[Bug] TGATHER compare form lowering drops the `offset` argument, causing C++ compile failure

[Little-oil]

Component

PTO Dialect / ODS (include/PTO/IR)

Description

The compare form of pto.gather (with a CmpMode) is lowered incorrectly to the C++ TGATHER template call: the offset argument is placed into the template non-type parameter list instead of being passed as a runtime function argument. The resulting call does not match the real TGATHER signature and fails to compile.

Reproduction (minimal)

func.func @main(
    %src:  !pto.tile<vec, i32, 16x64, row_major, none_box, null, null>,
    %kv:   !pto.tile<vec, f16, 1x1,   row_major, none_box, null, null>,
    %tmp:  !pto.tile<vec, i32, 1x16,  row_major, none_box, null, null>,
    %dst:  !pto.tile<vec, i32, 16x8,  row_major, none_box, null, null>,
    %cdst: !pto.tile<vec, u8,  16x64, row_major, none_box, null, null>
) {
  pto.tgather ins(%src, %kv, %tmp : ...) outs(%dst, %cdst : ...)
              {cmpMode = #pto<cmp gt>, offset = 0 : i32}
  return
}

Expected behavior

offset is emitted as the last runtime function argument; the template parameter list ends at CmpMode:

// 6 runtime args — matches TGATHER signature
TGATHER<
  Tile<TileType::Vec, int32_t, 16, 8,  BLayout::RowMajor, -1, -1, SLayout::NoneBox, 512, PadValue::Null, CompactMode::Null>,
  Tile<TileType::Vec, half,    16, 64, BLayout::RowMajor, -1, -1, SLayout::NoneBox, 512, PadValue::Null, CompactMode::Null>,
  Tile<TileType::Vec, int32_t, 1,  16, BLayout::RowMajor, -1, -1, SLayout::NoneBox, 512, PadValue::Null, CompactMode::Null>,
  Tile<TileType::Vec, uint8_t, 16, 64, BLayout::RowMajor, -1, -1, SLayout::NoneBox, 512, PadValue::Null, CompactMode::Null>,
  CmpMode::GT
>(v28, v17, v15, v32, v24, 0);

---

Actual behavior / error logs

`offset` is placed in the **template** parameter list as a trailing non-type argument `0`, and the call only passes **5** runtime arguments:


// 5 runtime args, trailing `0` in template list — no matching overload
TGATHER<
  Tile<TileType::Vec, int32_t, 16, 8,  BLayout::RowMajor, -1, -1, SLayout::NoneBox, 512, PadValue::Null, CompactMode::Null>,
  Tile<TileType::Vec, half,    16, 64, BLayout::RowMajor, -1, -1, SLayout::NoneBox, 512, PadValue::Null, CompactMode::Null>,
  Tile<TileType::Vec, int32_t, 1,  16, BLayout::RowMajor, -1, -1, SLayout::NoneBox, 512, PadValue::Null, CompactMode::Null>,
  Tile<TileType::Vec, uint8_t, 16, 64, BLayout::RowMajor, -1, -1, SLayout::NoneBox, 512, PadValue::Null, CompactMode::Null>,
  CmpMode::GT, 0
>(v28, v17, v15, v32, v24);


Compiler error:


error: no matching function for call to 'TGATHER'


---

Git commit

Host platform

None

Target Ascend arch (if relevant)

None

PTOAS build level (if relevant)

None