diff mbox series

[09/19] RISC-V: make FP rounding mode an optional argument

Message ID bdfcf3d2-18bf-4e3a-98c6-cd0ebbf4b7d2@suse.com
State New
Headers
Series RISC-V: assorted fixes and (hopefully) improvements |

Commit Message

Jan Beulich April 21, 2026, 11:53 a.m. UTC 
  Model this after Vm (and somewhat after its VM counterpart): It's similarly
always last, and we can hence similarly reduce the number of entries in the
opcode table. The exception being FCVTMOD.W.D, where M needs using.
diff mbox series

Patch

--- a/gas/config/tc-riscv.c
+++ b/gas/config/tc-riscv.c
@@ -1592,6 +1592,7 @@  validate_riscv_insn (const struct riscv_
 	case 't': USE_BITS (OP_MASK_RS2, OP_SH_RS2); break;
 	case 'R': /* RS3, floating point.  */
 	case 'r': USE_BITS (OP_MASK_RS3, OP_SH_RS3); break;
+	case 'M':
 	case 'm': USE_BITS (OP_MASK_RM, OP_SH_RM); break;
 	case 'E': USE_BITS (OP_MASK_CSR, OP_SH_CSR); break;
 	case 'P': USE_BITS (OP_MASK_PRED, OP_SH_PRED); break;
@@ -3485,7 +3486,17 @@  riscv_ip (char *str, struct riscv_cl_ins
 		}
 	      continue;
 
-	    case 'm': /* Rounding mode.  */
+	    case 'm': /* Optional rounding mode.  */
+	      if (*asarg == '\0')
+		{
+		  INSERT_OPERAND (RM, *ip, OP_MASK_RM);
+		  continue;
+		}
+	      if (*asarg != ',')
+		break;
+	      ++asarg;
+	      /* Fall through. */
+	    case 'M': /* Rounding mode.  */
 	      if (arg_lookup (&asarg, riscv_rm,
 			      ARRAY_SIZE (riscv_rm), &regno))
 		{
--- a/opcodes/riscv-dis.c
+++ b/opcodes/riscv-dis.c
@@ -536,6 +536,11 @@  print_insn_args (const char *oparg, insn
 	  break;
 
 	case 'm':
+	  if (EXTRACT_OPERAND (RM, l) == OP_MASK_RM)
+	    break;
+	  print (info->stream, dis_style_text, ",");
+	  /* Fall through. */
+	case 'M':
 	  arg_print (info, EXTRACT_OPERAND (RM, l),
 		     riscv_rm, ARRAY_SIZE (riscv_rm));
 	  break;
--- a/opcodes/riscv-opc.c
+++ b/opcodes/riscv-opc.c
@@ -915,61 +915,40 @@  const struct riscv_opcode riscv_opcodes[
 {"fsgnj.h",    0, INSN_CLASS_ZFH_INX,   "D,S,T",     MATCH_FSGNJ_H, MASK_FSGNJ_H, match_opcode, 0 },
 {"fsgnjn.h",   0, INSN_CLASS_ZFH_INX,   "D,S,T",     MATCH_FSGNJN_H, MASK_FSGNJN_H, match_opcode, 0 },
 {"fsgnjx.h",   0, INSN_CLASS_ZFH_INX,   "D,S,T",     MATCH_FSGNJX_H, MASK_FSGNJX_H, match_opcode, 0 },
-{"fadd.h",     0, INSN_CLASS_ZFH_INX,   "D,S,T",     MATCH_FADD_H|MASK_RM, MASK_FADD_H|MASK_RM, match_opcode, 0 },
-{"fadd.h",     0, INSN_CLASS_ZFH_INX,   "D,S,T,m",   MATCH_FADD_H, MASK_FADD_H, match_opcode, 0 },
-{"fsub.h",     0, INSN_CLASS_ZFH_INX,   "D,S,T",     MATCH_FSUB_H|MASK_RM, MASK_FSUB_H|MASK_RM, match_opcode, 0 },
-{"fsub.h",     0, INSN_CLASS_ZFH_INX,   "D,S,T,m",   MATCH_FSUB_H, MASK_FSUB_H, match_opcode, 0 },
-{"fmul.h",     0, INSN_CLASS_ZFH_INX,   "D,S,T",     MATCH_FMUL_H|MASK_RM, MASK_FMUL_H|MASK_RM, match_opcode, 0 },
-{"fmul.h",     0, INSN_CLASS_ZFH_INX,   "D,S,T,m",   MATCH_FMUL_H, MASK_FMUL_H, match_opcode, 0 },
-{"fdiv.h",     0, INSN_CLASS_ZFH_INX,   "D,S,T",     MATCH_FDIV_H|MASK_RM, MASK_FDIV_H|MASK_RM, match_opcode, 0 },
-{"fdiv.h",     0, INSN_CLASS_ZFH_INX,   "D,S,T,m",   MATCH_FDIV_H, MASK_FDIV_H, match_opcode, 0 },
-{"fsqrt.h",    0, INSN_CLASS_ZFH_INX,   "D,S",       MATCH_FSQRT_H|MASK_RM, MASK_FSQRT_H|MASK_RM, match_opcode, 0 },
-{"fsqrt.h",    0, INSN_CLASS_ZFH_INX,   "D,S,m",     MATCH_FSQRT_H, MASK_FSQRT_H, match_opcode, 0 },
+{"fadd.h",     0, INSN_CLASS_ZFH_INX,  "D,S,Tm",    MATCH_FADD_H, MASK_FADD_H, match_opcode, 0 },
+{"fsub.h",     0, INSN_CLASS_ZFH_INX,  "D,S,Tm",    MATCH_FSUB_H, MASK_FSUB_H, match_opcode, 0 },
+{"fmul.h",     0, INSN_CLASS_ZFH_INX,  "D,S,Tm",    MATCH_FMUL_H, MASK_FMUL_H, match_opcode, 0 },
+{"fdiv.h",     0, INSN_CLASS_ZFH_INX,  "D,S,Tm",    MATCH_FDIV_H, MASK_FDIV_H, match_opcode, 0 },
+{"fsqrt.h",    0, INSN_CLASS_ZFH_INX,  "D,Sm",      MATCH_FSQRT_H, MASK_FSQRT_H, match_opcode, 0 },
 {"fmin.h",     0, INSN_CLASS_ZFH_INX,   "D,S,T",     MATCH_FMIN_H, MASK_FMIN_H, match_opcode, 0 },
 {"fmax.h",     0, INSN_CLASS_ZFH_INX,   "D,S,T",     MATCH_FMAX_H, MASK_FMAX_H, match_opcode, 0 },
-{"fmadd.h",    0, INSN_CLASS_ZFH_INX,   "D,S,T,R",   MATCH_FMADD_H|MASK_RM, MASK_FMADD_H|MASK_RM, match_opcode, 0 },
-{"fmadd.h",    0, INSN_CLASS_ZFH_INX,   "D,S,T,R,m", MATCH_FMADD_H, MASK_FMADD_H, match_opcode, 0 },
-{"fnmadd.h",   0, INSN_CLASS_ZFH_INX,   "D,S,T,R",   MATCH_FNMADD_H|MASK_RM, MASK_FNMADD_H|MASK_RM, match_opcode, 0 },
-{"fnmadd.h",   0, INSN_CLASS_ZFH_INX,   "D,S,T,R,m", MATCH_FNMADD_H, MASK_FNMADD_H, match_opcode, 0 },
-{"fmsub.h",    0, INSN_CLASS_ZFH_INX,   "D,S,T,R",   MATCH_FMSUB_H|MASK_RM, MASK_FMSUB_H|MASK_RM, match_opcode, 0 },
-{"fmsub.h",    0, INSN_CLASS_ZFH_INX,   "D,S,T,R,m", MATCH_FMSUB_H, MASK_FMSUB_H, match_opcode, 0 },
-{"fnmsub.h",   0, INSN_CLASS_ZFH_INX,   "D,S,T,R",   MATCH_FNMSUB_H|MASK_RM, MASK_FNMSUB_H|MASK_RM, match_opcode, 0 },
-{"fnmsub.h",   0, INSN_CLASS_ZFH_INX,   "D,S,T,R,m", MATCH_FNMSUB_H, MASK_FNMSUB_H, match_opcode, 0 },
-{"fcvt.w.h",   0, INSN_CLASS_ZFH_INX,   "d,S",       MATCH_FCVT_W_H|MASK_RM, MASK_FCVT_W_H|MASK_RM, match_opcode, 0 },
-{"fcvt.w.h",   0, INSN_CLASS_ZFH_INX,   "d,S,m",     MATCH_FCVT_W_H, MASK_FCVT_W_H, match_opcode, 0 },
-{"fcvt.wu.h",  0, INSN_CLASS_ZFH_INX,   "d,S",       MATCH_FCVT_WU_H|MASK_RM, MASK_FCVT_WU_H|MASK_RM, match_opcode, 0 },
-{"fcvt.wu.h",  0, INSN_CLASS_ZFH_INX,   "d,S,m",     MATCH_FCVT_WU_H, MASK_FCVT_WU_H, match_opcode, 0 },
-{"fcvt.h.w",   0, INSN_CLASS_ZFH_INX,   "D,s",       MATCH_FCVT_H_W|MASK_RM, MASK_FCVT_H_W|MASK_RM, match_opcode, 0 },
-{"fcvt.h.w",   0, INSN_CLASS_ZFH_INX,   "D,s,m",     MATCH_FCVT_H_W, MASK_FCVT_H_W, match_opcode, 0 },
-{"fcvt.h.wu",  0, INSN_CLASS_ZFH_INX,   "D,s",       MATCH_FCVT_H_WU|MASK_RM, MASK_FCVT_H_WU|MASK_RM, match_opcode, 0 },
-{"fcvt.h.wu",  0, INSN_CLASS_ZFH_INX,   "D,s,m",     MATCH_FCVT_H_WU, MASK_FCVT_H_WU, match_opcode, 0 },
+{"fmadd.h",    0, INSN_CLASS_ZFH_INX,  "D,S,T,Rm",  MATCH_FMADD_H, MASK_FMADD_H, match_opcode, 0 },
+{"fnmadd.h",   0, INSN_CLASS_ZFH_INX,  "D,S,T,Rm",  MATCH_FNMADD_H, MASK_FNMADD_H, match_opcode, 0 },
+{"fmsub.h",    0, INSN_CLASS_ZFH_INX,  "D,S,T,Rm",  MATCH_FMSUB_H, MASK_FMSUB_H, match_opcode, 0 },
+{"fnmsub.h",   0, INSN_CLASS_ZFH_INX,  "D,S,T,Rm",  MATCH_FNMSUB_H, MASK_FNMSUB_H, match_opcode, 0 },
+{"fcvt.w.h",   0, INSN_CLASS_ZFH_INX,  "d,Sm",      MATCH_FCVT_W_H, MASK_FCVT_W_H, match_opcode, 0 },
+{"fcvt.wu.h",  0, INSN_CLASS_ZFH_INX,  "d,Sm",      MATCH_FCVT_WU_H, MASK_FCVT_WU_H, match_opcode, 0 },
+{"fcvt.h.w",   0, INSN_CLASS_ZFH_INX,  "D,sm",      MATCH_FCVT_H_W, MASK_FCVT_H_W, match_opcode, 0 },
+{"fcvt.h.wu",  0, INSN_CLASS_ZFH_INX,  "D,sm",      MATCH_FCVT_H_WU, MASK_FCVT_H_WU, match_opcode, 0 },
 {"fcvt.s.h",   0, INSN_CLASS_ZFHMIN_INX, "D,S",     MATCH_FCVT_S_H, MASK_FCVT_S_H|MASK_RM, match_opcode, 0 },
 {"fcvt.d.h",   0, INSN_CLASS_ZFHMIN_AND_D_INX,     "D,S",       MATCH_FCVT_D_H, MASK_FCVT_D_H|MASK_RM, match_opcode, 0 },
 {"fcvt.q.h",   0, INSN_CLASS_ZFHMIN_AND_Q_INX,     "D,S",       MATCH_FCVT_Q_H, MASK_FCVT_Q_H|MASK_RM, match_opcode, 0 },
-{"fcvt.h.s",   0, INSN_CLASS_ZFHMIN_INX, "D,S",     MATCH_FCVT_H_S|MASK_RM, MASK_FCVT_H_S|MASK_RM, match_opcode, 0 },
-{"fcvt.h.s",   0, INSN_CLASS_ZFHMIN_INX, "D,S,m",   MATCH_FCVT_H_S, MASK_FCVT_H_S, match_opcode, 0 },
-{"fcvt.h.d",   0, INSN_CLASS_ZFHMIN_AND_D_INX,     "D,S",       MATCH_FCVT_H_D|MASK_RM, MASK_FCVT_H_D|MASK_RM, match_opcode, 0 },
-{"fcvt.h.d",   0, INSN_CLASS_ZFHMIN_AND_D_INX,     "D,S,m",     MATCH_FCVT_H_D, MASK_FCVT_H_D, match_opcode, 0 },
-{"fcvt.h.q",   0, INSN_CLASS_ZFHMIN_AND_Q_INX,     "D,S",       MATCH_FCVT_H_Q|MASK_RM, MASK_FCVT_H_Q|MASK_RM, match_opcode, 0 },
-{"fcvt.h.q",   0, INSN_CLASS_ZFHMIN_AND_Q_INX,     "D,S,m",     MATCH_FCVT_H_Q, MASK_FCVT_H_Q, match_opcode, 0 },
+{"fcvt.h.s",   0, INSN_CLASS_ZFHMIN_INX, "D,Sm",    MATCH_FCVT_H_S, MASK_FCVT_H_S, match_opcode, 0 },
+{"fcvt.h.d",   0, INSN_CLASS_ZFHMIN_AND_D_INX, "D,Sm", MATCH_FCVT_H_D, MASK_FCVT_H_D, match_opcode, 0 },
+{"fcvt.h.q",   0, INSN_CLASS_ZFHMIN_AND_Q_INX, "D,Sm", MATCH_FCVT_H_Q, MASK_FCVT_H_Q, match_opcode, 0 },
 {"fclass.h",   0, INSN_CLASS_ZFH_INX,   "d,S",       MATCH_FCLASS_H, MASK_FCLASS_H, match_opcode, 0 },
 {"feq.h",      0, INSN_CLASS_ZFH_INX,   "d,S,T",     MATCH_FEQ_H, MASK_FEQ_H, match_opcode, 0 },
 {"flt.h",      0, INSN_CLASS_ZFH_INX,   "d,S,T",     MATCH_FLT_H, MASK_FLT_H, match_opcode, 0 },
 {"fle.h",      0, INSN_CLASS_ZFH_INX,   "d,S,T",     MATCH_FLE_H, MASK_FLE_H, match_opcode, 0 },
 {"fgt.h",      0, INSN_CLASS_ZFH_INX,   "d,T,S",     MATCH_FLT_H, MASK_FLT_H, match_opcode, INSN_ALIAS },
 {"fge.h",      0, INSN_CLASS_ZFH_INX,   "d,T,S",     MATCH_FLE_H, MASK_FLE_H, match_opcode, INSN_ALIAS },
-{"fcvt.l.h",  64, INSN_CLASS_ZFH_INX,   "d,S",       MATCH_FCVT_L_H|MASK_RM, MASK_FCVT_L_H|MASK_RM, match_opcode, 0 },
-{"fcvt.l.h",  64, INSN_CLASS_ZFH_INX,   "d,S,m",     MATCH_FCVT_L_H, MASK_FCVT_L_H, match_opcode, 0 },
-{"fcvt.lu.h", 64, INSN_CLASS_ZFH_INX,   "d,S",       MATCH_FCVT_LU_H|MASK_RM, MASK_FCVT_LU_H|MASK_RM, match_opcode, 0 },
-{"fcvt.lu.h", 64, INSN_CLASS_ZFH_INX,   "d,S,m",     MATCH_FCVT_LU_H, MASK_FCVT_LU_H, match_opcode, 0 },
-{"fcvt.h.l",  64, INSN_CLASS_ZFH_INX,   "D,s",       MATCH_FCVT_H_L|MASK_RM, MASK_FCVT_H_L|MASK_RM, match_opcode, 0 },
-{"fcvt.h.l",  64, INSN_CLASS_ZFH_INX,   "D,s,m",     MATCH_FCVT_H_L, MASK_FCVT_H_L, match_opcode, 0 },
-{"fcvt.h.lu", 64, INSN_CLASS_ZFH_INX,   "D,s",       MATCH_FCVT_H_LU|MASK_RM, MASK_FCVT_H_LU|MASK_RM, match_opcode, 0 },
-{"fcvt.h.lu", 64, INSN_CLASS_ZFH_INX,   "D,s,m",     MATCH_FCVT_H_LU, MASK_FCVT_H_LU, match_opcode, 0 },
+{"fcvt.l.h",  64, INSN_CLASS_ZFH_INX,  "d,Sm",      MATCH_FCVT_L_H, MASK_FCVT_L_H, match_opcode, 0 },
+{"fcvt.lu.h", 64, INSN_CLASS_ZFH_INX,  "d,Sm",      MATCH_FCVT_LU_H, MASK_FCVT_LU_H, match_opcode, 0 },
+{"fcvt.h.l",  64, INSN_CLASS_ZFH_INX,  "D,sm",      MATCH_FCVT_H_L, MASK_FCVT_H_L, match_opcode, 0 },
+{"fcvt.h.lu", 64, INSN_CLASS_ZFH_INX,  "D,sm",      MATCH_FCVT_H_LU, MASK_FCVT_H_LU, match_opcode, 0 },
 
 /* Zfbfmin instructions.  */
-{"fcvt.bf16.s", 0, INSN_CLASS_ZFBFMIN, "D,S",   MATCH_FCVT_BF16_S|MASK_RM, MASK_FCVT_BF16_S|MASK_RM, match_opcode, 0 },
-{"fcvt.bf16.s", 0, INSN_CLASS_ZFBFMIN, "D,S,m", MATCH_FCVT_BF16_S, MASK_FCVT_BF16_S, match_opcode, 0 },
+{"fcvt.bf16.s", 0, INSN_CLASS_ZFBFMIN, "D,Sm",  MATCH_FCVT_BF16_S, MASK_FCVT_BF16_S, match_opcode, 0 },
 {"fcvt.s.bf16", 0, INSN_CLASS_ZFBFMIN, "D,S",   MATCH_FCVT_S_BF16, MASK_FCVT_S_BF16|MASK_RM, match_opcode, 0 },
 
 /* Single-precision floating-point instruction subset.  */
@@ -1007,48 +986,31 @@  const struct riscv_opcode riscv_opcodes[
 {"fsgnj.s",    0, INSN_CLASS_F_INX,   "D,S,T",     MATCH_FSGNJ_S, MASK_FSGNJ_S, match_opcode, 0 },
 {"fsgnjn.s",   0, INSN_CLASS_F_INX,   "D,S,T",     MATCH_FSGNJN_S, MASK_FSGNJN_S, match_opcode, 0 },
 {"fsgnjx.s",   0, INSN_CLASS_F_INX,   "D,S,T",     MATCH_FSGNJX_S, MASK_FSGNJX_S, match_opcode, 0 },
-{"fadd.s",     0, INSN_CLASS_F_INX,   "D,S,T",     MATCH_FADD_S|MASK_RM, MASK_FADD_S|MASK_RM, match_opcode, 0 },
-{"fadd.s",     0, INSN_CLASS_F_INX,   "D,S,T,m",   MATCH_FADD_S, MASK_FADD_S, match_opcode, 0 },
-{"fsub.s",     0, INSN_CLASS_F_INX,   "D,S,T",     MATCH_FSUB_S|MASK_RM, MASK_FSUB_S|MASK_RM, match_opcode, 0 },
-{"fsub.s",     0, INSN_CLASS_F_INX,   "D,S,T,m",   MATCH_FSUB_S, MASK_FSUB_S, match_opcode, 0 },
-{"fmul.s",     0, INSN_CLASS_F_INX,   "D,S,T",     MATCH_FMUL_S|MASK_RM, MASK_FMUL_S|MASK_RM, match_opcode, 0 },
-{"fmul.s",     0, INSN_CLASS_F_INX,   "D,S,T,m",   MATCH_FMUL_S, MASK_FMUL_S, match_opcode, 0 },
-{"fdiv.s",     0, INSN_CLASS_F_INX,   "D,S,T",     MATCH_FDIV_S|MASK_RM, MASK_FDIV_S|MASK_RM, match_opcode, 0 },
-{"fdiv.s",     0, INSN_CLASS_F_INX,   "D,S,T,m",   MATCH_FDIV_S, MASK_FDIV_S, match_opcode, 0 },
-{"fsqrt.s",    0, INSN_CLASS_F_INX,   "D,S",       MATCH_FSQRT_S|MASK_RM, MASK_FSQRT_S|MASK_RM, match_opcode, 0 },
-{"fsqrt.s",    0, INSN_CLASS_F_INX,   "D,S,m",     MATCH_FSQRT_S, MASK_FSQRT_S, match_opcode, 0 },
+{"fadd.s",     0, INSN_CLASS_F_INX,   "D,S,Tm",    MATCH_FADD_S, MASK_FADD_S, match_opcode, 0 },
+{"fsub.s",     0, INSN_CLASS_F_INX,   "D,S,Tm",    MATCH_FSUB_S, MASK_FSUB_S, match_opcode, 0 },
+{"fmul.s",     0, INSN_CLASS_F_INX,   "D,S,Tm",    MATCH_FMUL_S, MASK_FMUL_S, match_opcode, 0 },
+{"fdiv.s",     0, INSN_CLASS_F_INX,   "D,S,Tm",    MATCH_FDIV_S, MASK_FDIV_S, match_opcode, 0 },
+{"fsqrt.s",    0, INSN_CLASS_F_INX,   "D,Sm",      MATCH_FSQRT_S, MASK_FSQRT_S, match_opcode, 0 },
 {"fmin.s",     0, INSN_CLASS_F_INX,   "D,S,T",     MATCH_FMIN_S, MASK_FMIN_S, match_opcode, 0 },
 {"fmax.s",     0, INSN_CLASS_F_INX,   "D,S,T",     MATCH_FMAX_S, MASK_FMAX_S, match_opcode, 0 },
-{"fmadd.s",    0, INSN_CLASS_F_INX,   "D,S,T,R",   MATCH_FMADD_S|MASK_RM, MASK_FMADD_S|MASK_RM, match_opcode, 0 },
-{"fmadd.s",    0, INSN_CLASS_F_INX,   "D,S,T,R,m", MATCH_FMADD_S, MASK_FMADD_S, match_opcode, 0 },
-{"fnmadd.s",   0, INSN_CLASS_F_INX,   "D,S,T,R",   MATCH_FNMADD_S|MASK_RM, MASK_FNMADD_S|MASK_RM, match_opcode, 0 },
-{"fnmadd.s",   0, INSN_CLASS_F_INX,   "D,S,T,R,m", MATCH_FNMADD_S, MASK_FNMADD_S, match_opcode, 0 },
-{"fmsub.s",    0, INSN_CLASS_F_INX,   "D,S,T,R",   MATCH_FMSUB_S|MASK_RM, MASK_FMSUB_S|MASK_RM, match_opcode, 0 },
-{"fmsub.s",    0, INSN_CLASS_F_INX,   "D,S,T,R,m", MATCH_FMSUB_S, MASK_FMSUB_S, match_opcode, 0 },
-{"fnmsub.s",   0, INSN_CLASS_F_INX,   "D,S,T,R",   MATCH_FNMSUB_S|MASK_RM, MASK_FNMSUB_S|MASK_RM, match_opcode, 0 },
-{"fnmsub.s",   0, INSN_CLASS_F_INX,   "D,S,T,R,m", MATCH_FNMSUB_S, MASK_FNMSUB_S, match_opcode, 0 },
-{"fcvt.w.s",   0, INSN_CLASS_F_INX,   "d,S",       MATCH_FCVT_W_S|MASK_RM, MASK_FCVT_W_S|MASK_RM, match_opcode, 0 },
-{"fcvt.w.s",   0, INSN_CLASS_F_INX,   "d,S,m",     MATCH_FCVT_W_S, MASK_FCVT_W_S, match_opcode, 0 },
-{"fcvt.wu.s",  0, INSN_CLASS_F_INX,   "d,S",       MATCH_FCVT_WU_S|MASK_RM, MASK_FCVT_WU_S|MASK_RM, match_opcode, 0 },
-{"fcvt.wu.s",  0, INSN_CLASS_F_INX,   "d,S,m",     MATCH_FCVT_WU_S, MASK_FCVT_WU_S, match_opcode, 0 },
-{"fcvt.s.w",   0, INSN_CLASS_F_INX,   "D,s",       MATCH_FCVT_S_W|MASK_RM, MASK_FCVT_S_W|MASK_RM, match_opcode, 0 },
-{"fcvt.s.w",   0, INSN_CLASS_F_INX,   "D,s,m",     MATCH_FCVT_S_W, MASK_FCVT_S_W, match_opcode, 0 },
-{"fcvt.s.wu",  0, INSN_CLASS_F_INX,   "D,s",       MATCH_FCVT_S_WU|MASK_RM, MASK_FCVT_S_WU|MASK_RM, match_opcode, 0 },
-{"fcvt.s.wu",  0, INSN_CLASS_F_INX,   "D,s,m",     MATCH_FCVT_S_WU, MASK_FCVT_S_WU, match_opcode, 0 },
+{"fmadd.s",    0, INSN_CLASS_F_INX,   "D,S,T,Rm",  MATCH_FMADD_S, MASK_FMADD_S, match_opcode, 0 },
+{"fnmadd.s",   0, INSN_CLASS_F_INX,   "D,S,T,Rm",  MATCH_FNMADD_S, MASK_FNMADD_S, match_opcode, 0 },
+{"fmsub.s",    0, INSN_CLASS_F_INX,   "D,S,T,Rm",  MATCH_FMSUB_S, MASK_FMSUB_S, match_opcode, 0 },
+{"fnmsub.s",   0, INSN_CLASS_F_INX,   "D,S,T,Rm",  MATCH_FNMSUB_S, MASK_FNMSUB_S, match_opcode, 0 },
+{"fcvt.w.s",   0, INSN_CLASS_F_INX,   "d,Sm",      MATCH_FCVT_W_S, MASK_FCVT_W_S, match_opcode, 0 },
+{"fcvt.wu.s",  0, INSN_CLASS_F_INX,   "d,Sm",      MATCH_FCVT_WU_S, MASK_FCVT_WU_S, match_opcode, 0 },
+{"fcvt.s.w",   0, INSN_CLASS_F_INX,   "D,sm",      MATCH_FCVT_S_W, MASK_FCVT_S_W, match_opcode, 0 },
+{"fcvt.s.wu",  0, INSN_CLASS_F_INX,   "D,sm",      MATCH_FCVT_S_WU, MASK_FCVT_S_WU, match_opcode, 0 },
 {"fclass.s",   0, INSN_CLASS_F_INX,   "d,S",       MATCH_FCLASS_S, MASK_FCLASS_S, match_opcode, 0 },
 {"feq.s",      0, INSN_CLASS_F_INX,   "d,S,T",     MATCH_FEQ_S, MASK_FEQ_S, match_opcode, 0 },
 {"flt.s",      0, INSN_CLASS_F_INX,   "d,S,T",     MATCH_FLT_S, MASK_FLT_S, match_opcode, 0 },
 {"fle.s",      0, INSN_CLASS_F_INX,   "d,S,T",     MATCH_FLE_S, MASK_FLE_S, match_opcode, 0 },
 {"fgt.s",      0, INSN_CLASS_F_INX,   "d,T,S",     MATCH_FLT_S, MASK_FLT_S, match_opcode, INSN_ALIAS },
 {"fge.s",      0, INSN_CLASS_F_INX,   "d,T,S",     MATCH_FLE_S, MASK_FLE_S, match_opcode, INSN_ALIAS },
-{"fcvt.l.s",  64, INSN_CLASS_F_INX,   "d,S",       MATCH_FCVT_L_S|MASK_RM, MASK_FCVT_L_S|MASK_RM, match_opcode, 0 },
-{"fcvt.l.s",  64, INSN_CLASS_F_INX,   "d,S,m",     MATCH_FCVT_L_S, MASK_FCVT_L_S, match_opcode, 0 },
-{"fcvt.lu.s", 64, INSN_CLASS_F_INX,   "d,S",       MATCH_FCVT_LU_S|MASK_RM, MASK_FCVT_LU_S|MASK_RM, match_opcode, 0 },
-{"fcvt.lu.s", 64, INSN_CLASS_F_INX,   "d,S,m",     MATCH_FCVT_LU_S, MASK_FCVT_LU_S, match_opcode, 0 },
-{"fcvt.s.l",  64, INSN_CLASS_F_INX,   "D,s",       MATCH_FCVT_S_L|MASK_RM, MASK_FCVT_S_L|MASK_RM, match_opcode, 0 },
-{"fcvt.s.l",  64, INSN_CLASS_F_INX,   "D,s,m",     MATCH_FCVT_S_L, MASK_FCVT_S_L, match_opcode, 0 },
-{"fcvt.s.lu", 64, INSN_CLASS_F_INX,   "D,s",       MATCH_FCVT_S_LU|MASK_RM, MASK_FCVT_S_LU|MASK_RM, match_opcode, 0 },
-{"fcvt.s.lu", 64, INSN_CLASS_F_INX,   "D,s,m",     MATCH_FCVT_S_LU, MASK_FCVT_S_LU, match_opcode, 0 },
+{"fcvt.l.s",  64, INSN_CLASS_F_INX,   "d,Sm",      MATCH_FCVT_L_S, MASK_FCVT_L_S, match_opcode, 0 },
+{"fcvt.lu.s", 64, INSN_CLASS_F_INX,   "d,Sm",      MATCH_FCVT_LU_S, MASK_FCVT_LU_S, match_opcode, 0 },
+{"fcvt.s.l",  64, INSN_CLASS_F_INX,   "D,sm",      MATCH_FCVT_S_L, MASK_FCVT_S_L, match_opcode, 0 },
+{"fcvt.s.lu", 64, INSN_CLASS_F_INX,   "D,sm",      MATCH_FCVT_S_LU, MASK_FCVT_S_LU, match_opcode, 0 },
 
 /* Double-precision floating-point instruction subset.  */
 {"fld",        0, INSN_CLASS_ZCD, "D,Cn(Cc)",  MATCH_C_FLDSP, MASK_C_FLDSP, match_opcode, INSN_ALIAS|INSN_DREF|INSN_8_BYTE },
@@ -1065,35 +1027,23 @@  const struct riscv_opcode riscv_opcodes[
 {"fsgnj.d",    0, INSN_CLASS_D_INX,   "D,S,T",     MATCH_FSGNJ_D, MASK_FSGNJ_D, match_opcode, 0 },
 {"fsgnjn.d",   0, INSN_CLASS_D_INX,   "D,S,T",     MATCH_FSGNJN_D, MASK_FSGNJN_D, match_opcode, 0 },
 {"fsgnjx.d",   0, INSN_CLASS_D_INX,   "D,S,T",     MATCH_FSGNJX_D, MASK_FSGNJX_D, match_opcode, 0 },
-{"fadd.d",     0, INSN_CLASS_D_INX,   "D,S,T",     MATCH_FADD_D|MASK_RM, MASK_FADD_D|MASK_RM, match_opcode, 0 },
-{"fadd.d",     0, INSN_CLASS_D_INX,   "D,S,T,m",   MATCH_FADD_D, MASK_FADD_D, match_opcode, 0 },
-{"fsub.d",     0, INSN_CLASS_D_INX,   "D,S,T",     MATCH_FSUB_D|MASK_RM, MASK_FSUB_D|MASK_RM, match_opcode, 0 },
-{"fsub.d",     0, INSN_CLASS_D_INX,   "D,S,T,m",   MATCH_FSUB_D, MASK_FSUB_D, match_opcode, 0 },
-{"fmul.d",     0, INSN_CLASS_D_INX,   "D,S,T",     MATCH_FMUL_D|MASK_RM, MASK_FMUL_D|MASK_RM, match_opcode, 0 },
-{"fmul.d",     0, INSN_CLASS_D_INX,   "D,S,T,m",   MATCH_FMUL_D, MASK_FMUL_D, match_opcode, 0 },
-{"fdiv.d",     0, INSN_CLASS_D_INX,   "D,S,T",     MATCH_FDIV_D|MASK_RM, MASK_FDIV_D|MASK_RM, match_opcode, 0 },
-{"fdiv.d",     0, INSN_CLASS_D_INX,   "D,S,T,m",   MATCH_FDIV_D, MASK_FDIV_D, match_opcode, 0 },
-{"fsqrt.d",    0, INSN_CLASS_D_INX,   "D,S",       MATCH_FSQRT_D|MASK_RM, MASK_FSQRT_D|MASK_RM, match_opcode, 0 },
-{"fsqrt.d",    0, INSN_CLASS_D_INX,   "D,S,m",     MATCH_FSQRT_D, MASK_FSQRT_D, match_opcode, 0 },
+{"fadd.d",     0, INSN_CLASS_D_INX,   "D,S,Tm",    MATCH_FADD_D, MASK_FADD_D, match_opcode, 0 },
+{"fsub.d",     0, INSN_CLASS_D_INX,   "D,S,Tm",    MATCH_FSUB_D, MASK_FSUB_D, match_opcode, 0 },
+{"fmul.d",     0, INSN_CLASS_D_INX,   "D,S,Tm",    MATCH_FMUL_D, MASK_FMUL_D, match_opcode, 0 },
+{"fdiv.d",     0, INSN_CLASS_D_INX,   "D,S,Tm",    MATCH_FDIV_D, MASK_FDIV_D, match_opcode, 0 },
+{"fsqrt.d",    0, INSN_CLASS_D_INX,   "D,Sm",      MATCH_FSQRT_D, MASK_FSQRT_D, match_opcode, 0 },
 {"fmin.d",     0, INSN_CLASS_D_INX,   "D,S,T",     MATCH_FMIN_D, MASK_FMIN_D, match_opcode, 0 },
 {"fmax.d",     0, INSN_CLASS_D_INX,   "D,S,T",     MATCH_FMAX_D, MASK_FMAX_D, match_opcode, 0 },
-{"fmadd.d",    0, INSN_CLASS_D_INX,   "D,S,T,R",   MATCH_FMADD_D|MASK_RM, MASK_FMADD_D|MASK_RM, match_opcode, 0 },
-{"fmadd.d",    0, INSN_CLASS_D_INX,   "D,S,T,R,m", MATCH_FMADD_D, MASK_FMADD_D, match_opcode, 0 },
-{"fnmadd.d",   0, INSN_CLASS_D_INX,   "D,S,T,R",   MATCH_FNMADD_D|MASK_RM, MASK_FNMADD_D|MASK_RM, match_opcode, 0 },
-{"fnmadd.d",   0, INSN_CLASS_D_INX,   "D,S,T,R,m", MATCH_FNMADD_D, MASK_FNMADD_D, match_opcode, 0 },
-{"fmsub.d",    0, INSN_CLASS_D_INX,   "D,S,T,R",   MATCH_FMSUB_D|MASK_RM, MASK_FMSUB_D|MASK_RM, match_opcode, 0 },
-{"fmsub.d",    0, INSN_CLASS_D_INX,   "D,S,T,R,m", MATCH_FMSUB_D, MASK_FMSUB_D, match_opcode, 0 },
-{"fnmsub.d",   0, INSN_CLASS_D_INX,   "D,S,T,R",   MATCH_FNMSUB_D|MASK_RM, MASK_FNMSUB_D|MASK_RM, match_opcode, 0 },
-{"fnmsub.d",   0, INSN_CLASS_D_INX,   "D,S,T,R,m", MATCH_FNMSUB_D, MASK_FNMSUB_D, match_opcode, 0 },
-{"fcvt.w.d",   0, INSN_CLASS_D_INX,   "d,S",       MATCH_FCVT_W_D|MASK_RM, MASK_FCVT_W_D|MASK_RM, match_opcode, 0 },
-{"fcvt.w.d",   0, INSN_CLASS_D_INX,   "d,S,m",     MATCH_FCVT_W_D, MASK_FCVT_W_D, match_opcode, 0 },
-{"fcvt.wu.d",  0, INSN_CLASS_D_INX,   "d,S",       MATCH_FCVT_WU_D|MASK_RM, MASK_FCVT_WU_D|MASK_RM, match_opcode, 0 },
-{"fcvt.wu.d",  0, INSN_CLASS_D_INX,   "d,S,m",     MATCH_FCVT_WU_D, MASK_FCVT_WU_D, match_opcode, 0 },
+{"fmadd.d",    0, INSN_CLASS_D_INX,   "D,S,T,Rm",  MATCH_FMADD_D, MASK_FMADD_D, match_opcode, 0 },
+{"fnmadd.d",   0, INSN_CLASS_D_INX,   "D,S,T,Rm",  MATCH_FNMADD_D, MASK_FNMADD_D, match_opcode, 0 },
+{"fmsub.d",    0, INSN_CLASS_D_INX,   "D,S,T,Rm",  MATCH_FMSUB_D, MASK_FMSUB_D, match_opcode, 0 },
+{"fnmsub.d",   0, INSN_CLASS_D_INX,   "D,S,T,Rm",  MATCH_FNMSUB_D, MASK_FNMSUB_D, match_opcode, 0 },
+{"fcvt.w.d",   0, INSN_CLASS_D_INX,   "d,Sm",      MATCH_FCVT_W_D, MASK_FCVT_W_D, match_opcode, 0 },
+{"fcvt.wu.d",  0, INSN_CLASS_D_INX,   "d,Sm",      MATCH_FCVT_WU_D, MASK_FCVT_WU_D, match_opcode, 0 },
 {"fcvt.d.w",   0, INSN_CLASS_D_INX,   "D,s",       MATCH_FCVT_D_W, MASK_FCVT_D_W|MASK_RM, match_opcode, 0 },
 {"fcvt.d.wu",  0, INSN_CLASS_D_INX,   "D,s",       MATCH_FCVT_D_WU, MASK_FCVT_D_WU|MASK_RM, match_opcode, 0 },
 {"fcvt.d.s",   0, INSN_CLASS_D_INX,   "D,S",       MATCH_FCVT_D_S, MASK_FCVT_D_S|MASK_RM, match_opcode, 0 },
-{"fcvt.s.d",   0, INSN_CLASS_D_INX,   "D,S",       MATCH_FCVT_S_D|MASK_RM, MASK_FCVT_S_D|MASK_RM, match_opcode, 0 },
-{"fcvt.s.d",   0, INSN_CLASS_D_INX,   "D,S,m",     MATCH_FCVT_S_D, MASK_FCVT_S_D, match_opcode, 0 },
+{"fcvt.s.d",   0, INSN_CLASS_D_INX,   "D,Sm",      MATCH_FCVT_S_D, MASK_FCVT_S_D, match_opcode, 0 },
 {"fclass.d",   0, INSN_CLASS_D_INX,   "d,S",       MATCH_FCLASS_D, MASK_FCLASS_D, match_opcode, 0 },
 {"feq.d",      0, INSN_CLASS_D_INX,   "d,S,T",     MATCH_FEQ_D, MASK_FEQ_D, match_opcode, 0 },
 {"flt.d",      0, INSN_CLASS_D_INX,   "d,S,T",     MATCH_FLT_D, MASK_FLT_D, match_opcode, 0 },
@@ -1102,14 +1052,10 @@  const struct riscv_opcode riscv_opcodes[
 {"fge.d",      0, INSN_CLASS_D_INX,   "d,T,S",     MATCH_FLE_D, MASK_FLE_D, match_opcode, INSN_ALIAS },
 {"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_INX,   "d,S",       MATCH_FCVT_L_D|MASK_RM, MASK_FCVT_L_D|MASK_RM, match_opcode, 0 },
-{"fcvt.l.d",  64, INSN_CLASS_D_INX,   "d,S,m",     MATCH_FCVT_L_D, MASK_FCVT_L_D, match_opcode, 0 },
-{"fcvt.lu.d", 64, INSN_CLASS_D_INX,   "d,S",       MATCH_FCVT_LU_D|MASK_RM, MASK_FCVT_LU_D|MASK_RM, match_opcode, 0 },
-{"fcvt.lu.d", 64, INSN_CLASS_D_INX,   "d,S,m",     MATCH_FCVT_LU_D, MASK_FCVT_LU_D, match_opcode, 0 },
-{"fcvt.d.l",  64, INSN_CLASS_D_INX,   "D,s",       MATCH_FCVT_D_L|MASK_RM, MASK_FCVT_D_L|MASK_RM, match_opcode, 0 },
-{"fcvt.d.l",  64, INSN_CLASS_D_INX,   "D,s,m",     MATCH_FCVT_D_L, MASK_FCVT_D_L, match_opcode, 0 },
-{"fcvt.d.lu", 64, INSN_CLASS_D_INX,   "D,s",       MATCH_FCVT_D_LU|MASK_RM, MASK_FCVT_D_LU|MASK_RM, match_opcode, 0 },
-{"fcvt.d.lu", 64, INSN_CLASS_D_INX,   "D,s,m",     MATCH_FCVT_D_LU, MASK_FCVT_D_LU, match_opcode, 0 },
+{"fcvt.l.d",  64, INSN_CLASS_D_INX,   "d,Sm",      MATCH_FCVT_L_D, MASK_FCVT_L_D, match_opcode, 0 },
+{"fcvt.lu.d", 64, INSN_CLASS_D_INX,   "d,Sm",      MATCH_FCVT_LU_D, MASK_FCVT_LU_D, match_opcode, 0 },
+{"fcvt.d.l",  64, INSN_CLASS_D_INX,   "D,sm",      MATCH_FCVT_D_L, MASK_FCVT_D_L, match_opcode, 0 },
+{"fcvt.d.lu", 64, INSN_CLASS_D_INX,   "D,sm",      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 },
@@ -1122,48 +1068,33 @@  const struct riscv_opcode riscv_opcodes[
 {"fsgnj.q",    0, INSN_CLASS_Q_INX,   "D,S,T",     MATCH_FSGNJ_Q, MASK_FSGNJ_Q, match_opcode, 0 },
 {"fsgnjn.q",   0, INSN_CLASS_Q_INX,   "D,S,T",     MATCH_FSGNJN_Q, MASK_FSGNJN_Q, match_opcode, 0 },
 {"fsgnjx.q",   0, INSN_CLASS_Q_INX,   "D,S,T",     MATCH_FSGNJX_Q, MASK_FSGNJX_Q, match_opcode, 0 },
-{"fadd.q",     0, INSN_CLASS_Q_INX,   "D,S,T",     MATCH_FADD_Q|MASK_RM, MASK_FADD_Q|MASK_RM, match_opcode, 0 },
-{"fadd.q",     0, INSN_CLASS_Q_INX,   "D,S,T,m",   MATCH_FADD_Q, MASK_FADD_Q, match_opcode, 0 },
-{"fsub.q",     0, INSN_CLASS_Q_INX,   "D,S,T",     MATCH_FSUB_Q|MASK_RM, MASK_FSUB_Q|MASK_RM, match_opcode, 0 },
-{"fsub.q",     0, INSN_CLASS_Q_INX,   "D,S,T,m",   MATCH_FSUB_Q, MASK_FSUB_Q, match_opcode, 0 },
-{"fmul.q",     0, INSN_CLASS_Q_INX,   "D,S,T",     MATCH_FMUL_Q|MASK_RM, MASK_FMUL_Q|MASK_RM, match_opcode, 0 },
-{"fmul.q",     0, INSN_CLASS_Q_INX,   "D,S,T,m",   MATCH_FMUL_Q, MASK_FMUL_Q, match_opcode, 0 },
-{"fdiv.q",     0, INSN_CLASS_Q_INX,   "D,S,T",     MATCH_FDIV_Q|MASK_RM, MASK_FDIV_Q|MASK_RM, match_opcode, 0 },
-{"fdiv.q",     0, INSN_CLASS_Q_INX,   "D,S,T,m",   MATCH_FDIV_Q, MASK_FDIV_Q, match_opcode, 0 },
-{"fsqrt.q",    0, INSN_CLASS_Q_INX,   "D,S",       MATCH_FSQRT_Q|MASK_RM, MASK_FSQRT_Q|MASK_RM, match_opcode, 0 },
-{"fsqrt.q",    0, INSN_CLASS_Q_INX,   "D,S,m",     MATCH_FSQRT_Q, MASK_FSQRT_Q, match_opcode, 0 },
+{"fadd.q",     0, INSN_CLASS_Q_INX,   "D,S,Tm",    MATCH_FADD_Q, MASK_FADD_Q, match_opcode, 0 },
+{"fsub.q",     0, INSN_CLASS_Q_INX,   "D,S,Tm",    MATCH_FSUB_Q, MASK_FSUB_Q, match_opcode, 0 },
+{"fmul.q",     0, INSN_CLASS_Q_INX,   "D,S,Tm",    MATCH_FMUL_Q, MASK_FMUL_Q, match_opcode, 0 },
+{"fdiv.q",     0, INSN_CLASS_Q_INX,   "D,S,Tm",    MATCH_FDIV_Q, MASK_FDIV_Q, match_opcode, 0 },
+{"fsqrt.q",    0, INSN_CLASS_Q_INX,   "D,Sm",      MATCH_FSQRT_Q, MASK_FSQRT_Q, match_opcode, 0 },
 {"fmin.q",     0, INSN_CLASS_Q_INX,   "D,S,T",     MATCH_FMIN_Q, MASK_FMIN_Q, match_opcode, 0 },
 {"fmax.q",     0, INSN_CLASS_Q_INX,   "D,S,T",     MATCH_FMAX_Q, MASK_FMAX_Q, match_opcode, 0 },
-{"fmadd.q",    0, INSN_CLASS_Q_INX,   "D,S,T,R",   MATCH_FMADD_Q|MASK_RM, MASK_FMADD_Q|MASK_RM, match_opcode, 0 },
-{"fmadd.q",    0, INSN_CLASS_Q_INX,   "D,S,T,R,m", MATCH_FMADD_Q, MASK_FMADD_Q, match_opcode, 0 },
-{"fnmadd.q",   0, INSN_CLASS_Q_INX,   "D,S,T,R",   MATCH_FNMADD_Q|MASK_RM, MASK_FNMADD_Q|MASK_RM, match_opcode, 0 },
-{"fnmadd.q",   0, INSN_CLASS_Q_INX,   "D,S,T,R,m", MATCH_FNMADD_Q, MASK_FNMADD_Q, match_opcode, 0 },
-{"fmsub.q",    0, INSN_CLASS_Q_INX,   "D,S,T,R",   MATCH_FMSUB_Q|MASK_RM, MASK_FMSUB_Q|MASK_RM, match_opcode, 0 },
-{"fmsub.q",    0, INSN_CLASS_Q_INX,   "D,S,T,R,m", MATCH_FMSUB_Q, MASK_FMSUB_Q, match_opcode, 0 },
-{"fnmsub.q",   0, INSN_CLASS_Q_INX,   "D,S,T,R",   MATCH_FNMSUB_Q|MASK_RM, MASK_FNMSUB_Q|MASK_RM, match_opcode, 0 },
-{"fnmsub.q",   0, INSN_CLASS_Q_INX,   "D,S,T,R,m", MATCH_FNMSUB_Q, MASK_FNMSUB_Q, match_opcode, 0 },
-{"fcvt.w.q",   0, INSN_CLASS_Q_INX,   "d,S",       MATCH_FCVT_W_Q|MASK_RM, MASK_FCVT_W_Q|MASK_RM, match_opcode, 0 },
-{"fcvt.w.q",   0, INSN_CLASS_Q_INX,   "d,S,m",     MATCH_FCVT_W_Q, MASK_FCVT_W_Q, match_opcode, 0 },
-{"fcvt.wu.q",  0, INSN_CLASS_Q_INX,   "d,S",       MATCH_FCVT_WU_Q|MASK_RM, MASK_FCVT_WU_Q|MASK_RM, match_opcode, 0 },
-{"fcvt.wu.q",  0, INSN_CLASS_Q_INX,   "d,S,m",     MATCH_FCVT_WU_Q, MASK_FCVT_WU_Q, match_opcode, 0 },
+{"fmadd.q",    0, INSN_CLASS_Q_INX,   "D,S,T,Rm",  MATCH_FMADD_Q, MASK_FMADD_Q, match_opcode, 0 },
+{"fnmadd.q",   0, INSN_CLASS_Q_INX,   "D,S,T,Rm",  MATCH_FNMADD_Q, MASK_FNMADD_Q, match_opcode, 0 },
+{"fmsub.q",    0, INSN_CLASS_Q_INX,   "D,S,T,Rm",  MATCH_FMSUB_Q, MASK_FMSUB_Q, match_opcode, 0 },
+{"fnmsub.q",   0, INSN_CLASS_Q_INX,   "D,S,T,Rm",  MATCH_FNMSUB_Q, MASK_FNMSUB_Q, match_opcode, 0 },
+{"fcvt.w.q",   0, INSN_CLASS_Q_INX,   "d,Sm",      MATCH_FCVT_W_Q, MASK_FCVT_W_Q, match_opcode, 0 },
+{"fcvt.wu.q",  0, INSN_CLASS_Q_INX,   "d,Sm",      MATCH_FCVT_WU_Q, MASK_FCVT_WU_Q, match_opcode, 0 },
 {"fcvt.q.w",   0, INSN_CLASS_Q_INX,   "D,s",       MATCH_FCVT_Q_W, MASK_FCVT_Q_W|MASK_RM, match_opcode, 0 },
 {"fcvt.q.wu",  0, INSN_CLASS_Q_INX,   "D,s",       MATCH_FCVT_Q_WU, MASK_FCVT_Q_WU|MASK_RM, match_opcode, 0 },
 {"fcvt.q.s",   0, INSN_CLASS_Q_INX,   "D,S",       MATCH_FCVT_Q_S, MASK_FCVT_Q_S|MASK_RM, match_opcode, 0 },
 {"fcvt.q.d",   0, INSN_CLASS_Q_INX,   "D,S",       MATCH_FCVT_Q_D, MASK_FCVT_Q_D|MASK_RM, match_opcode, 0 },
-{"fcvt.s.q",   0, INSN_CLASS_Q_INX,   "D,S",       MATCH_FCVT_S_Q|MASK_RM, MASK_FCVT_S_Q|MASK_RM, match_opcode, 0 },
-{"fcvt.s.q",   0, INSN_CLASS_Q_INX,   "D,S,m",     MATCH_FCVT_S_Q, MASK_FCVT_S_Q, match_opcode, 0 },
-{"fcvt.d.q",   0, INSN_CLASS_Q_INX,   "D,S",       MATCH_FCVT_D_Q|MASK_RM, MASK_FCVT_D_Q|MASK_RM, match_opcode, 0 },
-{"fcvt.d.q",   0, INSN_CLASS_Q_INX,   "D,S,m",     MATCH_FCVT_D_Q, MASK_FCVT_D_Q, match_opcode, 0 },
+{"fcvt.s.q",   0, INSN_CLASS_Q_INX,   "D,Sm",      MATCH_FCVT_S_Q, MASK_FCVT_S_Q, match_opcode, 0 },
+{"fcvt.d.q",   0, INSN_CLASS_Q_INX,   "D,Sm",      MATCH_FCVT_D_Q, MASK_FCVT_D_Q, match_opcode, 0 },
 {"fclass.q",   0, INSN_CLASS_Q_INX,   "d,S",       MATCH_FCLASS_Q, MASK_FCLASS_Q, match_opcode, 0 },
 {"feq.q",      0, INSN_CLASS_Q_INX,   "d,S,T",     MATCH_FEQ_Q, MASK_FEQ_Q, match_opcode, 0 },
 {"flt.q",      0, INSN_CLASS_Q_INX,   "d,S,T",     MATCH_FLT_Q, MASK_FLT_Q, match_opcode, 0 },
 {"fle.q",      0, INSN_CLASS_Q_INX,   "d,S,T",     MATCH_FLE_Q, MASK_FLE_Q, match_opcode, 0 },
 {"fgt.q",      0, INSN_CLASS_Q_INX,   "d,T,S",     MATCH_FLT_Q, MASK_FLT_Q, match_opcode, INSN_ALIAS },
 {"fge.q",      0, INSN_CLASS_Q_INX,   "d,T,S",     MATCH_FLE_Q, MASK_FLE_Q, match_opcode, INSN_ALIAS },
-{"fcvt.l.q",  64, INSN_CLASS_Q_INX,   "d,S",       MATCH_FCVT_L_Q|MASK_RM, MASK_FCVT_L_Q|MASK_RM, match_opcode, 0 },
-{"fcvt.l.q",  64, INSN_CLASS_Q_INX,   "d,S,m",     MATCH_FCVT_L_Q, MASK_FCVT_L_Q, match_opcode, 0 },
-{"fcvt.lu.q", 64, INSN_CLASS_Q_INX,   "d,S",       MATCH_FCVT_LU_Q|MASK_RM, MASK_FCVT_LU_Q|MASK_RM, match_opcode, 0 },
-{"fcvt.lu.q", 64, INSN_CLASS_Q_INX,   "d,S,m",     MATCH_FCVT_LU_Q, MASK_FCVT_LU_Q, match_opcode, 0 },
+{"fcvt.l.q",  64, INSN_CLASS_Q_INX,   "d,Sm",      MATCH_FCVT_L_Q, MASK_FCVT_L_Q, match_opcode, 0 },
+{"fcvt.lu.q", 64, INSN_CLASS_Q_INX,   "d,Sm",      MATCH_FCVT_LU_Q, MASK_FCVT_LU_Q, match_opcode, 0 },
 {"fcvt.q.l",  64, INSN_CLASS_Q_INX,   "D,s",       MATCH_FCVT_Q_L, MASK_FCVT_Q_L|MASK_RM, match_opcode, 0 },
 {"fcvt.q.lu", 64, INSN_CLASS_Q_INX,   "D,s",       MATCH_FCVT_Q_LU, MASK_FCVT_Q_LU|MASK_RM, match_opcode, 0 },
 
@@ -1306,23 +1237,15 @@  const struct riscv_opcode riscv_opcodes[
 {"fmaxm.q",     0, INSN_CLASS_Q_AND_ZFA,   "D,S,T", MATCH_FMAXM_Q, MASK_FMAXM_Q, match_opcode, 0 },
 {"fminm.h",     0, INSN_CLASS_ZFH_AND_ZFA, "D,S,T", MATCH_FMINM_H, MASK_FMINM_H, match_opcode, 0 },
 {"fmaxm.h",     0, INSN_CLASS_ZFH_AND_ZFA, "D,S,T", MATCH_FMAXM_H, MASK_FMAXM_H, match_opcode, 0 },
-{"fround.s",    0, INSN_CLASS_ZFA,         "D,S",   MATCH_FROUND_S|MASK_RM, MASK_FROUND_S|MASK_RM, match_opcode, 0 },
-{"fround.s",    0, INSN_CLASS_ZFA,         "D,S,m", MATCH_FROUND_S, MASK_FROUND_S, match_opcode, 0 },
-{"froundnx.s",  0, INSN_CLASS_ZFA,         "D,S",   MATCH_FROUNDNX_S|MASK_RM, MASK_FROUNDNX_S|MASK_RM, match_opcode, 0 },
-{"froundnx.s",  0, INSN_CLASS_ZFA,         "D,S,m", MATCH_FROUNDNX_S, MASK_FROUNDNX_S, match_opcode, 0 },
-{"fround.d",    0, INSN_CLASS_D_AND_ZFA,   "D,S",   MATCH_FROUND_D|MASK_RM, MASK_FROUND_D|MASK_RM, match_opcode, 0 },
-{"fround.d",    0, INSN_CLASS_D_AND_ZFA,   "D,S,m", MATCH_FROUND_D, MASK_FROUND_D, match_opcode, 0 },
-{"froundnx.d",  0, INSN_CLASS_D_AND_ZFA,   "D,S",   MATCH_FROUNDNX_D|MASK_RM, MASK_FROUNDNX_D|MASK_RM, match_opcode, 0 },
-{"froundnx.d",  0, INSN_CLASS_D_AND_ZFA,   "D,S,m", MATCH_FROUNDNX_D, MASK_FROUNDNX_D, match_opcode, 0 },
-{"fround.q",    0, INSN_CLASS_Q_AND_ZFA,   "D,S",   MATCH_FROUND_Q|MASK_RM, MASK_FROUND_Q|MASK_RM, match_opcode, 0 },
-{"fround.q",    0, INSN_CLASS_Q_AND_ZFA,   "D,S,m", MATCH_FROUND_Q, MASK_FROUND_Q, match_opcode, 0 },
-{"froundnx.q",  0, INSN_CLASS_Q_AND_ZFA,   "D,S",   MATCH_FROUNDNX_Q|MASK_RM, MASK_FROUNDNX_Q|MASK_RM, match_opcode, 0 },
-{"froundnx.q",  0, INSN_CLASS_Q_AND_ZFA,   "D,S,m", MATCH_FROUNDNX_Q, MASK_FROUNDNX_Q, match_opcode, 0 },
-{"fround.h",    0, INSN_CLASS_ZFH_AND_ZFA, "D,S",   MATCH_FROUND_H|MASK_RM, MASK_FROUND_H|MASK_RM, match_opcode, 0 },
-{"fround.h",    0, INSN_CLASS_ZFH_AND_ZFA, "D,S,m", MATCH_FROUND_H, MASK_FROUND_H, match_opcode, 0 },
-{"froundnx.h",  0, INSN_CLASS_ZFH_AND_ZFA, "D,S",   MATCH_FROUNDNX_H|MASK_RM, MASK_FROUNDNX_H|MASK_RM, match_opcode, 0 },
-{"froundnx.h",  0, INSN_CLASS_ZFH_AND_ZFA, "D,S,m", MATCH_FROUNDNX_H, MASK_FROUNDNX_H, match_opcode, 0 },
-{"fcvtmod.w.d", 0, INSN_CLASS_D_AND_ZFA,   "d,S,m", MATCH_FCVTMOD_W_D, MASK_FCVTMOD_W_D, match_opcode, 0 },
+{"fround.s",    0, INSN_CLASS_ZFA,         "D,Sm",  MATCH_FROUND_S, MASK_FROUND_S, match_opcode, 0 },
+{"froundnx.s",  0, INSN_CLASS_ZFA,         "D,Sm",  MATCH_FROUNDNX_S, MASK_FROUNDNX_S, match_opcode, 0 },
+{"fround.d",    0, INSN_CLASS_D_AND_ZFA,   "D,Sm",  MATCH_FROUND_D, MASK_FROUND_D, match_opcode, 0 },
+{"froundnx.d",  0, INSN_CLASS_D_AND_ZFA,   "D,Sm",  MATCH_FROUNDNX_D, MASK_FROUNDNX_D, match_opcode, 0 },
+{"fround.q",    0, INSN_CLASS_Q_AND_ZFA,   "D,Sm",  MATCH_FROUND_Q, MASK_FROUND_Q, match_opcode, 0 },
+{"froundnx.q",  0, INSN_CLASS_Q_AND_ZFA,   "D,Sm",  MATCH_FROUNDNX_Q, MASK_FROUNDNX_Q, match_opcode, 0 },
+{"fround.h",    0, INSN_CLASS_ZFH_AND_ZFA, "D,Sm",  MATCH_FROUND_H, MASK_FROUND_H, match_opcode, 0 },
+{"froundnx.h",  0, INSN_CLASS_ZFH_AND_ZFA, "D,Sm",  MATCH_FROUNDNX_H, MASK_FROUNDNX_H, match_opcode, 0 },
+{"fcvtmod.w.d", 0, INSN_CLASS_D_AND_ZFA,   "d,S,M", MATCH_FCVTMOD_W_D, MASK_FCVTMOD_W_D, match_opcode, 0 },
 {"fmvh.x.d",   32, INSN_CLASS_D_AND_ZFA,   "d,S",   MATCH_FMVH_X_D, MASK_FMVH_X_D, match_opcode, 0 },
 {"fmvp.d.x",   32, INSN_CLASS_D_AND_ZFA,   "D,s,t", MATCH_FMVP_D_X, MASK_FMVP_D_X, match_opcode, 0 },
 {"fmvh.x.q",   64, INSN_CLASS_Q_AND_ZFA,   "d,S",   MATCH_FMVH_X_Q, MASK_FMVH_X_Q, match_opcode, 0 },