The pass manager is moving towards being able to run on operations at arbitrary nesting. An operation may have both parent and child operations, and the AnalysisManager must be able to handle this generalization. The AnalysisManager class now contains generic 'getCachedParentAnalysis' and 'getChildAnalysis/getCachedChildAnalysis' functions to query analyses on parent/child operations. This removes the hard coded nesting relationship between Module/Function.
PiperOrigin-RevId: 266003636
Each basic block in SPIR-V must start with an OpLabel instruction.
We don't support control flow yet, so this CL just makes sure that
the entry block follows this rule and is valid.
PiperOrigin-RevId: 265718841
Use of std::isupper and std::islower need <cctype> header file. Fix
that and also fix the header of a file to match the file name.
PiperOrigin-RevId: 260816852
All non-argument attributes specified for an operation are treated as
decorations on the result value and (de)serialized using OpDecorate
instruction. An error is generated if an attribute is not an argument,
and the name doesn't correspond to a Decoration enum. Name of the
attributes that represent decoerations are to be the snake-case-ified
version of the Decoration name.
Add utility methods to convert to snake-case and camel-case.
PiperOrigin-RevId: 260792638
We are relying on serializer to construct positive cases to drive
the test for deserializer. This leaves negative cases untested.
This CL adds a basic test fixture for covering the negative
corner cases to enforce a more robust deserializer.
Refactored common SPIR-V building methods out of serializer to
share it with the deserialization test.
PiperOrigin-RevId: 260742733
As with Functions, Module will soon become an operation, which are value-typed. This eases the transition from Module to ModuleOp. A new class, OwningModuleRef is provided to allow for owning a reference to a Module, and will auto-delete the held module on destruction.
PiperOrigin-RevId: 256196193
Move the data members out of Function and into a new impl storage class 'FunctionStorage'. This allows for Function to become value typed, which will greatly simplify the transition of Function to FuncOp(given that FuncOp is also value typed).
PiperOrigin-RevId: 255983022
In ODS, right now we use StringAttrs to emulate enum attributes. It is
suboptimal if the op actually can and wants to store the enum as a
single integer value; we are paying extra cost on storing and comparing
the attribute value.
This CL introduces a new enum attribute subclass that are backed by
IntegerAttr. The downside with IntegerAttr-backed enum attributes is
that the assembly form now uses integer values, which is less obvious
than the StringAttr-backed ones. However, that can be remedied by
defining custom assembly form with the help of the conversion utility
functions generated via EnumsGen.
Choices are given to the dialect writers to decide which one to use for
their enum attributes.
PiperOrigin-RevId: 255935542
Some compilers find initializer list constructors from boolean literals
ambiguous between ArrayRef<bool> and ArrayRef<Attribute>. Call the
ArrayRef<bool> constructor explicitly to disambiguate.
PiperOrigin-RevId: 253224859
Enum attributes can be defined using `EnumAttr`, which requires all its cases
to be defined with `EnumAttrCase`. To facilitate the interaction between
`EnumAttr`s and their C++ consumers, add a new EnumsGen TableGen backend
to generate a few common utilities, including an enum class, `llvm::DenseMapInfo`
for the enum class, conversion functions from/to strings.
This is controlled via the `-gen-enum-decls` and `-gen-enum-defs` command-line
options of `mlir-tblgen`.
PiperOrigin-RevId: 252209623
Otherwise, GCC < 7 does not link in the dialect registration, fails to look up
the dialect in the context and cannot construct SDBM objects.
--
PiperOrigin-RevId: 249259758
MLIRContext does not have to be aware of the SDBM unique data structures
directly. Move the SDBM storage uniquer from MLIRContext to the SDBM dialect
instance. Expressions that previously required a context to be constructed now
require an instance of the dialect in order to access the uniquer. While they
could look up the dialect in the context, it would have introduced a rather
expensive lookup into each construction. Instead, the caller is expected to
obtain the dialect instance and cache it.
--
PiperOrigin-RevId: 249245199
We now have sufficient extensibility in dialects to move attribute components
such as SDBM out of the core IR into a dedicated dialect and make them
optional. Introduce an SDBM dialect and move the code. This is a mostly
non-functional change.
--
PiperOrigin-RevId: 249244802
A couple of warnings was produced when compiling this test due to comaprisons
with a signed literal. Used unsigned literals instead.
--
PiperOrigin-RevId: 249242970
Affine expressions are designed as components of an attribute and are unique'd
in the MLIRContext. When affine expressions were implemented, uniqu'ing
objects in a context required to modify MLIRContext implementation. This is no
longer the case as generic StorageUniquer has been introduced. Port the
AffineExpr construction to use the new infrastructure by introducing an
affineUniquer into the MLIRContext.
--
PiperOrigin-RevId: 249207539
SDBM has an output format representing the unterlying matrix and stripe
expressions. Move the SDBM tests from unit testing framework to
FileCheck-based tests, printing them to the standard output and using FileCheck
to test the output. Tests that check the API proper (e.g. that SDBM
expressions have a specific subtype) and that rely on non-syntatic properties
(equality of the set of constraints) are not ported.
--
PiperOrigin-RevId: 249006055
Provide an "unsafe" version of the overloaded arithmetic operators for SDBM
expressions. These operators expect the operands to be of the right SDBM
expression subtype and assert if they are not. They also perform simple
folding operations as well as some semantically correct operations that
construct an SDBM expression of a different subtype, e.g., a difference
expression if the RHS of an operator+ is a negated variable. These operators
are scoped in a namespace to allow for a future "safe" version of the operators
that propagates null expressions to denote the error state when expressions
have wrong subtypes.
--
PiperOrigin-RevId: 248704153
Implement the storage class for striped difference-bound matrices (SDBM) as a
container with a difference bounds matrix and a list of stripe expressions. An
SDBM defines an integer set. Provide conversion mechanisms between lists of
SDBM expressions treated as equalities with zero or less-than-or-equal
inequalities with zero.
--
PiperOrigin-RevId: 248702871
tensor<*xf32> could be a tensor<1xf32> at runtime but this verifyShapeMatch would return failure and say function is invalid.
--
PiperOrigin-RevId: 248583038
This is in preparation for making it also support/be a parent class of MemRefType. MemRefs have similar shape/rank/element semantics and it would be useful to be able to use these same utilities for them.
This CL should not change any semantics and only change variables, types, string literals, and comments. In follow-up CLs I will prepare all callers to handle MemRef types or remove their dependence on ShapedType.
Discussion/Rationale in https://groups.google.com/a/tensorflow.org/forum/#!topic/mlir/cHLoyfGu8y8
--
PiperOrigin-RevId: 248476449
This is being integrated from an experimental side repository piece by piece over the course of several patches and will ultimately include full build support, documentation and e2e tests.
--
PiperOrigin-RevId: 248259895
Adding the additional layer of directory was discussed offline and matches the Target/ tree. The names match the defacto convention we seem to be following where the C++ namespace is ^(.+)Ops/$ matched against the directory name.
This is in preparation for patching the Quantizer into this tree, which would have been confusing without moving the Quantization dialect to its more proper home. It is left to others to move other dialects if desired.
Tested:
ninja check-mlir
--
PiperOrigin-RevId: 248171982
This trait only works for tensor and vector types at the moment, verifying that the element type of an op with only tensor and vector types match. Added a unit test for it as there is no op currently in core that uses this trait.
--
PiperOrigin-RevId: 246661697
Since SDBM expressions are a subset of affine expressions, they can be
converted to affine expressions in a straightforward way. The inverse
conversion may fail when the affine expression is not an SDBM. Implement the
inverse convresion assuming affine expressions are simplified and
canonicalizied, detect subtractive and multiplicative forms of the stripe
operation.
--
PiperOrigin-RevId: 245494735
Striped difference-bound matrix expressions are a subset of affine expressions
supporting low-complexity algorithms that can be useful for loop
transformations. This introduces the basic data data structures for building
such expressions and unique'ing them in a MLIRContext.
--
PiperOrigin-RevId: 245380206
Currently predicates are written with positional placeholders `{N}` and rely on
`formatv` as the engine to do substitution. The problem with this approach is that
the definitions of those positional placeholders are not consistent; they are
entirely up to the defining predicate of question. For example, `{0}` in various
attribute constraints is used to mean the attribute, while it is used to main the
builder for certain attribute transformations. This can become very confusing.
This CL introduces `tgfmt` as a new mechanism to better support for predicate and
rewrite rule specification. Instead of entirely relying on positional placeholders,
`tgfmt` support both positional and special placeholders. The former is used for
DAG operands. The latter, including $_builder, $_op, $_self, are used as special
"hooks" to entities in the context. With this, the predicate and rewrite rules
specification can be more consistent is more readable.
--
PiperOrigin-RevId: 243249671
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
River Riddle