gdb: microblaze opcode enumeration vs ISO/IEC TS 18661-3:2015

["Dr N.W. Filardo" <nwf20 at cam dot ac dot uk>]

Hello binutils@,

As per https://sourceware.org/bugzilla/show_bug.cgi?id=25277, 
gdb/opcodes/microblaze-opcm.h attempts to use fadd, fmul, and fdiv as 
arms of enum microblaze_instr, but these symbols are now, by ISO/IEC TS 
18661-3:2015, defined to refer to functions from the runtime subsystem.

I believe the patch below suffices.

Cheers,
--nwf;

P.S. Please CC: me on any replies and/or use the bugtracker, as I am not 
subscribed to this list.

--- a/opcodes/microblaze-opc.h
+++ a/opcodes/microblaze-opc.h
@@ -255,10 +255,10 @@ struct op_code_struct
   {"smi",   INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, 
IMMVAL_MASK_NON_SPECIAL, 0xF8000000, OPCODE_MASK_H, invalid_inst, 
memory_store_inst },
   {"msrset",INST_TYPE_RD_IMM15, INST_NO_OFFSET, NO_DELAY_SLOT, 
IMMVAL_MASK_NON_SPECIAL, 0x94100000, OPCODE_MASK_H23N, msrset, 
special_inst },
   {"msrclr",INST_TYPE_RD_IMM15, INST_NO_OFFSET, NO_DELAY_SLOT, 
IMMVAL_MASK_NON_SPECIAL, 0x94110000, OPCODE_MASK_H23N, msrclr, 
special_inst },
-  {"fadd",  INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, 
IMMVAL_MASK_NON_SPECIAL, 0x58000000, OPCODE_MASK_H4, fadd, 
arithmetic_inst },
+  {"fadd",  INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, 
IMMVAL_MASK_NON_SPECIAL, 0x58000000, OPCODE_MASK_H4, mbi_fadd, 
arithmetic_inst },
   {"frsub",  INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, 
IMMVAL_MASK_NON_SPECIAL, 0x58000080, OPCODE_MASK_H4, frsub, 
arithmetic_inst },
-  {"fmul",  INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, 
IMMVAL_MASK_NON_SPECIAL, 0x58000100, OPCODE_MASK_H4, fmul, 
arithmetic_inst },
-  {"fdiv",  INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, 
IMMVAL_MASK_NON_SPECIAL, 0x58000180, OPCODE_MASK_H4, fdiv, 
arithmetic_inst },
+  {"fmul",  INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, 
IMMVAL_MASK_NON_SPECIAL, 0x58000100, OPCODE_MASK_H4, mbi_fmul, 
arithmetic_inst },
+  {"fdiv",  INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, 
IMMVAL_MASK_NON_SPECIAL, 0x58000180, OPCODE_MASK_H4, mbi_fdiv, 
arithmetic_inst },
   {"fcmp.lt", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, 
IMMVAL_MASK_NON_SPECIAL, 0x58000210, OPCODE_MASK_H4, fcmp_lt, 
arithmetic_inst },
   {"fcmp.eq", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, 
IMMVAL_MASK_NON_SPECIAL, 0x58000220, OPCODE_MASK_H4, fcmp_eq, 
arithmetic_inst },
   {"fcmp.le", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, 
IMMVAL_MASK_NON_SPECIAL, 0x58000230, OPCODE_MASK_H4, fcmp_le, 
arithmetic_inst },
--- a/opcodes/microblaze-opcm.h
+++ a/opcodes/microblaze-opcm.h
@@ -40,7 +40,7 @@ enum microblaze_instr
   brki, beqi, beqid, bnei, bneid, blti, bltid, blei, bleid, bgti,
   bgtid, bgei, bgeid, lbu, lbur, lhu, lhur, lw, lwr, lwx, sb, sbr, sh,
   shr, sw, swr, swx, lbui, lhui, lwi,
-  sbi, shi, swi, msrset, msrclr, tuqula, fadd, frsub, fmul, fdiv,
+  sbi, shi, swi, msrset, msrclr, tuqula, mbi_fadd, frsub, mbi_fmul, 
mbi_fdiv,
   fcmp_lt, fcmp_eq, fcmp_le, fcmp_gt, fcmp_ne, fcmp_ge, fcmp_un, flt,
   fint, fsqrt,
   tget, tcget, tnget, tncget, tput, tcput, tnput, tncput,