TXOR

Tile Operation Diagram

Introduction

Elementwise bitwise XOR of two tiles.

Math Interpretation

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

$${\mathrm{d}\mathrm{s}\mathrm{t}}_{i,j}={\mathrm{s}\mathrm{r}\mathrm{c}0}_{i,j}\oplus {\mathrm{s}\mathrm{r}\mathrm{c}1}_{i,j}$$

Assembly Syntax

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

• The op iterates over dst.GetValidRow() / dst.GetValidCol().
• Implementation checks (A5):
  • dst, src0, and src1 element types must match.
  • Supported element types are uint8_t, int8_t, uint16_t, int16_t, uint32_t, and int32_t.
  • dst, src0, and src1 must be row-major.
  • src0.GetValidRow()/GetValidCol() and src1.GetValidRow()/GetValidCol() must match dst.
• Implementation checks (A2A3):
  • dst, src0, src1, and tmp element types must match.
  • Supported element types are uint8_t, int8_t, uint16_t, and int16_t.
  • dst, src0, src1, and tmp must be row-major.
  • src0, src1, and tmp valid shapes must match dst.
  • In manual mode, dst, src0, src1, and tmp must not overlap in memory.

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: resources must be bound 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<...>)