Rewrites a tensor::UnPackOp into a sequence of rank-reduced. More...
#include "mlir/Dialect/Linalg/Transforms/Transforms.h"
Inheritance diagram for mlir::linalg::DecomposeOuterUnitDimsUnPackOpPattern:
Public Member Functions | |
| LogicalResult | matchAndRewrite (tensor::UnPackOp unpackOp, PatternRewriter &rewriter) const override |
| Public Member Functions inherited from mlir::OpRewritePattern< tensor::UnPackOp > | |
| OpRewritePattern (MLIRContext *context, PatternBenefit benefit=1, ArrayRef< StringRef > generatedNames={}) | |
| Patterns must specify the root operation name they match against, and can also specify the benefit of the pattern matching and a list of generated ops. More... | |
| Public Member Functions inherited from mlir::detail::OpOrInterfaceRewritePatternBase< SourceOp > | |
| void | rewrite (Operation *op, PatternRewriter &rewriter) const final |
| Wrappers around the RewritePattern methods that pass the derived op type. More... | |
| LogicalResult | match (Operation *op) const final |
| Attempt to match against code rooted at the specified operation, which is the same operation code as getRootKind(). More... | |
| LogicalResult | matchAndRewrite (Operation *op, PatternRewriter &rewriter) const final |
| Attempt to match against code rooted at the specified operation, which is the same operation code as getRootKind(). More... | |
| virtual void | rewrite (SourceOp op, PatternRewriter &rewriter) const |
| Rewrite and Match methods that operate on the SourceOp type. More... | |
| virtual LogicalResult | match (SourceOp op) const |
| virtual LogicalResult | matchAndRewrite (SourceOp op, PatternRewriter &rewriter) const |
| Public Member Functions inherited from mlir::RewritePattern | |
| virtual | ~RewritePattern ()=default |
| Public Member Functions inherited from mlir::Pattern | |
| ArrayRef< OperationName > | getGeneratedOps () const |
| Return a list of operations that may be generated when rewriting an operation instance with this pattern. More... | |
| std::optional< OperationName > | getRootKind () const |
| Return the root node that this pattern matches. More... | |
| std::optional< TypeID > | getRootInterfaceID () const |
| Return the interface ID used to match the root operation of this pattern. More... | |
| std::optional< TypeID > | getRootTraitID () const |
| Return the trait ID used to match the root operation of this pattern. More... | |
| PatternBenefit | getBenefit () const |
| Return the benefit (the inverse of "cost") of matching this pattern. More... | |
| bool | hasBoundedRewriteRecursion () const |
| Returns true if this pattern is known to result in recursive application, i.e. More... | |
| MLIRContext * | getContext () const |
| Return the MLIRContext used to create this pattern. More... | |
| StringRef | getDebugName () const |
| Return a readable name for this pattern. More... | |
| void | setDebugName (StringRef name) |
| Set the human readable debug name used for this pattern. More... | |
| ArrayRef< StringRef > | getDebugLabels () const |
| Return the set of debug labels attached to this pattern. More... | |
| void | addDebugLabels (ArrayRef< StringRef > labels) |
| Add the provided debug labels to this pattern. More... | |
| void | addDebugLabels (StringRef label) |
Additional Inherited Members | |
| Static Public Member Functions inherited from mlir::RewritePattern | |
| template<typename T , typename... Args> | |
| static std::unique_ptr< T > | create (Args &&...args) |
This method provides a convenient interface for creating and initializing derived rewrite patterns of the given type T. More... | |
| Protected Member Functions inherited from mlir::RewritePattern | |
| Pattern (StringRef rootName, PatternBenefit benefit, MLIRContext *context, ArrayRef< StringRef > generatedNames={}) | |
Inherit the base constructors from Pattern. More... | |
| Pattern (MatchAnyOpTypeTag tag, PatternBenefit benefit, MLIRContext *context, ArrayRef< StringRef > generatedNames={}) | |
Inherit the base constructors from Pattern. More... | |
| Pattern (MatchInterfaceOpTypeTag tag, TypeID interfaceID, PatternBenefit benefit, MLIRContext *context, ArrayRef< StringRef > generatedNames={}) | |
Inherit the base constructors from Pattern. More... | |
| Pattern (MatchTraitOpTypeTag tag, TypeID traitID, PatternBenefit benefit, MLIRContext *context, ArrayRef< StringRef > generatedNames={}) | |
Inherit the base constructors from Pattern. More... | |
| Protected Member Functions inherited from mlir::Pattern | |
| Pattern (StringRef rootName, PatternBenefit benefit, MLIRContext *context, ArrayRef< StringRef > generatedNames={}) | |
| Construct a pattern with a certain benefit that matches the operation with the given root name. More... | |
| Pattern (MatchAnyOpTypeTag tag, PatternBenefit benefit, MLIRContext *context, ArrayRef< StringRef > generatedNames={}) | |
| Construct a pattern that may match any operation type. More... | |
| Pattern (MatchInterfaceOpTypeTag tag, TypeID interfaceID, PatternBenefit benefit, MLIRContext *context, ArrayRef< StringRef > generatedNames={}) | |
Construct a pattern that may match any operation that implements the interface defined by the provided interfaceID. More... | |
| Pattern (MatchTraitOpTypeTag tag, TypeID traitID, PatternBenefit benefit, MLIRContext *context, ArrayRef< StringRef > generatedNames={}) | |
Construct a pattern that may match any operation that implements the trait defined by the provided traitID. More... | |
| void | setHasBoundedRewriteRecursion (bool hasBoundedRecursionArg=true) |
| Set the flag detailing if this pattern has bounded rewrite recursion or not. More... | |
Detailed Description
Rewrites a tensor::UnPackOp into a sequence of rank-reduced.
- tensor::ExtractSliceOp + linalg::TransposeOp + tensor::InsertSliceOp
Requires that all the outer dims of the input tensor::PackOp are 1.
Before:
%packed = tensor.unpack %input
inner_dims_pos = [1, 0]
inner_tiles = [2, 8]
into %output : tensor<1x1x2x8xf32> -> tensor<5x1xf32>
After:
// Rank-reduced extract to obtain the tile
%slice = tensor.extract_slice %arg0[0, 0, 0, 0] [1, 1, 2, 8] [1, 1, 1, 1]
: tensor<1x1x2x8xf32> to tensor<2x8xf32>
// EmptyOp + TransposeOp
%init = tensor.empty() : tensor<8x2xf32>
%transposed = linalg.transpose
ins(%extracted_slice : tensor<2x8xf32>)
outs(%0 : tensor<8x2xf32>) permutation = [1, 0]
// Extract a slice matching the specified output size
%result = tensor.extract_slice %transposed[0, 0] [5, 1] [1, 1]
: tensor<8x2xf32> to tensor<5x1xf32>
Definition at line 1587 of file Transforms.h.
Member Function Documentation
◆ matchAndRewrite()
|
override |
Definition at line 1244 of file Transforms.cpp.
References mlir::OpBuilder::create(), mlir::get(), mlir::Builder::getIndexAttr(), mlir::tensor::getMixedSize(), getPackUnpackRankReducedPerm(), mlir::invertPermutationVector(), mlir::RewriterBase::notifyMatchFailure(), and mlir::RewriterBase::replaceOp().
The documentation for this struct was generated from the following files:
- include/mlir/Dialect/Linalg/Transforms/Transforms.h
- lib/Dialect/Linalg/Transforms/Transforms.cpp
