Files
clang-p2996/mlir/test/lib/Interfaces/TilingInterface/TestTilingInterfaceTransformOps.td
MaheshRavishankar c873e5f87d [mlir][TilingInterface] Handle multi operand consumer fusion. (#145193)
For consumer fusion cases of this form

```
%0:2 = scf.forall .. shared_outs(%arg0 = ..., %arg0 = ...) {

  tensor.parallel_insert_slice ... into %arg0
  tensor.parallel_insert_slice ... into %arg1
}
%1 = linalg.generic ... ins(%0#0, %0#1)
```

the current consumer fusion that handles one slice at a time cannot fuse
the consumer into the loop, since fusing along one slice will create and
SSA violation on the other use from the `scf.forall`. The solution is to
allow consumer fusion to allow considering multiple slices at once. This
PR changes the `TilingInterface` methods related to consumer fusion,
i.e.

- `getTiledImplementationFromOperandTile`
- `getIterationDomainFromOperandTile`

to allow fusion while considering multiple operands. It is upto the
`TilingInterface` implementation to return an error if a list of tiles
of the operands cannot result in a consistent implementation of the
tiled operation.

The Linalg operation implementation of `TilingInterface` has been
modified to account for these changes and allow cases where operand
tiles that can result in a consistent tiling implementation are handled.

---------

Signed-off-by: MaheshRavishankar <mahesh.ravishankar@gmail.com>
2025-06-25 11:54:38 -07:00

130 lines
5.4 KiB
TableGen

//===- TestTilingInterfaceTransformOps.td -----------------*- tablegen -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef TEST_TILINGINTERFACE_TRANSFORM_OPS
#define TEST_TILINGINTERFACE_TRANSFORM_OPS
include "mlir/Dialect/SCF/IR/DeviceMappingInterface.td"
include "mlir/Dialect/Transform/IR/TransformDialect.td"
include "mlir/Dialect/Transform/Interfaces/TransformInterfaces.td"
include "mlir/Dialect/Transform/IR/TransformTypes.td"
include "mlir/Interfaces/SideEffectInterfaces.td"
include "mlir/IR/OpBase.td"
// Those operations in this file are meant for testing the tiling interface
// transformations using scf operations. Over time these testing options
// might be useful transformations in their own right. Move these over
// as transform ops in the main repo (also find a proper place for them)
def TestFuseAndYieldOp : Op<Transform_Dialect, "test.fuse_and_yield",
[FunctionalStyleTransformOpTrait, MemoryEffectsOpInterface,
DeclareOpInterfaceMethods<TransformOpInterface>,
ReportTrackingListenerFailuresOpTrait]> {
let description = [{
Tiles the operations pointed to by the target handle, fuses their
producers greedily using the options provided as attributes.
It also yields some of the fused producers for testing.
On success returns the tiled operations as well as generated loops. Emits
a definite failure if tiling fails.
}];
let arguments =
(ins TransformHandleTypeInterface:$target,
DefaultValuedAttr<I64ArrayAttr, "{}">:$tile_sizes,
DefaultValuedAttr<I64ArrayAttr, "{}">:$tile_interchange,
DefaultValuedAttr<BoolAttr, "false">:$use_forall);
let results = (outs TransformHandleTypeInterface:$transfomed,
Variadic<TransformHandleTypeInterface>:$loops);
let assemblyFormat = [{
$target ($tile_sizes^)? (`interchange` $tile_interchange^)?
(`use_forall` $use_forall^)? attr-dict
`:` functional-type(operands, results)
}];
}
def TestFuseConsumerOp : Op<Transform_Dialect, "test.fuse_consumer",
[AttrSizedOperandSegments,
DeclareOpInterfaceMethods<TransformOpInterface>,
DeclareOpInterfaceMethods<MemoryEffectsOpInterface>,
ReportTrackingListenerFailuresOpTrait]> {
let description = [{
Fuses the consumer of the operation pointed to by the target handle
using the options provided as attributes.
}];
let arguments = (ins
Variadic<TransformHandleTypeInterface>:$targets,
Variadic<TransformHandleTypeInterface>:$loops,
DefaultValuedAttr<I32Attr, "1">:$num_consumer_to_fuse);
let results = (outs TransformHandleTypeInterface:$consumer,
TransformHandleTypeInterface:$fused_consumer);
let assemblyFormat = [{
$targets `in` `(` $loops `)`
(`num_consumer_to_fuse` `=` $num_consumer_to_fuse^)?
attr-dict `:` functional-type(operands, results)
}];
}
def TestTileUsingForallOp : Op<Transform_Dialect, "test.tile_using_forall",
[DeclareOpInterfaceMethods<TransformOpInterface>,
DeclareOpInterfaceMethods<MemoryEffectsOpInterface>,
ReportTrackingListenerFailuresOpTrait]> {
let description = [{
Test operation use to test tiling using TilingInterface and scf.forall for
the loop constructs. This is similar to
`transform.structured.tile_using_for`. Use of this operation is an
intermediate state and will be replaced in due course with either
`transform.structured.tile_using_for` or
`transform.structured.tile_using_forall`.
On success returns the tiled operations as well as generated loops. Emits
a definite failure if tiling fails.
}];
let arguments = (ins TransformHandleTypeInterface:$target,
DefaultValuedAttr<I64ArrayAttr, "{}">:$tile_sizes,
DefaultValuedOptionalAttr<I64ArrayAttr, "{}">:$interchange,
OptionalAttr<DeviceMappingArrayAttr>:$mapping);
let results = (outs TransformHandleTypeInterface:$tiled_op,
Variadic<TransformHandleTypeInterface>:$loops);
let assemblyFormat = [{
$target ($tile_sizes^)? (`interchange` `=` $interchange^)?
(`mapping` `=` $mapping^)?
attr-dict `:` functional-type(operands, results)
}];
}
def TestFuseUsingForallOp : Op<Transform_Dialect, "test.fuse_using_forall",
[DeclareOpInterfaceMethods<TransformOpInterface>,
DeclareOpInterfaceMethods<MemoryEffectsOpInterface>,
ReportTrackingListenerFailuresOpTrait]> {
let description = [{
Test operation to tile the operation pointed to by the target handle and
fuses their producers greedily using the options provided as attributes.
This operation uses scf.forall for the loop construct.
}];
let arguments = (ins TransformHandleTypeInterface:$root_op,
DefaultValuedAttr<I64ArrayAttr, "{}">:$tile_sizes,
DefaultValuedOptionalAttr<I64ArrayAttr, "{}">:$interchange,
OptionalAttr<DeviceMappingArrayAttr>:$mapping);
let results = (outs TransformHandleTypeInterface:$tiled_ops,
Variadic<TransformHandleTypeInterface>:$loops);
let assemblyFormat = [{
$root_op ($tile_sizes^)? (`interchange` $interchange^)?
(`mapping` `=` $mapping^)?
attr-dict `:` functional-type(operands, results)
}];
}
#endif // TEST_TILINGINTERFACE_TRANSFORM_OPS