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[mips][NFC] Remove unused instruction formats 

`BranchBase` unused sice: rL170663
`FI` unsused since: rL170954
`FFI` unused since: rL190221

Differential revision: https://reviews.llvm.org/D73489
This commit is contained in:
Miloš Stojanović 2020-01-27 16:29:26 +01:00
parent 3d1f0ce3b9
commit 4c8817cddf
1 changed files with 0 additions and 47 deletions
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47
llvm/lib/Target/Mips/MipsInstrFormats.td
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@ -168,39 +168,6 @@ class FR<bits<6> op, bits<6> _funct, dag outs, dag ins, string asmstr,
let Inst{5-0} = funct;
}
//===----------------------------------------------------------------------===//
// Format I instruction class in Mips : <|opcode|rs|rt|immediate|>
//===----------------------------------------------------------------------===//
class FI<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern,
InstrItinClass itin>: InstSE<outs, ins, asmstr, pattern, itin, FrmI>
{
bits<5> rt;
bits<5> rs;
bits<16> imm16;
let Opcode = op;
let Inst{25-21} = rs;
let Inst{20-16} = rt;
let Inst{15-0} = imm16;
}
class BranchBase<bits<6> op, dag outs, dag ins, string asmstr,
list<dag> pattern, InstrItinClass itin>:
InstSE<outs, ins, asmstr, pattern, itin, FrmI>
{
bits<5> rs;
bits<5> rt;
bits<16> imm16;
let Opcode = op;
let Inst{25-21} = rs;
let Inst{20-16} = rt;
let Inst{15-0} = imm16;
}
//===----------------------------------------------------------------------===//
// Format J instruction class in Mips : <|opcode|address|>
//===----------------------------------------------------------------------===//
@ -711,20 +678,6 @@ class EI_FM<bits<1> sc> : StdArch
// Format FI instruction class in Mips : <|opcode|base|ft|immediate|>
//===----------------------------------------------------------------------===//
class FFI<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern>:
InstSE<outs, ins, asmstr, pattern, NoItinerary, FrmFI>
{
bits<5> ft;
bits<5> base;
bits<16> imm16;
let Opcode = op;
let Inst{25-21} = base;
let Inst{20-16} = ft;
let Inst{15-0} = imm16;
}
class ADDS_FM<bits<6> funct, bits<5> fmt> : StdArch {
bits<5> fd;
bits<5> fs;