Commit Graph

297 Commits

Author SHA1 Message Date
Chris Lattner 9eb3e564d3 [ODS] Make the getType() method on a OneResult instruction return a specific type.
Implement Bug 46698, making ODS synthesize a getType() method that returns a
specific C++ class for OneResult methods where we know that class.  This eliminates
a common source of casts in things like:

   myOp.getType().cast<FIRRTLType>().getPassive()

because we know that myOp always returns a FIRRTLType.  This also encourages
op authors to type their results more tightly (which is also good for
verification).

I chose to implement this by splitting the OneResult trait into itself plus a
OneTypedResult trait, given that many things are using `hasTrait<OneResult>`
to conditionalize various logic.

While this changes makes many many ops get more specific getType() results, it
is generally drop-in compatible with the previous behavior because 'x.cast<T>()'
is allowed when x is already known to be a T.  The one exception to this is that
we need declarations of the types used by ops, which is why a couple headers
needed additional #includes.

I updated a few things in tree to remove the now-redundant `.cast<>`'s, but there
are probably many more than can be removed.

Differential Revision: https://reviews.llvm.org/D93790
2020-12-26 13:52:40 -08:00
Jacques Pienaar ca1ab0c66d [mlir] Add tensor passes to passes.md 2020-12-23 16:13:03 -08:00
Lei Zhang 930c74f12d [mlir][spirv] NFC: rename SPIR-V conversion files for consistency
This commit renames various SPIR-V related conversion files for
consistency. It drops the "Convert" prefix to various files and
fixes various comment headers.

Reviewed By: hanchung, ThomasRaoux

Differential Revision: https://reviews.llvm.org/D93489
2020-12-23 14:36:46 -05:00
Alex Zinenko 65ba0cd395 [mlir] Modernize std-to-llvm operation conversion doc
This was long overdue. Replace the outdated type syntax with the new syntax,
and update the description of how memref load/stores are handled to reflect the
latest changes in the implementation.

Reviewed By: herhut

Differential Revision: https://reviews.llvm.org/D93555
2020-12-23 11:19:58 +01:00
George Mitenkov be96137461 [MLIR][SPIRVToLLVM] Updated documentation on spirv-cpu-runner
This patch adds documentation for the `mlir-spirv-cpu-runner`.
It provides an overview of applied transformations and passes, as
well as an example walk-through.

Some typos in the documentation have been fixed as well.

Reviewed By: mravishankar

Differential Revision: https://reviews.llvm.org/D93620
2020-12-22 01:47:43 +03:00
ergawy 9d2529a38b [MLIR][Docs] Fix a small typo in documentation.
Just fixes a tiny typo in a link between 2 pages.

Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D93616
2020-12-21 22:30:22 +01:00
nicolasvasilache b7ae1d3d2b [mlir][Linalg] Revisit the Linalg on tensors abstraction
This revision drops init_tensor arguments from Linalg on tensors and instead uniformizes the output buffers and output tensors to be consistent.
This significantly simplifies the usage of Linalg on tensors and is a stepping stone for
its evolution towards a mixed tensor and shape abstraction discussed in https://llvm.discourse.group/t/linalg-and-shapes/2421/19.

Differential Revision: https://reviews.llvm.org/D93469
2020-12-21 12:29:10 -08:00
George Mitenkov f6c7ebe76a [MLIR][SPIRVToLLVM] Updated documentation on entry points and not supported ops
This patch addresses two issues:
1. Not supported ops are updated to pick up the changes in the
SPIR-V dialect.

2. Conversion on `spv.ExecutionMode` is updated.

Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D91881
2020-12-21 11:20:40 +03:00
Nicolas Vasilache b88ed4ec8e [mlir][Linlag] Reflow Linalg.md - NFC
Markdown formatting seems to now be available, reflowing the doc without changing any content.
2020-12-18 16:15:58 +00:00
River Riddle fc5cf50e89 [mlir] Remove the MutableDictionaryAttr class
This class used to serve a few useful purposes:
* Allowed containing a null DictionaryAttr
* Provided some simple mutable API around a DictionaryAttr

The first of which is no longer an issue now that there is much better caching support for attributes in general, and a cache in the context for empty dictionaries. The second results in more trouble than it's worth because it mutates the internal dictionary on every action, leading to a potentially large number of dictionary copies. NamedAttrList is a much better alternative for the second use case, and should be modified as needed to better fit it's usage as a DictionaryAttrBuilder.

Differential Revision: https://reviews.llvm.org/D93442
2020-12-17 17:18:42 -08:00
Alex Zinenko 0efb0dd978 [mlir] Partially update the conversion-to-llvm document
This document was not updated after the LLVM dialect type system had been
reimplemented and was using an outdated syntax. Rewrite the part of the
document that concerns type conversion and prepare the ground for splitting it
into a document that explains how built-in types are converted and a separate
document that explains how standard types and functions are converted, which
will better correspond to the fact that built-in types do not belong to the
standard dialect.

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D93486
2020-12-17 22:00:09 +01:00
Richard Uhler a48172cf1c Add brief description of dialects doc section.
Reviewed By: jpienaar

Differential Revision: https://reviews.llvm.org/D93466
2020-12-17 18:37:34 +00:00
Lei Zhang 0117865412 [mlir][spirv] NFC: Shuffle code around to better follow convention
This commit shuffles SPIR-V code around to better follow MLIR
convention. Specifically,

* Created IR/, Transforms/, Linking/, and Utils/ subdirectories and
  moved suitable code inside.
* Created SPIRVEnums.{h|cpp} for SPIR-V C/C++ enums generated from
  SPIR-V spec. Previously they are cluttered inside SPIRVTypes.{h|cpp}.
* Fixed include guards in various header files (both .h and .td).
* Moved serialization tests under test/Target/SPIRV.
* Renamed TableGen backend -gen-spirv-op-utils into -gen-spirv-attr-utils
  as it is only generating utility functions for attributes.

Reviewed By: mravishankar

Differential Revision: https://reviews.llvm.org/D93407
2020-12-17 11:03:26 -05:00
Alex Zinenko eb4917d121 [mlir] Fix syntax error in markdown documentation 2020-12-17 14:09:31 +01:00
Alex Zinenko ccdd8c7759 [mlir] Move LLVM Dialect Op documentation to ODS
This was long overdue. The initial documentation for the LLVM dialect was
introduced before ODS had support for long descriptions. This is now possible,
so the documentation is moved to ODS, which can serve as a single source of
truth. The high-level description of the dialect structure is updated to
reflect that.

Depends On: D93315

Reviewed By: rriddle, mehdi_amini

Differential Revision: https://reviews.llvm.org/D93425
2020-12-17 12:32:35 +01:00
Alex Zinenko c2751250f3 [mlir] partially update LLVM dialect documentation
Rewrite the parts of the documentation that became stale: context/module
handling and type system. Expand the type system description.

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D93315
2020-12-17 12:32:34 +01:00
River Riddle 95019de8a1 [mlir][IR] Define the singleton builtin types in ODS instead of C++
This exposes several issues with the current generation that this revision also fixes.
 * TypeDef now allows specifying the base class to use when generating.
 * TypeDef now inherits from DialectType, which allows for using it as a TypeConstraint
 * Parser/Printers are now no longer generated in the header(removing duplicate symbols), and are now only generated when necessary.
    - Now that generatedTypeParser/Printer are only generated in the definition file,
      existing users will need to manually expose this functionality when necessary.
 * ::get() is no longer generated for singleton types, because it isn't necessary.

Differential Revision: https://reviews.llvm.org/D93270
2020-12-15 13:42:19 -08:00
Richard Uhler ee43dcaad7 [mlir] Add section page for Rationale docs.
With a brief overview and summary of each of the Rationale docs.

Differential Revision: https://reviews.llvm.org/D93245
2020-12-14 14:49:30 -08:00
River Riddle c234b65cef [mlir][OpFormat] Add support for emitting newlines from the custom format of an operation
This revision adds a new `printNewline` hook to OpAsmPrinter that allows for printing a newline within the custom format of an operation, that is then indented to the start of the operation. Support for the declarative assembly format is also added, in the form of a `\n` literal.

Differential Revision: https://reviews.llvm.org/D93151
2020-12-14 12:00:43 -08:00
River Riddle e9987ad878 [mlir][docs] Tidy up the pass infrastructure documentation
The doc has grown stale and is missing some recent changes to the infrastructure.

Differential Revision: https://reviews.llvm.org/D93081
2020-12-11 17:53:33 -08:00
River Riddle d1e0545445 [mlir][Interfaces] Tidy up the documentation for interfaces
The documentation has become a bit stale with age, and doesn't include great documentation for some newer concepts. This revision tidies up a majority of it, with some more cleanup to come in the future. The documentation for the declarative specification is also moved from OpDefinitions.md to Interfaces.md, which is a much more logical place for it to live.

Differential Revision: https://reviews.llvm.org/D92895
2020-12-09 15:34:07 -08:00
River Riddle c7cae0e4fa [mlir][Attributes][NFC] Move all builtin Attribute classes to BuiltinAttributes.h
This mirrors the file structure of Types.

Differential Revision: https://reviews.llvm.org/D92499
2020-12-03 18:02:11 -08:00
River Riddle 09f7a55fad [mlir][Types][NFC] Move all of the builtin Type classes to BuiltinTypes.h
This is part of a larger refactoring the better congregates the builtin structures under the BuiltinDialect. This also removes the problematic "standard" naming that clashes with the "standard" dialect, which is not defined within IR/. A temporary forward is placed in StandardTypes.h to allow time for downstream users to replaced references.

Differential Revision: https://reviews.llvm.org/D92435
2020-12-03 18:02:10 -08:00
Uday Bondhugula b276bf5a57 [MLIR][NFC] Fix mix up between dialect attribute values and names
Clear up documentation on dialect attribute values. Fix/improve
ModuleOp verifier error message on dialect prefixed attribute names.
Additional discussion is here:
https://llvm.discourse.group/t/moduleop-attributes/2325

Differential Revision: https://reviews.llvm.org/D92502
2020-12-03 02:34:15 +05:30
Hanhan Wang c266c56d54 [mlir][doc] Correct method names in DialectConversion.md to match the code.
Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D92416
2020-12-02 00:04:07 -08:00
ergawy 2074fec5be [MLIR][LLVM] Fix a tiny typo in the dialect docs.
Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D92333
2020-12-01 20:06:41 +00:00
Felipe de Azevedo Piovezan 63d3198ced [mlir] Fix typos and broken links in LangRef
Many pages have had their titles renamed over time,
causing broken links to spread throughout the documentation.

Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D92093
2020-11-27 14:07:32 +01:00
Stella Laurenzo f4f8a67aaf [mlir][Python] Support finding pybind11 from the python environment.
* Makes `pip install pybind11` do the right thing with no further config.
* Since we now require a version of pybind11 greater than many LTS OS installs (>=2.6), a more convenient way to get a recent version is preferable.
* Also adds the version spec to find_package so it will skip older versions that may be lying around.
* Tested the full matrix of old system install, no system install, pip install and no pip install.

Differential Revision: https://reviews.llvm.org/D91903
2020-11-22 12:52:01 -08:00
ergawy 2f3adc54b5 [MLIR][SPIRV] Rename `spv._module_end` to `spv.mlir.endmodule`
This commit does the renaming mentioned in the title in order to bring
'spv' dialect closer to the MLIR naming conventions.

Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D91792
2020-11-19 13:25:13 -05:00
ergawy 9bd50abc4c [MLIR][SPIRV] Rename `spv._merge` to `spv.mlir.merge`
This commit does the renaming mentioned in the title in order to bring
'spv' dialect closer to the MLIR naming conventions.

Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D91797
2020-11-19 10:04:35 -05:00
ergawy adf9f64a02 [MLIR][SPIRV] Rename `spv._reference_of` to `spv.mlir.referenceof`
This commit does the renaming mentioned in the title in order to bring
'spv' dialect closer to the MLIR naming conventions.

Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D91715
2020-11-18 13:27:29 -05:00
zhanghb97 77133b29b9 [mlir] Get array from the dense elements attribute with buffer protocol.
- Add `mlirElementsAttrGetType` C API.
- Add `def_buffer` binding to PyDenseElementsAttribute.
- Implement the protocol to access the buffer.

Differential Revision: https://reviews.llvm.org/D91021
2020-11-18 15:50:59 +08:00
ergawy 9793edd5bf [MLIR][SPIRV] Rename `spv._address_of` to `spv.mlir.addressof`
This commit does the renaming mentioned in the title in order to bring
`spv` dialect closer to the MLIR naming conventions.

Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D91609
2020-11-17 12:12:27 -05:00
Rahul Joshi b7382ed3fe [MLIR] Extend Symbol verification to reject public symbol declarations.
- Extend the Symbol interface with `isDeclaration` to identify operations that declare
  a symbol as opposed to define it.
- Extend verification to disallow public declarations as per the discussion in
   https://llvm.discourse.group/t/rfc-symbol-definition-declaration-x-visibility-checks/2140
- Adopt the new interface for `FuncOp` and fix test and code to not have/create public
  function declarations.

Differential Revision: https://reviews.llvm.org/D91456
2020-11-16 16:05:32 -08:00
Jacques Pienaar cf58df2949 [mlir] Add passes to passes.md to cleanup empty tabs on website index 2020-11-14 11:25:24 -08:00
Jean-Michel Gorius e47805c995 [mlir] Add plus, star and optional less/greater parsing
The tokens are already handled by the lexer. This revision exposes them
through the parser interface.

This revision also adds missing functions for question mark parsing and
completes the list of valid punctuation tokens in the documentation.

Differential Revision: https://reviews.llvm.org/D90907
2020-11-12 13:28:31 +01:00
Julian Gross 0313e3bfe6 [MLIR] Added documentation and manual to use bufferization features.
Added documentation about the bufferization features.
Furthermore, the usage of pre- and post-processing is described.
This also includes information about optimization functionalities.

Differential Revision: https://reviews.llvm.org/D90675
2020-11-12 10:43:05 +01:00
Sean Silva b4fa28b408 [mlir] Add ElementwiseMappable trait and apply it to std elementwise ops.
This patch adds an `ElementwiseMappable` trait as discussed in the RFC
here:
https://llvm.discourse.group/t/rfc-std-elementwise-ops-on-tensors/2113/23

This trait can power a number of transformations and analyses.
A subsequent patch adds a convert-elementwise-to-linalg pass exhibits
how this trait allows writing generic transformations.
See https://reviews.llvm.org/D90354 for that patch.

This trait slightly changes some verifier messages, but the diagnostics
are usually about as good. I fiddled with the ordering of the trait in
the .td file trait lists to minimize the changes here.

Differential Revision: https://reviews.llvm.org/D90731
2020-11-10 13:44:44 -08:00
Rahul Joshi 8b5a3e4632 [MLIR] Change FuncOp assembly syntax to print visibility inline instead of in attrib dict.
- Change syntax for FuncOp to be `func <visibility>? @name` instead of printing the
  visibility in the attribute dictionary.
- Since printFunctionLikeOp() and parseFunctionLikeOp() are also used by other
  operations, make the "inline visibility" an opt-in feature.
- Updated unit test to use and check the new syntax.

Differential Revision: https://reviews.llvm.org/D90859
2020-11-09 11:08:08 -08:00
Mehdi Amini 60a95b0dd7 Include the generated documentation for list of ops in the TOSA dialect 2020-11-08 00:09:35 +00:00
Suraj Sudhir b28121133d TOSA MLIR Dialect
This is the TOSA MLIR Dialect described in the following MLIR RFC: https://llvm.discourse.group/t/rfc-tosa-dialect-in-mlir/1971/24

Reviewed By: stellaraccident

Differential Revision: https://reviews.llvm.org/D90411
2020-11-07 08:38:09 -08:00
Mehdi Amini c7994bd939 Switch from C-style comments `/* ... */` to C++ style `//` (NFC)
This is mostly a scripted update, it may not be perfect.

function replace() {
  FROM=$1
  TO=$2
  git grep "$FROM" $REPO_PATH |cut -f 1 -d : | sort -u | \
    while read file; do
      sed -i "s#$FROM#$TO#" $file ;
    done
}

replace '|\*===----------------------------------------------------------------------===\*|$' '//===----------------------------------------------------------------------===//'
replace '^/\* =' '//=='
replace '^/\*=' '//='
replace '^\\\*=' '//='
replace '^|\*' '//'
replace ' \*|$' ''
replace '=\*\\$' '=//'
replace '== \*/$' '===//'
replace '==\*/$' '==//'
replace '^/\*\*\(.*\)\*/$' '///\1'
replace '^/\*\(.*\)\*/$' '//\1'
replace '//============================================================================//' '//===----------------------------------------------------------------------===//'

Differential Revision: https://reviews.llvm.org/D90732
2020-11-04 18:11:13 +00:00
mikeurbach 2e36e0dad5 [MLIR] Move eraseArguments and eraseResults to FunctionLike
Previously, they were only defined for `FuncOp`.

To support this, `FunctionLike` needs a way to get an updated type
from the concrete operation. This adds a new hook for that purpose,
called `getTypeWithoutArgsAndResults`.

For now, `FunctionLike` continues to assume the type is
`FunctionType`, and concrete operations that use another type can hide
the `getType`, `setType`, and `getTypeWithoutArgsAndResults` methods.

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D90363
2020-11-03 16:53:46 -07:00
Stella Laurenzo 895ae487a2 NFC: Wrap lines in Python.md. 2020-11-01 19:24:06 -08:00
Stella Laurenzo af66cd173f [mlir][Python] Context managers for Context, InsertionPoint, Location.
* Finishes support for Context, InsertionPoint and Location to be carried by the thread using context managers.
* Introduces type casters and utilities so that DefaultPyMlirContext and DefaultPyLocation in method signatures does the right thing (allows explicit or gets from the thread context).
* Extend the rules for the thread context stack to handle nesting, appropriately inheriting and clearing depending on whether the context is the same.
* Refactors all method signatures to follow the new convention on trailing parameters for defaulting parameters (loc, ip, context). When the objects are carried in the thread context, this allows most explicit uses of these values to be elided.
* Removes the style guide section on putting accessors to construct global objects on the PyMlirContext: this style fails to make good use of the new facility since it is often the only thing remaining needing an MlirContext.
* Moves Module parse/creation from mlir.ir.Context to static methods on mlir.ir.Module.
* Moves Context.create_operation to a static Operation.create method.
* Moves Type parsing from mlir.ir.Context to static methods on mlir.ir.Type.
* Moves Attribute parsing from mlir.ir.Context to static methods on mlir.ir.Attribute.
* Move Location factory methods from mlir.ir.Context to static methods on mlir.ir.Location.
* Refactors the std dialect fake "ODS" generated code to take advantage of the new scheme.

Differential Revision: https://reviews.llvm.org/D90547
2020-11-01 19:00:39 -08:00
River Riddle fa4174792a [mlir][Inliner] Add a `wouldBeCloned` flag to each of the `isLegalToInline` hooks.
Often times the legality of inlining can change depending on if the callable is going to be inlined in-place, or cloned. For example, some operations are not allowed to be duplicated and can only be inlined if the original callable will cease to exist afterwards. The new `wouldBeCloned` flag allows for dialects to hook into this when determining legality.

Differential Revision: https://reviews.llvm.org/D90360
2020-10-28 21:49:28 -07:00
River Riddle 501fda0167 [mlir][Inliner] Add a new hook for checking if it is legal to inline a callable into a call
In certain situations it isn't legal to inline a call operation, but this isn't something that is possible(at least not easily) to prevent with the current hooks. This revision adds a new hook so that dialects with call operations that shouldn't be inlined can prevent it.

Differential Revision: https://reviews.llvm.org/D90359
2020-10-28 21:49:28 -07:00
Kazuaki Ishizaki 41b09f4eff [mlir] NFC: fix trivial typos
fix typos in comments and documents

Reviewed By: jpienaar

Differential Revision: https://reviews.llvm.org/D90089
2020-10-29 04:05:22 +09:00
John Demme 035e12e664 [MLIR] [ODS] Allowing attr-dict in custom directive
Enhance tblgen's declarative assembly format to allow `attr-dict` in
custom directives.

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D89772
2020-10-28 01:24:16 +00:00
Alex Zinenko 89eab30e5c [mlir] use OpBuilderDAG instead of OpBuilder
A recent commit introduced a new syntax for specifying builder arguments in
ODS, which is better amenable to automated processing, and deprecated the old
form. Transition all dialects as well as Linalg ODS generator to use the new
syntax.

Add a deprecation notice to ODS generator.

Reviewed By: rriddle, jpienaar

Differential Revision: https://reviews.llvm.org/D90038
2020-10-27 10:21:49 +01:00