TXOR¶

Tile Operation Diagram¶

Introduction¶

Elementwise bitwise XOR of two tiles.

Math Interpretation¶

For each element (i, j) in the valid region:

Assembly Syntax¶

PTO-AS form: see PTO-AS Specification.

Synchronous form:

%dst = txor %src0, %src1 : !pto.tile<...>

AS Level 1 (SSA)¶

%dst = pto.txor %src0, %src1 : (!pto.tile<...>, !pto.tile<...>) -> !pto.tile<...>

AS Level 2 (DPS)¶

pto.txor ins(%src0, %src1 : !pto.tile_buf<...>, !pto.tile_buf<...>) outs(%dst : !pto.tile_buf<...>)

C++ Intrinsic¶

Declared in include/pto/common/pto_instr.hpp:

template <typename TileDataDst, typename TileDataSrc0, typename TileDataSrc1, typename TileDataTmp,
          typename... WaitEvents>
PTO_INST RecordEvent TXOR(TileDataDst &dst, TileDataSrc0 &src0, TileDataSrc1 &src1, TileDataTmp &tmp, WaitEvents &... events);

Constraints¶

• Intended for integral element types.
• The op iterates over dst.GetValidRow() / dst.GetValidCol().
• Temporary space is required by A3 for calculation, while not used by A5.
• For A3, 2 source Tile, destination Tile, temporary space must in different memory range without overlapping.

Examples¶

#include <pto/pto-inst.hpp>

using namespace pto;

void example() {
  using TileDst = Tile<TileType::Vec, uint32_t, 16, 16>;
  using TileSrc0 = Tile<TileType::Vec, uint32_t, 16, 16>;
  using TileSrc1 = Tile<TileType::Vec, uint32_t, 16, 16>;
  using TileTmp = Tile<TileType::Vec, uint32_t, 16, 16>;
  TileDst dst;
  TileSrc0 src0;
  TileSrc1 src1;
  TileTmp tmp;
  TXOR(dst, src0, src1, tmp);
}

ASM Form Examples¶

Auto Mode¶

# Auto mode: compiler/runtime-managed placement and scheduling.
%dst = pto.txor %src0, %src1 : (!pto.tile<...>, !pto.tile<...>) -> !pto.tile<...>

Manual Mode¶

# Manual mode: bind resources explicitly before issuing the instruction.
# Optional for tile operands:
# pto.tassign %arg0, @tile(0x1000)
# pto.tassign %arg1, @tile(0x2000)
%dst = pto.txor %src0, %src1 : (!pto.tile<...>, !pto.tile<...>) -> !pto.tile<...>

PTO Assembly Form¶

%dst = txor %src0, %src1 : !pto.tile<...>
# AS Level 2 (DPS)
pto.txor ins(%src0, %src1 : !pto.tile_buf<...>, !pto.tile_buf<...>) outs(%dst : !pto.tile_buf<...>)