TMOV_FP¶

指令示意图¶

简介¶

使用缩放 (fp) Tile 作为向量量化参数，将累加器 Tile 移动/转换到目标 Tile。

数学语义¶

Conceptually converts each element using an implementation-defined quantization/dequantization configuration derived from fp:

汇编语法¶

PTO-AS 形式：参见 PTO-AS Specification.

同步形式：

%dst = tmov.fp %src, %fp : !pto.tile<...>, !pto.tile<...> -> !pto.tile<...>

AS Level 1 (SSA)¶

%dst = pto.tmov.fp %src, %fp : !pto.tile<...>, !pto.tile<...> -> !pto.tile<...>

AS Level 2 (DPS)¶

pto.tmov.fp ins(%src, %fp : !pto.tile_buf<...>, !pto.tile_buf<...>) outs(%dst : !pto.tile_buf<...>)

AS Level 1（SSA）¶

%dst = pto.tmov.fp %src, %fp : !pto.tile<...>, !pto.tile<...> -> !pto.tile<...>

AS Level 2（DPS）¶

pto.tmov.fp ins(%src, %fp : !pto.tile_buf<...>, !pto.tile_buf<...>) outs(%dst : !pto.tile_buf<...>)

C++ 内建接口¶

声明于 include/pto/common/pto_instr.hpp and include/pto/common/constants.hpp:

template <typename DstTileData, typename SrcTileData, typename FpTileData, ReluPreMode reluMode = ReluPreMode::NoRelu,
          typename... WaitEvents>
PTO_INST RecordEvent TMOV_FP(DstTileData &dst, SrcTileData &src, FpTileData &fp, WaitEvents &... events);

约束¶

• 实现检查 (A2A3):
  • The fp path is only supported for accumulator conversion and is validated by internal compile-time checks in TMOV_IMPL(dst, src, fp).
  • FpTileData::Loc must be TileType::Scaling (static_assert).
• 实现检查 (A5):
  • Validated by CheckTMovAccValid(...) and related compile-time checks in TMOV_IMPL(dst, src, fp).
  • FpTileData::Loc must be TileType::Scaling (static_assert).
  • Destination location is target-dependent (Vec or Mat are supported in the fp path).

示例¶

自动（Auto）¶

#include <pto/pto-inst.hpp>

using namespace pto;

void example_auto() {
  using AccT = TileAcc<float, 16, 16>;
  using DstT = Tile<TileType::Vec, int8_t, 16, 16>;
  using FpT = Tile<TileType::Scaling, uint64_t, 1, 16, BLayout::RowMajor, 1, 16, SLayout::NoneBox>;

  AccT acc;
  DstT dst;
  FpT fp;
  TMOV_FP(dst, acc, fp);
}

手动（Manual）¶

#include <pto/pto-inst.hpp>

using namespace pto;

void example_manual() {
  using AccT = TileAcc<float, 16, 16>;
  using DstT = Tile<TileType::Vec, int8_t, 16, 16>;
  using FpT = Tile<TileType::Scaling, uint64_t, 1, 16, BLayout::RowMajor, 1, 16, SLayout::NoneBox>;

  AccT acc;
  DstT dst;
  FpT fp;
  TASSIGN(acc, 0x1000);
  TASSIGN(dst, 0x2000);
  TASSIGN(fp,  0x3000);
  TMOV_FP(dst, acc, fp);
}