Commit Graph

5619 Commits

Author SHA1 Message Date
Markus Böck 1bf7921374 [mlir][LLVM] Add support for adding a garbage collector to a LLVM function
This patch simply adds an optional garbage collector attribute to LLVMFuncOp which maps 1:1 to the "gc" property of functions in LLVM.

Differential Revision: https://reviews.llvm.org/D119492
2022-02-11 10:23:51 +01:00
Mehdi Amini b055e6d313 Add a new interface method `getAsmBlockName()` on OpAsmOpInterface to control block names
This allows operations to control the block ids used by the printer in nested regions.

Reviewed By: Mogball

Differential Revision: https://reviews.llvm.org/D115849
2022-02-11 08:46:08 +00:00
gysit a3655de2c8 [mlir][OpDSL] Add support for basic rank polymorphism.
Previously, OpDSL did not support rank polymorphism, which required a separate implementation of linalg.fill. This revision extends OpDSL to support rank polymorphism for a limited class of operations that access only scalars and tensors of rank zero. At operation instantiation time, it scales these scalar computations to multi-dimensional pointwise computations by replacing the empty indexing maps with identity index maps. The revision does not change the DSL itself, instead it adapts the Python emitter and the YAML generator to generate different indexing maps and and iterators depending on the rank of the first output.

Additionally, the revision introduces a `linalg.fill_tensor` operation that in a future revision shall replace the current handwritten `linalg.fill` operation. `linalg.fill_tensor` is thus only temporarily available and will be renamed to `linalg.fill`.

Reviewed By: nicolasvasilache, stellaraccident

Differential Revision: https://reviews.llvm.org/D119003
2022-02-11 08:27:49 +00:00
Uday Bondhugula f2ff8a8e83 [MLIR] Add result status for normalizeAffineFor
Add result status for normalizeAffineFor utility.

Differential Revision: https://reviews.llvm.org/D119413
2022-02-11 11:29:52 +05:30
Thomas Raoux 5ab04bc068 [mlir][gpu] Add device side async copy operations
Add new operations to the gpu dialect to represent device side
asynchronous copies. This also add the lowering of those operations to
nvvm dialect.
Those ops are meant to be low level and map directly to llvm dialects
like nvvm or rocdl.

We can further add higher level of abstraction by building on top of
those operations.
This has been discuss here:
https://discourse.llvm.org/t/modeling-gpu-async-copy-ampere-feature/4924

Differential Revision: https://reviews.llvm.org/D119191
2022-02-10 17:25:59 -08:00
River Riddle faf42264e5 [PDLL] Add support for user defined constraint and rewrite functions
These functions allow for defining pattern fragments usable within the `match` and `rewrite` sections of a pattern. The main structure of Constraints and Rewrites functions are the same, and are similar to functions in other languages; they contain a signature (i.e. name, argument list, result list) and a body:

```pdll
// Constraint that takes a value as an input, and produces a value:
Constraint Cst(arg: Value) -> Value { ... }

// Constraint that returns multiple values:
Constraint Cst() -> (result1: Value, result2: ValueRange);
```

When returning multiple results, each result can be optionally be named (the result of a Constraint/Rewrite in the case of multiple results is a tuple).

These body of a Constraint/Rewrite functions can be specified in several ways:

* Externally
In this case we are importing an external function (registered by the user outside of PDLL):

```pdll
Constraint Foo(op: Op);
Rewrite Bar();
```

* In PDLL (using PDLL constructs)
In this case, the body is defined using PDLL constructs:

```pdll
Rewrite BuildFooOp() {
  // The result type of the Rewrite is inferred from the return.
  return op<my_dialect.foo>;
}
// Constraints/Rewrites can also implement a lambda/expression
// body for simple one line bodies.
Rewrite BuildFooOp() => op<my_dialect.foo>;
```

* In PDLL (using a native/C++ code block)
In this case the body is specified using a C++(or potentially other language at some point) code block. When building PDLL in AOT mode this will generate a native constraint/rewrite and register it with the PDL bytecode.

```pdll
Rewrite BuildFooOp() -> Op<my_dialect.foo> [{
  return rewriter.create<my_dialect::FooOp>(...);
}];
```

Differential Revision: https://reviews.llvm.org/D115836
2022-02-10 12:48:59 -08:00
Nirvedh ad9b5a4b8e [mlir][vector] Add pattern to drop lead unit dim for Contraction Op
If the result operand has a unit leading dim it is removed from all operands.

Reviewed By: ThomasRaoux

Differential Revision: https://reviews.llvm.org/D119206
2022-02-10 09:51:07 -08:00
Matthias Springer 9b5a3d14b2 [mlir][vector] Add helper that builds a scalar reduction according to CombiningKind
Differential Revision: https://reviews.llvm.org/D119433
2022-02-10 22:35:43 +09:00
Groverkss 4807587cf2 [MLIR][Presburger] Factor out space information to PresburgerSpace
This patch factors out space information from IntegerPolyhedron, PresburgerSet
and PWMAFunction to PresburgerSpace and its extension with local variables,
PresburgerLocalSpace.

Generally any new data structure additions in Presburger library will require
space information. This patch removes the need to duplicate the space
information.

Reviewed By: arjunp

Differential Revision: https://reviews.llvm.org/D119280
2022-02-10 18:24:40 +05:30
Matthias Springer fe0bf7d469 [mlir][vector][NFC] Use CombiningKindAttr instead of StringAttr
This makes the op consistent with other ops in vector dialect.

Differential Revision: https://reviews.llvm.org/D119343
2022-02-10 19:13:29 +09:00
Uday Bondhugula 8d12bf4ac1 [MLIR][NFC] Move expandAffineMap/Expr out to Affine utils
Move expandAffineMap and expandAffineApplyExpr out to AffineUtils. This
is a useful method. The child revision uses it. NFC.

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D119401
2022-02-10 09:56:26 +05:30
Mathieu Fehr cf4f97c812 [mlir] Add classes to define new TypeIDs at runtime
TypeIDAllocator enables the allocation of new TypeIDs at runtime,
that are unique during the lifetime of the allocator.

NonMovableTypeIDOwner is a class used to define a new TypeID for each instance
of a class, using the instance address. This class cannot be copied or moved.

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D104534
2022-02-09 23:24:49 +01:00
Rainer Orth d2215e79ac [mlir][sparse] Rename index_t to index_type again
While testing LLVM 14.0.0 rc1 on Solaris, I ran into a compile failure:

                   from /var/llvm/llvm-14.0.0-rc1/rc1/llvm-project/mlir/lib/ExecutionEngine/SparseTensorUtils.cpp:22:
  /usr/include/sys/types.h:103:16: error: conflicting declaration ‘typedef short int index_t’
    103 | typedef short  index_t;
        |                ^~~~~~~
  In file included from
/var/llvm/llvm-14.0.0-rc1/rc1/llvm-project/mlir/lib/ExecutionEngine/SparseTensorUtils.cpp:17:
  /var/llvm/llvm-14.0.0-rc1/rc1/llvm-project/mlir/include/mlir/ExecutionEngine/SparseTensorUtils.h:26:7:
note: previous declaration as ‘using index_t = uint64_t’
     26 | using index_t = uint64_t;
        |       ^~~~~~~

The same issue had already occured in the past and fixed in D72619
<https://reviews.llvm.org/D72619>.  More detailed explanation can also be
found there.

Tested on `amd64-pc-solaris2.11` and `sparcv9-solaris2.11`.

Differential Revision: https://reviews.llvm.org/D119323
2022-02-09 21:59:52 +01:00
Matthias Springer 69f7647158 [mlir][GPU] Add ShuffleOp builder for constant offset/width
Differential Revision: https://reviews.llvm.org/D119345
2022-02-10 02:55:44 +09:00
Alexander Belyaev c962038914 [mlir][nfc] Expose linalg tiling helpers.
Differential Revision: https://reviews.llvm.org/D119330
2022-02-09 15:26:06 +01:00
Matthias Springer 585a8a321c [mlir][bufferize] OpOperands can have multiple aliasing OpResults
This makes getAliasingOpResult symmetric to getAliasingOpOperand. The previous implementation was confusing for users and implemented in such a way only because there are currently no bufferizable ops that have multiple aliasing OpResults.

Differential Revision: https://reviews.llvm.org/D119259
2022-02-09 20:58:45 +09:00
Matthias Springer f30ec8f627 [mlir][linalg][bufferize][NFC] Allow passing custom BufferizationOptions to pass
Differential Revision: https://reviews.llvm.org/D118891
2022-02-09 19:15:31 +09:00
Matthias Springer cdb7675c26 [mlir][bufferize][NFC] Make PostAnalysisSteps a function
They used to be classes with a virtual `run` function. This was inconvenient because post analysis steps are stored in BufferizationOptions. Because of this design choice, BufferizationOptions were not copyable.

Differential Revision: https://reviews.llvm.org/D119258
2022-02-09 18:56:06 +09:00
Mogball 07486395d2 [mlir][ods] Optional Attribute or Type Parameters
Implements optional attribute or type parameters, including support for such parameters in the assembly format `struct` directive. Also implements optional groups.

Depends on D117971

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D118208
2022-02-08 20:09:44 +00:00
Arjun P 1096fcff7d [MLIR][Presburger] Support computing volumes via hyperrectangular overapproximation
Add support for computing an overapproximation of the number of integer points
in a polyhedron. The returned result is actually the number of integer points
one gets by computing the "rational shadow" obtained by projecting out the
local IDs, finding the minimal axis-parallel hyperrectangular approximation
of the shadow, and returning the number of integer points in that. This does
not currently support symbols.

Reviewed By: Groverkss

Differential Revision: https://reviews.llvm.org/D119228
2022-02-08 21:06:49 +05:30
Arjun P 738c738b44 [MLIR][Presburger] Simplex::computeIntegerBounds: support unbounded directions by returning Optionals 2022-02-08 20:57:18 +05:30
Alex Zinenko 68784267b1 [mlir] Move constBuidlerCall from to ArrayAttrBase
This makes it applicable to both ArrayAttr and its typed subclasses instead of
only the latter. There is no good reason why ArrayAttr shouldn't be
const-buildable while its typed subclasses are, this was likely just an
omission.

Depends On D119113

Reviewed By: rriddle, nicolasvasilache

Differential Revision: https://reviews.llvm.org/D119114
2022-02-08 09:31:11 +01:00
River Riddle 7889ff7f00 [mlir] Finish removing FunctionPass
FunctionPass has been deprecated in favor of OperationPass<FuncOp>
for a few weeks, and this commit finished the deprecation with deletion.
The only difference between the two is that FunctionPass filters out function
declarations. When updating references to FunctionPass, ensure that
the pass either can handle declarations or explicitly add in filtering.

See https://llvm.discourse.group/t/functionpass-deprecated-in-favor-of-operationpass-funcop

Differential Revision: https://reviews.llvm.org/D118735
2022-02-07 19:04:52 -08:00
River Riddle 2418cd92c0 [mlir] Update uses of `parser`/`printer` ODS op field to `hasCustomAssemblyFormat`
The parser/printer fields are deprecated and in the process of being removed.
2022-02-07 19:03:58 -08:00
River Riddle 60cac0c081 [mlir][NFC] Remove deprecated/old build/fold/parser utilities from OpDefinition
These have generally been replaced by better ODS functionality, and do not
need to be explicitly provided anymore.

Differential Revision: https://reviews.llvm.org/D119065
2022-02-07 19:03:58 -08:00
River Riddle 3c69bc4d6e [mlir][NFC] Remove a few op builders that simply swap parameter order
Differential Revision: https://reviews.llvm.org/D119093
2022-02-07 19:03:57 -08:00
River Riddle d7f0083dca [mlir:ODS] Deprecate Op parser/printer fields in favor of a new hasCustomAssemblyFormat field
Currently if an operation wants a C++ implemented parser/printer, it specifies inline
code blocks. This is quite problematic for various reasons, e.g. it requires defining
C++ inside of Tablegen which is discouraged when possible, but mainly because
nearly all usages simply forward to static functions (e.g. `static void parseSomeOp(...)`)
with users devising their own standards for how these are defined.

This commit adds support for a `hasCustomAssemblyFormat` bit field that specifies if
a C++ parser/printer is needed, and when set to 1 declares the parse/print methods for
operations to override. For migration purposes, the existing behavior is untouched. Upstream
usages will be replaced in a followup to keep this patch focused on the new implementation.

Differential Revision: https://reviews.llvm.org/D119054
2022-02-07 19:03:57 -08:00
Arjun P d5a2944219 [MLIR][Presburger] Add support for piece-wise multi-affine functions
Add the class MultiAffineFunction which represents functions whose domain is an
IntegerPolyhedron and which produce an output given by a tuple of affine
expressions in the IntegerPolyhedron's ids.

Also add support for piece-wise MultiAffineFunctions, which are defined on a
union of IntegerPolyhedrons, and may have different output affine expressions
on each IntegerPolyhedron. Thus the function is affine on each individual
IntegerPolyhedron piece in the domain.

This is part of a series of patches leading up to parametric integer programming.

Depends on D118778.

Reviewed By: Groverkss

Differential Revision: https://reviews.llvm.org/D118779
2022-02-08 00:43:59 +05:30
Matthias Springer 9aa74347d5 [mlir][SCF] Further simplify affine maps during `for-loop-canonicalization`
* Implement `FlatAffineConstraints::getConstantBound(EQ)`.
* Inject a simpler constraint for loops that have at most 1 iteration.
* Taking into account constant EQ bounds of FlatAffineConstraint dims/symbols during canonicalization of the resulting affine map in `canonicalizeMinMaxOp`.

Differential Revision: https://reviews.llvm.org/D119153
2022-02-08 02:40:08 +09:00
Nikita Popov c45a99f36b [MatrixBuilder] Require explicit element type in CreateColumnMajorLoad()
This makes the method compatible with opaque pointers.
2022-02-07 16:57:33 +01:00
Nikita Popov 4d30a245c9 [mlir] Remove MatrixBuilder template argument
I dropped this argument in cdc0573f75,
but did not adjust mlir. (Or rather I did, but I modified a generated
file ... oops)
2022-02-07 16:52:10 +01:00
Benjamin Kramer 6635c12ada [mlir] Use SmallBitVector instead of SmallDenseSet for AffineMap::compressSymbols
This is both more efficient and more ergonomic to use, as inverting a
bit vector is trivial while inverting a set is annoying.

Sadly this leaks into a bunch of APIs downstream, so adapt them as well.

This would be NFC, but there is an ordering dependency in MemRefOps's
computeMemRefRankReductionMask. This is now deterministic, previously it
was dependent on SmallDenseSet's unspecified iteration order.

Differential Revision: https://reviews.llvm.org/D119076
2022-02-07 00:21:44 +01:00
River Riddle ace01605e0 [mlir] Split out a new ControlFlow dialect from Standard
This dialect is intended to model lower level/branch based control-flow constructs. The initial set
of operations are: AssertOp, BranchOp, CondBranchOp, SwitchOp; all split out from the current
standard dialect.

See https://discourse.llvm.org/t/standard-dialect-the-final-chapter/6061

Differential Revision: https://reviews.llvm.org/D118966
2022-02-06 14:51:16 -08:00
Arjun P 8a98c3e07f [MLIR][Presburger] MaybeLocalRepr: add explicit bool() for convenience
This also slightly simplifies some code.

Reviewed By: Groverkss

Differential Revision: https://reviews.llvm.org/D118790
2022-02-05 19:33:01 +05:30
Groverkss 2845ed29d4 [MLIR][Presburger][NFC] Use getters for IntegerPolyhedron members
This patch makes IntegerPolyhedron and derived classes use of getters to access
IntegerPolyhedron space information (`numIds, numDims, numSymbols`) instead of
directly accessing them.

This patch makes it easier to change the underlying implementation of the way
identifiers are stored, making it easier to extend/modify existing implementation.

Reviewed By: arjunp

Differential Revision: https://reviews.llvm.org/D118888
2022-02-05 18:08:15 +05:30
River Riddle c64655c78c [mlir:NFC] Move BaseOpWithOffsetSizesAndStrides out of OpBase.td
This is not a general construct, and shouldn't have been defined in OpBase.
This moves a copy to both MemRefOps+TensorOps, which are the only
users.
2022-02-04 14:31:59 -08:00
Lei Zhang 9dd4c2dcb6 [mlir][vector] Add constant folder for vector.shuffle ops
Reviewed By: ThomasRaoux

Differential Revision: https://reviews.llvm.org/D119032
2022-02-04 16:59:32 -05:00
wren romano 4998b1a6cd [mlir][sparse] Updating sparse-compiler pipeline for python usage
Explicitly nests passes for FuncOp, adds more options to the sparse-compiler pipeline, and updates python integration tests.  This should be sufficient to close https://github.com/llvm/llvm-project/issues/51751

Reviewed By: aartbik

Differential Revision: https://reviews.llvm.org/D118658
2022-02-04 11:39:48 -08:00
gysit b5ea288d13 [mlir][linalg] Let tile and fuse fail for tile sizes zero.
Adapt `tileConsumerAndFuseProducers` to return failure if the generated tile loop nest is empty since all tile sizes are zero. Additionally, fix `LinalgTileAndFuseTensorOpsPattern` to return success if the pattern applied successfully.

Reviewed By: mravishankar

Differential Revision: https://reviews.llvm.org/D118878
2022-02-04 19:19:21 +00:00
Prashant Kumar 37bad565bf Revert "[MLIR][Presburger] Use `SmallVector` instead of `std::vector` in `getLocalRepr`"
This reverts commit 3cc5447728.
SmallVector inside SmallVector are not optimized.

Reviewed By: arjunp

Differential Revision: https://reviews.llvm.org/D119005
2022-02-04 23:24:08 +05:30
Jacques Pienaar 88c525235b [mlir] Add pass to privatize symbols unless excluded.
Simple pass that changes all symbols to private unless symbol is excluded (and
in which case there is no change to symbol's visibility).

Differential Revision: https://reviews.llvm.org/D118752
2022-02-03 20:20:54 -08:00
Eugene Zhulenev 0557c6a797 [mlir] Keep sorted vector of registered operation names for efficient lookup
I see a lot of array sorting in stack traces of our compiler, canonicalizer traverses this list every time it builds a pattern set, and it gets expensive very quickly.

Reviewed By: rriddle, mehdi_amini

Differential Revision: https://reviews.llvm.org/D118937
2022-02-03 14:19:34 -08:00
Benjamin Kramer 309b48ca5e [mlir][vector] Sink StandardOps include to its user in VectorUtils 2022-02-03 12:34:41 +01:00
River Riddle 8e123ca65f [mlir:Standard] Remove support for creating a `unit` ConstantOp
This is completely unused upstream, and does not really have well defined semantics
on what this is supposed to do/how this fits into the ecosystem. Given that, as part of
splitting up the standard dialect it's best to just remove this behavior, instead of try
to awkwardly fit it somewhere upstream. Downstream users are encouraged to
define their own operations that clearly can define the semantics of this.

This also uncovered several lingering uses of ConstantOp that weren't
updated to use arith::ConstantOp, and worked during conversions because
the constant was removed/converted into something else before
verification.

See https://llvm.discourse.group/t/standard-dialect-the-final-chapter/ for more discussion.

Differential Revision: https://reviews.llvm.org/D118654
2022-02-02 14:45:12 -08:00
River Riddle ead1107257 [mlir] Move StandardOps/Utils to Arithmetic and sever a bunch of dependencies on Standard
The Utils.cpp file in StandardOps essentially just contains utilities for interacting with arithmetic
operations, and at this point makes more sense as a utility file for the arithemtic dialect.

Differential Revision: https://reviews.llvm.org/D118280
2022-02-02 14:45:12 -08:00
River Riddle dec8af701f [mlir] Move SelectOp from Standard to Arithmetic
This is part of splitting up the standard dialect. See https://llvm.discourse.group/t/standard-dialect-the-final-chapter/ for discussion.

Differential Revision: https://reviews.llvm.org/D118648
2022-02-02 14:45:12 -08:00
River Riddle 6a8ba3186e [mlir] Split std.splat into tensor.splat and vector.splat
This is part of the larger effort to split the standard dialect. This will also allow for pruning some
additional dependencies on Standard (done in a followup).

Differential Revision: https://reviews.llvm.org/D118202
2022-02-02 14:45:12 -08:00
River Riddle 1be88f5ab1 [mlir][NFC] Update remaining dialect operations to use `hasVerifier` instead of `verifier`
The verifier field is deprecated, and slated for removal.

Differential Revision: https://reviews.llvm.org/D118829
2022-02-02 13:34:31 -08:00
River Riddle 0d86e53e18 [mlir][NFC] Update PDL operations to use `hasVerifier` instead of `verifier`
The verifier field is deprecated, and slated for removal.

Differential Revision: https://reviews.llvm.org/D118828
2022-02-02 13:34:31 -08:00
River Riddle 094ede6d20 [mlir][NFC] Update GPU/SCF operations to use `hasVerifier` instead of `verifier`
The verifier field is deprecated, and slated for removal.

Differential Revision: https://reviews.llvm.org/D118827
2022-02-02 13:34:31 -08:00