PTOAS Op Status Matrix

Rows are all public and compatibility ops provided by the latest PTOAS. The interface baseline is Little-oil/PTOAS main d852dd2dba3e5bf7a69ce8324eb88afc336e8a33: 189 public interfaces from the manual plus 15 source-only compatibility/tile interfaces still present in PTOOps.td, for a total of 204. Column statuses were checked against the current PyPTO source (last updated 2026-07-27). When an op is added or changed, update only its corresponding row.

The matrix includes public/compatibility interfaces even when their PyPTO level is internal. Separately, it excludes 32 additional PTOOps.td ops that exist only for lowering/compiler plumbing, plus other dialects such as VPTO, VMI, and SIMT.

Completion Criteria

An op is complete only if it has same-name ST coverage.

• pypto frontend✅ + ST❌: incomplete; the frontend or codegen path exists, but same-name hardware coverage is missing.
• ST✅: an active tests/st/ test ultimately generates and executes the same-name pto.* op.
• ST✅ indicates same-name execution evidence on hardware. Hardware verification still pending on other architectures remains documented in Notes.
• ST—: an internal primitive, compile-time helper, or superseded interface that is unsuitable for a standalone ST; covered by codegen or integration tests.
• A high-level test does not count as same-name coverage if it ultimately generates other PTO ops. For example, a collective decomposed into tput/tget/tnotify/twait does not count as ST coverage for tbroadcast/tgather/tscatter/treduce.

Legend

• Level: PyPTO registration/generation level (tile / tensor / tile+tensor / comm / internal).
• PTOAS API: ✅ = the latest PTOAS main provides the canonical op.
• pypto-tile / -tensor frontend: ✅ = a corresponding public frontend exists; ❌ = not added; — = not applicable to internal or communication ops.
• ST: same-name ST status for non-communication ops; communication ops use the next column.
• distributed ST: same-name distributed ST status for communication ops; — for non-communication ops.
• Notes: records only current addition/coverage facts and direct blockers, not future implementation order.

PTOAS op (pto.*)	pto-isa API	Level	PTOAS API	pypto-tile frontend	pypto-tensor frontend	ST	distributed ST	Notes
Pointers / Views (13)
pto.ptrtoint	—	internal	✅	—	—	—	—	compile-time/allocation helper; no standalone ST
pto.inttoptr	—	internal	✅	—	—	—	—	compile-time/allocation helper; no standalone ST
pto.addptr	—	internal	✅	—	—	✅	—	emitted automatically by compiler/system lowering
pto.castptr	—	internal	✅	—	—	—	—	compile-time/allocation helper; no standalone ST
pto.make_tensor_view	—	tensor	✅	❌	✅	✅	—	emitted by tensor.view
pto.get_tensor_view_dim	—	internal	✅	—	—	—	—	compile-time/allocation helper; no standalone ST
pto.get_tensor_view_stride	—	internal	✅	—	—	—	—	compile-time/allocation helper; no standalone ST
pto.partition_view	—	internal	✅	—	—	✅	—	emitted automatically by compiler/system lowering
pto.alloc_tile	—	internal	✅	—	—	✅	—	emitted automatically by compiler/system lowering
pto.alloc_multi_tile	—	internal	✅	—	—	—	—	compile-time/allocation helper; no standalone ST
pto.multi_tile_get	—	internal	✅	—	—	—	—	compile-time/allocation helper; no standalone ST
pto.subview	—	tile+tensor	✅	✅	✅	✅	—
pto.set_validshape	.SetValidShape	tile+tensor	✅	✅	✅	✅	—
Buffer IDs (2)
pto.get_buf	get_buf	internal	✅	—	—	—	—	compile-time/allocation helper; no standalone ST
pto.rls_buf	rls_buf	internal	✅	—	—	—	—	compile-time/allocation helper; no standalone ST
DMA Data Movement (10)
pto.tload	TLOAD	tile	✅	✅	❌	✅	—
pto.tprefetch	TPREFETCH	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.tprefetch_async	TPREFETCH_ASYNC	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.make_prefetch_async_context	pto::PrefetchAsyncContext	internal	✅	—	—	—	—	validated as part of async-prefetch integration
pto.get_prefetch_async_session	.session	internal	✅	—	—	—	—	validated as part of async-prefetch integration
pto.tstore	TSTORE	tile	✅	✅	❌	✅	—
pto.load_scalar	direct pointer load	tensor	✅	❌	✅	✅	—	emitted by tensor.read
pto.store_scalar	direct pointer store	tensor	✅	❌	✅	✅	—	emitted by tensor.write
pto.tmov	TMOV / TMOV_FP	tile	✅	✅	❌	✅	—
pto.ttrans	TTRANS	tile+tensor	✅	✅	✅	✅	—
Matrix Computation (12)
pto.tmatmul	TMATMUL	tile+tensor	✅	✅	✅	✅	—
pto.tmatmul.acc	TMATMUL_ACC	tile+tensor	✅	✅	✅	✅	—
pto.tmatmul.bias	TMATMUL_BIAS	tile	✅	✅	❌	✅	—
pto.tmatmul.mx	TMATMUL_MX	tile	✅	❌	❌	❌	—	backend hook exists; IR/Python frontend and ST are missing
pto.tmatmul.mx.acc	TMATMUL_MX (overload)	tile	✅	❌	❌	❌	—	backend hook exists; IR/Python frontend and ST are missing
pto.tmatmul.mx.bias	TMATMUL_MX (overload)	tile	✅	❌	❌	❌	—	backend hook exists; IR/Python frontend and ST are missing
pto.tgemv	TGEMV	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tgemv.acc	TGEMV_ACC	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tgemv.bias	TGEMV_BIAS	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tgemv.mx	TGEMV_MX	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.tgemv.mx.acc	TGEMV_MX (overload)	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.tgemv.mx.bias	TGEMV_MX (overload)	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
Vector Arithmetic and Math (42)
pto.tadd	TADD	tile+tensor	✅	✅	✅	✅	—
pto.tsub	TSUB	tile+tensor	✅	✅	✅	✅	—
pto.tmul	TMUL	tile+tensor	✅	✅	✅	✅	—
pto.tdiv	TDIV	tile+tensor	✅	✅	✅	✅	—	verified on A2/A3 hardware; A5 hardware verification pending
pto.tmax	TMAX	tile+tensor	✅	✅	✅	✅	—
pto.tmin	TMIN	tile+tensor	✅	✅	✅	✅	—
pto.trem	TREM	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tpartadd	TPARTADD	tile+tensor	✅	✅	✅	✅	—
pto.tpartmax	TPARTMAX	tile+tensor	✅	✅	✅	✅	—
pto.tpartmin	TPARTMIN	tile+tensor	✅	✅	✅	✅	—
pto.tpartargmax	TPARTARGMAX	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.tpartargmin	TPARTARGMIN	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.tpartmul	TPARTMUL	tile+tensor	✅	✅	✅	✅	—
pto.tprelu	TPRELU	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tadds	TADDS	tile+tensor	✅	✅	✅	✅	—
pto.tsubs	TSUBS	tile+tensor	✅	✅	✅	✅	—	verified on A2/A3 hardware; A5 hardware verification pending
pto.tmuls	TMULS	tile+tensor	✅	✅	✅	✅	—
pto.taxpy	TAXPY	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.tdivs	TDIVS	tile+tensor	✅	✅	✅	✅	—
pto.tmaxs	TMAXS	tile	✅	✅	❌	✅	—
pto.tmins	TMINS	tile	✅	✅	❌	✅	—
pto.trems	TREMS	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.taddc	TADD + TADD	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tsubc	TSUB + TADD	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.taddsc	TADDS + TADD	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tsubsc	TSUBS + TADD	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tabs	TABS	tile+tensor	✅	✅	✅	✅	—
pto.tneg	TNEG	tile+tensor	✅	✅	✅	✅	—
pto.texp	TEXP	tile+tensor	✅	✅	✅	✅	—
pto.tlog	TLOG	tile+tensor	✅	✅	✅	✅	—	verified on A2/A3 hardware; A5 hardware verification pending
pto.tsqrt	TSQRT	tile+tensor	✅	✅	✅	✅	—
pto.ttri	TTRI	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.trsqrt	TRSQRT	tile+tensor	✅	✅	✅	✅	—
pto.trecip	TRECIP	tile+tensor	✅	✅	✅	✅	—
pto.trelu	TRELU	tile	✅	✅	❌	✅	—
pto.tlrelu	TLRELU	tile	✅	✅	❌	✅	—
pto.taddrelu	VADDRELU	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.tfmod	TFMOD	tile+tensor	✅	✅	✅	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tfmods	TFMODS	tile+tensor	✅	✅	✅	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tpow	TPOW	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.tpows	TPOWS	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.trandom	TRANDOM	tile+tensor	✅	✅	✅	✅	—	PTOAS source-only compatibility interface
Reductions (13)
pto.trowsum	TROWSUM	tile+tensor	✅	✅	✅	✅	—
pto.trowmax	TROWMAX	tile+tensor	✅	✅	✅	✅	—
pto.trowargmax	TROWARGMAX	tile+tensor	✅	✅	✅	✅	—
pto.trowmin	TROWMIN	tile+tensor	✅	✅	✅	✅	—	verified on A2/A3 hardware; A5 hardware verification pending
pto.trowargmin	TROWARGMIN	tile+tensor	✅	✅	✅	✅	—
pto.trowprod	TROWPROD	tile+tensor	✅	✅	✅	✅	—
pto.thistogram	THISTOGRAM	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.tcolsum	TCOLSUM	tile+tensor	✅	✅	✅	✅	—
pto.tcolmax	TCOLMAX	tile+tensor	✅	✅	✅	✅	—
pto.tcolargmax	TCOLARGMAX	tile+tensor	✅	✅	✅	✅	—
pto.tcolmin	TCOLMIN	tile+tensor	✅	✅	✅	✅	—
pto.tcolargmin	TCOLARGMIN	tile+tensor	✅	✅	✅	✅	—
pto.tcolprod	TCOLPROD	tile+tensor	✅	✅	✅	✅	—	PTOAS source-only compatibility interface
Broadcasts (17)
pto.trowexpand	TROWEXPAND	tile+tensor	✅	✅	✅	✅	—
pto.tcolexpand	TCOLEXPAND	tile+tensor	✅	✅	✅	✅	—
pto.tcolexpandmul	TCOLEXPANDMUL	tile+tensor	✅	✅	✅	✅	—
pto.tcolexpandadd	TCOLEXPANDADD	tile+tensor	✅	✅	✅	✅	—
pto.tcolexpanddiv	TCOLEXPANDDIV	tile+tensor	✅	✅	✅	✅	—
pto.tcolexpandsub	TCOLEXPANDSUB	tile+tensor	✅	✅	✅	✅	—
pto.tcolexpandexpdif	TCOLEXPANDEXPDIF	tile+tensor	✅	✅	✅	✅	—
pto.tcolexpandmax	TCOLEXPANDMAX	tile+tensor	✅	✅	✅	✅	—
pto.tcolexpandmin	TCOLEXPANDMIN	tile+tensor	✅	✅	✅	✅	—
pto.trowexpandmul	TROWEXPANDMUL	tile+tensor	✅	✅	✅	✅	—
pto.trowexpanddiv	TROWEXPANDDIV	tile+tensor	✅	✅	✅	✅	—
pto.trowexpandsub	TROWEXPANDSUB	tile+tensor	✅	✅	✅	✅	—
pto.trowexpandadd	TROWEXPANDADD	tile+tensor	✅	✅	✅	✅	—	verified on A2/A3 hardware; A5 hardware verification pending
pto.trowexpandexpdif	TROWEXPANDEXPDIF	tile+tensor	✅	✅	✅	✅	—
pto.trowexpandmax	TROWEXPANDMAX	tile+tensor	✅	✅	✅	✅	—
pto.trowexpandmin	TROWEXPANDMIN	tile+tensor	✅	✅	✅	✅	—
pto.texpands	TEXPANDS	tile+tensor	✅	✅	✅	✅	—
Comparison and Selection (4)
pto.tcmp	TCMP	tile+tensor	✅	✅	✅	✅	—
pto.tcmps	TCMPS	tile	✅	✅	❌	✅	—
pto.tsel	TSEL	tile	✅	✅	❌	✅	—
pto.tsels	TSELS	tile	✅	✅	❌	❌	—	frontend/codegen path exists; same-name ST is missing
Bitwise Operations (11)
pto.tand	TAND	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tor	TOR	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.txor	TXOR	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tshl	TSHL	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tshr	TSHR	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tnot	TNOT	tile	✅	✅	❌	✅	—
pto.tands	TANDS	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tors	TORS	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.txors	TXORS	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tshls	TSHLS	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
pto.tshrs	TSHRS	tile	✅	✅	❌	❌	—	path exists; historical ISA/semantic issue requires revalidation against the current pin
Data Rearrangement (15)
pto.tconcat	TCONCAT	tile+tensor	✅	✅	✅	✅	—
pto.tconcatidx	TCONCAT (indexed)	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.tgather	TGATHER	tile+tensor	✅	✅	✅	✅	—
pto.tgatherb	TGATHERB	tile	✅	❌	❌	❌	—	backend hook exists; IR/Python frontend and ST are missing
pto.tscatter	TSCATTER	tile+tensor	✅	✅	✅	✅	—
pto.mgather	MGATHER	tile	✅	❌	❌	❌	—	the current backend emits the legacy name pto.tmgather
pto.mscatter	MSCATTER	tile	✅	✅	❌	✅	—
pto.treshape	TRESHAPE	tile+tensor	✅	✅	✅	✅	—
pto.tinsert	TINSERT	tile	✅	❌	❌	✅	—	emitted by tile.assemble / automatic matmul lowering
pto.textract	TEXTRACT	tile	✅	✅	❌	✅	—
pto.tfillpad	TFILLPAD	tile+tensor	✅	✅	✅	✅	—
pto.tfillpad_expand	TFILLPAD_EXPAND	tile+tensor	✅	✅	✅	✅	—
pto.tfillpad_inplace	TFILLPAD_INPLACE	tile	✅	✅	❌	❌	—	the current codegen emits pto.tfillpad
pto.textract_fp	TEXTRACT_FP / TEXTRACT	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.tinsert_fp	TINSERT_FP / TINSERT	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
Sorting (2)
pto.tsort32	TSORT32	tile+tensor	✅	✅	✅	✅	—
pto.tmrgsort	TMRGSORT	tile+tensor	✅	✅	✅	✅	—
Type Conversion (1)
pto.tcvt	TCVT	tile+tensor	✅	✅	✅	✅	—
Integer Sequences (1)
pto.tci	TCI	tile+tensor	✅	✅	✅	✅	—
Scalar Element Access (2)
pto.tgetval	.GetValue	tile	✅	✅	❌	✅	—	emitted by tile.read
pto.tsetval	.SetValue	tile	✅	✅	❌	✅	—	emitted by tile.write
MX Quantization (6)
pto.tget_scale_addr	GetScaleAddr + TASSIGN	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.tmov.fp	TMOV_FP	tile	✅	❌	❌	❌	—	backend hook exists; IR/Python frontend and ST are missing
pto.tquant	TQUANT	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.tquant.mx	TQUANT (overload)	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
pto.tstore_fp	TSTORE_FP	tile	✅	❌	❌	❌	—	the current backend emits pto.tstore.fp
pto.tdequant	TDEQUANT	tile	✅	❌	❌	❌	—	MISSING: lacks a complete frontend/codegen/ST path
Synchronization (8)
pto.barrier	pipe_barrier / dsb	internal	✅	—	—	✅	—	emitted automatically by compiler/system lowering
pto.barrier_sync	barrier lowering	internal	✅	—	—	—	—	internal synchronization/scheduling primitive; no standalone ST
pto.record_event	set_flag lowering	internal	✅	—	—	—	—	internal synchronization/scheduling primitive; no standalone ST
pto.wait_event	wait_flag lowering	internal	✅	—	—	—	—	internal synchronization/scheduling primitive; no standalone ST
pto.syncall	SYNCALL	internal	✅	—	—	✅	—	emitted automatically by compiler/system lowering
pto.sync.set	set_intra_block / FFTS	internal	✅	—	—	✅	—	emitted automatically by compiler/system lowering
pto.sync.wait	wait_intra_block / wait_flag_dev	internal	✅	—	—	✅	—	emitted automatically by compiler/system lowering
pto.tsync	TSYNC	internal	✅	—	—	—	—	internal synchronization/scheduling primitive; no standalone ST
Core Virtualization (2)
pto.section.cube	—	internal	✅	—	—	—	—	internal synchronization/scheduling primitive; no standalone ST
pto.section.vector	—	internal	✅	—	—	—	—	internal synchronization/scheduling primitive; no standalone ST
Frontend Pipe (15)
pto.reserve_buffer	—	internal	✅	—	—	✅	—	emitted automatically by compiler/system lowering
pto.import_reserved_buffer	—	internal	✅	—	—	✅	—	emitted automatically by compiler/system lowering
pto.aic_initialize_pipe	TPipe / internal init	internal	✅	—	—	✅	—	emitted automatically by compiler/system lowering
pto.aiv_initialize_pipe	TPipe / internal init	internal	✅	—	—	✅	—	emitted automatically by compiler/system lowering
pto.talloc_to_aiv	TALLOC	internal	✅	—	—	—	—	covered by pipe-lifecycle integration
pto.talloc_to_aic	TALLOC	internal	✅	—	—	—	—	covered by pipe-lifecycle integration
pto.tpush_to_aiv	TPUSH	tile	✅	✅	❌	✅	—
pto.tpush_to_aic	TPUSH	tile	✅	✅	❌	✅	—
pto.tpop_from_aic	TPOP	tile	✅	✅	❌	✅	—
pto.tpop_from_aiv	TPOP	tile	✅	✅	❌	✅	—
pto.tfree_from_aic	TFREE	internal	✅	—	—	✅	—	emitted automatically by compiler/system lowering
pto.tfree_from_aiv	TFREE	internal	✅	—	—	✅	—	emitted automatically by compiler/system lowering
pto.tpush	TPUSH	internal	✅	—	—	—	—	legacy; superseded by direction-specific interfaces
pto.tpop	TPOP	internal	✅	—	—	—	—	legacy; superseded by direction-specific interfaces
pto.tfree	TFREE	internal	✅	—	—	—	—	legacy; superseded by direction-specific interfaces
Runtime Intrinsics (4)
pto.get_block_idx	get_block_idx	tile+tensor	✅	✅	✅	—	—	codegen converts this to a wrapper parameter; no same-name PTO op is emitted
pto.get_subblock_idx	get_subblockid	tile+tensor	✅	✅	✅	—	—	codegen converts this to a wrapper parameter; no same-name PTO op is emitted
pto.get_block_num	get_block_num	tile+tensor	✅	✅	✅	—	—	codegen converts this to a wrapper parameter; no same-name PTO op is emitted
pto.get_subblock_num	get_subblockdim	internal	✅	—	—	—	—	codegen converts this to a wrapper parameter; no same-name PTO op is emitted
Debugging (3)
pto.tprint	TPRINT	tile	✅	❌	❌	❌	—	backend hook exists; IR/Python frontend and ST are missing
pto.print	cce::printf	internal	✅	—	—	—	—	internal/debugging helper; no standalone ST
pto.trap	trap	internal	✅	—	—	—	—	internal/debugging helper; no standalone ST
Communication (14)
pto.comm.build_async_session	pto::comm::BuildAsyncSession	comm	✅	—	—	—	❌	distributed interface lacks same-name ST coverage
pto.comm.tput_async	TPUT_ASYNC	comm	✅	—	—	—	❌	distributed interface lacks same-name ST coverage
pto.comm.tget_async	TGET_ASYNC	comm	✅	—	—	—	❌	distributed interface lacks same-name ST coverage
pto.comm.wait_async_event	AsyncEvent.Wait	comm	✅	—	—	—	❌	distributed interface lacks same-name ST coverage
pto.comm.test_async_event	AsyncEvent.Test	comm	✅	—	—	—	❌	distributed interface lacks same-name ST coverage
pto.comm.tput	TPUT	comm	✅	—	—	—	✅	test_l3_put / remote_store
pto.comm.tget	TGET	comm	✅	—	—	—	✅	test_l3_get
pto.comm.tnotify	TNOTIFY	comm	✅	—	—	—	✅	test_l3_notify_wait
pto.comm.twait	TWAIT	comm	✅	—	—	—	✅	test_l3_notify_wait
pto.comm.ttest	TTEST	comm	✅	—	—	—	❌	distributed interface lacks same-name ST coverage
pto.comm.tbroadcast	TBROADCAST	comm	✅	—	—	—	❌	high-level tests decompose this op; there is currently no same-name PTO ST
pto.comm.tgather	TGATHER	comm	✅	—	—	—	❌	high-level tests decompose this op; there is currently no same-name PTO ST
pto.comm.tscatter	TSCATTER	comm	✅	—	—	—	❌	high-level tests decompose this op; there is currently no same-name PTO ST
pto.comm.treduce	TREDUCE	comm	✅	—	—	—	❌	high-level tests decompose this op; there is currently no same-name PTO ST
Stack-local Arrays / Structs (6)
pto.declare_local_array	—	internal	✅	—	—	✅	—	emitted automatically by compiler/system lowering
pto.local_array_get	—	internal	✅	—	—	✅	—	emitted automatically by compiler/system lowering
pto.local_array_set	—	internal	✅	—	—	✅	—	emitted automatically by compiler/system lowering
pto.declare_struct	—	internal	✅	—	—	—	—	internal/debugging helper; no standalone ST
pto.struct_get	—	internal	✅	—	—	—	—	internal/debugging helper; no standalone ST
pto.struct_set	—	internal	✅	—	—	—	—	internal/debugging helper; no standalone ST
Source Compatibility / Manual Mode (1)
pto.tassign	TASSIGN	internal	✅	—	—	—	—	inactive backend hook; no standalone ST

Stats: 204 public/compatibility PTOAS ops; 113 have a pypto tile frontend and 75 have a tensor frontend; 110 have same-name ST coverage (106 regular STs and 4 distributed STs); 62 lack same-name ST coverage (52 regular and 10 distributed); within these 204, another 32 ops are not suitable for standalone STs.