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[RISCV] Add schedule class for Zbp extension and Zbr extension
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Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D120012
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lian wang authored and Lian Wang committed Mar 1, 2022
1 parent 7a53949 commit 5d91a8a
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Showing 4 changed files with 193 additions and 36 deletions.
93 changes: 57 additions & 36 deletions llvm/lib/Target/RISCV/RISCVInstrInfoZb.td
Expand Up @@ -397,32 +397,48 @@ def BEXTI : RVBShift_ri<0b01001, 0b101, OPC_OP_IMM, "bexti">,
} // Predicates = [HasStdExtZbs]

let Predicates = [HasStdExtZbp] in {
def GORC : ALU_rr<0b0010100, 0b101, "gorc">, Sched<[]>;
def GREV : ALU_rr<0b0110100, 0b101, "grev">, Sched<[]>;

def GREVI : RVBShift_ri<0b01101, 0b101, OPC_OP_IMM, "grevi">, Sched<[]>;
def GORCI : RVBShift_ri<0b00101, 0b101, OPC_OP_IMM, "gorci">, Sched<[]>;

def SHFL : ALU_rr<0b0000100, 0b001, "shfl">, Sched<[]>;
def UNSHFL : ALU_rr<0b0000100, 0b101, "unshfl">, Sched<[]>;

def SHFLI : RVBShfl_ri<0b0000100, 0b001, OPC_OP_IMM, "shfli">, Sched<[]>;
def UNSHFLI : RVBShfl_ri<0b0000100, 0b101, OPC_OP_IMM, "unshfli">, Sched<[]>;

def XPERM_H : ALU_rr<0b0010100, 0b110, "xperm.h">, Sched<[]>;
def GORC : ALU_rr<0b0010100, 0b101, "gorc">,
Sched<[WriteORC, ReadORC, ReadORC]>;
def GREV : ALU_rr<0b0110100, 0b101, "grev">,
Sched<[WriteREV, ReadREV, ReadREV]>;

def GREVI : RVBShift_ri<0b01101, 0b101, OPC_OP_IMM, "grevi">,
Sched<[WriteREVImm, ReadREVImm]>;
def GORCI : RVBShift_ri<0b00101, 0b101, OPC_OP_IMM, "gorci">,
Sched<[WriteORCImm, ReadORCImm]>;

def SHFL : ALU_rr<0b0000100, 0b001, "shfl">,
Sched<[WriteSHFL, ReadSHFL, ReadSHFL]>;
def UNSHFL : ALU_rr<0b0000100, 0b101, "unshfl">,
Sched<[WriteUNSHFL, ReadUNSHFL, ReadUNSHFL]>;

def SHFLI : RVBShfl_ri<0b0000100, 0b001, OPC_OP_IMM, "shfli">,
Sched<[WriteSHFLImm, ReadSHFLImm]>;
def UNSHFLI : RVBShfl_ri<0b0000100, 0b101, OPC_OP_IMM, "unshfli">,
Sched<[WriteUNSHFLImm, ReadUNSHFLImm]>;

def XPERM_H : ALU_rr<0b0010100, 0b110, "xperm.h">,
Sched<[WriteXPERMH, ReadXPERMH, ReadXPERMH]>;
} // Predicates = [HasStdExtZbp]

let Predicates = [HasStdExtZbp, IsRV64] in {
def GORCW : ALUW_rr<0b0010100, 0b101, "gorcw">, Sched<[]>;
def GREVW : ALUW_rr<0b0110100, 0b101, "grevw">, Sched<[]>;

def GORCIW : RVBShiftW_ri<0b0010100, 0b101, OPC_OP_IMM_32, "gorciw">, Sched<[]>;
def GREVIW : RVBShiftW_ri<0b0110100, 0b101, OPC_OP_IMM_32, "greviw">, Sched<[]>;

def SHFLW : ALUW_rr<0b0000100, 0b001, "shflw">, Sched<[]>;
def UNSHFLW : ALUW_rr<0b0000100, 0b101, "unshflw">, Sched<[]>;

def XPERM_W : ALU_rr<0b0010100, 0b000, "xperm.w">, Sched<[]>;
def GORCW : ALUW_rr<0b0010100, 0b101, "gorcw">,
Sched<[WriteORC32, ReadORC32, ReadORC32]>;
def GREVW : ALUW_rr<0b0110100, 0b101, "grevw">,
Sched<[WriteREV32, ReadREV32, ReadREV32]>;

def GORCIW : RVBShiftW_ri<0b0010100, 0b101, OPC_OP_IMM_32, "gorciw">,
Sched<[WriteREVImm32, ReadREVImm32]>;
def GREVIW : RVBShiftW_ri<0b0110100, 0b101, OPC_OP_IMM_32, "greviw">,
Sched<[WriteORCImm32, ReadORCImm32]>;

def SHFLW : ALUW_rr<0b0000100, 0b001, "shflw">,
Sched<[WriteSHFL32, ReadSHFL32, ReadSHFL32]>;
def UNSHFLW : ALUW_rr<0b0000100, 0b101, "unshflw">,
Sched<[WriteUNSHFL32, ReadUNSHFL32, ReadUNSHFL32]>;

def XPERM_W : ALU_rr<0b0010100, 0b000, "xperm.w">,
Sched<[WriteXPERMW, ReadXPERMW, ReadXPERMW]>;
} // Predicates = [HasStdExtZbp, IsRV64]

// These instructions were named xperm.n and xperm.b in the last version of
Expand Down Expand Up @@ -486,26 +502,26 @@ def SEXT_H : RVBUnary<0b0110000, 0b00101, 0b001, OPC_OP_IMM, "sext.h">,

let Predicates = [HasStdExtZbr] in {
def CRC32_B : RVBUnary<0b0110000, 0b10000, 0b001, OPC_OP_IMM, "crc32.b">,
Sched<[]>;
Sched<[WriteCRCB, ReadCRCB]>;
def CRC32_H : RVBUnary<0b0110000, 0b10001, 0b001, OPC_OP_IMM, "crc32.h">,
Sched<[]>;
Sched<[WriteCRCH, ReadCRCH]>;
def CRC32_W : RVBUnary<0b0110000, 0b10010, 0b001, OPC_OP_IMM, "crc32.w">,
Sched<[]>;
Sched<[WriteCRCW, ReadCRCW]>;

def CRC32C_B : RVBUnary<0b0110000, 0b11000, 0b001, OPC_OP_IMM, "crc32c.b">,
Sched<[]>;
Sched<[WriteCRCCB, ReadCRCCB]>;
def CRC32C_H : RVBUnary<0b0110000, 0b11001, 0b001, OPC_OP_IMM, "crc32c.h">,
Sched<[]>;
Sched<[WriteCRCCH, ReadCRCCH]>;
def CRC32C_W : RVBUnary<0b0110000, 0b11010, 0b001, OPC_OP_IMM, "crc32c.w">,
Sched<[]>;
Sched<[WriteCRCCW, ReadCRCCW]>;
} // Predicates = [HasStdExtZbr]

let Predicates = [HasStdExtZbr, IsRV64] in {
def CRC32_D : RVBUnary<0b0110000, 0b10011, 0b001, OPC_OP_IMM, "crc32.d">,
Sched<[]>;
Sched<[WriteCRCD, ReadCRCD]>;

def CRC32C_D : RVBUnary<0b0110000, 0b11011, 0b001, OPC_OP_IMM, "crc32c.d">,
Sched<[]>;
Sched<[WriteCRCCD, ReadCRCCD]>;
} // Predicates = [HasStdExtZbr, IsRV64]

let Predicates = [HasStdExtZbc] in {
Expand Down Expand Up @@ -550,18 +566,23 @@ def BCOMPRESSW : ALUW_rr<0b0000100, 0b110, "bcompressw">,
} // Predicates = [HasStdExtZbe, IsRV64]

let Predicates = [HasStdExtZbpOrZbkb] in {
def PACK : ALU_rr<0b0000100, 0b100, "pack">, Sched<[]>;
def PACKH : ALU_rr<0b0000100, 0b111, "packh">, Sched<[]>;
def PACK : ALU_rr<0b0000100, 0b100, "pack">,
Sched<[WritePACK, ReadPACK, ReadPACK]>;
def PACKH : ALU_rr<0b0000100, 0b111, "packh">,
Sched<[WritePACK, ReadPACK, ReadPACK]>;
} // Predicates = [HasStdExtZbpOrZbkb]

let Predicates = [HasStdExtZbpOrZbkb, IsRV64] in
def PACKW : ALUW_rr<0b0000100, 0b100, "packw">, Sched<[]>;
def PACKW : ALUW_rr<0b0000100, 0b100, "packw">,
Sched<[WritePACK32, ReadPACK32, ReadPACK32]>;

let Predicates = [HasStdExtZbp] in
def PACKU : ALU_rr<0b0100100, 0b100, "packu">, Sched<[]>;
def PACKU : ALU_rr<0b0100100, 0b100, "packu">,
Sched<[WritePACKU, ReadPACKU, ReadPACKU]>;

let Predicates = [HasStdExtZbp, IsRV64] in
def PACKUW : ALUW_rr<0b0100100, 0b100, "packuw">, Sched<[]>;
def PACKUW : ALUW_rr<0b0100100, 0b100, "packuw">,
Sched<[WritePACKU32, ReadPACKU32, ReadPACKU32]>;

let Predicates = [HasStdExtZbm, IsRV64] in {
def BMATFLIP : RVBUnary<0b0110000, 0b00011, 0b001, OPC_OP_IMM, "bmatflip">,
Expand Down
2 changes: 2 additions & 0 deletions llvm/lib/Target/RISCV/RISCVSchedRocket.td
Expand Up @@ -245,6 +245,8 @@ defm : UnsupportedSchedZbs;
defm : UnsupportedSchedZbe;
defm : UnsupportedSchedZbf;
defm : UnsupportedSchedZbm;
defm : UnsupportedSchedZbp;
defm : UnsupportedSchedZbr;
defm : UnsupportedSchedZbt;
defm : UnsupportedSchedZfh;
}
2 changes: 2 additions & 0 deletions llvm/lib/Target/RISCV/RISCVSchedSiFive7.td
Expand Up @@ -232,6 +232,8 @@ defm : UnsupportedSchedZbs;
defm : UnsupportedSchedZbe;
defm : UnsupportedSchedZbf;
defm : UnsupportedSchedZbm;
defm : UnsupportedSchedZbp;
defm : UnsupportedSchedZbr;
defm : UnsupportedSchedZbt;
defm : UnsupportedSchedZfh;
}
132 changes: 132 additions & 0 deletions llvm/lib/Target/RISCV/RISCVScheduleB.td
Expand Up @@ -46,6 +46,38 @@ def WriteBFP32 : SchedWrite; // BFPW
// Zbm extension
def WriteBMatrix : SchedWrite; // bmator/bmatxor/bmatflip

// Zbp extension
def WriteORC : SchedWrite; // gorc
def WriteREV : SchedWrite; // grev
def WriteORC32 : SchedWrite; // gorcw
def WriteREV32 : SchedWrite; // grevw
def WriteREVImm : SchedWrite; // grevi
def WriteORCImm : SchedWrite; // gorci
def WriteREVImm32 : SchedWrite; // greviw
def WriteORCImm32 : SchedWrite; // gorciw
def WriteSHFL : SchedWrite; // shfl
def WriteUNSHFL : SchedWrite; // unshfl
def WriteSHFL32 : SchedWrite; // shflw
def WriteUNSHFL32 : SchedWrite; // unshflw
def WriteSHFLImm : SchedWrite; // shfli
def WriteUNSHFLImm : SchedWrite; // unshfli
def WriteXPERMH : SchedWrite; // xperm.h
def WriteXPERMW : SchedWrite; // xperm.w
def WritePACK : SchedWrite; // pack/packh
def WritePACK32 : SchedWrite; // packw
def WritePACKU : SchedWrite; // packu
def WritePACKU32 : SchedWrite; // packuw

// Zbr extension
def WriteCRCB : SchedWrite; // crc32.b
def WriteCRCH : SchedWrite; // crc32.h
def WriteCRCW : SchedWrite; // crc32.w
def WriteCRCD : SchedWrite; // crc32.d
def WriteCRCCB : SchedWrite; // crc32c.b
def WriteCRCCH : SchedWrite; // crc32c.h
def WriteCRCCW : SchedWrite; // crc32c.w
def WriteCRCCD : SchedWrite; // crc32c.d

// Zbt extension
def WriteCMix : SchedWrite; // cmix
def WriteCMov : SchedWrite; // cmov
Expand Down Expand Up @@ -94,6 +126,38 @@ def ReadBFP32 : SchedRead; // BFPW
// Zbm extension
def ReadBMatrix : SchedRead; // bmator/bmatxor/bmatflip

// Zbp extension
def ReadORC : SchedRead; // gorc
def ReadREV : SchedRead; // grev
def ReadORC32 : SchedRead; // gorcw
def ReadREV32 : SchedRead; // grevw
def ReadREVImm : SchedRead; // grevi
def ReadORCImm : SchedRead; // groci
def ReadREVImm32 : SchedRead; // greviw
def ReadORCImm32 : SchedRead; // gorciw
def ReadSHFL : SchedRead; // shfl
def ReadUNSHFL : SchedRead; // unshfl
def ReadSHFL32 : SchedRead; // shflw
def ReadUNSHFL32 : SchedRead; // unshflw
def ReadSHFLImm : SchedRead; // shfli
def ReadUNSHFLImm : SchedRead; // unshfli
def ReadXPERMH : SchedRead; // xperm.h
def ReadXPERMW : SchedRead; // xperm.w
def ReadPACK : SchedRead; // pack/packh
def ReadPACK32 : SchedRead; // packw
def ReadPACKU : SchedRead; // packu
def ReadPACKU32 : SchedRead; // packuw

// Zbr extension
def ReadCRCB : SchedRead; // crc32.b
def ReadCRCH : SchedRead; // crc32.h
def ReadCRCW : SchedRead; // crc32.w
def ReadCRCD : SchedRead; // crc32.d
def ReadCRCCB : SchedRead; // crc32c.b
def ReadCRCCH : SchedRead; // crc32c.h
def ReadCRCCW : SchedRead; // crc32c.w
def ReadCRCCD : SchedRead; // crc32c.d

// Zbt extension
def ReadCMix : SchedRead; // cmix
def ReadCMov : SchedRead; // cmov
Expand Down Expand Up @@ -194,6 +258,74 @@ def : ReadAdvance<ReadBMatrix, 0>;
}
}

multiclass UnsupportedSchedZbp {
let Unsupported = true in {
def : WriteRes<WriteORC, []>;
def : WriteRes<WriteREV, []>;
def : WriteRes<WriteORC32, []>;
def : WriteRes<WriteREV32, []>;
def : WriteRes<WriteREVImm, []>;
def : WriteRes<WriteORCImm, []>;
def : WriteRes<WriteREVImm32, []>;
def : WriteRes<WriteORCImm32, []>;
def : WriteRes<WriteSHFL, []>;
def : WriteRes<WriteUNSHFL, []>;
def : WriteRes<WriteSHFL32, []>;
def : WriteRes<WriteUNSHFL32, []>;
def : WriteRes<WriteSHFLImm, []>;
def : WriteRes<WriteUNSHFLImm, []>;
def : WriteRes<WriteXPERMH, []>;
def : WriteRes<WriteXPERMW, []>;
def : WriteRes<WritePACK, []>;
def : WriteRes<WritePACK32, []>;
def : WriteRes<WritePACKU, []>;
def : WriteRes<WritePACKU32, []>;

def : ReadAdvance<ReadORC, 0>;
def : ReadAdvance<ReadREV, 0>;
def : ReadAdvance<ReadORC32, 0>;
def : ReadAdvance<ReadREV32, 0>;
def : ReadAdvance<ReadREVImm, 0>;
def : ReadAdvance<ReadORCImm, 0>;
def : ReadAdvance<ReadREVImm32, 0>;
def : ReadAdvance<ReadORCImm32, 0>;
def : ReadAdvance<ReadSHFL, 0>;
def : ReadAdvance<ReadUNSHFL, 0>;
def : ReadAdvance<ReadSHFL32, 0>;
def : ReadAdvance<ReadUNSHFL32, 0>;
def : ReadAdvance<ReadSHFLImm, 0>;
def : ReadAdvance<ReadUNSHFLImm, 0>;
def : ReadAdvance<ReadXPERMH, 0>;
def : ReadAdvance<ReadXPERMW, 0>;
def : ReadAdvance<ReadPACK, 0>;
def : ReadAdvance<ReadPACK32, 0>;
def : ReadAdvance<ReadPACKU, 0>;
def : ReadAdvance<ReadPACKU32, 0>;
}
}

multiclass UnsupportedSchedZbr {
let Unsupported = true in {
def : WriteRes<WriteCRCB, []>;
def : WriteRes<WriteCRCH, []>;
def : WriteRes<WriteCRCW, []>;
def : WriteRes<WriteCRCD, []>;
def : WriteRes<WriteCRCCB, []>;
def : WriteRes<WriteCRCCH, []>;
def : WriteRes<WriteCRCCW, []>;
def : WriteRes<WriteCRCCD, []>;

def : ReadAdvance<ReadCRCB, 0>;
def : ReadAdvance<ReadCRCH, 0>;
def : ReadAdvance<ReadCRCW, 0>;
def : ReadAdvance<ReadCRCD, 0>;
def : ReadAdvance<ReadCRCCB, 0>;
def : ReadAdvance<ReadCRCCH, 0>;
def : ReadAdvance<ReadCRCCW, 0>;
def : ReadAdvance<ReadCRCCD, 0>;
}
}

multiclass UnsupportedSchedZbt {
let Unsupported = true in {
def : WriteRes<WriteCMix, []>;
Expand Down

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