TADDSC

Tile Operation Diagram

TADDSC tile operation

Introduction

Elementwise fused add with scalar and a second tile: src0 + scalar + src1.

Math Interpretation

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

\[ \mathrm{dst}_{i,j} = \mathrm{src0}_{i,j} + \mathrm{scalar} + \mathrm{src1}_{i,j} \]

Assembly Syntax

PTO-AS form: see PTO-AS Specification.

Synchronous form:

%dst = taddsc %src0, %scalar, %src1 : !pto.tile<...>, f32, !pto.tile<...>

AS Level 1 (SSA)

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

AS Level 2 (DPS)

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

IR Level 1 (SSA)

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

IR Level 2 (DPS)

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

C++ Intrinsic

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

template <typename TileData, typename... WaitEvents>
PTO_INST RecordEvent TADDSC(TileData& dst, TileData& src0, typename TileData::DType scalar, TileData& src1,
                            WaitEvents&... events);

Constraints

  • Implementation checks (A2A3):
    • TileData::DType must be one of: int32_t, int16_t, half, float.
    • Tile layout must be row-major (TileData::isRowMajor).
  • Implementation checks (A5):
    • TileData::DType must be one of: int32_t, int16_t, half, float.
    • Tile layout must be row-major (TileData::isRowMajor).
  • Common constraints:
    • Tile location must be vector (TileData::Loc == TileType::Vec).
    • Static valid bounds: TileData::ValidRow <= TileData::Rows and TileData::ValidCol <= TileData::Cols.
    • Runtime: dst, src0 and src1 must have the same valid row/col.
    • Scalar type must match the Tile data type.
  • Valid region:
    • The op 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, float, 16, 16>;
  TileT a, b, out;
  TADDSC(out, a, 2.0f, b);
}

ASM Form Examples

Auto Mode

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

PTO Assembly Form

%dst = taddsc %src0, %scalar, %src1 : !pto.tile<...>, f32, !pto.tile<...>
# AS Level 2 (DPS)
pto.taddsc ins(%src0, %scalar, %src1 : !pto.tile_buf<...>, dtype, !pto.tile_buf<...>) outs(%dst : !pto.tile_buf<...>)