Move all sources from the llvm project into contrib/llvm-project.

This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo".  That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.

Updating the vendor area to match this layout is next.

1 files changed, 0 insertions, 613 deletions

diff --git a/contrib/llvm/lib/Target/Mips/Mips32r6InstrFormats.td b/contrib/llvm/lib/Target/Mips/Mips32r6InstrFormats.td
deleted file mode 100644
index ccb6d1df777a..000000000000
--- a/contrib/llvm/lib/Target/Mips/Mips32r6InstrFormats.td
+++ /dev/null
@@ -1,613 +0,0 @@
-//=- Mips32r6InstrFormats.td - Mips32r6 Instruction Formats -*- tablegen -*-==//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-//
-// This file describes Mips32r6 instruction formats.
-//
-//===----------------------------------------------------------------------===//
-
-class R6MMR6Rel;
-
-def MipsR62MicroMipsR6 : InstrMapping {
-  let FilterClass = "R6MMR6Rel";
-  // Instructions with the same BaseOpcode and isNVStore values form a row.
-  let RowFields = ["BaseOpcode"];
-  // Instructions with the same predicate sense form a column.
-  let ColFields = ["Arch"];
-  // The key column is the unpredicated instructions.
-  let KeyCol = ["mipsr6"];
-  // Value columns are PredSense=true and PredSense=false
-  let ValueCols = [["mipsr6"], ["micromipsr6"]];
-}
-
-class MipsR6Arch<string opstr> {
-  string Arch = "mipsr6";
-  string BaseOpcode = opstr;
-}
-
-class MipsR6Inst : MipsInst<(outs), (ins), "", [], NoItinerary, FrmOther> {
-  let DecoderNamespace = "Mips32r6_64r6";
-  let EncodingPredicates = [HasStdEnc];
-}
-
-//===----------------------------------------------------------------------===//
-//
-// Field Values
-//
-//===----------------------------------------------------------------------===//
-
-class OPGROUP<bits<6> Val> {
-  bits<6> Value = Val;
-}
-def OPGROUP_COP0     : OPGROUP<0b010000>;
-def OPGROUP_COP1     : OPGROUP<0b010001>;
-def OPGROUP_COP2     : OPGROUP<0b010010>;
-def OPGROUP_ADDI     : OPGROUP<0b001000>;
-def OPGROUP_AUI      : OPGROUP<0b001111>;
-def OPGROUP_BLEZ     : OPGROUP<0b000110>;
-def OPGROUP_BGTZ     : OPGROUP<0b000111>;
-def OPGROUP_BLEZL    : OPGROUP<0b010110>;
-def OPGROUP_BGTZL    : OPGROUP<0b010111>;
-def OPGROUP_DADDI    : OPGROUP<0b011000>;
-def OPGROUP_DAUI     : OPGROUP<0b011101>;
-def OPGROUP_PCREL    : OPGROUP<0b111011>;
-def OPGROUP_REGIMM   : OPGROUP<0b000001>;
-def OPGROUP_SPECIAL  : OPGROUP<0b000000>;
-// The spec occasionally names this value LL, LLD, SC, or SCD.
-def OPGROUP_SPECIAL3 : OPGROUP<0b011111>;
-// The spec names this constant LWC2, LDC2, SWC2, and SDC2 in different places.
-def OPGROUP_COP2LDST : OPGROUP<0b010010>;
-
-class OPCODE2<bits<2> Val> {
-  bits<2> Value = Val;
-}
-def OPCODE2_ADDIUPC : OPCODE2<0b00>;
-def OPCODE2_LWPC    : OPCODE2<0b01>;
-def OPCODE2_LWUPC   : OPCODE2<0b10>;
-
-class OPCODE3<bits<3> Val> {
-  bits<3> Value = Val;
-}
-def OPCODE3_LDPC : OPCODE3<0b110>;
-
-class OPCODE5<bits<5> Val> {
-  bits<5> Value = Val;
-}
-def OPCODE5_ALUIPC : OPCODE5<0b11111>;
-def OPCODE5_AUIPC  : OPCODE5<0b11110>;
-def OPCODE5_DAHI : OPCODE5<0b00110>;
-def OPCODE5_DATI : OPCODE5<0b11110>;
-def OPCODE5_BC1EQZ : OPCODE5<0b01001>;
-def OPCODE5_BC1NEZ : OPCODE5<0b01101>;
-def OPCODE5_BC2EQZ : OPCODE5<0b01001>;
-def OPCODE5_BC2NEZ : OPCODE5<0b01101>;
-def OPCODE5_BGEZAL : OPCODE5<0b10001>;
-def OPCODE5_SIGRIE : OPCODE5<0b10111>;
-// The next four constants are unnamed in the spec. These names are taken from
-// the OPGROUP names they are used with.
-def OPCODE5_LDC2   : OPCODE5<0b01110>;
-def OPCODE5_LWC2   : OPCODE5<0b01010>;
-def OPCODE5_SDC2   : OPCODE5<0b01111>;
-def OPCODE5_SWC2   : OPCODE5<0b01011>;
-
-class OPCODE6<bits<6> Val> {
-  bits<6> Value = Val;
-}
-def OPCODE6_ALIGN    : OPCODE6<0b100000>;
-def OPCODE6_DALIGN   : OPCODE6<0b100100>;
-def OPCODE6_BITSWAP  : OPCODE6<0b100000>;
-def OPCODE6_DBITSWAP : OPCODE6<0b100100>;
-def OPCODE6_JALR     : OPCODE6<0b001001>;
-def OPCODE6_CACHE    : OPCODE6<0b100101>;
-def OPCODE6_PREF     : OPCODE6<0b110101>;
-// The next four constants are unnamed in the spec. These names are taken from
-// the OPGROUP names they are used with.
-def OPCODE6_LL       : OPCODE6<0b110110>;
-def OPCODE6_LLD      : OPCODE6<0b110111>;
-def OPCODE6_SC       : OPCODE6<0b100110>;
-def OPCODE6_SCD      : OPCODE6<0b100111>;
-def OPCODE6_CLO      : OPCODE6<0b010001>;
-def OPCODE6_CLZ      : OPCODE6<0b010000>;
-def OPCODE6_DCLO     : OPCODE6<0b010011>;
-def OPCODE6_DCLZ     : OPCODE6<0b010010>;
-def OPCODE6_LSA      : OPCODE6<0b000101>;
-def OPCODE6_DLSA     : OPCODE6<0b010101>;
-def OPCODE6_SDBBP    : OPCODE6<0b001110>;
-
-class FIELD_FMT<bits<5> Val> {
-  bits<5> Value = Val;
-}
-def FIELD_FMT_S : FIELD_FMT<0b10000>;
-def FIELD_FMT_D : FIELD_FMT<0b10001>;
-
-class FIELD_CMP_COND<bits<5> Val> {
-  bits<5> Value = Val;
-}
-// Note: The CMP_COND_FMT names differ from the C_COND_FMT names.
-def FIELD_CMP_COND_AF   : FIELD_CMP_COND<0b00000>;
-def FIELD_CMP_COND_UN   : FIELD_CMP_COND<0b00001>;
-def FIELD_CMP_COND_EQ   : FIELD_CMP_COND<0b00010>;
-def FIELD_CMP_COND_UEQ  : FIELD_CMP_COND<0b00011>;
-def FIELD_CMP_COND_LT   : FIELD_CMP_COND<0b00100>;
-def FIELD_CMP_COND_ULT  : FIELD_CMP_COND<0b00101>;
-def FIELD_CMP_COND_LE   : FIELD_CMP_COND<0b00110>;
-def FIELD_CMP_COND_ULE  : FIELD_CMP_COND<0b00111>;
-def FIELD_CMP_COND_SAF  : FIELD_CMP_COND<0b01000>;
-def FIELD_CMP_COND_SUN  : FIELD_CMP_COND<0b01001>;
-def FIELD_CMP_COND_SEQ  : FIELD_CMP_COND<0b01010>;
-def FIELD_CMP_COND_SUEQ : FIELD_CMP_COND<0b01011>;
-def FIELD_CMP_COND_SLT  : FIELD_CMP_COND<0b01100>;
-def FIELD_CMP_COND_SULT : FIELD_CMP_COND<0b01101>;
-def FIELD_CMP_COND_SLE  : FIELD_CMP_COND<0b01110>;
-def FIELD_CMP_COND_SULE : FIELD_CMP_COND<0b01111>;
-
-class FIELD_CMP_FORMAT<bits<5> Val> {
-  bits<5> Value = Val;
-}
-def FIELD_CMP_FORMAT_S : FIELD_CMP_FORMAT<0b10100>;
-def FIELD_CMP_FORMAT_D : FIELD_CMP_FORMAT<0b10101>;
-
-//===----------------------------------------------------------------------===//
-//
-// Disambiguators
-//
-//===----------------------------------------------------------------------===//
-//
-// Some encodings are ambiguous except by comparing field values.
-
-class DecodeDisambiguates<string Name> {
-  string DecoderMethod = !strconcat("Decode", Name);
-}
-
-class DecodeDisambiguatedBy<string Name> : DecodeDisambiguates<Name> {
-  string DecoderNamespace = "Mips32r6_64r6_Ambiguous";
-}
-
-//===----------------------------------------------------------------------===//
-//
-// Encoding Formats
-//
-//===----------------------------------------------------------------------===//
-
-class AUI_FM : MipsR6Inst {
-  bits<5> rs;
-  bits<5> rt;
-  bits<16> imm;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_AUI.Value;
-  let Inst{25-21} = rs;
-  let Inst{20-16} = rt;
-  let Inst{15-0} = imm;
-}
-
-class DAUI_FM : AUI_FM {
-  let Inst{31-26} = OPGROUP_DAUI.Value;
-}
-
-class BAL_FM : MipsR6Inst {
-  bits<16> offset;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_REGIMM.Value;
-  let Inst{25-21} = 0b00000;
-  let Inst{20-16} = OPCODE5_BGEZAL.Value;
-  let Inst{15-0} = offset;
-}
-
-class COP0_EVP_DVP_FM<bits<1> sc> : MipsR6Inst {
-  bits<5> rt;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_COP0.Value;
-  let Inst{25-21} = 0b01011;
-  let Inst{20-16} = rt;
-  let Inst{15-11} = 0b00000;
-  let Inst{10-6}  = 0b00000;
-  let Inst{5}     = sc;
-  let Inst{4-3}   = 0b00;
-  let Inst{2-0}   = 0b100;
-}
-
-class COP1_2R_FM<bits<6> funct, FIELD_FMT Format> : MipsR6Inst {
-  bits<5> fs;
-  bits<5> fd;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_COP1.Value;
-  let Inst{25-21} = Format.Value;
-  let Inst{20-16} = 0b00000;
-  let Inst{15-11} = fs;
-  let Inst{10-6}  = fd;
-  let Inst{5-0}   = funct;
-}
-
-class COP1_3R_FM<bits<6> funct, FIELD_FMT Format> : MipsR6Inst {
-  bits<5> ft;
-  bits<5> fs;
-  bits<5> fd;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_COP1.Value;
-  let Inst{25-21} = Format.Value;
-  let Inst{20-16} = ft;
-  let Inst{15-11} = fs;
-  let Inst{10-6} = fd;
-  let Inst{5-0} = funct;
-}
-
-class COP1_BCCZ_FM<OPCODE5 Operation> : MipsR6Inst {
-  bits<5> ft;
-  bits<16> offset;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_COP1.Value;
-  let Inst{25-21} = Operation.Value;
-  let Inst{20-16} = ft;
-  let Inst{15-0} = offset;
-}
-
-class COP2_BCCZ_FM<OPCODE5 Operation> : MipsR6Inst {
-  bits<5> ct;
-  bits<16> offset;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_COP2.Value;
-  let Inst{25-21} = Operation.Value;
-  let Inst{20-16} = ct;
-  let Inst{15-0} = offset;
-}
-
-class PCREL16_FM<OPCODE5 Operation> : MipsR6Inst {
-  bits<5> rs;
-  bits<16> imm;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_PCREL.Value;
-  let Inst{25-21} = rs;
-  let Inst{20-16} = Operation.Value;
-  let Inst{15-0} = imm;
-}
-
-class PCREL19_FM<OPCODE2 Operation> : MipsR6Inst {
-  bits<5> rs;
-  bits<19> imm;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_PCREL.Value;
-  let Inst{25-21} = rs;
-  let Inst{20-19} = Operation.Value;
-  let Inst{18-0} = imm;
-}
-
-class PCREL18_FM<OPCODE3 Operation> : MipsR6Inst {
-  bits<5> rs;
-  bits<18> imm;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_PCREL.Value;
-  let Inst{25-21} = rs;
-  let Inst{20-18} = Operation.Value;
-  let Inst{17-0} = imm;
-}
-
-class SPECIAL3_2R_FM<OPCODE6 Operation> : MipsR6Inst {
-  bits<5> rd;
-  bits<5> rt;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_SPECIAL3.Value;
-  let Inst{25-21} = 0b00000;
-  let Inst{20-16} = rt;
-  let Inst{15-11} = rd;
-  let Inst{10-6}  = 0b00000;
-  let Inst{5-0}   = Operation.Value;
-}
-
-class SPECIAL3_MEM_FM<OPCODE6 Operation> : MipsR6Inst {
-  bits<21> addr;
-  bits<5> hint;
-  bits<5> base = addr{20-16};
-  bits<9> offset = addr{8-0};
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_SPECIAL3.Value;
-  let Inst{25-21} = base;
-  let Inst{20-16} = hint;
-  let Inst{15-7}  = offset;
-  let Inst{6}     = 0;
-  let Inst{5-0}   = Operation.Value;
-}
-
-class SPECIAL_2R_FM<OPCODE6 Operation> : MipsR6Inst {
-  bits<5> rd;
-  bits<5> rs;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_SPECIAL.Value;
-  let Inst{25-21} = rs;
-  let Inst{20-16} = 0b00000;
-  let Inst{15-11} = rd;
-  let Inst{10-6}  = 0b00001;
-  let Inst{5-0}   = Operation.Value;
-}
-
-class SPECIAL_3R_FM<bits<5> mulop, bits<6> funct> : MipsR6Inst {
-  bits<5> rd;
-  bits<5> rs;
-  bits<5> rt;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_SPECIAL.Value;
-  let Inst{25-21} = rs;
-  let Inst{20-16} = rt;
-  let Inst{15-11} = rd;
-  let Inst{10-6}  = mulop;
-  let Inst{5-0}   = funct;
-}
-
-class SPECIAL_SDBBP_FM : MipsR6Inst {
-  bits<20> code_;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_SPECIAL.Value;
-  let Inst{25-6}  = code_;
-  let Inst{5-0}   = OPCODE6_SDBBP.Value;
-}
-
-// This class is ambiguous with other branches:
-//   BEQC/BNEC require that rs < rt && rs != 0
-class CMP_BRANCH_2R_OFF16_FM<OPGROUP funct> : MipsR6Inst {
-  bits<5> rs;
-  bits<5> rt;
-  bits<16> offset;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = funct.Value;
-  let Inst{25-21} = rs;
-  let Inst{20-16} = rt;
-  let Inst{15-0} = offset;
-}
-
-// This class is ambiguous with other branches:
-//   BLEZC/BGEZC/BEQZALC/BNEZALC/BGTZALC require that rs == 0 && rt != 0
-// The '1R_RT' in the name means 1 register in the rt field.
-class CMP_BRANCH_1R_RT_OFF16_FM<OPGROUP funct> : MipsR6Inst {
-  bits<5> rt;
-  bits<16> offset;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = funct.Value;
-  let Inst{25-21} = 0b00000;
-  let Inst{20-16} = rt;
-  let Inst{15-0} = offset;
-}
-
-// This class is ambiguous with other branches:
-//   BLTZC/BGTZC/BLTZALC/BGEZALC require that rs == rt && rt != 0
-// The '1R_BOTH' in the name means 1 register in both the rs and rt fields.
-class CMP_BRANCH_1R_BOTH_OFF16_FM<OPGROUP funct> : MipsR6Inst {
-  bits<5> rt;
-  bits<16> offset;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = funct.Value;
-  let Inst{25-21} = rt;
-  let Inst{20-16} = rt;
-  let Inst{15-0} = offset;
-}
-
-class CMP_BRANCH_OFF21_FM<bits<6> funct> : MipsR6Inst {
-  bits<5> rs; // rs != 0
-  bits<21> offset;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = funct;
-  let Inst{25-21} = rs;
-  let Inst{20-0} = offset;
-}
-
-class JMP_IDX_COMPACT_FM<bits<6> funct> : MipsR6Inst {
-  bits<5> rt;
-  bits<16> offset;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = funct;
-  let Inst{25-21} = 0b00000;
-  let Inst{20-16} = rt;
-  let Inst{15-0} = offset;
-}
-
-class BRANCH_OFF26_FM<bits<6> funct> : MipsR6Inst {
-  bits<32> Inst;
-  bits<26> offset;
-
-  let Inst{31-26} = funct;
-  let Inst{25-0} = offset;
-}
-
-class SPECIAL3_ALIGN_FM<OPCODE6 Operation> : MipsR6Inst {
-  bits<5> rd;
-  bits<5> rs;
-  bits<5> rt;
-  bits<2> bp;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_SPECIAL3.Value;
-  let Inst{25-21} = rs;
-  let Inst{20-16} = rt;
-  let Inst{15-11} = rd;
-  let Inst{10-8}  = 0b010;
-  let Inst{7-6}   = bp;
-  let Inst{5-0}   = Operation.Value;
-}
-
-class SPECIAL3_DALIGN_FM<OPCODE6 Operation> : MipsR6Inst {
-  bits<5> rd;
-  bits<5> rs;
-  bits<5> rt;
-  bits<3> bp;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_SPECIAL3.Value;
-  let Inst{25-21} = rs;
-  let Inst{20-16} = rt;
-  let Inst{15-11} = rd;
-  let Inst{10-9}  = 0b01;
-  let Inst{8-6}   = bp;
-  let Inst{5-0}   = Operation.Value;
-}
-
-class SPECIAL3_LL_SC_FM<OPCODE6 Operation> : MipsR6Inst {
-  bits<5> rt;
-  bits<21> addr;
-  bits<5> base = addr{20-16};
-  bits<9> offset = addr{8-0};
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_SPECIAL3.Value;
-  let Inst{25-21} = base;
-  let Inst{20-16} = rt;
-  let Inst{15-7} = offset;
-  let Inst{5-0} = Operation.Value;
-
-  string DecoderMethod = "DecodeSpecial3LlSc";
-}
-
-class SPECIAL_LSA_FM<OPCODE6 Operation> : MipsR6Inst {
-  bits<5> rd;
-  bits<5> rs;
-  bits<5> rt;
-  bits<2> imm2;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_SPECIAL.Value;
-  let Inst{25-21} = rs;
-  let Inst{20-16} = rt;
-  let Inst{15-11} = rd;
-  let Inst{10-8}  = 0b000;
-  let Inst{7-6}   = imm2;
-  let Inst{5-0}   = Operation.Value;
-}
-
-class REGIMM_FM<OPCODE5 Operation> : MipsR6Inst {
-  bits<5> rs;
-  bits<16> imm;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_REGIMM.Value;
-  let Inst{25-21} = rs;
-  let Inst{20-16} = Operation.Value;
-  let Inst{15-0} = imm;
-}
-
-class COP1_CMP_CONDN_FM<FIELD_CMP_FORMAT Format,
-                        FIELD_CMP_COND Cond> : MipsR6Inst {
-  bits<5> fd;
-  bits<5> fs;
-  bits<5> ft;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_COP1.Value;
-  let Inst{25-21} = Format.Value;
-  let Inst{20-16} = ft;
-  let Inst{15-11} = fs;
-  let Inst{10-6}  = fd;
-  let Inst{5}     = 0;
-  let Inst{4-0}   = Cond.Value;
-}
-
-class JR_HB_R6_FM<OPCODE6 Operation> : MipsR6Inst {
-  bits<5> rs;
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_SPECIAL.Value;
-  let Inst{25-21} = rs;
-  let Inst{20-16} = 0;
-  let Inst{15-11} = 0;
-  let Inst{10} = 1;
-  let Inst{9-6} = 0;
-  let Inst{5-0} = Operation.Value;
-}
-
-class COP2LDST_FM<OPCODE5 Operation> : MipsR6Inst {
-  bits<5> rt;
-  bits<21> addr;
-  bits<5> base = addr{20-16};
-  bits<11> offset = addr{10-0};
-
-  bits<32> Inst;
-
-  let Inst{31-26} = OPGROUP_COP2LDST.Value;
-  let Inst{25-21} = Operation.Value;
-  let Inst{20-16} = rt;
-  let Inst{15-11} = base;
-  let Inst{10-0}  = offset;
-}
-
-class SPECIAL3_2R_SZ_CRC<bits<2> sz, bits<3> direction> : MipsR6Inst {
-  bits<5> rs;
-  bits<5> rt;
-
-  let Inst{31-26} = OPGROUP_SPECIAL3.Value;
-  let Inst{25-21} = rs;
-  let Inst{20-16} = rt;
-  let Inst{15-11} = 0b00000;
-  let Inst{10-8} = direction;
-  let Inst{7-6} = sz;
-  let Inst{5-0} = 0b001111;
-
-  string DecoderMethod = "DecodeCRC";
-}
-
-class SPECIAL3_GINV<bits<2> ginv> : MipsR6Inst {
-  bits<5> rs;
-  bits<2> type_;
-
-  let Inst{31-26} = OPGROUP_SPECIAL3.Value;
-  let Inst{25-21} = rs;
-  let Inst{20-10} = 0x0;
-  let Inst{9-8}   = type_;
-  let Inst{7-6}   = ginv;
-  let Inst{5-0}   = 0b111101;
-}
-
-class SIGRIE_FM : MipsR6Inst {
-  bits<16> code_;
-
-  let Inst{31-26} = OPGROUP_REGIMM.Value;
-  let Inst{25-21} = 0;
-  let Inst{20-16} = OPCODE5_SIGRIE.Value;
-  let Inst{15-0} = code_;
-}