Commit Graph

14 Commits

Author SHA1 Message Date
Ahmed Taei
16e82d855a [mlir] Add primitive transform pattern to rewrite linalg.fill into vector.broadcast form.
Summary:
This diff adds a transformation patter to rewrite linalg.fill as broadcasting a scaler into a vector.
It uses the same preconditioning as matmul (memory is contiguous).

Reviewers: nicolasvasilache

Subscribers: mehdi_amini, rriddle, jpienaar, burmako, shauheen, antiagainst, arpith-jacob, mgester, lucyrfox, aartbik, liufengdb, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D73391
2020-01-28 11:21:56 -08:00
Mehdi Amini
308571074c Mass update the MLIR license header to mention "Part of the LLVM project"
This is an artifact from merging MLIR into LLVM, the file headers are
now aligned with the rest of the project.
2020-01-26 03:58:30 +00:00
Nicolas Vasilache
64c4dcb5ee [mlir][Linalg] Extend linalg vectorization to MatmulOp
Summary:
This is a simple extension to allow vectorization to work not only on GenericLinalgOp
but more generally across named ops too.
For now, this still only vectorizes matmul-like ops but is a step towards more
generic vectorization of Linalg ops.

Reviewers: ftynse

Subscribers: mehdi_amini, rriddle, jpienaar, burmako, shauheen, antiagainst, arpith-jacob, mgester, lucyrfox, aartbik, liufengdb, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D72942
2020-01-17 17:09:47 -05:00
Nicolas Vasilache
2140a973f2 [mlir][Linalg] Extend generic ops to allow tensors
Summary:
    This diff adds support to allow `linalg.generic` and
    `linalg.indexed_generic` to take tensor input and output
    arguments.

    The subset of output tensor operand types must appear
    verbatim in the result types after an arrow. The parser,
    printer and verifier are extended to accomodate this
    behavior.

    The Linalg operations now support variadic ranked tensor
    return values. This extension exhibited issues with the
    current handling of NativeCall in RewriterGen.cpp. As a
    consequence, an explicit cast to `SmallVector<Value, 4>`
    is added in the proper place to support the new behavior
    (better suggestions are welcome).

    Relevant cleanups and name uniformization are applied.

    Relevant invalid and roundtrip test are added.

    Reviewers: mehdi_amini, rriddle, jpienaar, antiagainst, ftynse

    Subscribers: burmako, shauheen, llvm-commits

    Tags: #llvm

    Differential Revision: https://reviews.llvm.org/D72022
2020-01-02 13:54:57 -05:00
Nicolas Vasilache
a9d9aadcdf [mlir][Linalg] NFC - Cleanup Linalg Declarative Transformations
Summary:
This is part of an ongoing cleanup and uniformization work.

This diff performs 3 types of cleanups:
1. Uniformize transformation names.
2. Replace all pattern operands that need not be captured by `$_`
3. Replace all usage of pattern captured op by the normalized `op` name (instead of positional parameters such as `$0`)

Reviewers: ftynse

Subscribers: mehdi_amini, rriddle, jpienaar, burmako, shauheen, antiagainst, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D72081
2020-01-02 10:11:37 -05:00
Mehdi Amini
56222a0694 Adjust License.txt file to use the LLVM license
PiperOrigin-RevId: 286906740
2019-12-23 15:33:37 -08:00
Jose Ignacio Gomez
3ae56c4135 [Linalg] Expose subview promotion as a declarative pattern
This PR targest issue tensorflow/mlir#295. It exposes the already existing
subiew promotion pass as a declarative pattern

Change-Id: If901ebef9fb53fcd0b12ecc536f6b174ce320b92

Closes tensorflow/mlir#315

COPYBARA_INTEGRATE_REVIEW=https://github.com/tensorflow/mlir/pull/315 from tetuante:issue295 8e5f268b6d85f31015c33505329dbd7a4db97ac5
PiperOrigin-RevId: 285801463
2019-12-16 10:50:45 -08:00
Nicolas Vasilache
508d4e672e Continue refactoring StructuredOps utilities
This CL adds more common information to StructuredOpsUtils.h
The n_view attribute is retired in favor of args_in + args_out but the CL is otherwise NFC.

PiperOrigin-RevId: 285000621
2019-12-11 09:27:34 -08:00
Nicolas Vasilache
995048d7b7 Fold TestLinalgTilePermutePatterns into TestLinalgTransformPatterns - NFC
Centralize all patterns that test Linalg transforms in a single pass.

PiperOrigin-RevId: 284835938
2019-12-10 13:26:15 -08:00
Jose Ignacio Gomez
b19fed5415 [Linalg] Add a Linalg iterator permutation transformation
This patch closes issue tensorflow/mlir#272
We add a standalone iterator permutation transformation to Linalg.
This transformation composes a permutation map with the maps in the
"indexing_maps" attribute. It also permutes "iterator_types"
accordingly.

Change-Id: I7c1e693b8203aeecc595a7c012e738ca1100c857

Closes tensorflow/mlir#307

COPYBARA_INTEGRATE_REVIEW=https://github.com/tensorflow/mlir/pull/307 from tetuante:issue272 f7908d58792f4111119721885e247045104f1131
PiperOrigin-RevId: 284824102
2019-12-10 12:25:43 -08:00
Nicolas Vasilache
91c0074624 [StructuredOps][Linalg] Add a primitive pattern to rewrite the linalg.generic form of matmul to vector form.
This CL uses the newly expanded matcher support to easily detect when a linalg.generic has a multiply-accumulate body. A linalg.generic with such a body is rewritten as a vector contraction.
This CL additionally limits the rewrite to the case of matrix multiplication on contiguous and statically shaped memrefs for now.

Before expanding further, we should harden the infrastructure for expressing custom ops with the structured ops abstraction.

PiperOrigin-RevId: 284566659
2019-12-09 09:14:39 -08:00
Nicolas Vasilache
1fa8c8070b Implement Linalg to loops lowering as a pattern
This CL rewrites the linalg ops to loops transformations as patterns that can be targeted directly from Tablegen. Reliance on OpFolder is removed and to cope with it we introduce local folding patterns that are applied greedily.

PiperOrigin-RevId: 282765550
2019-11-27 07:32:13 -08:00
River Riddle
b8ee563449 NFC: Remove unnecessarily guarded tablegen includes.
Support for including a file multiple times was added in tablegen, removing the need for these extra guards. This is because we already insert c/c++ style header guards within each of the specific .td files.

PiperOrigin-RevId: 282076728
2019-11-22 18:01:57 -08:00
Nicolas Vasilache
2c4985816f Split Linalg declarative patterns from specific test patterns - NFC
This will make it easier to scale out test patterns and build specific passes that do not interfere with independent testing.

PiperOrigin-RevId: 281736335
2019-11-21 06:40:17 -08:00