TMINS¶

Tile Operation Diagram¶

Introduction¶

Elementwise minimum of a tile and a scalar.

Math Interpretation¶

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

Assembly Syntax¶

PTO-AS form: see PTO-AS Specification.

Synchronous form:

%dst = tmins %src, %scalar : !pto.tile<...>, f32

IR Level 1 (SSA)¶

%dst = pto.tmins %src, %scalar : (!pto.tile<...>, dtype) -> !pto.tile<...>

IR Level 2 (DPS)¶

pto.tmins ins(%src, %scalar : !pto.tile_buf<...>, dtype) outs(%dst : !pto.tile_buf<...>)

C++ Intrinsic¶

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

template <typename TileData, typename T, typename... WaitEvents>
PTO_INST RecordEvent TMINS(TileData& dst, TileData& src, T scalar, WaitEvents&... events);

Constraints¶

• Implementation checks (A2A3):
• No additional static_assert/PTO_ASSERT checks are enforced by TMINS_IMPL beyond the generic Tile type invariants.
• Implementation checks (A5):
• TileData::DType must be one of: uint8_t, int8_t, uint16_t, int16_t, uint32_t, int32_t, half, float, bfloat16_t.
• Tile location must be vector (TileData::Loc == TileType::Vec).
• Static valid bounds: TileData::ValidRow <= TileData::Rows and TileData::ValidCol <= TileData::Cols.
• Runtime: src.GetValidCol() == dst.GetValidCol().
• Valid region:
• The op uses dst.GetValidRow() / dst.GetValidCol() as the iteration domain.

Examples¶

Auto¶

#include <pto/pto-inst.hpp>

using namespace pto;

void example_auto() {
  using TileT = Tile<TileType::Vec, float, 16, 16>;
  TileT src, dst;
  TMINS(dst, src, 0.0f);
}

Manual¶

#include <pto/pto-inst.hpp>

using namespace pto;

void example_manual() {
  using TileT = Tile<TileType::Vec, float, 16, 16>;
  TileT src, dst;
  TASSIGN(src, 0x1000);
  TASSIGN(dst, 0x2000);
  TMINS(dst, src, 0.0f);
}

ASM Form Examples¶

Auto Mode¶

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

PTO Assembly Form¶

%dst = tmins %src, %scalar : !pto.tile<...>, f32
# IR Level 2 (DPS)
pto.tmins ins(%src, %scalar : !pto.tile_buf<...>, dtype) outs(%dst : !pto.tile_buf<...>)