llvm-project/mlir/test/lib/Interfaces/TilingInterface/TestTilingInterfaceTransformOps.td
MaheshRavishankar c22352175e
[mlir][TilingInterface] Allow tile and fuse to work with ReductionTilingStrategy::PartialReductionOuterParallelStrategy. (#147593)
Since `scf::tileUsingSCF` is the core method used for tiling the root
operation within the `scf::tileConsumersAndFuseProducersUsingSCF`, the
latter can fuse into any tiled loop generated using `scf::tileUsingSCF`.
This patch adds a test for tiling a root operation using
`ReductionTilingStrategy::PartialReductionOuterParallelStrategy` and
fusing producers with it.

Since this strategy generates a rank-reducing extract slice
`tensor::replaceExtractSliceWithTiledProducer` which is the core method
used for the fusion was extended to handle the rank-reducing slices.

Also fix a small bug in the computation of the reduction induction
variable (which needs to use `floorDiv` instead of `ceilDiv`)

Signed-off-by: MaheshRavishankar <mahesh.ravishankar@gmail.com>
2025-07-09 08:50:01 -07:00

154 lines
6.5 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` `=` $mapping^)?
attr-dict `:` functional-type(operands, results)
}];
}
def TestTileAndFuseOuterParallelPartialReductionOp : Op<
Transform_Dialect, "test.tile_and_fuse_outer_parallel_partial_reduction",
[FunctionalStyleTransformOpTrait, MemoryEffectsOpInterface,
DeclareOpInterfaceMethods<TransformOpInterface>,
ReportTrackingListenerFailuresOpTrait]> {
let description = [{
Test operation to tile an operation using partial reduction with
outer parallel strategy, and to fuse its producers.
}];
let arguments = (ins TransformHandleTypeInterface:$root_op,
DefaultValuedAttr<I64ArrayAttr, "{}">:$reduction_dims,
DefaultValuedAttr<I64ArrayAttr, "{}">:$tile_sizes,
OptionalAttr<DeviceMappingArrayAttr>:$mapping);
let results = (outs TransformHandleTypeInterface:$tiled_ops,
Variadic<TransformHandleTypeInterface>:$loops);
let assemblyFormat = [{
$root_op (`reduction_dims` `=` $reduction_dims^)?
(`tile_sizes` `=` $tile_sizes^)? (`mapping` `=` $mapping^)?
attr-dict `:` functional-type(operands, results)
}];
}
#endif // TEST_TILINGINTERFACE_TRANSFORM_OPS