Lei Zhang [Wed, 10 Apr 2019 15:00:34 +0000 (08:00 -0700)]
Remove checks guaranteed to be true by the type
This addresses the compiler wraning of "comparison of unsigned expression
>= 0 is always true [-Wtype-limits]".
--
PiperOrigin-RevId:
242868703
Lei Zhang [Wed, 10 Apr 2019 15:00:20 +0000 (08:00 -0700)]
Add parentheses in various asserts to group predicates
This addresses the "suggest parentheses around ‘&&’ within ‘||’
[-Wparentheses]" compiler warnings.
--
PiperOrigin-RevId:
242868670
Lei Zhang [Wed, 10 Apr 2019 15:00:05 +0000 (08:00 -0700)]
Use hexadecimal constants instead of binary constants
This addresses the "binary constants are a C++14 feature or GCC
extension" compiler warnings.
--
PiperOrigin-RevId:
242868639
Stephan Herhut [Wed, 10 Apr 2019 09:27:30 +0000 (02:27 -0700)]
Add conversion of StandardOps and, or and xor to LLVM dialect.
--
PiperOrigin-RevId:
242831203
Andy Davis [Tue, 9 Apr 2019 19:21:28 +0000 (12:21 -0700)]
Factor code to compute dependence components out of loop fusion pass, and into a reusable utility function (NFC).
--
PiperOrigin-RevId:
242716259
Amit Sabne [Tue, 9 Apr 2019 16:17:40 +0000 (09:17 -0700)]
Fix typos in LoopFusion
--
PiperOrigin-RevId:
242679298
Nicolas Vasilache [Tue, 9 Apr 2019 08:24:35 +0000 (01:24 -0700)]
Start a Linalg doc
--
PiperOrigin-RevId:
242622278
Mehdi Amini [Tue, 9 Apr 2019 07:19:40 +0000 (00:19 -0700)]
Expose `setupTargetTriple` as a public static method on ExecutionEngine
This allows client to be able to reuse the same logic to setup a module
for the ExecutionEngine without instanciating one. One use case is running
the optimization pipeline but not JIT-ing.
--
PiperOrigin-RevId:
242614380
Mehdi Amini [Tue, 9 Apr 2019 06:24:25 +0000 (23:24 -0700)]
Fix Toy cmake build: add missing includes
--
PiperOrigin-RevId:
242609231
Mehdi Amini [Tue, 9 Apr 2019 06:00:49 +0000 (23:00 -0700)]
Toy tutorial Chapter 5: Lowering to Linalg and LLVM
--
PiperOrigin-RevId:
242606796
Mehdi Amini [Tue, 9 Apr 2019 05:37:37 +0000 (22:37 -0700)]
Automated rollback of changelist
242546977.
PiperOrigin-RevId:
242604949
Mehdi Amini [Tue, 9 Apr 2019 02:21:06 +0000 (19:21 -0700)]
Use c++14 for building with CMake
This is getting rid of some warnings, and C++14 is supposed to be
the default soon anyway.
--
PiperOrigin-RevId:
242587219
Lei Zhang [Mon, 8 Apr 2019 22:14:59 +0000 (15:14 -0700)]
[TableGen] Make sure op in pattern has the same number of arguments as definition
When an op in the source pattern specifies more arguments than its definition, we
will have out-of-bound query for op arguments from the definition. That will cause
crashes. This change fixes it.
--
PiperOrigin-RevId:
242548415
Nicolas Vasilache [Mon, 8 Apr 2019 22:06:34 +0000 (15:06 -0700)]
De-templatize TensorContractionBase (Linalg example/tutorial)
TensorContractionBase has become too unwieldy with all the CRTP manipulation once less trivial transformations are implemented.
This CL drops CRTP for inheritance and uses the same name comparison trick to figure out what to cast into.
As a byproduct, all the -inl.h files disappear.
To maintain the separation between directories, a LINALG_STEP variable is introduced
--
PiperOrigin-RevId:
242546977
Ashwin Murthy [Mon, 8 Apr 2019 21:32:39 +0000 (14:32 -0700)]
Add TabelGen support to logically AND a list of attribute constraints.
This is the AllOf version for AttrConstraint and allows specifying the combined constraint during pattern match.
--
PiperOrigin-RevId:
242540243
Nicolas Vasilache [Mon, 8 Apr 2019 13:47:06 +0000 (06:47 -0700)]
Add CMakeLists rules for Linalg
--
PiperOrigin-RevId:
242454319
Stephan Herhut [Mon, 8 Apr 2019 12:53:59 +0000 (05:53 -0700)]
Add xor bitwise operation to StandardOps.
This adds parsing, printing and some folding/canonicalization.
Also extends rewriting of subi %0, %0 to handle vectors and tensors.
--
PiperOrigin-RevId:
242448164
Nicolas Vasilache [Mon, 8 Apr 2019 12:07:01 +0000 (05:07 -0700)]
Fix build for the Linalg example dialect with MacOS
--
PiperOrigin-RevId:
242443831
Alex Zinenko [Mon, 8 Apr 2019 10:34:11 +0000 (03:34 -0700)]
Example Linalg3: manually register the Linalg dialect
This dialect does not have a global constructor and has to be registered
manually in `main`. Also fix the way it is exercised in the test.
--
PiperOrigin-RevId:
242434886
Alex Zinenko [Mon, 8 Apr 2019 10:11:12 +0000 (03:11 -0700)]
Change initialization syntax for ScopedContext in examples
For some reason, the OSS build on macOS was not happy with the initialization
syntax and was attempting to call a copy constructor. Hotfix it to use a
different syntax pending further investigation.
--
PiperOrigin-RevId:
242432634
Stephan Herhut [Mon, 8 Apr 2019 07:00:46 +0000 (00:00 -0700)]
Add and and or bitwise operations to StandardOps.
This adds parsing, printing and some folding/canonicalization.
--
PiperOrigin-RevId:
242409840
Mehdi Amini [Mon, 8 Apr 2019 06:30:58 +0000 (23:30 -0700)]
Fix bug in Toy tutorial where IR emission stopped after any `print`
--
PiperOrigin-RevId:
242407970
Mehdi Amini [Mon, 8 Apr 2019 00:11:02 +0000 (17:11 -0700)]
Introduce std.varargs attribute to mark variadic arguments functions
This is only teaching the LLVM converter to propagate the attribute onto
the function type. MLIR will not recognize this arguments, so it would only
be useful when calling for example `printf` with the same arguments across
a module. Since varargs is part of the ABI lowering, this is not NFC.
--
PiperOrigin-RevId:
242382427
Mehdi Amini [Sun, 7 Apr 2019 21:34:31 +0000 (14:34 -0700)]
Do not mark llvm.return, llvm.br, llvm.cond_br operations as having no side effects.
The canonicalizer is taking advantage of this to kill them.
--
PiperOrigin-RevId:
242374166
Mehdi Amini [Sun, 7 Apr 2019 20:12:48 +0000 (13:12 -0700)]
Fix Linalg3 lowering to use the floating point element type matching the view
It used to be hardcoded to f32, but Toy tutorial is using f64.
--
PiperOrigin-RevId:
242370172
Mehdi Amini [Sun, 7 Apr 2019 12:42:21 +0000 (05:42 -0700)]
Add support for f64 type conversion for Linalg dialect to LLVM lowering
--
PiperOrigin-RevId:
242345259
Tatiana Shpeisman [Sun, 7 Apr 2019 02:49:38 +0000 (19:49 -0700)]
Fix cond_br example.
PiperOrigin-RevId:
242314071
Tatiana Shpeisman [Sun, 7 Apr 2019 02:39:53 +0000 (19:39 -0700)]
Documentation fix - use '_' instead of '.' in the type alias example.
PiperOrigin-RevId:
242313674
Tatiana Shpeisman [Sun, 7 Apr 2019 02:31:19 +0000 (19:31 -0700)]
Documentation fix - complex type is a standard type
PiperOrigin-RevId:
242313280
Mehdi Amini [Sat, 6 Apr 2019 17:53:00 +0000 (10:53 -0700)]
Filter DialectConversion pattern to be considered only if the root kind matches the operation.
This is the same logic as the PatterRewriter.
--
PiperOrigin-RevId:
242287241
Mehdi Amini [Sat, 6 Apr 2019 17:27:56 +0000 (10:27 -0700)]
Provide a default implementation for matching: most DialectOpConversion implementations are unconditionally matching.
This will help removing boilerplate.
--
PiperOrigin-RevId:
242285885
Chris Lattner [Sat, 6 Apr 2019 06:56:49 +0000 (23:56 -0700)]
Change the asmprinter to use pretty syntax for dialect types when it can,
making the IR dumps much nicer.
This is part 2/3 of the path to making dialect types more nice. Part 3/3 will
slightly generalize the set of characters allowed in pretty types and make it
more principled.
--
PiperOrigin-RevId:
242249955
Chris Lattner [Sat, 6 Apr 2019 02:36:42 +0000 (19:36 -0700)]
Introduce support for parsing pretty dialect types, currently with a very
restricted grammar. This will make certain common types much easier to read.
This is part tensorflow/mlir#1 of 2, which allows us to accept the new syntax. Part 2 will
change the asmprinter to automatically use it when appropriate, which will
require updating a bunch of tests.
This is motivated by the EuroLLVM tutorial and cleaning up the LLVM dialect aesthetics a bit more.
--
PiperOrigin-RevId:
242234821
Andy Davis [Sat, 6 Apr 2019 01:34:49 +0000 (18:34 -0700)]
Remove/replace TPU-specific instruction references and memref spaces in LangRef.md
Remove undesigned/unimplemented operations: reshape and view.
Add new LangRefDeletions.md file in /experimental to store things removed from public LangRef.md
PiperOrigin-RevId:
242230200
River Riddle [Fri, 5 Apr 2019 23:11:24 +0000 (16:11 -0700)]
Add iterator support to DenseIntElementsAttr and DenseFPElementsAttr. This avoids the need to load all of the values from a DenseElementsAttr inorder to process them.
--
PiperOrigin-RevId:
242212741
Ashwin Murthy [Fri, 5 Apr 2019 22:51:47 +0000 (15:51 -0700)]
Add attr constraint support to constrain IntegerArray attribute values at a specified index.
--
PiperOrigin-RevId:
242209394
Nicolas Vasilache [Fri, 5 Apr 2019 20:20:05 +0000 (13:20 -0700)]
Post commit cleanups to the Linalg dialect
--
PiperOrigin-RevId:
242181687
River Riddle [Fri, 5 Apr 2019 19:24:03 +0000 (12:24 -0700)]
Add new utilities for RTTI Operation casting: dyn_cast_or_null and isa_nonnull
* dyn_cast_or_null
- This will first check if the operation is null before trying to 'dyn_cast':
Value *v = ...;
if (auto forOp = dyn_cast_or_null<AffineForOp>(v->getDefiningOp()))
...
* isa_nonnull
- This will first check if the pointer is null before trying to 'isa':
Value *v = ...;
if (isa_nonnull<AffineForOp>(v->getDefiningOp());
...
--
PiperOrigin-RevId:
242171343
Lei Zhang [Fri, 5 Apr 2019 19:19:22 +0000 (12:19 -0700)]
Add methods for building array attributes in Builder
I32/I64/F32/F64/Str array attributes are commonly used in ops. It helps
to have handy methods for them.
--
PiperOrigin-RevId:
242170569
River Riddle [Fri, 5 Apr 2019 15:19:42 +0000 (08:19 -0700)]
Tidy up the links in the documents and fix any broken ones.
--
PiperOrigin-RevId:
242127863
Alex Zinenko [Fri, 5 Apr 2019 15:18:13 +0000 (08:18 -0700)]
Linalg3 example: implement JIT-compilation and execution
Use MLIR's ExecutionEngine to demonstrate how one can implement a simple
JIT-compiler and executor after fully lowering the Linalg dialect to the LLVM
IR dialect, using the direct conversion (not going through standard
loads/stores).
--
PiperOrigin-RevId:
242127690
Alex Zinenko [Fri, 5 Apr 2019 15:15:41 +0000 (08:15 -0700)]
ExecutionEngine: allow for running MLIR passes during JIT-compilation
The existing implementation of the ExecutionEngine unconditionally runs a list
of "default" MLIR passes on the module upon creation. These passes include,
among others, dialect conversions from affine to standard and from standard to
LLVM IR dialects. In some cases, these conversions might have been performed
before ExecutionEngine is created. More advanced use cases may be performing
additional transformations that the "default" passes will conflict with.
Provide an overload for ExecutionEngine::create that takes a PassManager
configured with the passes to run on the module. If it is not provided, do not
run any passes. The engine will not be created if the input module, after the
pass manager, has any other dialect than the LLVM IR dialect.
--
PiperOrigin-RevId:
242127393
Mehdi Amini [Fri, 5 Apr 2019 14:39:48 +0000 (07:39 -0700)]
Fix CMake build: reflect that a new file Utils/ConstantFoldUtils.cpp was added
--
PiperOrigin-RevId:
242123122
Mehdi Amini [Fri, 5 Apr 2019 14:30:16 +0000 (07:30 -0700)]
Add mentions of requirements before the build instructions
The `Getting Started` instructions requires git, ninja, and a working C++ host toolchain.
--
PiperOrigin-RevId:
242121953
Lei Zhang [Fri, 5 Apr 2019 14:22:28 +0000 (07:22 -0700)]
[TableGen] Support array attribute subclasses and constraints
To support automatically constraint composition of ArrayAttr, a new
predicate combiner, Concat, is introduced. It prepends a prefix and
appends a postfix to a child predicate's final predicate string.
--
PiperOrigin-RevId:
242121186
Mehdi Amini [Fri, 5 Apr 2019 10:52:59 +0000 (03:52 -0700)]
Fix CMake build: account for renamed files and add missing include on MacOS
--
PiperOrigin-RevId:
242101364
Nicolas Vasilache [Fri, 5 Apr 2019 02:57:42 +0000 (19:57 -0700)]
Linalg portion of the tutorial - part 4
This CL adds declarative tiling support in the linalg dialect by providing:
1. loop tiling on linalg ops by simply calling into mlir::tile
2. view tiling on linalg ops by:
a. computing the subview between for each tile dimension based on the loop tile size and the mapping of loops to operand ranges.
b. declaring that the tiled form of a tensorcontraction is the same tensorcontraction on subviews, which essentially gives us a recursive form.
Point 2.b is potentially subject to change in the future.
--
PiperOrigin-RevId:
242058658
River Riddle [Fri, 5 Apr 2019 01:34:41 +0000 (18:34 -0700)]
NFC: Fix a few typos in the tutorials and one in the comment of FunctionAttr::dropFunctionReference.
--
PiperOrigin-RevId:
242050934
Mehdi Amini [Fri, 5 Apr 2019 01:31:31 +0000 (18:31 -0700)]
Add Chapter 4 for the Toy tutorial: shape inference, function specialization, and basic combines
--
PiperOrigin-RevId:
242050514
Mehdi Amini [Fri, 5 Apr 2019 01:22:17 +0000 (18:22 -0700)]
Add mention that we don't (yet) accept contributions in the README
--
PiperOrigin-RevId:
242049527
Nicolas Vasilache [Fri, 5 Apr 2019 00:54:41 +0000 (17:54 -0700)]
Linalg portion of the tutorial - part 3-3
This CL adds the last bit to convert from linalg.LoadOp and linalg.StoreOp to the affine dialect, as well as a unit test to exercise the conversion.
--
PiperOrigin-RevId:
242045826
River Riddle [Thu, 4 Apr 2019 23:24:10 +0000 (16:24 -0700)]
NFC: Replace usages of iterator_range<operand_iterator> with operand_range.
--
PiperOrigin-RevId:
242031201
River Riddle [Thu, 4 Apr 2019 23:01:45 +0000 (16:01 -0700)]
Introduce a new class, MultiOperandTraitBase, to deduplicate the operand accessors for traits with multiple operands.
As part of this cleanup, NOperands<0>::Impl and NOperands<1>::Impl are typedef'd to ZeroOperands and OneOperand respectively.
--
PiperOrigin-RevId:
242027189
River Riddle [Thu, 4 Apr 2019 22:30:34 +0000 (15:30 -0700)]
NFC: Fix erroneous use of 'OpaqueType' with 'Type' when setting the ToyTypeKind, as well as a few mistakes in Chapter 2 of the Toy tutorial.
--
PiperOrigin-RevId:
242021477
MLIR Team [Thu, 4 Apr 2019 22:19:17 +0000 (15:19 -0700)]
Create a LoopUtil function to return perfectly nested loop set
--
PiperOrigin-RevId:
242019230
River Riddle [Thu, 4 Apr 2019 21:42:18 +0000 (14:42 -0700)]
Iterate on the operations to fold in TestConstantFold in reverse to remove the need for ConstantFoldHelper to have a flag for insertion at the head of the entry block. This also fixes an asan bug in TestConstantFold due to the iteration order of operations and ConstantFoldHelper's constant insertion placement.
Note: This now means that we cannot fold chains of operations, i.e. where constant foldable operations feed into each other. Given that this is a testing pass solely for constant folding, this isn't really something that we want anyways. Constant fold tests should be simple and direct, with more advanced folding/feeding being tested with the canonicalizer.
--
PiperOrigin-RevId:
242011744
River Riddle [Thu, 4 Apr 2019 20:25:29 +0000 (13:25 -0700)]
Fix a few warnings for missing parentheses around '||' and extra semicolons.
--
PiperOrigin-RevId:
241994767
Lei Zhang [Thu, 4 Apr 2019 18:40:57 +0000 (11:40 -0700)]
Deduplicate constant folding logic in ConstantFold and GreedyPatternRewriteDriver
There are two places containing constant folding logic right now: the ConstantFold
pass and the GreedyPatternRewriteDriver. The logic was not shared and started to
drift apart. We were testing constant folding logic using the ConstantFold pass,
but lagged behind the GreedyPatternRewriteDriver, where we really want the constant
folding to happen.
This CL pulled the logic into utility functions and classes for sharing between
these two places. A new ConstantFoldHelper class is created to help constant fold
and de-duplication.
Also, renamed the ConstantFold pass to TestConstantFold to make it clear that it is
intended for testing purpose.
--
PiperOrigin-RevId:
241971681
River Riddle [Thu, 4 Apr 2019 18:13:02 +0000 (11:13 -0700)]
Remove the non-postorder walk functions from Function/Block/Instruction and rename walkPostOrder to walk.
--
PiperOrigin-RevId:
241965239
Andy Davis [Thu, 4 Apr 2019 17:42:45 +0000 (10:42 -0700)]
Fix bug in LoopTiling where creation of tile-space loop upper bound did not handle symbol operands correctly.
--
PiperOrigin-RevId:
241958502
Andy Davis [Thu, 4 Apr 2019 17:35:51 +0000 (10:35 -0700)]
Adds dependence analysis support for iteration domains with local variables (enables dependence analysis of loops with non-unit step).
--
PiperOrigin-RevId:
241957023
Lei Zhang [Thu, 4 Apr 2019 16:25:38 +0000 (09:25 -0700)]
[TableGen] Enforce constraints on attributes
Previously, attribute constraints are basically unused: we set true for almost
anything. This CL refactors common attribute kinds and sets constraints on
them properly. And fixed verification failures found by this change.
A noticeable one is that certain TF ops' attributes are required to be 64-bit
integer, but the corresponding TFLite ops expect 32-bit integer attributes.
Added bitwidth converters to handle this difference.
--
PiperOrigin-RevId:
241944008
Lei Zhang [Thu, 4 Apr 2019 12:44:58 +0000 (05:44 -0700)]
[TableGen] Add PatternSymbolResolver for resolving symbols bound in patterns
We can bind symbols to op arguments/results in source pattern and op results in
result pattern. Previously resolving these symbols is scattered across
RewriterGen.cpp. This CL aggregated them into a `PatternSymbolResolver` class.
While we are here, this CL also cleans up tests for patterns to make them more
focused. Specifically, one-op-one-result.td is superseded by pattern.td;
pattern-tAttr.td is simplified; pattern-bound-symbol.td is added for the change
in this CL.
--
PiperOrigin-RevId:
241913973
Lei Zhang [Thu, 4 Apr 2019 11:29:58 +0000 (04:29 -0700)]
[TableGen] Rework verifier generation and error messages
Previously we bundle the existence check and the MLIR attribute kind check
in one call. Further constraints (like element bitwidth) have to be split
into following checks. That is not a nice separation given that we have more
checks for constraints. Instead, this CL changes to generate a local variable
for every attribute, check its existence first, then check the constraints.
Creating a local variable for each attribute also avoids querying it multiple
times using the raw getAttr() API. This is a win for both performance the
readability of the generated code.
This CL also changed the error message to be more greppable by delimiting
the error message from constraints with boilerplate part with colon.
--
PiperOrigin-RevId:
241906132
Alex Zinenko [Thu, 4 Apr 2019 08:43:21 +0000 (01:43 -0700)]
Example Linalg3: support Load/Store conversion from Linalg to LLVM IR dialect
Load and Store Linalg operations are converter to their LLVM IR counterparts
preceded by a sequence of operations that recover the effective address of the
accessed element. The address is computed given the subscripts and the view
descriptor as
base_pointer + base_offset + SUM_i subscript_i * stride_i.
Manual testing shows that the resulting LLVM IR for the matrix multiplication
example can be compiled and executed, producing correct results.
--
PiperOrigin-RevId:
241889003
Mehdi Amini [Thu, 4 Apr 2019 02:16:32 +0000 (19:16 -0700)]
Fix Toy Ch3 testing with CMake
Mainly a missing dependency caused the tests to pass if one already built
the repo, but not from a clean (or incremental) build.
--
PiperOrigin-RevId:
241852313
Mehdi Amini [Thu, 4 Apr 2019 01:45:01 +0000 (18:45 -0700)]
Chapter 3 for Toy tutorial: introduction of a dialect
--
PiperOrigin-RevId:
241849162
Dan Zheng [Thu, 4 Apr 2019 01:27:23 +0000 (18:27 -0700)]
[README] Fix links, minor edits.
Fix links without breaking g3doc.
Minor stylistic edits.
--
PiperOrigin-RevId:
241846985
Dan Zheng [Thu, 4 Apr 2019 00:50:41 +0000 (17:50 -0700)]
[README] Minor edits.
Minor stylistic edits.
Use standard "TensorFlow" spelling.
--
PiperOrigin-RevId:
241842272
Stella Laurenzo [Thu, 4 Apr 2019 00:43:00 +0000 (17:43 -0700)]
Add CMakeLists.txt for Quantization and FxpMathOps dialects (and misc fixes to build with OSS setup).
Tested:
cmake -G Ninja ../llvm/ -DLLVM_BUILD_EXAMPLES=ON
ninja check-mlir
--
PiperOrigin-RevId:
241841296
Mehdi Amini [Wed, 3 Apr 2019 23:49:01 +0000 (16:49 -0700)]
Rename UnknownType to OpaqueType (NFC)
This came up in a review of the tutorial, it was suggested that "opaque" is more
descriptive than "unknown" here.
--
PiperOrigin-RevId:
241832927
Mehdi Amini [Wed, 3 Apr 2019 23:38:53 +0000 (16:38 -0700)]
Move the top-level `tutorial` as `Linalg` nested in the examples folder
--
PiperOrigin-RevId:
241831176
Stella Laurenzo [Wed, 3 Apr 2019 23:07:37 +0000 (16:07 -0700)]
Split the Quantization dialect.
- Retains Quantization types and predicates.
- Retains utilities and example (testable) passes/ops.
- Retains unit tests for example passes/ops.
- Moves fixed point ops (and corresponding real ops) to FxpMathOps.
- Moves real -> fixed point pass to FxpMathOps.
- Sever the dependency on the TF dialect from Quantization. These dialects should now be open-sourcable.
--
PiperOrigin-RevId:
241825598
Feng Liu [Wed, 3 Apr 2019 22:19:56 +0000 (15:19 -0700)]
Fix the alignment issue in the DenseElementsAttr buffer allocation
Currently, we only make the initial address aligned with 64-bit address but
allocate the buffer with the real size. This can cause issue when we extract
the value by the `readBits` method, which needs to read the memory in the
granularity of APINT_WORD_SIZE. In this CL, we rounded the allocation size to
the multiplies of APINT_WORD_SIZE to fix the issue.
--
PiperOrigin-RevId:
241816656
Rob Suderman [Wed, 3 Apr 2019 21:30:17 +0000 (14:30 -0700)]
Added memref to OpBase.td as specific memref types should be supported by default.
--
PiperOrigin-RevId:
241806461
Smit Hinsu [Wed, 3 Apr 2019 21:05:23 +0000 (14:05 -0700)]
Remove links to internal google docs, updating them to point to GitHub.
PiperOrigin-RevId:
241801638
Chris Lattner [Wed, 3 Apr 2019 21:00:30 +0000 (14:00 -0700)]
Remove links to internal google docs, updating them to point to GitHub.
--
PiperOrigin-RevId:
241800478
Stella Laurenzo [Wed, 3 Apr 2019 19:40:30 +0000 (12:40 -0700)]
Refactor Quantization.md to separate TFLite native quantization scheme from the more experimental, generalized scheme.
PiperOrigin-RevId:
241785572
Nicolas Vasilache [Wed, 3 Apr 2019 19:33:01 +0000 (12:33 -0700)]
Linalg portion of the tutorial - part 3-2
This CL adds support for lowering tensor contractions to loops declaratively.
This is done thanks to two properties of the such operations:
1. the definition of an AffineMap getLoopsToOperandRangesMap for each op which maps iteration space dimensions to ranges of the view operands, in their order of occurrence;
2. the definition of a scalar implementation for each op which creates the computation inside the loops given enclosing parallel and reduction loops,
All the other properties are derived in a generic fashion from these 2 properties and a few analyses.
A lowerToLoops transformation is added as well as a test that exercises it.
--
PiperOrigin-RevId:
241783992
Lei Zhang [Wed, 3 Apr 2019 19:29:14 +0000 (12:29 -0700)]
[TableGen] Allow additional result patterns not directly used for replacement
This CL looses the requirement that all result patterns in a rewrite rule must
replace a result of the root op in the source pattern. Now only the last N
result pattern-generated ops are used to replace a N-result source op.
This allows to generate additional ops to aid building up final ops used to
replace the source op.
--
PiperOrigin-RevId:
241783192
Stella Laurenzo [Wed, 3 Apr 2019 18:16:32 +0000 (11:16 -0700)]
Initial release of the Quantization dialect
Includes a draft of documentation for the quantization setup.
Given how many comments such docs have garnered in the past, I've biased towards a lightly edited first-draft so that people can argue about terminology, approach and structure without having spent too much time on it.
Note that the sections under "Uniform quantization" were cribbed nearly verbatim from internal documentation that Daniel wrote.
PiperOrigin-RevId:
241768668
Lei Zhang [Wed, 3 Apr 2019 17:48:07 +0000 (10:48 -0700)]
[TableGen] Fix convertFromStorage for OptionalAttr
OptionalAttr is just wrapping around the actual attribute; so it should just use
the actual attribute's `convertFromStorage` to read the value and wrap it around
with `Optional<>` to return. Previously it was mandating how the actual attribute
reads the value with `{0}.getValue()`.
--
PiperOrigin-RevId:
241762355
Alex Zinenko [Wed, 3 Apr 2019 17:38:47 +0000 (10:38 -0700)]
Tutorial Linalg1: implement conversion to the LLVM Dialect
Implement conversion from the Linalg dialect to the LLVM dialect using a simple
set of DialectOpConverters and by plugging them into the dialect conversion
infrastructure. View and Range Linalg types are converted into descriptors
that store the dynamic values in an LLVM aggregate type, similarly to memrefs.
Slice operations create new descriptors based on the original descriptors and
thus remove the constraint on ViewTypes not being acceptable as function
arguments.
--
PiperOrigin-RevId:
241760189
Mehdi Amini [Wed, 3 Apr 2019 16:40:08 +0000 (09:40 -0700)]
Add mention of the TensorFlow Code of Conduct in the Readme
PiperOrigin-RevId:
241748009
Mehdi Amini [Wed, 3 Apr 2019 16:29:52 +0000 (09:29 -0700)]
Add missing source file in CMakeLists.txt
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PiperOrigin-RevId:
241746122
Lei Zhang [Wed, 3 Apr 2019 16:29:25 +0000 (09:29 -0700)]
[TableGen] Remove asserts for attributes in aggregate builders
Attributes can have default values or be optional. Checking the validity of
attributes in aggregate builder should consider that. And to be accurate,
we should check all required attributes are indeed provided in the list.
This is actually duplicating the work done by verifier. Checking the validity
of attributes should be the responsiblity of verifiers. This CL removes
the assertion for attributes in aggregate builders for the above reason.
(Assertions for operands/results are still kept since they are trivial.)
Also added more tests for aggregate builders.
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PiperOrigin-RevId:
241746059
Mehdi Amini [Wed, 3 Apr 2019 16:20:26 +0000 (09:20 -0700)]
Fix CMake build
Some files were not built anymore internally but still referenced
from CMake. Delete them and unreference them in the CMake files.
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PiperOrigin-RevId:
241744718
Mehdi Amini [Wed, 3 Apr 2019 15:28:29 +0000 (08:28 -0700)]
Update Readme to mention that the TensorFlow specific will be upstreamed later
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PiperOrigin-RevId:
241735845
Alex Zinenko [Wed, 3 Apr 2019 13:11:03 +0000 (06:11 -0700)]
Drop MLIREmitter-based version of the EDSC
This version has been deprecated and can now be removed completely since the
last remaining user (Python bindings) migrated to declarative builders.
Several functions in lib/EDSC/Types.cpp construct core IR objects for the C
bindings. Move these functions into lib/EDSC/CoreAPIs.cpp until we decide
where they should live.
This completes the migration from the delayed-construction EDSC to Declarative
Builders.
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PiperOrigin-RevId:
241716729
Alex Zinenko [Wed, 3 Apr 2019 12:43:44 +0000 (05:43 -0700)]
Python bindings: drop MLIREmitter and related functionality
This completes the transition of Python bindings to use the declarative
builders infrastructure instead of the now-deprecated EDSC emitter
infrastructure. The relevant unit tests have been replicated using the new
functionality and the remaining end-to-end compilation tests have been updated
accordingly. The latter show an improvement in brevity and readability.
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PiperOrigin-RevId:
241713489
Alex Zinenko [Wed, 3 Apr 2019 12:39:02 +0000 (05:39 -0700)]
Python bindings: support __floordiv__ for index types
The original reimplementation of EDSC as declarative builders and the
subsequent rework of Python bindings forbade to use the (true) division
operator for values of the index types without providing an alternative. Index
types only support floor and ceil division through affine maps. Expose this to
Python bindings through a `__floordiv__` function on `ValueHandle`s.
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PiperOrigin-RevId:
241713093
Mehdi Amini [Wed, 3 Apr 2019 08:47:13 +0000 (01:47 -0700)]
Remove section of the README copied from the Rationale document, it does not fit here.
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PiperOrigin-RevId:
241687723
Nicolas Vasilache [Wed, 3 Apr 2019 07:46:40 +0000 (00:46 -0700)]
Fix test that fails on non-determinism in LowerVectorTransfers
This CL fixes the non-determinism across compilers in an edsc::select expression used in LowerVectorTransfers. This is achieved by factoring the expression out of the function call to ensure a deterministic order of evaluation.
Since the expression is now factored out, fewer IR is generated and the test is updated accordingly.
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PiperOrigin-RevId:
241679962
Mehdi Amini [Wed, 3 Apr 2019 01:14:56 +0000 (18:14 -0700)]
Fix path for the examples in Toy tutorial Ch1
PiperOrigin-RevId:
241643625
Mehdi Amini [Wed, 3 Apr 2019 01:07:26 +0000 (18:07 -0700)]
Add link to the Toy tutorial in the Readme
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PiperOrigin-RevId:
241642739
River Riddle [Tue, 2 Apr 2019 22:50:51 +0000 (15:50 -0700)]
Add fake-use for variable in LLVMDialect.cpp to fix opt build.
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PiperOrigin-RevId:
241620442
Mehdi Amini [Tue, 2 Apr 2019 22:41:22 +0000 (15:41 -0700)]
Fix minor typo (triggered a GCC warning, NFC)
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PiperOrigin-RevId:
241618796
Alex Zinenko [Tue, 2 Apr 2019 22:33:54 +0000 (15:33 -0700)]
Introduce custom format for the LLVM IR Dialect
Historically, the LLVM IR dialect has been using the generic form of MLIR
operation syntax. It is verbose and often redundant. Introduce the custom
printing and parsing for all existing operations in the LLVM IR dialect.
Update the relevant documentation and tests.
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PiperOrigin-RevId:
241617393
Mehdi Amini [Tue, 2 Apr 2019 22:15:20 +0000 (15:15 -0700)]
Add -DLLVM_BUILD_EXAMPLES to the mlir build instruction: this enables the tutorial examples
Seems like a better default for getting started.
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PiperOrigin-RevId:
241614043
Mehdi Amini [Tue, 2 Apr 2019 22:13:26 +0000 (15:13 -0700)]
Fix Toy tutorial gcc 7 build (NFC)
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PiperOrigin-RevId:
241613710