Commit Graph

6340 Commits

Author SHA1 Message Date
thomasraoux 36aac53b36 [mlir][linalg] Extend drop unit dim pattern to all cases of reduction
Even with all parallel loops reading the output value is still allowed so we
don't have to handle reduction loops differently.

Differential Revision: https://reviews.llvm.org/D109851
2021-09-17 10:09:57 -07:00
thomasraoux 416679615d [mlir] Linalg hoisting should ignore uses outside the loop
Differential Revision: https://reviews.llvm.org/D109859
2021-09-17 10:06:57 -07:00
thomasraoux a123e3c48b [mlir] Fix potential crash in hoistRedundantVectorTransfers
Differential Revision: https://reviews.llvm.org/D107856
2021-09-17 10:05:20 -07:00
Tobias Gysi 90b7817e03 [mlir][linalg] Add helper to update IndexOps after tiling (NFC).
Add the addTileLoopIvsToIndexOpResults method to shift the IndexOp results after tiling.

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D109761
2021-09-17 15:17:33 +00:00
Arjun P 58719f6153 [MLIR] PresbugerSet: slightly expand documentation 2021-09-17 18:04:46 +05:30
Arjun P 44db07f11f [MLIR] AffineStructures: support removing a range of constraints at once
Reviewed By: Groverkss, grosser

Differential Revision: https://reviews.llvm.org/D109892
2021-09-17 16:27:48 +05:30
Arjun P 6607bd9fd8 [MLIR] AffineStructures::removeIdRange: support specifying a range within an IdKind
Reviewed By: Groverkss, grosser

Differential Revision: https://reviews.llvm.org/D109896
2021-09-17 16:25:26 +05:30
Arjun P f263ea1571 [MLIR] Matrix: support resizing horizontally
Reviewed By: Groverkss

Differential Revision: https://reviews.llvm.org/D109897
2021-09-17 16:22:31 +05:30
MaheshRavishankar 04a66f8d2b Fixing vector add pattern that incorrectly returns success.
The pattern is returning success even if it does no work leading to pattern application running up to the max iteration count and failing.

Reviewed By: nicolasvasilache, mravishankar

Differential Revision: https://reviews.llvm.org/D109791
2021-09-16 14:48:09 -07:00
Rob Suderman 8662a2f208 [mlir][tosa] Relax ranked constraint on quantization builder
TosaOp defintion had an artificial constraint that the input/output types
needed to be ranked to invoke the quantization builder. This is correct as an
unranked tensor could still be quantized.

Reviewed By: NatashaKnk

Differential Revision: https://reviews.llvm.org/D109863
2021-09-16 11:43:47 -07:00
Aart Bik 860cbeb159 [mlir][sparse] add more asserts to sparse support lib
We are having issues running the integration test of the sparse compiler
on AArch64 (crashing in the lib). This revision adds more assertions.

Reviewed By: jsetoain

Differential Revision: https://reviews.llvm.org/D109861
2021-09-16 10:13:29 -07:00
Nicolas Vasilache ee2e414dde [mlir][Linalg] Cleanup doc and improve logging and readability in ComprehensiveBufferize.cpp - NFC 2021-09-16 16:41:47 +00:00
Aart Bik b1d44e5902 [mlir][sparse] add affine subscripts to sparse compilation pass
This enables the sparsification of more kernels, such as convolutions
where there is a x(i+j) subscript. It also enables more tensor invariants
such as x(1) or other affine subscripts such as x(i+1). Currently, we
reject sparsity altogether for such tensors. Despite this restriction,
however, we can already handle a lot more kernels with compound subscripts
for dense access (viz. convolution with dense input and sparse filter).
Some unit tests and an integration test demonstrate new capability.

Reviewed By: bixia

Differential Revision: https://reviews.llvm.org/D109783
2021-09-15 20:28:04 -07:00
Mogball cb8c30d35d [DRR] Explicit Return Types in Rewrites
Adds a new rewrite directive returnType that can be added at the end of an op's
argument list to explicitly specify return types.

```
(OpX $v0, $v1, (returnType "$_builder.getI32Type()"))
```

Pass in a bound value to copy its return type, or pass a native code call to
dynamically create new types.

```
(OpX $v0, $v1, (returnType $v0, (NativeCodeCall<"..."> $v1)))
```

Reviewed By: jpienaar

Differential Revision: https://reviews.llvm.org/D109472
2021-09-15 14:25:29 -07:00
Rob Suderman 1ac2d195ec [mlir][linalg] Add canonicalizers for depthwise conv
There are two main versions of depthwise conv depending whether the multiplier
is 1 or not. In cases where m == 1 we should use the version without the
multiplier channel as it can perform greater optimization.

Add lowering for the quantized/float versions to have a multiplier of one.

Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D108959
2021-09-15 14:09:15 -07:00
Simon Camphausen 1b79efdc72 [mlir] Fix printing of EmitC attrs/types with escape characters
Attributes and types were not escaped when printing.

Reviewed By: jpienaar, marbre

Differential Revision: https://reviews.llvm.org/D109143
2021-09-15 18:15:38 +00:00
Nicolas Vasilache 96ec0ff2b7 [mlir][Linalg] Revisit insertion points in comprehensive bufferization.
This revision fixes a corner case that could appear due to incorrect insertion point behavior in comprehensive bufferization.

Differential Revision: https://reviews.llvm.org/D109830
2021-09-15 18:11:38 +00:00
Mehdi Amini 13237c3b1e Add llvm_unreachable after fully covered switch (NFC)
This fixes a compiler warning for some version of GCC.
2021-09-15 17:53:05 +00:00
Uday Bondhugula f68939d3d9 [MLIR] Tighten type constraint on memref.global op def
Tighten the def of memref.global op to use the right kind of TypeAttr
(of MemRefType).

Differential Revision: https://reviews.llvm.org/D109822
2021-09-15 22:41:03 +05:30
Nicolas Vasilache 6fe77b1051 [mlir][Linalg] Fail comprehensive bufferization if a memref is returned.
Summary:

Reviewers:

Subscribers:

Differential revision: https://reviews.llvm.org/D109824
2021-09-15 15:11:17 +00:00
Nicolas Vasilache e3889b3059 [mlir][Linalg] Replace DenseSet by UnionFind in ComprehensiveBufferize - NFC
AliasInfo can now use union-find for a much more efficient implementation.
This brings no functional changes but large performance gains on more complex examples.

Differential Revision: https://reviews.llvm.org/D109819
2021-09-15 10:35:54 +00:00
Matthias Springer 934e2f695e [mlir][linalg] ComprehensiveBufferize: Do not copy InitTensorOp results
E.g.:

```
%2 = memref.alloc() {alignment = 128 : i64} : memref<256x256xf32>
%3 = memref.alloc() {alignment = 128 : i64} : memref<256x256xf32>

// ... (%3 is not written to)

linalg.copy(%3, %2) : memref<256x256xf32>, memref<256x256xf32>
vector.transfer_write %11, %2[%c0, %c0] {in_bounds = [true, true]} : vector<256x256xf32>, memref<256x256xf32>
```

Avoid copies of %3 if %3 came directly from an InitTensorOp.

Differential Revision: https://reviews.llvm.org/D109742
2021-09-15 17:28:04 +09:00
Mehdi Amini a32300a68f Make the --mlir-disable-threading command line option overrides the C++ API usage
This seems in-line with the intent and how we build tools around it.
Update the description for the flag accordingly.
Also use an injected thread pool in MLIROptMain, now we will create
threads up-front and reuse them across split buffers.

Differential Revision: https://reviews.llvm.org/D109802
2021-09-15 03:20:48 +00:00
cwz920716 500d4c45ba [MLIR] Use memref.copy ops in BufferResultsToOutParams pass.
Both copy/alloc ops are using memref dialect after this change.

Reviewed By: silvas, mehdi_amini

Differential Revision: https://reviews.llvm.org/D109480
2021-09-15 02:59:30 +00:00
Matthias Springer 9adc0114bf [mlir][linalg] PadTensorOp vectorization: Avoid redundant FillOps
Do not generate FillOps when these would be entirely overwritten.

Differential Revision: https://reviews.llvm.org/D109741
2021-09-15 09:28:37 +09:00
Mehdi Amini 1a406cd5f2 Remove unused llvm/Support/Parallel.h from MLIR (NFC)
This header aren't needed anymore: MLIR is using a thread pool
injected in the context instead of a global one.
2021-09-14 23:30:42 +00:00
Sean Silva 8dca953dd3 [mlir] Apply py::module_local() to a few more classes.
Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D109776
2021-09-14 21:56:14 +00:00
Tobias Gysi 6091873651 [mli][linalg] Reuse getValueOrCreateConstantIndexOp method (NFC).
Use getValueOrCreateConstantIndexOp introduced by https://reviews.llvm.org/D109601 in multiple places in LinalgOps.cpp.

Reviewed By: nicolasvasilache, springerm

Differential Revision: https://reviews.llvm.org/D109756
2021-09-14 15:32:29 +00:00
Tobias Gysi 44a889778c [mlir][linalg] Fold ExtractSliceOps during tiling.
Add the makeComposedExtractSliceOp method that creates an ExtractSliceOp and folds chains of ExtractSliceOps by computing the sum of their offsets and by multiplying their strides.

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D109601
2021-09-14 11:43:52 +00:00
Uday Bondhugula a91cfd1990 [MLIR] Improve op parse error message for AtLeastNOperands trait
Improve parse error message for "at least N operands" op trait.

Differential Revision: https://reviews.llvm.org/D109747
2021-09-14 15:01:51 +05:30
Matthias Springer 62883459cd [mlir][linalg] makeTiledShape: No affine.min if tile size == 1
This improves codegen (more static type information) with `scalarize-dynamic-dims`.

Differential Revision: https://reviews.llvm.org/D109415
2021-09-14 10:48:20 +09:00
Matthias Springer fb1def9c66 [mlir][linalg] New tiling option: Scalarize dynamic dims
This tiling option scalarizes all dynamic dimensions, i.e., it tiles all dynamic dimensions by 1.

This option is useful for linalg ops with partly dynamic tensor dimensions. E.g., such ops can appear in the partial iteration after loop peeling. After scalarizing dynamic dims, those ops can be vectorized.

Differential Revision: https://reviews.llvm.org/D109268
2021-09-14 10:40:50 +09:00
Matthias Springer 8faf35c0a5 [mlir][linalg] Add scf.for loop peeling to codegen strategy
Only scf.for loops are supported at the moment. linalg.tiled_loop support will be added in a subsequent commit.

Only static tensor sizes are supported. Loops for dynamic tensor sizes can be peeled, but the generated code is not optimal due to a missing canonicalization pattern.

Differential Revision: https://reviews.llvm.org/D109043
2021-09-14 10:35:01 +09:00
Nicolas Vasilache 181d18ef53 [mlir][Linalg] Insert static buffers as high as possible during ComprehensiveBufferization.
This revision allows hoisting static alloc/dealloc pairs as high as possible during ComprehensiveBufferization.
This also aligns such allocated buffers to 128B by default.

This change exhibited some issues wrt insertion points and a missing copy that are also fixed in this revision; tests are updated accordingly.

Differential Revision: https://reviews.llvm.org/D109684
2021-09-13 15:59:03 +00:00
Simon Camphausen ec92f788f3 [mlir][emitc] Print signed integers properly
Previously negative integers were printed as large unsigned values.

Reviewed By: marbre

Differential Revision: https://reviews.llvm.org/D109690
2021-09-13 15:29:30 +00:00
Matthias Springer 7c9b6a3355 [mlir][linalg] ComprehensiveBufferize: Do not copy InitTensorOps
Do not copy InitTensorOps or casts thereof.

Differential Revision: https://reviews.llvm.org/D109656
2021-09-13 22:31:54 +09:00
Nicolas Vasilache b01d223faf [mlir][Linalg] Use reify for padded op shape derivation.
Previously, we would insert a DimOp and rely on later canonicalizations.
Unfortunately, reifyShape kind of rewrites are not canonicalizations anymore.
This introduces undesirable pass dependencies.

Instead, immediately reify the result shape and avoid the DimOp altogether.
This is akin to a local folding, which avoids introducing more reliance on `-resolve-shaped-type-result-dims` (similar to compositions of `affine.apply` by construction to avoid chains of size > 1).

It does not completely get rid of the reliance on the pass as the process is merely local: calling the pass may still be necessary for global effects. Indeed, one of the tests still requires the pass.

Differential Revision: https://reviews.llvm.org/D109571
2021-09-13 11:54:59 +00:00
Valentin Clement 57bf856011
[mlir] Add missing namespace to createInlinerPass
One of the createInlinerPass does not have the mlir:: namespace

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D109580
2021-09-13 11:58:27 +02:00
Mehdi Amini 7fb2394a4f Add sanity check in MLIR ODS to catch case where an arguments/results/regions/successors names overlap
This is making a tablegen crash with a more friendly error.

Differential Revision: https://reviews.llvm.org/D109474
2021-09-13 06:21:25 +00:00
Kiran Chandramohan 187d9f8cd9 [OpenMP][MLIR] Add a conversion pattern for the master op
The conversion pattern is particularly useful for conversion of
block arguments in the master op.

Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D109610
2021-09-12 10:13:40 +00:00
Rob Suderman b0532286fe [mlir][tosa] Add shape inference for tosa.while
Tosa.while shape inference requires repeatedly running shape inference across
the body of the loop until the types become static as we do not know the number
of iterations required by the loop body. Once the least specific arguments are
known they are propagated to both regions.

To determine the final end type, the least restrictive types are determined
from all yields.

Differential Revision: https://reviews.llvm.org/D108801
2021-09-10 13:11:53 -07:00
Alex Zinenko 61bc6aa5a7 [mlir] spelling and style changes in ReconcileUnrealizedCasts.cpp. NFC. 2021-09-10 14:09:29 +02:00
Stephan Herhut 5e6c170b3f [mlir][linalg] Fix bufferize pattern to allow unknown operations in body of generic
The original version of the bufferization pattern for linalg.generic would
manually clone operations within the region to the bufferized clone of the
operation. This triggers legality requirements on those operations in the
conversion infra. Instead, this now uses the rewriter to inline the region
instead, avoiding those legality requirements.

Differential Revision: https://reviews.llvm.org/D109581
2021-09-10 13:37:42 +02:00
Matthias Springer 0f3544d185 [mlir][scf] Loop peeling: Use scf.for for partial iteration
Generate an scf.for instead of an scf.if for the partial iteration. This is for consistency reasons: The peeling of linalg.tiled_loop also uses another loop for the partial iteration.

Note: Canonicalizations patterns may rewrite partial iterations to scf.if afterwards.

Differential Revision: https://reviews.llvm.org/D109568
2021-09-10 19:07:09 +09:00
Tobias Gysi 16488dc300 [mlir][linalg] Pass all operands to tile to the tile loop region builder (NFC).
Extend the signature of the tile loop nest region builder to take all operand values to use and not just the scf::For iterArgs. This change allows us to pass in all block arguments of TiledLoop and use them directly instead of replacing them after the loop generation.

Reviewed By: pifon2a

Differential Revision: https://reviews.llvm.org/D109569
2021-09-10 08:35:11 +00:00
Nicolas Vasilache 5f1a1af4bf [mlir][Linalg] Properly order extract_slice traversal in comprehensive bufferization
This revision fixes the traversal order of extract_slice during the inplace analysis.
It was previously thought that such ops could be analyzed at the very end.
This is unfortunately not true as the AliasInfo for dependents of these ops need to be updated.

This change allows the aliases introduced by the bufferization of extract_slice to be properly propagated.

Differential Revision: https://reviews.llvm.org/D109519
2021-09-10 07:10:06 +00:00
natashaknk d4d50e4710 [mlir][tosa] Add lowering for tosa.clz using scf::whileOp
Reviewed By: rsuderman

Differential Revision: https://reviews.llvm.org/D109540
2021-09-09 15:57:35 -07:00
Aart Bik 066d786ce0 [mlir][sparse] add folding to sparse_tensor.convert
folds conversion between identical types (with tests)

Reviewed By: ThomasRaoux

Differential Revision: https://reviews.llvm.org/D109545
2021-09-09 15:45:19 -07:00
Alexander Slepko 89837a0e1b Adding min(f/s/u) and max(f/s/u) cases for vector reduction
This PR adds missing AtomicRMWKind::min/max cases which we would like to use for min/max reduction loop vectorizations.

Reviewed By: aartbik

Differential Revision: https://reviews.llvm.org/D104881
2021-09-09 12:00:43 -07:00
Chris Lattner 735f46715d [APInt] Normalize naming on keep constructors / predicate methods.
This renames the primary methods for creating a zero value to `getZero`
instead of `getNullValue` and renames predicates like `isAllOnesValue`
to simply `isAllOnes`.  This achieves two things:

1) This starts standardizing predicates across the LLVM codebase,
   following (in this case) ConstantInt.  The word "Value" doesn't
   convey anything of merit, and is missing in some of the other things.

2) Calling an integer "null" doesn't make any sense.  The original sin
   here is mine and I've regretted it for years.  This moves us to calling
   it "zero" instead, which is correct!

APInt is widely used and I don't think anyone is keen to take massive source
breakage on anything so core, at least not all in one go.  As such, this
doesn't actually delete any entrypoints, it "soft deprecates" them with a
comment.

Included in this patch are changes to a bunch of the codebase, but there are
more.  We should normalize SelectionDAG and other APIs as well, which would
make the API change more mechanical.

Differential Revision: https://reviews.llvm.org/D109483
2021-09-09 09:50:24 -07:00