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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
369 lines
7.4 KiB
TableGen
369 lines
7.4 KiB
TableGen
//===- MipsDSPInstrFormats.td - Mips Instruction Formats ---*- tablegen -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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class DspMMRel;
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def Dsp2MicroMips : InstrMapping {
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let FilterClass = "DspMMRel";
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// Instructions with the same BaseOpcode and isNVStore values form a row.
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let RowFields = ["BaseOpcode"];
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// Instructions with the same predicate sense form a column.
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let ColFields = ["Arch"];
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// The key column is the unpredicated instructions.
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let KeyCol = ["dsp"];
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// Value columns are PredSense=true and PredSense=false
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let ValueCols = [["dsp"], ["mmdsp"]];
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}
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def HasDSP : Predicate<"Subtarget->hasDSP()">,
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AssemblerPredicate<"FeatureDSP">;
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def HasDSPR2 : Predicate<"Subtarget->hasDSPR2()">,
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AssemblerPredicate<"FeatureDSPR2">;
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def HasDSPR3 : Predicate<"Subtarget->hasDSPR3()">,
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AssemblerPredicate<"FeatureDSPR3">;
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class ISA_DSPR2 {
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list<Predicate> ASEPredicate = [HasDSPR2];
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}
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class ISA_DSPR3 {
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list<Predicate> ASEPredicate = [HasDSPR3];
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}
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// Fields.
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class Field6<bits<6> val> {
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bits<6> V = val;
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}
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def SPECIAL3_OPCODE : Field6<0b011111>;
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def REGIMM_OPCODE : Field6<0b000001>;
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class DSPInst<string opstr = "">
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: MipsInst<(outs), (ins), "", [], NoItinerary, FrmOther> {
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let ASEPredicate = [HasDSP];
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string BaseOpcode = opstr;
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string Arch = "dsp";
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}
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class PseudoDSP<dag outs, dag ins, list<dag> pattern,
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InstrItinClass itin = IIPseudo>
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: MipsPseudo<outs, ins, pattern, itin> {
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let ASEPredicate = [HasDSP];
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}
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class DSPInstAlias<string Asm, dag Result, bit Emit = 0b1>
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: InstAlias<Asm, Result, Emit>, PredicateControl {
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let ASEPredicate = [HasDSP];
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}
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// ADDU.QB sub-class format.
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class ADDU_QB_FMT<bits<5> op> : DSPInst {
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bits<5> rd;
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bits<5> rs;
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bits<5> rt;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-21} = rs;
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let Inst{20-16} = rt;
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let Inst{15-11} = rd;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b010000;
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}
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class RADDU_W_QB_FMT<bits<5> op> : DSPInst {
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bits<5> rd;
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bits<5> rs;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-21} = rs;
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let Inst{20-16} = 0;
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let Inst{15-11} = rd;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b010000;
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}
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// CMPU.EQ.QB sub-class format.
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class CMP_EQ_QB_R2_FMT<bits<5> op> : DSPInst {
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bits<5> rs;
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bits<5> rt;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-21} = rs;
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let Inst{20-16} = rt;
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let Inst{15-11} = 0;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b010001;
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}
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class CMP_EQ_QB_R3_FMT<bits<5> op> : DSPInst {
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bits<5> rs;
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bits<5> rt;
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bits<5> rd;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-21} = rs;
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let Inst{20-16} = rt;
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let Inst{15-11} = rd;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b010001;
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}
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class PRECR_SRA_PH_W_FMT<bits<5> op> : DSPInst {
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bits<5> rs;
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bits<5> rt;
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bits<5> sa;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-21} = rs;
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let Inst{20-16} = rt;
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let Inst{15-11} = sa;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b010001;
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}
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// ABSQ_S.PH sub-class format.
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class ABSQ_S_PH_R2_FMT<bits<5> op> : DSPInst {
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bits<5> rd;
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bits<5> rt;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-21} = 0;
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let Inst{20-16} = rt;
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let Inst{15-11} = rd;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b010010;
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}
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class REPL_FMT<bits<5> op> : DSPInst {
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bits<5> rd;
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bits<10> imm;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-16} = imm;
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let Inst{15-11} = rd;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b010010;
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}
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// SHLL.QB sub-class format.
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class SHLL_QB_FMT<bits<5> op> : DSPInst {
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bits<5> rd;
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bits<5> rt;
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bits<5> rs_sa;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-21} = rs_sa;
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let Inst{20-16} = rt;
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let Inst{15-11} = rd;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b010011;
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}
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// LX sub-class format.
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class LX_FMT<bits<5> op> : DSPInst {
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bits<5> rd;
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bits<5> base;
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bits<5> index;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-21} = base;
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let Inst{20-16} = index;
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let Inst{15-11} = rd;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b001010;
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}
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// ADDUH.QB sub-class format.
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class ADDUH_QB_FMT<bits<5> op> : DSPInst {
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bits<5> rd;
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bits<5> rs;
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bits<5> rt;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-21} = rs;
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let Inst{20-16} = rt;
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let Inst{15-11} = rd;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b011000;
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}
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// APPEND sub-class format.
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class APPEND_FMT<bits<5> op> : DSPInst {
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bits<5> rt;
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bits<5> rs;
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bits<5> sa;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-21} = rs;
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let Inst{20-16} = rt;
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let Inst{15-11} = sa;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b110001;
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}
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// DPA.W.PH sub-class format.
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class DPA_W_PH_FMT<bits<5> op> : DSPInst {
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bits<2> ac;
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bits<5> rs;
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bits<5> rt;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-21} = rs;
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let Inst{20-16} = rt;
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let Inst{15-13} = 0;
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let Inst{12-11} = ac;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b110000;
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}
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// MULT sub-class format.
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class MULT_FMT<bits<6> opcode, bits<6> funct> : DSPInst {
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bits<2> ac;
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bits<5> rs;
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bits<5> rt;
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let Opcode = opcode;
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let Inst{25-21} = rs;
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let Inst{20-16} = rt;
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let Inst{15-13} = 0;
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let Inst{12-11} = ac;
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let Inst{10-6} = 0;
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let Inst{5-0} = funct;
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}
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// MFHI sub-class format.
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class MFHI_FMT<bits<6> funct> : DSPInst {
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bits<5> rd;
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bits<2> ac;
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let Inst{31-26} = 0;
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let Inst{25-23} = 0;
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let Inst{22-21} = ac;
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let Inst{20-16} = 0;
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let Inst{15-11} = rd;
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let Inst{10-6} = 0;
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let Inst{5-0} = funct;
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}
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// MTHI sub-class format.
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class MTHI_FMT<bits<6> funct> : DSPInst {
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bits<5> rs;
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bits<2> ac;
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let Inst{31-26} = 0;
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let Inst{25-21} = rs;
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let Inst{20-13} = 0;
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let Inst{12-11} = ac;
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let Inst{10-6} = 0;
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let Inst{5-0} = funct;
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}
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// EXTR.W sub-class format (type 1).
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class EXTR_W_TY1_FMT<bits<5> op> : DSPInst {
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bits<5> rt;
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bits<2> ac;
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bits<5> shift_rs;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-21} = shift_rs;
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let Inst{20-16} = rt;
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let Inst{15-13} = 0;
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let Inst{12-11} = ac;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b111000;
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}
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// SHILO sub-class format.
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class SHILO_R1_FMT<bits<5> op> : DSPInst {
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bits<2> ac;
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bits<6> shift;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-20} = shift;
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let Inst{19-13} = 0;
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let Inst{12-11} = ac;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b111000;
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}
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class SHILO_R2_FMT<bits<5> op> : DSPInst {
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bits<2> ac;
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bits<5> rs;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-21} = rs;
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let Inst{20-13} = 0;
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let Inst{12-11} = ac;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b111000;
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}
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class RDDSP_FMT<bits<5> op> : DSPInst {
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bits<5> rd;
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bits<10> mask;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-16} = mask;
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let Inst{15-11} = rd;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b111000;
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}
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class WRDSP_FMT<bits<5> op> : DSPInst {
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bits<5> rs;
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bits<10> mask;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-21} = rs;
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let Inst{20-11} = mask;
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let Inst{10-6} = op;
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let Inst{5-0} = 0b111000;
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}
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class BPOSGE32_FMT<bits<5> op> : DSPInst {
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bits<16> offset;
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let Opcode = REGIMM_OPCODE.V;
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let Inst{25-21} = 0;
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let Inst{20-16} = op;
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let Inst{15-0} = offset;
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}
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// INSV sub-class format.
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class INSV_FMT<bits<6> op> : DSPInst {
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bits<5> rt;
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bits<5> rs;
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let Opcode = SPECIAL3_OPCODE.V;
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let Inst{25-21} = rs;
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let Inst{20-16} = rt;
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let Inst{15-6} = 0;
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let Inst{5-0} = op;
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}
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