
{"sh",          0, INSN_CLASS_I, "t,A,s",     0, (int) M_SH, match_never, INSN_MACRO },
{"sw",          0, INSN_CLASS_C, "CV,CM(Cc)", MATCH_C_SWSP, MASK_C_SWSP, match_opcode, INSN_ALIAS|INSN_DREF|INSN_4_BYTE },
{"sw",          0, INSN_CLASS_C, "Ct,Ck(Cs)", MATCH_C_SW, MASK_C_SW, match_opcode, INSN_ALIAS|INSN_DREF|INSN_4_BYTE },
{"sw",          0, INSN_CLASS_I, "t,q(s)",    MATCH_SW, MASK_SW, match_opcode, INSN_DREF|INSN_4_BYTE },
{"sw",          0, INSN_CLASS_I, "t,A,s",     0, (int) M_SW, match_never, INSN_MACRO },
{"pause",       0, INSN_CLASS_ZIHINTPAUSE, "",MATCH_PAUSE, MASK_PAUSE, match_opcode, 0 },
{"fence",       0, INSN_CLASS_I, "",          MATCH_FENCE|MASK_PRED|MASK_SUCC, MASK_FENCE|MASK_RD|MASK_RS1|MASK_IMM, match_opcode, INSN_ALIAS },
{"fence",       0, INSN_CLASS_I, "P,Q",       MATCH_FENCE, MASK_FENCE|MASK_RD|MASK_RS1|(MASK_IMM & ~MASK_PRED & ~MASK_SUCC), match_opcode, 0 },
{"fence.i",     0, INSN_CLASS_ZIFENCEI, "",   MATCH_FENCE_I, MASK_FENCE|MASK_RD|MASK_RS1|MASK_IMM, match_opcode, 0 },
{"fence.tso",   0, INSN_CLASS_I, "",          MATCH_FENCE_TSO, MASK_FENCE_TSO|MASK_RD|MASK_RS1, match_opcode, INSN_ALIAS },
{"rdcycle",     0, INSN_CLASS_I, "d",         MATCH_RDCYCLE, MASK_RDCYCLE, match_opcode, INSN_ALIAS },
{"rdinstret",   0, INSN_CLASS_I, "d",         MATCH_RDINSTRET, MASK_RDINSTRET, match_opcode, INSN_ALIAS },
{"rdtime",      0, INSN_CLASS_I, "d",         MATCH_RDTIME, MASK_RDTIME, match_opcode, INSN_ALIAS },
{"rdcycleh",   32, INSN_CLASS_I, "d",         MATCH_RDCYCLEH, MASK_RDCYCLEH, match_opcode, INSN_ALIAS },
{"rdinstreth", 32, INSN_CLASS_I, "d",         MATCH_RDINSTRETH, MASK_RDINSTRETH, match_opcode, INSN_ALIAS },
{"rdtimeh",    32, INSN_CLASS_I, "d",         MATCH_RDTIMEH, MASK_RDTIMEH, match_opcode, INSN_ALIAS },
{"ecall",       0, INSN_CLASS_I, "",          MATCH_SCALL, MASK_SCALL, match_opcode, 0 },
{"scall",       0, INSN_CLASS_I, "",          MATCH_SCALL, MASK_SCALL, match_opcode, 0 },
{"xori",        0, INSN_CLASS_I, "d,s,j",     MATCH_XORI, MASK_XORI, match_opcode, 0 },
{"xor",         0, INSN_CLASS_C, "Cs,Cw,Ct",  MATCH_C_XOR, MASK_C_XOR, match_opcode, INSN_ALIAS },
{"xor",         0, INSN_CLASS_C, "Cs,Ct,Cw",  MATCH_C_XOR, MASK_C_XOR, match_opcode, INSN_ALIAS },
{"xor",         0, INSN_CLASS_I, "d,s,t",     MATCH_XOR, MASK_XOR, match_opcode, 0 },
{"xor",         0, INSN_CLASS_I, "d,s,j",     MATCH_XORI, MASK_XORI, match_opcode, INSN_ALIAS },
{"lwu",        64, INSN_CLASS_I, "d,o(s)",    MATCH_LWU, MASK_LWU, match_opcode, INSN_DREF|INSN_4_BYTE },
{"lwu",        64, INSN_CLASS_I, "d,A",       0, (int) M_LWU, match_never, INSN_MACRO },
{"ld",         64, INSN_CLASS_C, "d,Cn(Cc)",  MATCH_C_LDSP, MASK_C_LDSP, match_rd_nonzero, INSN_ALIAS|INSN_DREF|INSN_8_BYTE },
{"ld",         64, INSN_CLASS_C, "Ct,Cl(Cs)", MATCH_C_LD, MASK_C_LD, match_opcode, INSN_ALIAS|INSN_DREF|INSN_8_BYTE },
{"ld",         64, INSN_CLASS_I, "d,o(s)",    MATCH_LD, MASK_LD, match_opcode, INSN_DREF|INSN_8_BYTE },
{"ld",         64, INSN_CLASS_I, "d,A",       0, (int) M_LD, match_never, INSN_MACRO },
{"sd",         64, INSN_CLASS_C, "CV,CN(Cc)", MATCH_C_SDSP, MASK_C_SDSP, match_opcode, INSN_ALIAS|INSN_DREF|INSN_8_BYTE },
{"sd",         64, INSN_CLASS_C, "Ct,Cl(Cs)", MATCH_C_SD, MASK_C_SD, match_opcode, INSN_ALIAS|INSN_DREF|INSN_8_BYTE },
{"sd",         64, INSN_CLASS_I, "t,q(s)",    MATCH_SD, MASK_SD, match_opcode, INSN_DREF|INSN_8_BYTE },
{"sd",         64, INSN_CLASS_I, "t,A,s",     0, (int) M_SD, match_never, INSN_MACRO },
{"zext.w",     64, INSN_CLASS_I, "d,s",       0, (int) M_ZEXTW, match_never, INSN_MACRO },
{"sext.w",     64, INSN_CLASS_C, "d,CU",      MATCH_C_ADDIW, MASK_C_ADDIW|MASK_RVC_IMM, match_rd_nonzero, INSN_ALIAS },
{"sext.w",     64, INSN_CLASS_I, "d,s",       MATCH_ADDIW, MASK_ADDIW|MASK_IMM, match_opcode, INSN_ALIAS },
{"addiw",      64, INSN_CLASS_C, "d,CU,Co",   MATCH_C_ADDIW, MASK_C_ADDIW, match_rd_nonzero, INSN_ALIAS },
{"addiw",      64, INSN_CLASS_I, "d,s,j",     MATCH_ADDIW, MASK_ADDIW, match_opcode, 0 },
{"addw",       64, INSN_CLASS_C, "Cs,Cw,Ct",  MATCH_C_ADDW, MASK_C_ADDW, match_opcode, INSN_ALIAS },
{"addw",       64, INSN_CLASS_C, "Cs,Ct,Cw",  MATCH_C_ADDW, MASK_C_ADDW, match_opcode, INSN_ALIAS },
{"addw",       64, INSN_CLASS_C, "d,CU,Co",   MATCH_C_ADDIW, MASK_C_ADDIW, match_rd_nonzero, INSN_ALIAS },
{"addw",       64, INSN_CLASS_I, "d,s,t",     MATCH_ADDW, MASK_ADDW, match_opcode, 0 },
{"addw",       64, INSN_CLASS_I, "d,s,j",     MATCH_ADDIW, MASK_ADDIW, match_opcode, INSN_ALIAS },
{"negw",       64, INSN_CLASS_I, "d,t",       MATCH_SUBW, MASK_SUBW|MASK_RS1, match_opcode, INSN_ALIAS }, /* sub 0  */
{"slliw",      64, INSN_CLASS_I, "d,s,<",     MATCH_SLLIW, MASK_SLLIW, match_opcode, 0 },
{"sllw",       64, INSN_CLASS_I, "d,s,t",     MATCH_SLLW, MASK_SLLW, match_opcode, 0 },
{"sllw",       64, INSN_CLASS_I, "d,s,<",     MATCH_SLLIW, MASK_SLLIW, match_opcode, INSN_ALIAS },
{"srliw",      64, INSN_CLASS_I, "d,s,<",     MATCH_SRLIW, MASK_SRLIW, match_opcode, 0 },
{"srlw",       64, INSN_CLASS_I, "d,s,t",     MATCH_SRLW, MASK_SRLW, match_opcode, 0 },
{"srlw",       64, INSN_CLASS_I, "d,s,<",     MATCH_SRLIW, MASK_SRLIW, match_opcode, INSN_ALIAS },
{"sraiw",      64, INSN_CLASS_I, "d,s,<",     MATCH_SRAIW, MASK_SRAIW, match_opcode, 0 },
{"sraw",       64, INSN_CLASS_I, "d,s,t",     MATCH_SRAW, MASK_SRAW, match_opcode, 0 },
{"sraw",       64, INSN_CLASS_I, "d,s,<",     MATCH_SRAIW, MASK_SRAIW, match_opcode, INSN_ALIAS },
{"subw",       64, INSN_CLASS_C, "Cs,Cw,Ct",  MATCH_C_SUBW, MASK_C_SUBW, match_opcode, INSN_ALIAS },
{"subw",       64, INSN_CLASS_I, "d,s,t",     MATCH_SUBW, MASK_SUBW, match_opcode, 0 },

/* Atomic memory operation instruction subset.  */
{"lr.w",            0, INSN_CLASS_A, "d,0(s)",   MATCH_LR_W, MASK_LR_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"sc.w",            0, INSN_CLASS_A, "d,t,0(s)", MATCH_SC_W, MASK_SC_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoadd.w",        0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOADD_W, MASK_AMOADD_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoswap.w",       0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOSWAP_W, MASK_AMOSWAP_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoand.w",        0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOAND_W, MASK_AMOAND_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoor.w",         0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOOR_W, MASK_AMOOR_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoxor.w",        0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOXOR_W, MASK_AMOXOR_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amomax.w",        0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMAX_W, MASK_AMOMAX_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amomaxu.w",       0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMAXU_W, MASK_AMOMAXU_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amomin.w",        0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMIN_W, MASK_AMOMIN_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amominu.w",       0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMINU_W, MASK_AMOMINU_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"lr.w.aq",         0, INSN_CLASS_A, "d,0(s)",   MATCH_LR_W|MASK_AQ, MASK_LR_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"sc.w.aq",         0, INSN_CLASS_A, "d,t,0(s)", MATCH_SC_W|MASK_AQ, MASK_SC_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoadd.w.aq",     0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOADD_W|MASK_AQ, MASK_AMOADD_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoswap.w.aq",    0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOSWAP_W|MASK_AQ, MASK_AMOSWAP_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoand.w.aq",     0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOAND_W|MASK_AQ, MASK_AMOAND_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoor.w.aq",      0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOOR_W|MASK_AQ, MASK_AMOOR_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoxor.w.aq",     0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOXOR_W|MASK_AQ, MASK_AMOXOR_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amomax.w.aq",     0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMAX_W|MASK_AQ, MASK_AMOMAX_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amomaxu.w.aq",    0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMAXU_W|MASK_AQ, MASK_AMOMAXU_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amomin.w.aq",     0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMIN_W|MASK_AQ, MASK_AMOMIN_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amominu.w.aq",    0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMINU_W|MASK_AQ, MASK_AMOMINU_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"lr.w.rl",         0, INSN_CLASS_A, "d,0(s)",   MATCH_LR_W|MASK_RL, MASK_LR_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"sc.w.rl",         0, INSN_CLASS_A, "d,t,0(s)", MATCH_SC_W|MASK_RL, MASK_SC_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoadd.w.rl",     0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOADD_W|MASK_RL, MASK_AMOADD_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoswap.w.rl",    0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOSWAP_W|MASK_RL, MASK_AMOSWAP_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoand.w.rl",     0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOAND_W|MASK_RL, MASK_AMOAND_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoor.w.rl",      0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOOR_W|MASK_RL, MASK_AMOOR_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoxor.w.rl",     0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOXOR_W|MASK_RL, MASK_AMOXOR_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amomax.w.rl",     0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMAX_W|MASK_RL, MASK_AMOMAX_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amomaxu.w.rl",    0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMAXU_W|MASK_RL, MASK_AMOMAXU_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amomin.w.rl",     0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMIN_W|MASK_RL, MASK_AMOMIN_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amominu.w.rl",    0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMINU_W|MASK_RL, MASK_AMOMINU_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"lr.w.aqrl",       0, INSN_CLASS_A, "d,0(s)",   MATCH_LR_W|MASK_AQRL, MASK_LR_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"sc.w.aqrl",       0, INSN_CLASS_A, "d,t,0(s)", MATCH_SC_W|MASK_AQRL, MASK_SC_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoadd.w.aqrl",   0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOADD_W|MASK_AQRL, MASK_AMOADD_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoswap.w.aqrl",  0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOSWAP_W|MASK_AQRL, MASK_AMOSWAP_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoand.w.aqrl",   0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOAND_W|MASK_AQRL, MASK_AMOAND_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoor.w.aqrl",    0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOOR_W|MASK_AQRL, MASK_AMOOR_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amoxor.w.aqrl",   0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOXOR_W|MASK_AQRL, MASK_AMOXOR_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amomax.w.aqrl",   0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMAX_W|MASK_AQRL, MASK_AMOMAX_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amomaxu.w.aqrl",  0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMAXU_W|MASK_AQRL, MASK_AMOMAXU_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amomin.w.aqrl",   0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMIN_W|MASK_AQRL, MASK_AMOMIN_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"amominu.w.aqrl",  0, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMINU_W|MASK_AQRL, MASK_AMOMINU_W|MASK_AQRL, match_opcode, INSN_DREF|INSN_4_BYTE },
{"lr.d",           64, INSN_CLASS_A, "d,0(s)",   MATCH_LR_D, MASK_LR_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"sc.d",           64, INSN_CLASS_A, "d,t,0(s)", MATCH_SC_D, MASK_SC_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoadd.d",       64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOADD_D, MASK_AMOADD_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoswap.d",      64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOSWAP_D, MASK_AMOSWAP_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoand.d",       64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOAND_D, MASK_AMOAND_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoor.d",        64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOOR_D, MASK_AMOOR_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoxor.d",       64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOXOR_D, MASK_AMOXOR_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amomax.d",       64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMAX_D, MASK_AMOMAX_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amomaxu.d",      64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMAXU_D, MASK_AMOMAXU_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amomin.d",       64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMIN_D, MASK_AMOMIN_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amominu.d",      64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMINU_D, MASK_AMOMINU_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"lr.d.aq",        64, INSN_CLASS_A, "d,0(s)",   MATCH_LR_D|MASK_AQ, MASK_LR_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"sc.d.aq",        64, INSN_CLASS_A, "d,t,0(s)", MATCH_SC_D|MASK_AQ, MASK_SC_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoadd.d.aq",    64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOADD_D|MASK_AQ, MASK_AMOADD_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoswap.d.aq",   64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOSWAP_D|MASK_AQ, MASK_AMOSWAP_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoand.d.aq",    64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOAND_D|MASK_AQ, MASK_AMOAND_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoor.d.aq",     64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOOR_D|MASK_AQ, MASK_AMOOR_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoxor.d.aq",    64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOXOR_D|MASK_AQ, MASK_AMOXOR_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amomax.d.aq",    64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMAX_D|MASK_AQ, MASK_AMOMAX_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amomaxu.d.aq",   64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMAXU_D|MASK_AQ, MASK_AMOMAXU_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amomin.d.aq",    64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMIN_D|MASK_AQ, MASK_AMOMIN_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amominu.d.aq",   64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMINU_D|MASK_AQ, MASK_AMOMINU_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"lr.d.rl",        64, INSN_CLASS_A, "d,0(s)",   MATCH_LR_D|MASK_RL, MASK_LR_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"sc.d.rl",        64, INSN_CLASS_A, "d,t,0(s)", MATCH_SC_D|MASK_RL, MASK_SC_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoadd.d.rl",    64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOADD_D|MASK_RL, MASK_AMOADD_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoswap.d.rl",   64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOSWAP_D|MASK_RL, MASK_AMOSWAP_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoand.d.rl",    64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOAND_D|MASK_RL, MASK_AMOAND_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoor.d.rl",     64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOOR_D|MASK_RL, MASK_AMOOR_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoxor.d.rl",    64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOXOR_D|MASK_RL, MASK_AMOXOR_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amomax.d.rl",    64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMAX_D|MASK_RL, MASK_AMOMAX_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amomaxu.d.rl",   64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMAXU_D|MASK_RL, MASK_AMOMAXU_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amomin.d.rl",    64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMIN_D|MASK_RL, MASK_AMOMIN_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amominu.d.rl",   64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMINU_D|MASK_RL, MASK_AMOMINU_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"lr.d.aqrl",      64, INSN_CLASS_A, "d,0(s)",   MATCH_LR_D|MASK_AQRL, MASK_LR_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"sc.d.aqrl",      64, INSN_CLASS_A, "d,t,0(s)", MATCH_SC_D|MASK_AQRL, MASK_SC_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoadd.d.aqrl",  64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOADD_D|MASK_AQRL, MASK_AMOADD_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoswap.d.aqrl", 64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOSWAP_D|MASK_AQRL, MASK_AMOSWAP_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoand.d.aqrl",  64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOAND_D|MASK_AQRL, MASK_AMOAND_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoor.d.aqrl",   64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOOR_D|MASK_AQRL, MASK_AMOOR_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amoxor.d.aqrl",  64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOXOR_D|MASK_AQRL, MASK_AMOXOR_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amomax.d.aqrl",  64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMAX_D|MASK_AQRL, MASK_AMOMAX_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amomaxu.d.aqrl", 64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMAXU_D|MASK_AQRL, MASK_AMOMAXU_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amomin.d.aqrl",  64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMIN_D|MASK_AQRL, MASK_AMOMIN_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },
{"amominu.d.aqrl", 64, INSN_CLASS_A, "d,t,0(s)", MATCH_AMOMINU_D|MASK_AQRL, MASK_AMOMINU_D|MASK_AQRL, match_opcode, INSN_DREF|INSN_8_BYTE },

/* Multiply/Divide instruction subset.  */
{"mul",        0, INSN_CLASS_M,   "d,s,t",     MATCH_MUL, MASK_MUL, match_opcode, 0 },
{"mulh",       0, INSN_CLASS_M,   "d,s,t",     MATCH_MULH, MASK_MULH, match_opcode, 0 },
{"mulhu",      0, INSN_CLASS_M,   "d,s,t",     MATCH_MULHU, MASK_MULHU, match_opcode, 0 },
{"mulhsu",     0, INSN_CLASS_M,   "d,s,t",     MATCH_MULHSU, MASK_MULHSU, match_opcode, 0 },
{"div",        0, INSN_CLASS_M,   "d,s,t",     MATCH_DIV, MASK_DIV, match_opcode, 0 },
{"divu",       0, INSN_CLASS_M,   "d,s,t",     MATCH_DIVU, MASK_DIVU, match_opcode, 0 },
{"rem",        0, INSN_CLASS_M,   "d,s,t",     MATCH_REM, MASK_REM, match_opcode, 0 },
{"remu",       0, INSN_CLASS_M,   "d,s,t",     MATCH_REMU, MASK_REMU, match_opcode, 0 },
{"mulw",      64, INSN_CLASS_M,   "d,s,t",     MATCH_MULW, MASK_MULW, match_opcode, 0 },
{"divw",      64, INSN_CLASS_M,   "d,s,t",     MATCH_DIVW, MASK_DIVW, match_opcode, 0 },
{"divuw",     64, INSN_CLASS_M,   "d,s,t",     MATCH_DIVUW, MASK_DIVUW, match_opcode, 0 },
{"remw",      64, INSN_CLASS_M,   "d,s,t",     MATCH_REMW, MASK_REMW, match_opcode, 0 },
{"remuw",     64, INSN_CLASS_M,   "d,s,t",     MATCH_REMUW, MASK_REMUW, match_opcode, 0 },

/* Single-precision floating-point instruction subset.  */
{"frcsr",      0, INSN_CLASS_F,   "d",         MATCH_FRCSR, MASK_FRCSR, match_opcode, INSN_ALIAS },
{"frsr",       0, INSN_CLASS_F,   "d",         MATCH_FRCSR, MASK_FRCSR, match_opcode, INSN_ALIAS },
{"fscsr",      0, INSN_CLASS_F,   "s",         MATCH_FSCSR, MASK_FSCSR|MASK_RD, match_opcode, INSN_ALIAS },
{"fscsr",      0, INSN_CLASS_F,   "d,s",       MATCH_FSCSR, MASK_FSCSR, match_opcode, INSN_ALIAS },
{"fssr",       0, INSN_CLASS_F,   "s",         MATCH_FSCSR, MASK_FSCSR|MASK_RD, match_opcode, INSN_ALIAS },
{"fssr",       0, INSN_CLASS_F,   "d,s",       MATCH_FSCSR, MASK_FSCSR, match_opcode, INSN_ALIAS },
{"frrm",       0, INSN_CLASS_F,   "d",         MATCH_FRRM, MASK_FRRM, match_opcode, INSN_ALIAS },
{"fsrm",       0, INSN_CLASS_F,   "s",         MATCH_FSRM, MASK_FSRM|MASK_RD, match_opcode, INSN_ALIAS },
{"fsrm",       0, INSN_CLASS_F,   "d,s",       MATCH_FSRM, MASK_FSRM, match_opcode, INSN_ALIAS },
{"fsrmi",      0, INSN_CLASS_F,   "d,Z",       MATCH_FSRMI, MASK_FSRMI, match_opcode, INSN_ALIAS },
{"fsrmi",      0, INSN_CLASS_F,   "Z",         MATCH_FSRMI, MASK_FSRMI|MASK_RD, match_opcode, INSN_ALIAS },
{"frflags",    0, INSN_CLASS_F,   "d",         MATCH_FRFLAGS, MASK_FRFLAGS, match_opcode, INSN_ALIAS },
{"fsflags",    0, INSN_CLASS_F,   "s",         MATCH_FSFLAGS, MASK_FSFLAGS|MASK_RD, match_opcode, INSN_ALIAS },
{"fsflags",    0, INSN_CLASS_F,   "d,s",       MATCH_FSFLAGS, MASK_FSFLAGS, match_opcode, INSN_ALIAS },
{"fsflagsi",   0, INSN_CLASS_F,   "d,Z",       MATCH_FSFLAGSI, MASK_FSFLAGSI, match_opcode, INSN_ALIAS },
{"fsflagsi",   0, INSN_CLASS_F,   "Z",         MATCH_FSFLAGSI, MASK_FSFLAGSI|MASK_RD, match_opcode, INSN_ALIAS },
{"flw",       32, INSN_CLASS_F_AND_C, "D,Cm(Cc)",  MATCH_C_FLWSP, MASK_C_FLWSP, match_opcode, INSN_ALIAS|INSN_DREF|INSN_4_BYTE },
{"flw",       32, INSN_CLASS_F_AND_C, "CD,Ck(Cs)", MATCH_C_FLW, MASK_C_FLW, match_opcode, INSN_ALIAS|INSN_DREF|INSN_4_BYTE },
{"flw",        0, INSN_CLASS_F,   "D,o(s)",    MATCH_FLW, MASK_FLW, match_opcode, INSN_DREF|INSN_4_BYTE },
{"flw",        0, INSN_CLASS_F,   "D,A,s",     0, (int) M_FLW, match_never, INSN_MACRO },
{"fsw",       32, INSN_CLASS_F_AND_C, "CT,CM(Cc)", MATCH_C_FSWSP, MASK_C_FSWSP, match_opcode, INSN_ALIAS|INSN_DREF|INSN_4_BYTE },
{"fsw",       32, INSN_CLASS_F_AND_C, "CD,Ck(Cs)", MATCH_C_FSW, MASK_C_FSW, match_opcode, INSN_ALIAS|INSN_DREF|INSN_4_BYTE },
{"fsw",        0, INSN_CLASS_F,   "T,q(s)",    MATCH_FSW, MASK_FSW, match_opcode, INSN_DREF|INSN_4_BYTE },
{"fsw",        0, INSN_CLASS_F,   "T,A,s",     0, (int) M_FSW, match_never, INSN_MACRO },
{"fmv.x.w",    0, INSN_CLASS_F,   "d,S",       MATCH_FMV_X_S, MASK_FMV_X_S, match_opcode, 0 },
{"fmv.w.x",    0, INSN_CLASS_F,   "D,s",       MATCH_FMV_S_X, MASK_FMV_S_X, match_opcode, 0 },
{"fmv.x.s",    0, INSN_CLASS_F,   "d,S",       MATCH_FMV_X_S, MASK_FMV_X_S, match_opcode, 0 },
{"fmv.s.x",    0, INSN_CLASS_F,   "D,s",       MATCH_FMV_S_X, MASK_FMV_S_X, match_opcode, 0 },
{"fmv.s",      0, INSN_CLASS_F,   "D,U",       MATCH_FSGNJ_S, MASK_FSGNJ_S, match_rs1_eq_rs2, INSN_ALIAS },
{"fneg.s",     0, INSN_CLASS_F,   "D,U",       MATCH_FSGNJN_S, MASK_FSGNJN_S, match_rs1_eq_rs2, INSN_ALIAS },
{"fabs.s",     0, INSN_CLASS_F,   "D,U",       MATCH_FSGNJX_S, MASK_FSGNJX_S, match_rs1_eq_rs2, INSN_ALIAS },
{"fsgnj.s",    0, INSN_CLASS_F,   "D,S,T",     MATCH_FSGNJ_S, MASK_FSGNJ_S, match_opcode, 0 },
{"fsgnjn.s",   0, INSN_CLASS_F,   "D,S,T",     MATCH_FSGNJN_S, MASK_FSGNJN_S, match_opcode, 0 },
{"fsgnjx.s",   0, INSN_CLASS_F,   "D,S,T",     MATCH_FSGNJX_S, MASK_FSGNJX_S, match_opcode, 0 },
{"fadd.s",     0, INSN_CLASS_F,   "D,S,T",     MATCH_FADD_S|MASK_RM, MASK_FADD_S|MASK_RM, match_opcode, 0 },
{"fadd.s",     0, INSN_CLASS_F,   "D,S,T,m",   MATCH_FADD_S, MASK_FADD_S, match_opcode, 0 },
{"fsub.s",     0, INSN_CLASS_F,   "D,S,T",     MATCH_FSUB_S|MASK_RM, MASK_FSUB_S|MASK_RM, match_opcode, 0 },
{"fsub.s",     0, INSN_CLASS_F,   "D,S,T,m",   MATCH_FSUB_S, MASK_FSUB_S, match_opcode, 0 },
{"fmul.s",     0, INSN_CLASS_F,   "D,S,T",     MATCH_FMUL_S|MASK_RM, MASK_FMUL_S|MASK_RM, match_opcode, 0 },
{"fmul.s",     0, INSN_CLASS_F,   "D,S,T,m",   MATCH_FMUL_S, MASK_FMUL_S, match_opcode, 0 },
{"fdiv.s",     0, INSN_CLASS_F,   "D,S,T",     MATCH_FDIV_S|MASK_RM, MASK_FDIV_S|MASK_RM, match_opcode, 0 },
{"fdiv.s",     0, INSN_CLASS_F,   "D,S,T,m",   MATCH_FDIV_S, MASK_FDIV_S, match_opcode, 0 },
{"fsqrt.s",    0, INSN_CLASS_F,   "D,S",       MATCH_FSQRT_S|MASK_RM, MASK_FSQRT_S|MASK_RM, match_opcode, 0 },
{"fsqrt.s",    0, INSN_CLASS_F,   "D,S,m",     MATCH_FSQRT_S, MASK_FSQRT_S, match_opcode, 0 },
{"fmin.s",     0, INSN_CLASS_F,   "D,S,T",     MATCH_FMIN_S, MASK_FMIN_S, match_opcode, 0 },
{"fmax.s",     0, INSN_CLASS_F,   "D,S,T",     MATCH_FMAX_S, MASK_FMAX_S, match_opcode, 0 },
{"fmadd.s",    0, INSN_CLASS_F,   "D,S,T,R",   MATCH_FMADD_S|MASK_RM, MASK_FMADD_S|MASK_RM, match_opcode, 0 },
{"fmadd.s",    0, INSN_CLASS_F,   "D,S,T,R,m", MATCH_FMADD_S, MASK_FMADD_S, match_opcode, 0 },
{"fnmadd.s",   0, INSN_CLASS_F,   "D,S,T,R",   MATCH_FNMADD_S|MASK_RM, MASK_FNMADD_S|MASK_RM, match_opcode, 0 },
{"fnmadd.s",   0, INSN_CLASS_F,   "D,S,T,R,m", MATCH_FNMADD_S, MASK_FNMADD_S, match_opcode, 0 },
{"fmsub.s",    0, INSN_CLASS_F,   "D,S,T,R",   MATCH_FMSUB_S|MASK_RM, MASK_FMSUB_S|MASK_RM, match_opcode, 0 },
{"fmsub.s",    0, INSN_CLASS_F,   "D,S,T,R,m", MATCH_FMSUB_S, MASK_FMSUB_S, match_opcode, 0 },
{"fnmsub.s",   0, INSN_CLASS_F,   "D,S,T,R",   MATCH_FNMSUB_S|MASK_RM, MASK_FNMSUB_S|MASK_RM, match_opcode, 0 },
{"fnmsub.s",   0, INSN_CLASS_F,   "D,S,T,R,m", MATCH_FNMSUB_S, MASK_FNMSUB_S, match_opcode, 0 },
{"fcvt.w.s",   0, INSN_CLASS_F,   "d,S",       MATCH_FCVT_W_S|MASK_RM, MASK_FCVT_W_S|MASK_RM, match_opcode, 0 },
{"fcvt.w.s",   0, INSN_CLASS_F,   "d,S,m",     MATCH_FCVT_W_S, MASK_FCVT_W_S, match_opcode, 0 },
{"fcvt.wu.s",  0, INSN_CLASS_F,   "d,S",       MATCH_FCVT_WU_S|MASK_RM, MASK_FCVT_WU_S|MASK_RM, match_opcode, 0 },
{"fcvt.wu.s",  0, INSN_CLASS_F,   "d,S,m",     MATCH_FCVT_WU_S, MASK_FCVT_WU_S, match_opcode, 0 },
{"fcvt.s.w",   0, INSN_CLASS_F,   "D,s",       MATCH_FCVT_S_W|MASK_RM, MASK_FCVT_S_W|MASK_RM, match_opcode, 0 },
{"fcvt.s.w",   0, INSN_CLASS_F,   "D,s,m",     MATCH_FCVT_S_W, MASK_FCVT_S_W, match_opcode, 0 },
{"fcvt.s.wu",  0, INSN_CLASS_F,   "D,s",       MATCH_FCVT_S_WU|MASK_RM, MASK_FCVT_S_W|MASK_RM, match_opcode, 0 },
{"fcvt.s.wu",  0, INSN_CLASS_F,   "D,s,m",     MATCH_FCVT_S_WU, MASK_FCVT_S_WU, match_opcode, 0 },
{"fclass.s",   0, INSN_CLASS_F,   "d,S",       MATCH_FCLASS_S, MASK_FCLASS_S, match_opcode, 0 },
{"feq.s",      0, INSN_CLASS_F,   "d,S,T",     MATCH_FEQ_S, MASK_FEQ_S, match_opcode, 0 },
{"flt.s",      0, INSN_CLASS_F,   "d,S,T",     MATCH_FLT_S, MASK_FLT_S, match_opcode, 0 },
{"fle.s",      0, INSN_CLASS_F,   "d,S,T",     MATCH_FLE_S, MASK_FLE_S, match_opcode, 0 },
{"fgt.s",      0, INSN_CLASS_F,   "d,T,S",     MATCH_FLT_S, MASK_FLT_S, match_opcode, 0 },
{"fge.s",      0, INSN_CLASS_F,   "d,T,S",     MATCH_FLE_S, MASK_FLE_S, match_opcode, 0 },
{"fcvt.l.s",  64, INSN_CLASS_F,   "d,S",       MATCH_FCVT_L_S|MASK_RM, MASK_FCVT_L_S|MASK_RM, match_opcode, 0 },
{"fcvt.l.s",  64, INSN_CLASS_F,   "d,S,m",     MATCH_FCVT_L_S, MASK_FCVT_L_S, match_opcode, 0 },
{"fcvt.lu.s", 64, INSN_CLASS_F,   "d,S",       MATCH_FCVT_LU_S|MASK_RM, MASK_FCVT_LU_S|MASK_RM, match_opcode, 0 },
{"fcvt.lu.s", 64, INSN_CLASS_F,   "d,S,m",     MATCH_FCVT_LU_S, MASK_FCVT_LU_S, match_opcode, 0 },
{"fcvt.s.l",  64, INSN_CLASS_F,   "D,s",       MATCH_FCVT_S_L|MASK_RM, MASK_FCVT_S_L|MASK_RM, match_opcode, 0 },
{"fcvt.s.l",  64, INSN_CLASS_F,   "D,s,m",     MATCH_FCVT_S_L, MASK_FCVT_S_L, match_opcode, 0 },
{"fcvt.s.lu", 64, INSN_CLASS_F,   "D,s",       MATCH_FCVT_S_LU|MASK_RM, MASK_FCVT_S_L|MASK_RM, match_opcode, 0 },
{"fcvt.s.lu", 64, INSN_CLASS_F,   "D,s,m",     MATCH_FCVT_S_LU, MASK_FCVT_S_LU, match_opcode, 0 },

/* Double-precision floating-point instruction subset.  */
{"fld",        0, INSN_CLASS_D_AND_C, "D,Cn(Cc)",  MATCH_C_FLDSP, MASK_C_FLDSP, match_opcode, INSN_ALIAS|INSN_DREF|INSN_8_BYTE },
{"fld",        0, INSN_CLASS_D_AND_C, "CD,Cl(Cs)", MATCH_C_FLD, MASK_C_FLD, match_opcode, INSN_ALIAS|INSN_DREF|INSN_8_BYTE },
{"fld",        0, INSN_CLASS_D,   "D,o(s)",    MATCH_FLD, MASK_FLD, match_opcode, INSN_DREF|INSN_8_BYTE },
{"fld",        0, INSN_CLASS_D,   "D,A,s",     0, (int) M_FLD, match_never, INSN_MACRO },
{"fsd",        0, INSN_CLASS_D_AND_C, "CT,CN(Cc)", MATCH_C_FSDSP, MASK_C_FSDSP, match_opcode, INSN_ALIAS|INSN_DREF|INSN_8_BYTE },
{"fsd",        0, INSN_CLASS_D_AND_C, "CD,Cl(Cs)", MATCH_C_FSD, MASK_C_FSD, match_opcode, INSN_ALIAS|INSN_DREF|INSN_8_BYTE },
{"fsd",        0, INSN_CLASS_D,   "T,q(s)",    MATCH_FSD, MASK_FSD, match_opcode, INSN_DREF|INSN_8_BYTE },
{"fsd",        0, INSN_CLASS_D,   "T,A,s",     0, (int) M_FSD, match_never, INSN_MACRO },
{"fmv.d",      0, INSN_CLASS_D,   "D,U",       MATCH_FSGNJ_D, MASK_FSGNJ_D, match_rs1_eq_rs2, INSN_ALIAS },
{"fneg.d",     0, INSN_CLASS_D,   "D,U",       MATCH_FSGNJN_D, MASK_FSGNJN_D, match_rs1_eq_rs2, INSN_ALIAS },
{"fabs.d",     0, INSN_CLASS_D,   "D,U",       MATCH_FSGNJX_D, MASK_FSGNJX_D, match_rs1_eq_rs2, INSN_ALIAS },
{"fsgnj.d",    0, INSN_CLASS_D,   "D,S,T",     MATCH_FSGNJ_D, MASK_FSGNJ_D, match_opcode, 0 },
{"fsgnjn.d",   0, INSN_CLASS_D,   "D,S,T",     MATCH_FSGNJN_D, MASK_FSGNJN_D, match_opcode, 0 },
{"fsgnjx.d",   0, INSN_CLASS_D,   "D,S,T",     MATCH_FSGNJX_D, MASK_FSGNJX_D, match_opcode, 0 },
{"fadd.d",     0, INSN_CLASS_D,   "D,S,T",     MATCH_FADD_D|MASK_RM, MASK_FADD_D|MASK_RM, match_opcode, 0 },
{"fadd.d",     0, INSN_CLASS_D,   "D,S,T,m",   MATCH_FADD_D, MASK_FADD_D, match_opcode, 0 },
{"fsub.d",     0, INSN_CLASS_D,   "D,S,T",     MATCH_FSUB_D|MASK_RM, MASK_FSUB_D|MASK_RM, match_opcode, 0 },
{"fsub.d",     0, INSN_CLASS_D,   "D,S,T,m",   MATCH_FSUB_D, MASK_FSUB_D, match_opcode, 0 },
{"fmul.d",     0, INSN_CLASS_D,   "D,S,T",     MATCH_FMUL_D|MASK_RM, MASK_FMUL_D|MASK_RM, match_opcode, 0 },
{"fmul.d",     0, INSN_CLASS_D,   "D,S,T,m",   MATCH_FMUL_D, MASK_FMUL_D, match_opcode, 0 },
{"fdiv.d",     0, INSN_CLASS_D,   "D,S,T",     MATCH_FDIV_D|MASK_RM, MASK_FDIV_D|MASK_RM, match_opcode, 0 },
{"fdiv.d",     0, INSN_CLASS_D,   "D,S,T,m",   MATCH_FDIV_D, MASK_FDIV_D, match_opcode, 0 },
{"fsqrt.d",    0, INSN_CLASS_D,   "D,S",       MATCH_FSQRT_D|MASK_RM, MASK_FSQRT_D|MASK_RM, match_opcode, 0 },
{"fsqrt.d",    0, INSN_CLASS_D,   "D,S,m",     MATCH_FSQRT_D, MASK_FSQRT_D, match_opcode, 0 },
{"fmin.d",     0, INSN_CLASS_D,   "D,S,T",     MATCH_FMIN_D, MASK_FMIN_D, match_opcode, 0 },
{"fmax.d",     0, INSN_CLASS_D,   "D,S,T",     MATCH_FMAX_D, MASK_FMAX_D, match_opcode, 0 },
{"fmadd.d",    0, INSN_CLASS_D,   "D,S,T,R",   MATCH_FMADD_D|MASK_RM, MASK_FMADD_D|MASK_RM, match_opcode, 0 },
{"fmadd.d",    0, INSN_CLASS_D,   "D,S,T,R,m", MATCH_FMADD_D, MASK_FMADD_D, match_opcode, 0 },
{"fnmadd.d",   0, INSN_CLASS_D,   "D,S,T,R",   MATCH_FNMADD_D|MASK_RM, MASK_FNMADD_D|MASK_RM, match_opcode, 0 },
{"fnmadd.d",   0, INSN_CLASS_D,   "D,S,T,R,m", MATCH_FNMADD_D, MASK_FNMADD_D, match_opcode, 0 },
{"fmsub.d",    0, INSN_CLASS_D,   "D,S,T,R",   MATCH_FMSUB_D|MASK_RM, MASK_FMSUB_D|MASK_RM, match_opcode, 0 },
{"fmsub.d",    0, INSN_CLASS_D,   "D,S,T,R,m", MATCH_FMSUB_D, MASK_FMSUB_D, match_opcode, 0 },
{"fnmsub.d",   0, INSN_CLASS_D,   "D,S,T,R",   MATCH_FNMSUB_D|MASK_RM, MASK_FNMSUB_D|MASK_RM, match_opcode, 0 },
{"fnmsub.d",   0, INSN_CLASS_D,   "D,S,T,R,m", MATCH_FNMSUB_D, MASK_FNMSUB_D, match_opcode, 0 },
{"fcvt.w.d",   0, INSN_CLASS_D,   "d,S",       MATCH_FCVT_W_D|MASK_RM, MASK_FCVT_W_D|MASK_RM, match_opcode, 0 },
{"fcvt.w.d",   0, INSN_CLASS_D,   "d,S,m",     MATCH_FCVT_W_D, MASK_FCVT_W_D, match_opcode, 0 },
{"fcvt.wu.d",  0, INSN_CLASS_D,   "d,S",       MATCH_FCVT_WU_D|MASK_RM, MASK_FCVT_WU_D|MASK_RM, match_opcode, 0 },
{"fcvt.wu.d",  0, INSN_CLASS_D,   "d,S,m",     MATCH_FCVT_WU_D, MASK_FCVT_WU_D, match_opcode, 0 },
{"fcvt.d.w",   0, INSN_CLASS_D,   "D,s",       MATCH_FCVT_D_W, MASK_FCVT_D_W|MASK_RM, match_opcode, 0 },
{"fcvt.d.wu",  0, INSN_CLASS_D,   "D,s",       MATCH_FCVT_D_WU, MASK_FCVT_D_WU|MASK_RM, match_opcode, 0 },
{"fcvt.d.s",   0, INSN_CLASS_D,   "D,S",       MATCH_FCVT_D_S, MASK_FCVT_D_S|MASK_RM, match_opcode, 0 },
{"fcvt.s.d",   0, INSN_CLASS_D,   "D,S",       MATCH_FCVT_S_D|MASK_RM, MASK_FCVT_S_D|MASK_RM, match_opcode, 0 },
{"fcvt.s.d",   0, INSN_CLASS_D,   "D,S,m",     MATCH_FCVT_S_D, MASK_FCVT_S_D, match_opcode, 0 },
{"fclass.d",   0, INSN_CLASS_D,   "d,S",       MATCH_FCLASS_D, MASK_FCLASS_D, match_opcode, 0 },
{"feq.d",      0, INSN_CLASS_D,   "d,S,T",     MATCH_FEQ_D, MASK_FEQ_D, match_opcode, 0 },
{"flt.d",      0, INSN_CLASS_D,   "d,S,T",     MATCH_FLT_D, MASK_FLT_D, match_opcode, 0 },
{"fle.d",      0, INSN_CLASS_D,   "d,S,T",     MATCH_FLE_D, MASK_FLE_D, match_opcode, 0 },
{"fgt.d",      0, INSN_CLASS_D,   "d,T,S",     MATCH_FLT_D, MASK_FLT_D, match_opcode, 0 },
{"fge.d",      0, INSN_CLASS_D,   "d,T,S",     MATCH_FLE_D, MASK_FLE_D, match_opcode, 0 },
{"fmv.x.d",   64, INSN_CLASS_D,   "d,S",       MATCH_FMV_X_D, MASK_FMV_X_D, match_opcode, 0 },
{"fmv.d.x",   64, INSN_CLASS_D,   "D,s",       MATCH_FMV_D_X, MASK_FMV_D_X, match_opcode, 0 },
{"fcvt.l.d",  64, INSN_CLASS_D,   "d,S",       MATCH_FCVT_L_D|MASK_RM, MASK_FCVT_L_D|MASK_RM, match_opcode, 0 },
{"fcvt.l.d",  64, INSN_CLASS_D,   "d,S,m",     MATCH_FCVT_L_D, MASK_FCVT_L_D, match_opcode, 0 },
{"fcvt.lu.d", 64, INSN_CLASS_D,   "d,S",       MATCH_FCVT_LU_D|MASK_RM, MASK_FCVT_LU_D|MASK_RM, match_opcode, 0 },
{"fcvt.lu.d", 64, INSN_CLASS_D,   "d,S,m",     MATCH_FCVT_LU_D, MASK_FCVT_LU_D, match_opcode, 0 },
{"fcvt.d.l",  64, INSN_CLASS_D,   "D,s",       MATCH_FCVT_D_L|MASK_RM, MASK_FCVT_D_L|MASK_RM, match_opcode, 0 },
{"fcvt.d.l",  64, INSN_CLASS_D,   "D,s,m",     MATCH_FCVT_D_L, MASK_FCVT_D_L, match_opcode, 0 },
{"fcvt.d.lu", 64, INSN_CLASS_D,   "D,s",       MATCH_FCVT_D_LU|MASK_RM, MASK_FCVT_D_L|MASK_RM, match_opcode, 0 },
{"fcvt.d.lu", 64, INSN_CLASS_D,   "D,s,m",     MATCH_FCVT_D_LU, MASK_FCVT_D_LU, match_opcode, 0 },

/* Quad-precision floating-point instruction subset.  */
{"flq",        0, INSN_CLASS_Q,   "D,o(s)",    MATCH_FLQ, MASK_FLQ, match_opcode, INSN_DREF|INSN_16_BYTE },
{"flq",        0, INSN_CLASS_Q,   "D,A,s",     0, (int) M_FLQ, match_never, INSN_MACRO },
{"fsq",        0, INSN_CLASS_Q,   "T,q(s)",    MATCH_FSQ, MASK_FSQ, match_opcode, INSN_DREF|INSN_16_BYTE },
{"fsq",        0, INSN_CLASS_Q,   "T,A,s",     0, (int) M_FSQ, match_never, INSN_MACRO },
{"fmv.q",      0, INSN_CLASS_Q,   "D,U",       MATCH_FSGNJ_Q, MASK_FSGNJ_Q, match_rs1_eq_rs2, INSN_ALIAS },
{"fneg.q",     0, INSN_CLASS_Q,   "D,U",       MATCH_FSGNJN_Q, MASK_FSGNJN_Q, match_rs1_eq_rs2, INSN_ALIAS },
{"fabs.q",     0, INSN_CLASS_Q,   "D,U",       MATCH_FSGNJX_Q, MASK_FSGNJX_Q, match_rs1_eq_rs2, INSN_ALIAS },
{"fsgnj.q",    0, INSN_CLASS_Q,   "D,S,T",     MATCH_FSGNJ_Q, MASK_FSGNJ_Q, match_opcode, 0 },
{"fsgnjn.q",   0, INSN_CLASS_Q,   "D,S,T",     MATCH_FSGNJN_Q, MASK_FSGNJN_Q, match_opcode, 0 },
{"fsgnjx.q",   0, INSN_CLASS_Q,   "D,S,T",     MATCH_FSGNJX_Q, MASK_FSGNJX_Q, match_opcode, 0 },
{"fadd.q",     0, INSN_CLASS_Q,   "D,S,T",     MATCH_FADD_Q|MASK_RM, MASK_FADD_Q|MASK_RM, match_opcode, 0 },
{"fadd.q",     0, INSN_CLASS_Q,   "D,S,T,m",   MATCH_FADD_Q, MASK_FADD_Q, match_opcode, 0 },
{"fsub.q",     0, INSN_CLASS_Q,   "D,S,T",     MATCH_FSUB_Q|MASK_RM, MASK_FSUB_Q|MASK_RM, match_opcode, 0 },
{"fsub.q",     0, INSN_CLASS_Q,   "D,S,T,m",   MATCH_FSUB_Q, MASK_FSUB_Q, match_opcode, 0 },
{"fmul.q",     0, INSN_CLASS_Q,   "D,S,T",     MATCH_FMUL_Q|MASK_RM, MASK_FMUL_Q|MASK_RM, match_opcode, 0 },
{"fmul.q",     0, INSN_CLASS_Q,   "D,S,T,m",   MATCH_FMUL_Q, MASK_FMUL_Q, match_opcode, 0 },
{"fdiv.q",     0, INSN_CLASS_Q,   "D,S,T",     MATCH_FDIV_Q|MASK_RM, MASK_FDIV_Q|MASK_RM, match_opcode, 0 },
{"fdiv.q",     0, INSN_CLASS_Q,   "D,S,T,m",   MATCH_FDIV_Q, MASK_FDIV_Q, match_opcode, 0 },
{"fsqrt.q",    0, INSN_CLASS_Q,   "D,S",       MATCH_FSQRT_Q|MASK_RM, MASK_FSQRT_Q|MASK_RM, match_opcode, 0 },
{"fsqrt.q",    0, INSN_CLASS_Q,   "D,S,m",     MATCH_FSQRT_Q, MASK_FSQRT_Q, match_opcode, 0 },
{"fmin.q",     0, INSN_CLASS_Q,   "D,S,T",     MATCH_FMIN_Q, MASK_FMIN_Q, match_opcode, 0 },
{"fmax.q",     0, INSN_CLASS_Q,   "D,S,T",     MATCH_FMAX_Q, MASK_FMAX_Q, match_opcode, 0 },
{"fmadd.q",    0, INSN_CLASS_Q,   "D,S,T,R",   MATCH_FMADD_Q|MASK_RM, MASK_FMADD_Q|MASK_RM, match_opcode, 0 },
{"fmadd.q",    0, INSN_CLASS_Q,   "D,S,T,R,m", MATCH_FMADD_Q, MASK_FMADD_Q, match_opcode, 0 },
{"fnmadd.q",   0, INSN_CLASS_Q,   "D,S,T,R",   MATCH_FNMADD_Q|MASK_RM, MASK_FNMADD_Q|MASK_RM, match_opcode, 0 },
{"fnmadd.q",   0, INSN_CLASS_Q,   "D,S,T,R,m", MATCH_FNMADD_Q, MASK_FNMADD_Q, match_opcode, 0 },
{"fmsub.q",    0, INSN_CLASS_Q,   "D,S,T,R",   MATCH_FMSUB_Q|MASK_RM, MASK_FMSUB_Q|MASK_RM, match_opcode, 0 },
{"fmsub.q",    0, INSN_CLASS_Q,   "D,S,T,R,m", MATCH_FMSUB_Q, MASK_FMSUB_Q, match_opcode, 0 },
{"fnmsub.q",   0, INSN_CLASS_Q,   "D,S,T,R",   MATCH_FNMSUB_Q|MASK_RM, MASK_FNMSUB_Q|MASK_RM, match_opcode, 0 },
{"fnmsub.q",   0, INSN_CLASS_Q,   "D,S,T,R,m", MATCH_FNMSUB_Q, MASK_FNMSUB_Q, match_opcode, 0 },
{"fcvt.w.q",   0, INSN_CLASS_Q,   "d,S",       MATCH_FCVT_W_Q|MASK_RM, MASK_FCVT_W_Q|MASK_RM, match_opcode, 0 },
{"fcvt.w.q",   0, INSN_CLASS_Q,   "d,S,m",     MATCH_FCVT_W_Q, MASK_FCVT_W_Q, match_opcode, 0 },
{"fcvt.wu.q",  0, INSN_CLASS_Q,   "d,S",       MATCH_FCVT_WU_Q|MASK_RM, MASK_FCVT_WU_Q|MASK_RM, match_opcode, 0 },
{"fcvt.wu.q",  0, INSN_CLASS_Q,   "d,S,m",     MATCH_FCVT_WU_Q, MASK_FCVT_WU_Q, match_opcode, 0 },
{"fcvt.q.w",   0, INSN_CLASS_Q,   "D,s",       MATCH_FCVT_Q_W, MASK_FCVT_Q_W|MASK_RM, match_opcode, 0 },
{"fcvt.q.wu",  0, INSN_CLASS_Q,   "D,s",       MATCH_FCVT_Q_WU, MASK_FCVT_Q_WU|MASK_RM, match_opcode, 0 },
{"fcvt.q.s",   0, INSN_CLASS_Q,   "D,S",       MATCH_FCVT_Q_S, MASK_FCVT_Q_S|MASK_RM, match_opcode, 0 },
{"fcvt.q.d",   0, INSN_CLASS_Q,   "D,S",       MATCH_FCVT_Q_D, MASK_FCVT_Q_D|MASK_RM, match_opcode, 0 },
{"fcvt.s.q",   0, INSN_CLASS_Q,   "D,S",       MATCH_FCVT_S_Q|MASK_RM, MASK_FCVT_S_Q|MASK_RM, match_opcode, 0 },
{"fcvt.s.q",   0, INSN_CLASS_Q,   "D,S,m",     MATCH_FCVT_S_Q, MASK_FCVT_S_Q, match_opcode, 0 },
{"fcvt.d.q",   0, INSN_CLASS_Q,   "D,S",       MATCH_FCVT_D_Q|MASK_RM, MASK_FCVT_D_Q|MASK_RM, match_opcode, 0 },
{"fcvt.d.q",   0, INSN_CLASS_Q,   "D,S,m",     MATCH_FCVT_D_Q, MASK_FCVT_D_Q, match_opcode, 0 },
{"fclass.q",   0, INSN_CLASS_Q,   "d,S",       MATCH_FCLASS_Q, MASK_FCLASS_Q, match_opcode, 0 },
{"feq.q",      0, INSN_CLASS_Q,   "d,S,T",     MATCH_FEQ_Q, MASK_FEQ_Q, match_opcode, 0 },
{"flt.q",      0, INSN_CLASS_Q,   "d,S,T",     MATCH_FLT_Q, MASK_FLT_Q, match_opcode, 0 },
{"fle.q",      0, INSN_CLASS_Q,   "d,S,T",     MATCH_FLE_Q, MASK_FLE_Q, match_opcode, 0 },
{"fgt.q",      0, INSN_CLASS_Q,   "d,T,S",     MATCH_FLT_Q, MASK_FLT_Q, match_opcode, 0 },
{"fge.q",      0, INSN_CLASS_Q,   "d,T,S",     MATCH_FLE_Q, MASK_FLE_Q, match_opcode, 0 },
{"fmv.x.q",   64, INSN_CLASS_Q,   "d,S",       MATCH_FMV_X_Q, MASK_FMV_X_Q, match_opcode, 0 },
{"fmv.q.x",   64, INSN_CLASS_Q,   "D,s",       MATCH_FMV_Q_X, MASK_FMV_Q_X, match_opcode, 0 },
{"fcvt.l.q",  64, INSN_CLASS_Q,   "d,S",       MATCH_FCVT_L_Q|MASK_RM, MASK_FCVT_L_Q|MASK_RM, match_opcode, 0 },
{"fcvt.l.q",  64, INSN_CLASS_Q,   "d,S,m",     MATCH_FCVT_L_Q, MASK_FCVT_L_Q, match_opcode, 0 },
{"fcvt.lu.q", 64, INSN_CLASS_Q,   "d,S",       MATCH_FCVT_LU_Q|MASK_RM, MASK_FCVT_LU_Q|MASK_RM, match_opcode, 0 },
{"fcvt.lu.q", 64, INSN_CLASS_Q,   "d,S,m",     MATCH_FCVT_LU_Q, MASK_FCVT_LU_Q, match_opcode, 0 },
{"fcvt.q.l",  64, INSN_CLASS_Q,   "D,s",       MATCH_FCVT_Q_L|MASK_RM, MASK_FCVT_Q_L|MASK_RM, match_opcode, 0 },
{"fcvt.q.l",  64, INSN_CLASS_Q,   "D,s,m",     MATCH_FCVT_Q_L, MASK_FCVT_Q_L, match_opcode, 0 },
{"fcvt.q.lu", 64, INSN_CLASS_Q,   "D,s",       MATCH_FCVT_Q_LU|MASK_RM, MASK_FCVT_Q_L|MASK_RM, match_opcode, 0 },
{"fcvt.q.lu", 64, INSN_CLASS_Q,   "D,s,m",     MATCH_FCVT_Q_LU, MASK_FCVT_Q_LU, match_opcode, 0 },

/* Compressed instructions.  */
{"c.unimp",    0, INSN_CLASS_C,   "",          0, 0xffffU,  match_opcode, 0 },
{"c.ebreak",   0, INSN_CLASS_C,   "",          MATCH_C_EBREAK, MASK_C_EBREAK, match_opcode, 0 },
{"c.jr",       0, INSN_CLASS_C,   "d",         MATCH_C_JR, MASK_C_JR, match_rd_nonzero, INSN_BRANCH },
{"c.jalr",     0, INSN_CLASS_C,   "d",         MATCH_C_JALR, MASK_C_JALR, match_rd_nonzero, INSN_JSR },
{"c.j",        0, INSN_CLASS_C,   "Ca",        MATCH_C_J, MASK_C_J, match_opcode, INSN_BRANCH },
{"c.jal",     32, INSN_CLASS_C,   "Ca",        MATCH_C_JAL, MASK_C_JAL, match_opcode, INSN_JSR },
{"c.beqz",     0, INSN_CLASS_C,   "Cs,Cp",     MATCH_C_BEQZ, MASK_C_BEQZ, match_opcode, INSN_CONDBRANCH },
{"c.bnez",     0, INSN_CLASS_C,   "Cs,Cp",     MATCH_C_BNEZ, MASK_C_BNEZ, match_opcode, INSN_CONDBRANCH },
{"c.lwsp",     0, INSN_CLASS_C,   "d,Cm(Cc)",  MATCH_C_LWSP, MASK_C_LWSP, match_rd_nonzero, 0 },
{"c.lw",       0, INSN_CLASS_C,   "Ct,Ck(Cs)", MATCH_C_LW, MASK_C_LW, match_opcode, INSN_DREF|INSN_4_BYTE },
{"c.swsp",     0, INSN_CLASS_C,   "CV,CM(Cc)", MATCH_C_SWSP, MASK_C_SWSP, match_opcode, INSN_DREF|INSN_4_BYTE },
{"c.sw",       0, INSN_CLASS_C,   "Ct,Ck(Cs)", MATCH_C_SW, MASK_C_SW, match_opcode, INSN_DREF|INSN_4_BYTE },
{"c.nop",      0, INSN_CLASS_C,   "",          MATCH_C_ADDI, 0xffff, match_opcode, INSN_ALIAS },
{"c.nop",      0, INSN_CLASS_C,   "Cj",        MATCH_C_ADDI, MASK_C_ADDI|MASK_RD, match_opcode, INSN_ALIAS },
{"c.mv",       0, INSN_CLASS_C,   "d,CV",      MATCH_C_MV, MASK_C_MV, match_c_add_with_hint, 0 },
{"c.lui",      0, INSN_CLASS_C,   "d,Cu",      MATCH_C_LUI, MASK_C_LUI, match_c_lui_with_hint, 0 },
{"c.li",       0, INSN_CLASS_C,   "d,Co",      MATCH_C_LI, MASK_C_LI, match_opcode, 0 },
{"c.addi4spn", 0, INSN_CLASS_C,   "Ct,Cc,CK",  MATCH_C_ADDI4SPN, MASK_C_ADDI4SPN, match_c_addi4spn, 0 },
{"c.addi16sp", 0, INSN_CLASS_C,   "Cc,CL",     MATCH_C_ADDI16SP, MASK_C_ADDI16SP, match_c_addi16sp, 0 },
{"c.addi",     0, INSN_CLASS_C,   "d,Co",      MATCH_C_ADDI, MASK_C_ADDI, match_opcode, 0 },
{"c.add",      0, INSN_CLASS_C,   "d,CV",      MATCH_C_ADD, MASK_C_ADD, match_c_add_with_hint, 0 },
{"c.sub",      0, INSN_CLASS_C,   "Cs,Ct",     MATCH_C_SUB, MASK_C_SUB, match_opcode, 0 },
{"c.and",      0, INSN_CLASS_C,   "Cs,Ct",     MATCH_C_AND, MASK_C_AND, match_opcode, 0 },
{"c.or",       0, INSN_CLASS_C,   "Cs,Ct",     MATCH_C_OR, MASK_C_OR, match_opcode, 0 },
{"c.xor",      0, INSN_CLASS_C,   "Cs,Ct",     MATCH_C_XOR, MASK_C_XOR, match_opcode, 0 },
{"c.slli",     0, INSN_CLASS_C,   "d,C>",      MATCH_C_SLLI, MASK_C_SLLI, match_c_slli, 0 },
{"c.srli",     0, INSN_CLASS_C,   "Cs,C>",     MATCH_C_SRLI, MASK_C_SRLI, match_c_slli, 0 },
{"c.srai",     0, INSN_CLASS_C,   "Cs,C>",     MATCH_C_SRAI, MASK_C_SRAI, match_c_slli, 0 },
{"c.slli64",   0, INSN_CLASS_C,   "d",         MATCH_C_SLLI64, MASK_C_SLLI64, match_c_slli64, 0 },
{"c.srli64",   0, INSN_CLASS_C,   "Cs",        MATCH_C_SRLI64, MASK_C_SRLI64, match_c_slli64, 0 },
{"c.srai64",   0, INSN_CLASS_C,   "Cs",        MATCH_C_SRAI64, MASK_C_SRAI64, match_c_slli64, 0 },
{"c.andi",     0, INSN_CLASS_C,   "Cs,Co",     MATCH_C_ANDI, MASK_C_ANDI, match_opcode, 0 },
{"c.addiw",   64, INSN_CLASS_C,   "d,Co",      MATCH_C_ADDIW, MASK_C_ADDIW, match_rd_nonzero, 0 },
{"c.addw",    64, INSN_CLASS_C,   "Cs,Ct",     MATCH_C_ADDW, MASK_C_ADDW, match_opcode, 0 },
{"c.subw",    64, INSN_CLASS_C,   "Cs,Ct",     MATCH_C_SUBW, MASK_C_SUBW, match_opcode, 0 },
{"c.ldsp",    64, INSN_CLASS_C,   "d,Cn(Cc)",  MATCH_C_LDSP, MASK_C_LDSP, match_rd_nonzero, INSN_DREF|INSN_8_BYTE },
{"c.ld",      64, INSN_CLASS_C,   "Ct,Cl(Cs)", MATCH_C_LD, MASK_C_LD, match_opcode, INSN_DREF|INSN_8_BYTE },
{"c.sdsp",    64, INSN_CLASS_C,   "CV,CN(Cc)", MATCH_C_SDSP, MASK_C_SDSP, match_opcode, INSN_DREF|INSN_8_BYTE },
{"c.sd",      64, INSN_CLASS_C,   "Ct,Cl(Cs)", MATCH_C_SD, MASK_C_SD, match_opcode, INSN_DREF|INSN_8_BYTE },
{"c.fldsp",    0, INSN_CLASS_D_AND_C, "D,Cn(Cc)",  MATCH_C_FLDSP, MASK_C_FLDSP, match_opcode, INSN_DREF|INSN_8_BYTE },
{"c.fld",      0, INSN_CLASS_D_AND_C, "CD,Cl(Cs)", MATCH_C_FLD, MASK_C_FLD, match_opcode, INSN_DREF|INSN_8_BYTE },
{"c.fsdsp",    0, INSN_CLASS_D_AND_C, "CT,CN(Cc)", MATCH_C_FSDSP, MASK_C_FSDSP, match_opcode, INSN_DREF|INSN_8_BYTE },
{"c.fsd",      0, INSN_CLASS_D_AND_C, "CD,Cl(Cs)", MATCH_C_FSD, MASK_C_FSD, match_opcode, INSN_DREF|INSN_8_BYTE },
{"c.flwsp",   32, INSN_CLASS_F_AND_C, "D,Cm(Cc)",  MATCH_C_FLWSP, MASK_C_FLWSP, match_opcode, INSN_DREF|INSN_4_BYTE },
{"c.flw",     32, INSN_CLASS_F_AND_C, "CD,Ck(Cs)", MATCH_C_FLW, MASK_C_FLW, match_opcode, INSN_DREF|INSN_4_BYTE },
{"c.fswsp",   32, INSN_CLASS_F_AND_C, "CT,CM(Cc)", MATCH_C_FSWSP, MASK_C_FSWSP, match_opcode, INSN_DREF|INSN_4_BYTE },
{"c.fsw",     32, INSN_CLASS_F_AND_C, "CD,Ck(Cs)", MATCH_C_FSW, MASK_C_FSW, match_opcode, INSN_DREF|INSN_4_BYTE },

/* Supervisor instructions.  */
{"csrr",       0, INSN_CLASS_ZICSR,"d,E",      MATCH_CSRRS, MASK_CSRRS|MASK_RS1, match_opcode, INSN_ALIAS },
{"csrwi",      0, INSN_CLASS_ZICSR,"E,Z",      MATCH_CSRRWI, MASK_CSRRWI|MASK_RD, match_opcode, INSN_ALIAS },
{"csrsi",      0, INSN_CLASS_ZICSR,"E,Z",      MATCH_CSRRSI, MASK_CSRRSI|MASK_RD, match_opcode, INSN_ALIAS },
{"csrci",      0, INSN_CLASS_ZICSR,"E,Z",      MATCH_CSRRCI, MASK_CSRRCI|MASK_RD, match_opcode, INSN_ALIAS },
{"csrw",       0, INSN_CLASS_ZICSR,"E,s",      MATCH_CSRRW, MASK_CSRRW|MASK_RD, match_opcode, INSN_ALIAS },
{"csrw",       0, INSN_CLASS_ZICSR,"E,Z",      MATCH_CSRRWI, MASK_CSRRWI|MASK_RD, match_opcode, INSN_ALIAS },
{"csrs",       0, INSN_CLASS_ZICSR,"E,s",      MATCH_CSRRS, MASK_CSRRS|MASK_RD, match_opcode, INSN_ALIAS },
{"csrs",       0, INSN_CLASS_ZICSR,"E,Z",      MATCH_CSRRSI, MASK_CSRRSI|MASK_RD, match_opcode, INSN_ALIAS },
{"csrc",       0, INSN_CLASS_ZICSR,"E,s",      MATCH_CSRRC, MASK_CSRRC|MASK_RD, match_opcode, INSN_ALIAS },
{"csrc",       0, INSN_CLASS_ZICSR,"E,Z",      MATCH_CSRRCI, MASK_CSRRCI|MASK_RD, match_opcode, INSN_ALIAS },
{"csrrwi",     0, INSN_CLASS_ZICSR,"d,E,Z",    MATCH_CSRRWI, MASK_CSRRWI, match_opcode, 0 },
{"csrrsi",     0, INSN_CLASS_ZICSR,"d,E,Z",    MATCH_CSRRSI, MASK_CSRRSI, match_opcode, 0 },
{"csrrci",     0, INSN_CLASS_ZICSR,"d,E,Z",    MATCH_CSRRCI, MASK_CSRRCI, match_opcode, 0 },
{"csrrw",      0, INSN_CLASS_ZICSR,"d,E,s",    MATCH_CSRRW, MASK_CSRRW, match_opcode, 0 },
{"csrrw",      0, INSN_CLASS_ZICSR,"d,E,Z",    MATCH_CSRRWI, MASK_CSRRWI, match_opcode, INSN_ALIAS },
{"csrrs",      0, INSN_CLASS_ZICSR,"d,E,s",    MATCH_CSRRS, MASK_CSRRS, match_opcode, 0 },
{"csrrs",      0, INSN_CLASS_ZICSR,"d,E,Z",    MATCH_CSRRSI, MASK_CSRRSI, match_opcode, INSN_ALIAS },
{"csrrc",      0, INSN_CLASS_ZICSR,"d,E,s",    MATCH_CSRRC, MASK_CSRRC, match_opcode, 0 },
{"csrrc",      0, INSN_CLASS_ZICSR,"d,E,Z",    MATCH_CSRRCI, MASK_CSRRCI, match_opcode, INSN_ALIAS },
{"uret",       0, INSN_CLASS_I,    "",         MATCH_URET, MASK_URET, match_opcode, 0 },
{"sret",       0, INSN_CLASS_I,    "",         MATCH_SRET, MASK_SRET, match_opcode, 0 },
{"hret",       0, INSN_CLASS_I,    "",         MATCH_HRET, MASK_HRET, match_opcode, 0 },
{"mret",       0, INSN_CLASS_I,    "",         MATCH_MRET, MASK_MRET, match_opcode, 0 },
{"dret",       0, INSN_CLASS_I,    "",         MATCH_DRET, MASK_DRET, match_opcode, 0 },
{"sfence.vm",  0, INSN_CLASS_I,    "",         MATCH_SFENCE_VM, MASK_SFENCE_VM | MASK_RS1, match_opcode, 0 },
{"sfence.vm",  0, INSN_CLASS_I,    "s",        MATCH_SFENCE_VM, MASK_SFENCE_VM, match_opcode, 0 },
{"sfence.vma", 0, INSN_CLASS_I,    "",         MATCH_SFENCE_VMA, MASK_SFENCE_VMA|MASK_RS1|MASK_RS2, match_opcode, INSN_ALIAS },
{"sfence.vma", 0, INSN_CLASS_I,    "s",        MATCH_SFENCE_VMA, MASK_SFENCE_VMA|MASK_RS2, match_opcode, INSN_ALIAS },
{"sfence.vma", 0, INSN_CLASS_I,    "s,t",      MATCH_SFENCE_VMA, MASK_SFENCE_VMA, match_opcode, 0 },
{"wfi",        0, INSN_CLASS_I,    "",         MATCH_WFI, MASK_WFI, match_opcode, 0 },

/* Terminate the list.  */
{0, 0, INSN_CLASS_NONE, 0, 0, 0, 0, 0}
};

/* Instruction format for .insn directive.  */
const struct riscv_opcode riscv_insn_types[] =
{
/* name, xlen, isa, operands, match, mask, match_func, pinfo.  */
{"r",       0, INSN_CLASS_I,       "O4,F3,F7,d,s,t",    0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F7,D,s,t",    0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F7,d,S,t",    0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F7,D,S,t",    0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F7,d,s,T",    0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F7,D,s,T",    0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F7,d,S,T",    0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F7,D,S,T",    0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_I,       "O4,F3,F2,d,s,t,r",  0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F2,D,s,t,r",  0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F2,d,S,t,r",  0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F2,D,S,t,r",  0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F2,d,s,T,r",  0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F2,D,s,T,r",  0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F2,d,S,T,r",  0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F2,D,S,T,r",  0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F2,d,s,t,R",  0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F2,D,s,t,R",  0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F2,d,S,t,R",  0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F2,D,S,t,R",  0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F2,d,s,T,R",  0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F2,D,s,T,R",  0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F2,d,S,T,R",  0, 0, match_opcode, 0 },
{"r",       0, INSN_CLASS_F,       "O4,F3,F2,D,S,T,R",  0, 0, match_opcode, 0 },

{"r4",      0, INSN_CLASS_I,       "O4,F3,F2,d,s,t,r",  0, 0, match_opcode, 0 },
{"r4",      0, INSN_CLASS_F,       "O4,F3,F2,D,s,t,r",  0, 0, match_opcode, 0 },
{"r4",      0, INSN_CLASS_F,       "O4,F3,F2,d,S,t,r",  0, 0, match_opcode, 0 },
{"r4",      0, INSN_CLASS_F,       "O4,F3,F2,D,S,t,r",  0, 0, match_opcode, 0 },
{"r4",      0, INSN_CLASS_F,       "O4,F3,F2,d,s,T,r",  0, 0, match_opcode, 0 },
{"r4",      0, INSN_CLASS_F,       "O4,F3,F2,D,s,T,r",  0, 0, match_opcode, 0 },
{"r4",      0, INSN_CLASS_F,       "O4,F3,F2,d,S,T,r",  0, 0, match_opcode, 0 },
{"r4",      0, INSN_CLASS_F,       "O4,F3,F2,D,S,T,r",  0, 0, match_opcode, 0 },
{"r4",      0, INSN_CLASS_F,       "O4,F3,F2,d,s,t,R",  0, 0, match_opcode, 0 },
{"r4",      0, INSN_CLASS_F,       "O4,F3,F2,D,s,t,R",  0, 0, match_opcode, 0 },
{"r4",      0, INSN_CLASS_F,       "O4,F3,F2,d,S,t,R",  0, 0, match_opcode, 0 },
{"r4",      0, INSN_CLASS_F,       "O4,F3,F2,D,S,t,R",  0, 0, match_opcode, 0 },
{"r4",      0, INSN_CLASS_F,       "O4,F3,F2,d,s,T,R",  0, 0, match_opcode, 0 },
{"r4",      0, INSN_CLASS_F,       "O4,F3,F2,D,s,T,R",  0, 0, match_opcode, 0 },
{"r4",      0, INSN_CLASS_F,       "O4,F3,F2,d,S,T,R",  0, 0, match_opcode, 0 },
{"r4",      0, INSN_CLASS_F,       "O4,F3,F2,D,S,T,R",  0, 0, match_opcode, 0 },

{"i",       0, INSN_CLASS_I,       "O4,F3,d,s,j",       0, 0, match_opcode, 0 },
{"i",       0, INSN_CLASS_F,       "O4,F3,D,s,j",       0, 0, match_opcode, 0 },
{"i",       0, INSN_CLASS_F,       "O4,F3,d,S,j",       0, 0, match_opcode, 0 },
{"i",       0, INSN_CLASS_F,       "O4,F3,D,S,j",       0, 0, match_opcode, 0 },
{"i",       0, INSN_CLASS_I,       "O4,F3,d,o(s)",      0, 0, match_opcode, 0 },
{"i",       0, INSN_CLASS_F,       "O4,F3,D,o(s)",      0, 0, match_opcode, 0 },

{"s",       0, INSN_CLASS_I,       "O4,F3,t,q(s)",      0, 0, match_opcode, 0 },
{"s",       0, INSN_CLASS_F,       "O4,F3,T,q(s)",      0, 0, match_opcode, 0 },

{"sb",      0, INSN_CLASS_I,       "O4,F3,s,t,p",       0, 0, match_opcode, 0 },
{"sb",      0, INSN_CLASS_F,       "O4,F3,S,t,p",       0, 0, match_opcode, 0 },
{"sb",      0, INSN_CLASS_F,       "O4,F3,s,T,p",       0, 0, match_opcode, 0 },
{"sb",      0, INSN_CLASS_F,       "O4,F3,S,T,p",       0, 0, match_opcode, 0 },

{"b",       0, INSN_CLASS_I,       "O4,F3,s,t,p",       0, 0, match_opcode, 0 },
{"b",       0, INSN_CLASS_F,       "O4,F3,S,t,p",       0, 0, match_opcode, 0 },
{"b",       0, INSN_CLASS_F,       "O4,F3,s,T,p",       0, 0, match_opcode, 0 },
{"b",       0, INSN_CLASS_F,       "O4,F3,S,T,p",       0, 0, match_opcode, 0 },

{"u",       0, INSN_CLASS_I,       "O4,d,u",            0, 0, match_opcode, 0 },
{"u",       0, INSN_CLASS_F,       "O4,D,u",            0, 0, match_opcode, 0 },

{"uj",      0, INSN_CLASS_I,       "O4,d,a",            0, 0, match_opcode, 0 },
{"uj",      0, INSN_CLASS_F,       "O4,D,a",            0, 0, match_opcode, 0 },

{"j",       0, INSN_CLASS_I,       "O4,d,a",            0, 0, match_opcode, 0 },
{"j",       0, INSN_CLASS_F,       "O4,D,a",            0, 0, match_opcode, 0 },

{"cr",      0, INSN_CLASS_C,       "O2,CF4,d,CV",       0, 0, match_opcode, 0 },
{"cr",      0, INSN_CLASS_F_AND_C, "O2,CF4,D,CV",       0, 0, match_opcode, 0 },
{"cr",      0, INSN_CLASS_F_AND_C, "O2,CF4,d,CT",       0, 0, match_opcode, 0 },
{"cr",      0, INSN_CLASS_F_AND_C, "O2,CF4,D,CT",       0, 0, match_opcode, 0 },

{"ci",      0, INSN_CLASS_C,       "O2,CF3,d,Co",       0, 0, match_opcode, 0 },
{"ci",      0, INSN_CLASS_F_AND_C, "O2,CF3,D,Co",       0, 0, match_opcode, 0 },

{"ciw",     0, INSN_CLASS_C,       "O2,CF3,Ct,C8",      0, 0, match_opcode, 0 },
{"ciw",     0, INSN_CLASS_F_AND_C, "O2,CF3,CD,C8",      0, 0, match_opcode, 0 },

{"ca",      0, INSN_CLASS_C,       "O2,CF6,CF2,Cs,Ct",  0, 0, match_opcode, 0 },
{"ca",      0, INSN_CLASS_F_AND_C, "O2,CF6,CF2,CS,Ct",  0, 0, match_opcode, 0 },
{"ca",      0, INSN_CLASS_F_AND_C, "O2,CF6,CF2,Cs,CD",  0, 0, match_opcode, 0 },
{"ca",      0, INSN_CLASS_F_AND_C, "O2,CF6,CF2,CS,CD",  0, 0, match_opcode, 0 },

{"cb",      0, INSN_CLASS_C,       "O2,CF3,Cs,Cp",      0, 0, match_opcode, 0 },
{"cb",      0, INSN_CLASS_F_AND_C, "O2,CF3,CS,Cp",      0, 0, match_opcode, 0 },

{"cj",      0, INSN_CLASS_C,       "O2,CF3,Ca",         0, 0, match_opcode, 0 },

/* Terminate the list.  */
{0, 0, INSN_CLASS_NONE, 0, 0, 0, 0, 0}
};

/* All standard extensions defined in all supported ISA spec.  */
const struct riscv_ext_version riscv_ext_version_table[] =
{
/* name, ISA spec, major version, minor version.  */
{"e", ISA_SPEC_CLASS_20191213, 1, 9},
{"e", ISA_SPEC_CLASS_20190608, 1, 9},
{"e", ISA_SPEC_CLASS_2P2,      1, 9},

{"i", ISA_SPEC_CLASS_20191213, 2, 1},
{"i", ISA_SPEC_CLASS_20190608, 2, 1},
{"i", ISA_SPEC_CLASS_2P2,      2, 0},

{"m", ISA_SPEC_CLASS_20191213, 2, 0},
{"m", ISA_SPEC_CLASS_20190608, 2, 0},
{"m", ISA_SPEC_CLASS_2P2,      2, 0},

{"a", ISA_SPEC_CLASS_20191213, 2, 1},
{"a", ISA_SPEC_CLASS_20190608, 2, 0},
{"a", ISA_SPEC_CLASS_2P2,      2, 0},

{"f", ISA_SPEC_CLASS_20191213, 2, 2},
{"f", ISA_SPEC_CLASS_20190608, 2, 2},
{"f", ISA_SPEC_CLASS_2P2,      2, 0},

{"d", ISA_SPEC_CLASS_20191213, 2, 2},
{"d", ISA_SPEC_CLASS_20190608, 2, 2},
{"d", ISA_SPEC_CLASS_2P2,      2, 0},

{"q", ISA_SPEC_CLASS_20191213, 2, 2},
{"q", ISA_SPEC_CLASS_20190608, 2, 2},
{"q", ISA_SPEC_CLASS_2P2,      2, 0},

{"c", ISA_SPEC_CLASS_20191213, 2, 0},
{"c", ISA_SPEC_CLASS_20190608, 2, 0},
{"c", ISA_SPEC_CLASS_2P2,      2, 0},

{"zicsr", ISA_SPEC_CLASS_20191213, 2, 0},
{"zicsr", ISA_SPEC_CLASS_20190608, 2, 0},

{"zifencei", ISA_SPEC_CLASS_20191213, 2, 0},
{"zifencei", ISA_SPEC_CLASS_20190608, 2, 0},

{"zihintpause", ISA_SPEC_CLASS_DRAFT, 1, 0},

/* Terminate the list.  */
{NULL, 0, 0, 0}
};

struct isa_spec_t
{
  const char *name;
  enum riscv_isa_spec_class class;
};

/* List for all supported ISA spec versions.  */
static const struct isa_spec_t isa_specs[] =
{
  {"2.2",      ISA_SPEC_CLASS_2P2},
  {"20190608", ISA_SPEC_CLASS_20190608},
  {"20191213", ISA_SPEC_CLASS_20191213},

  /* Terminate the list.  */
  {NULL, 0}
};

/* Get the corresponding ISA spec class by giving a ISA spec string.  */

int
riscv_get_isa_spec_class (const char *s,
                         enum riscv_isa_spec_class *class)
{
  const struct isa_spec_t *version;

  if (s == NULL)
    return 0;

  for (version = &isa_specs[0]; version->name != NULL; ++version)
    if (strcmp (version->name, s) == 0)
      {
       *class = version->class;
       return 1;
      }

  /* Can not find the supported ISA spec.  */
  return 0;
}