TAND

Instruction Diagram

Introduction

Element-wise bitwise AND on two tiles.

Mathematical Semantics

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

$$\mathrm{dst}_{i,j} = \mathrm{src0}_{i,j} \;\&\; \mathrm{src1}_{i,j}$$

Assembly Syntax

Synchronous form:

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

AS Level 1 (SSA)

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

AS Level 2 (DPS)

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

C++ Built-in APIs

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

The public include header is <pto/pto-inst.hpp>, and the internal declaration is located in pto/common/pto_instr.hpp.

template <typename TileData, typename... WaitEvents>
PTO_INST RecordEvent TAND(TileData &dst, TileData &src0, TileData &src1, WaitEvents &... events);

Constraints

• Implementation check (Atlas A2/A3 training products/Atlas A2/A3 inference products):
  • The supported element types are 1-byte, 2-byte, or 4-byte integer types.
  • dst, src0, and src1 must use the same element type.
  • dst, src0, and src1 must be row-major.
  • At runtime: src0.GetValidRow()/GetValidCol() and src1.GetValidRow()/GetValidCol() must be consistent with dst.
• Implementation check (Ascend 950PR/Ascend 950DT):
  • The supported element types are 1-byte, 2-byte, or 4-byte integer types.
  • dst, src0, and src1 must use the same element type.
  • dst, src0, and src1 must be row-major.
  • Runtime: src0.GetValidRow()/GetValidCol() and src1.GetValidRow()/GetValidCol() must be consistent with dst.
• Valid region:
  • This operation uses dst.GetValidRow()/dst.GetValidCol() as the iteration domain.

Examples

#include <pto/pto-inst.hpp>

using namespace pto;

void example() {
  using TileT = Tile<TileType::Vec, int32_t, 16, 16>;
  TileT a, b, out;
  TAND(out, a, b);
}

ASM Examples

Automatic Mode

# Automatic mode: the compiler/runtime is responsible for resource placement and scheduling.
%dst = pto.tand %src0, %src1 : (!pto.tile<...>, !pto.tile<...>) -> !pto.tile<...>

Manual Mode

# Manual mode: explicitly bind resources first, then issue the instruction.
# Optional (when the instruction contains tile operands):
# pto.tassign %arg0, @tile(0x1000)
# pto.tassign %arg1, @tile(0x2000)
%dst = pto.tand %src0, %src1 : (!pto.tile<...>, !pto.tile<...>) -> !pto.tile<...>

PTO Assembly Form

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