Commit Graph

1077 Commits

Author SHA1 Message Date
River Riddle caddfbd2a9 [mlir][docs] Remove the BuiltinDialect documentation from langref and generate it from ODS
Now that all of the builtin dialect is generated from ODS, its documentation in LangRef can be split out and replaced with references to Dialects/Builtin.md. LangRef is quite crusty right now and should really have a full cleanup done in a followup.

Differential Revision: https://reviews.llvm.org/D98562
2021-03-19 18:21:33 -07:00
River Riddle 1a75be0023 [mlir][NFC] Use the native range instead of APInt when computing operand ranges
This removes the need to construct an APInt for each value, given that it is guaranteed to contain 32 bit elements.

BEGIN_PUBLIC
    ...text exposed to open source public git repo...
END_PUBLIC
2021-03-19 17:11:46 -07:00
Christian Sigg a825fb2c07 [mlir] Remove mlir-rocm-runner
This change combines for ROCm what was done for CUDA in D97463, D98203, D98360, and D98396.

I did not try to compile SerializeToHsaco.cpp or test mlir/test/Integration/GPU/ROCM because I don't have an AMD card. I fixed the things that had obvious bit-rot though.

Reviewed By: whchung

Differential Revision: https://reviews.llvm.org/D98447
2021-03-19 00:24:10 -07:00
Vladislav Vinogradov 02834e1bd9 [mlir][ODS] Get rid of limitations in rewriters generator
Do not limit the number of arguments in rewriter pattern.

Introduce separate `FmtStrVecObject` class to handle
format of variadic `std::string` array.

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D97839
2021-03-18 12:21:06 +03:00
Aart Bik f2557cf7ed [mlir][cpu-runner] register all llvm ir dialects
This fixes broken JIT functionality on emulator platforms.
With Alex' recent movement towards squashing llvm ir dialects
into target specific dialects, we now must ensure these dialects
are registered to the cpu runner to ensure JIT can lower this
to proper LLVM IR before handing this off to the backend.

Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D98727
2021-03-17 10:05:46 -07:00
Vladislav Vinogradov fee9054232 [mlir][ODS] Support specialized Attribute class for Enums
Add a feature to `EnumAttr` definition to generate
specialized Attribute class for the particular enumeration.

This class will inherit `StringAttr` or `IntegerAttr` and
will override `classof` and `getValue` methods.

With this class the enumeration predicate can be checked with simple
RTTI calls (`isa`, `dyn_cast`) and it will return the typed enumeration
directly instead of raw string/integer.

Based on the following discussion:
https://llvm.discourse.group/t/rfc-add-enum-attribute-decorator-class/2252

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D97836
2021-03-17 16:44:24 +03:00
River Riddle caa7038a89 [mlir][IR] Move the remaining builtin attributes to ODS.
With this revision, all builtin attributes and types will have been moved to the ODS generator.

Differential Revision: https://reviews.llvm.org/D98474
2021-03-16 16:31:53 -07:00
River Riddle 425e11eea1 [mlir][AttrTypeDefGen] Add support for custom parameter comparators
Some parameters to attributes and types rely on special comparison routines other than operator== to ensure equality. This revision adds support for those parameters by allowing them to specify a `comparator` code block that determines if `$_lhs` and `$_rhs` are equal. An example of one of these paramters is APFloat, which requires `bitwiseIsEqual` for bitwise comparison (which we want for attribute equality).

Differential Revision: https://reviews.llvm.org/D98473
2021-03-16 16:31:53 -07:00
Alex Zinenko b868a3edad [mlir] fix SPIR-V CPU and Vulkan runners after e2310704d8
The commit in question changed the syntax but did not update the runner
tests. This also required registering the MemRef dialect for custom
parser to work correctly.
2021-03-15 18:36:58 +01:00
Alex Zinenko a88371490d [mlir] better formatting in interface docs
Start the description from a new line instead of putting the first
paragraph in the section header. Wrap the class name in backticks to
make it clear that it relates to the code.
2021-03-15 11:10:32 +01:00
Christian Sigg 1ef544d4a9 [mlir] Remove mlir-cuda-runner
Change CUDA integration tests to use mlir-opt + mlir-cpu-runner instead.

Depends On D98203

Reviewed By: herhut

Differential Revision: https://reviews.llvm.org/D98396
2021-03-12 14:06:43 +01:00
Alex Zinenko 3ba14fa0ce [mlir] Introduce data layout modeling subsystem
Data layout information allows to answer questions about the size and alignment
properties of a type. It enables, among others, the generation of various
linear memory addressing schemes for containers of abstract types and deeper
reasoning about vectors. This introduces the subsystem for modeling data
layouts in MLIR.

The data layout subsystem is designed to scale to MLIR's open type and
operation system. At the top level, it consists of attribute interfaces that
can be implemented by concrete data layout specifications; type interfaces that
should be implemented by types subject to data layout; operation interfaces
that must be implemented by operations that can serve as data layout scopes
(e.g., modules); and dialect interfaces for data layout properties unrelated to
specific types. Built-in types are handled specially to decrease the overall
query cost.

A concrete default implementation of these interfaces is provided in the new
Target dialect. Defaults for built-in types that match the current behavior are
also provided.

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D97067
2021-03-11 16:54:47 +01:00
Christian Sigg bafe418d12 [mlir] Change test-gpu-to-cubin to derive from SerializeToBlobPass
Clean-up after D98279, remove one call to createConvertGPUKernelToBlobPass().

Depends On D98203

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D98360
2021-03-11 10:42:20 +01:00
Hanhan Wang d5d4fb635e [mlir][linalg] Add support for using scalar attributes in TC ops.
Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D97876
2021-03-10 01:51:12 -08:00
Mehdi Amini 890afad954 Fix Flang build after MLIR API changes around `generatedTypeParser` 2021-03-09 23:19:30 +00:00
Christian Sigg 840ff84d33 [mlir] Default for gpu-binary-annotation option.
Provide default for gpuBinaryAnnotation so that we don't need to specify it in tests.

The annotation likely only needs to be target specific if we want to lower to e.g. both CUDA and ROCDL.

Reviewed By: herhut, bondhugula

Differential Revision: https://reviews.llvm.org/D98168
2021-03-09 21:01:50 +01:00
Mehdi Amini 79f736c150 Switch generatedTypeParser/generatedAttributeParser to return an OptionalParseResult
This allows the caller to distinguish between a parse error or an
unmatched keyword. It fixes the redundant error that was emitted by the
caller when the generated parser would fail.

Differential Revision: https://reviews.llvm.org/D98162
2021-03-09 19:43:45 +00:00
Vladislav Vinogradov 2241b3986c [mlir][CMAKE] Fix cross-compilation build
Use `MLIR_LINALG_ODS_GEN` and `MLIR_LINALG_ODS_YAML_GEN` variables
instead of `MLIR_LINALG_ODS_GEN_EXE` and `MLIR_LINALG_ODS_YAML_GEN_EXE`.
The former are defined in PARENT SCOPE only, so the `if` condition
is never evaluates to `TRUE`.

The logic should be the following (taken from tblgen part):

1. `TOOL_NAME` - CACHE variable (default equal to target name).
   User can override it to actual executable path.
2. `TOOL_NAME_EXE` - internal variable, initialized to `${TOOL_NAME}` first.
   In case of cross-compilation (`LLVM_USE_HOST_TOOLS == TRUE`) if user
   didn't set own path to native executable via `TOOL_NAME` variable,
   CMake will create separate targets to build native tool and
   will override `TOOL_NAME_EXE` to the executable produced by this target.
3. `TOOL_NAME_TARGET` - internal variable, which points to tool target name.
   If the native tool is built as described above, it will point to the
   target correspondant to that native tool.

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D98025
2021-03-09 10:51:56 +03:00
Stella Laurenzo e31c77b182 [mlir][python] Reorganize MLIR python into namespace packages.
* Only leaf packages are non-namespace packages. This allows most of the top levels to be split into different directories or deployment packages. In the previous state, the presence of __init__.py files at each level meant that the entire tree could only ever exist in one physical directory on the path.
* This changes the API usage slightly: `import mlir` will no longer do a deep import of `mlir.ir`, etc. This may necessitate some client code changes.
* Dialect gen code was restructured so that the user is responsible for providing the `my_dialect.py` file, which then must import its peer `_my_dialect_ops_gen`. This gives complete control of the dialect namespace to the user instead of to tablegen code, allowing further dialect-specific python APIs.
* Correspondingly, the previous extension modules `_my_dialect.py` are now `_my_dialect_ops_ext.py`.
* Now that the `linalg` namespace is open, moved the `linalg_opdsl` tool into it.
* This may require some corresponding downstream adjustments to npcomp, circt, et al:
  * Probably some shallow imports need to be converted to deep imports (i.e. not `import mlir` brings in the world).
  * Each tablegen generated dialect now needs an explicit `foo.py` which does a `from ._foo_ops_gen import *`. This is similar to the way that generated code operates in the C++ world.
  * If providing dialect op extensions, those need to be moved from `_foo.py` -> `_foo_ops_ext.py`.

Differential Revision: https://reviews.llvm.org/D98096
2021-03-08 23:01:34 -08:00
Mehdi Amini a7cac0d9a5 Fix Dialect doc generation to special case for the Builtin dialect empty name
This should fix the issue with an empty entry for the builtin dialect on
the website.

Differential Revision: https://reviews.llvm.org/D98074
2021-03-05 23:47:50 +00:00
Diego Caballero 2de6dbda66 [mlir] Add 'Skip' result to Operation visitor
This patch is a follow-up on D97217. It adds a new 'Skip' result to the Operation visitor
so that a callback can stop the ongoing visit of an operation/block/region and
continue visiting the next one without fully interrupting the walk. Skipping is
needed to be able to erase an operation/block in pre-order and do not continue
visiting the internals of that operation/block.

Related to the skipping mechanism, the patch also introduces the following changes:
 * Added new TestIRVisitors pass with basic testing for the IR visitors.
 * Fixed missing early increment ranges in visitor implementation.
 * Updated documentation of walk methods to include erasure information and walk
   order information.

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D97820
2021-03-06 00:02:20 +02:00
Christian Sigg 5fedf30748 [mlir] Make cuInit() call thread-safe.
Reviewed By: herhut

Differential Revision: https://reviews.llvm.org/D98024
2021-03-05 16:06:15 +01:00
River Riddle 1447ec5182 [mlir][AttrDefGen] Add support for specifying the value type of an attribute
The value type of the attribute can be specified by either overriding the typeBuilder field on the AttrDef, or by providing a parameter of type `AttributeSelfTypeParameter`. This removes the need to define custom storage class constructors for attributes that have a value type other than NoneType.

Differential Revision: https://reviews.llvm.org/D97590
2021-03-04 13:04:05 -08:00
Arpith C. Jacob 4e393350c5 [mlir] Add an AccessGroup attribute to load/store LLVM dialect ops and generate the access_group LLVM metadata.
This also includes LLVM dialect ops created from intrinsics.

Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D97944
2021-03-04 18:17:23 +01:00
Alex Zinenko 32c49c7d73 [mlir] ODS: change OpBuilderDAG to OpBuilder
We no longer have the non-DAG version.

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D97856
2021-03-04 10:55:02 +01:00
Alex Zinenko 19db802e7b [mlir] make implementations of translation to LLVM IR interfaces private
There is no need for the interface implementations to be exposed, opaque
registration functions are sufficient for all users, similarly to passes.

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D97852
2021-03-04 09:16:32 +01:00
River Riddle 83ef862fad [mlir] Add support for generating Attribute classes for ODS
The support for attributes closely maps that of Types (basically 1-1) given that Attributes are defined in exactly the same way as Types. All of the current ODS TypeDef classes get an Attr equivalent. The generation of the attribute classes themselves share the same generator as types.

Differential Revision: https://reviews.llvm.org/D97589
2021-03-03 16:41:49 -08:00
Hanhan Wang 497b7b8c00 [mlir][linalg] Delete unused vars if there are shaped-only operands.
Reviewed By: stella.stamenova

Differential Revision: https://reviews.llvm.org/D97851
2021-03-03 09:36:08 -08:00
Vladislav Vinogradov 5d613e42d3 [mlir][ODS] Use StringLiteral instead of StringRef when applicable
Use `StringLiteral` for function return type if it is known to return
constant string literals only.

This will make it visible to API users, that such values can be safely
stored, since they refers to constant data, which will never be deallocated.

`StringRef` is general is not safe to store for a long term,
since it might refer to temporal data allocated in heap.

Add `inline` and `constexpr` methods support to `OpMethod`.

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D97390
2021-03-03 16:15:12 +03:00
Christian Sigg 9d7be77bf9 [mlir] Move cuda tests
Move test inputs to test/Integration directory.
Move runtime wrappers to ExecutionEngine.

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D97463
2021-03-03 13:16:51 +01:00
Hanhan Wang c0f8115c73 [mlir][linalg] Only generate one var for an attrUse.
Some variables are unused after D97383 landed. We should generate one symbol for one attrUse.

Reviewed By: stellaraccident

Differential Revision: https://reviews.llvm.org/D97794
2021-03-02 12:48:20 -08:00
Stella Laurenzo d36a15de1f [mlir][linalg] Memoize indexing map generation.
Differential Revision: https://reviews.llvm.org/D97602
2021-03-01 21:15:40 -08:00
Stella Stamenova 801067f4c0 [mlir][lldb] Fix several gcc warnings in mlir and lldb
These warnings are raised when compiling with gcc due to either having too few or too many commas, or in the case of lldb, the possibility of a nullptr.

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D97586
2021-03-01 13:48:22 -08:00
Stella Laurenzo 2ceedc3a20 [mlir][linalg] Add symbolic type conversion to linalg named ops.
This enables this kind of construct in the DSL to generate a named op that is polymorphic over numeric type variables `T` and `U`, generating the correct arithmetic casts at construction time:

```
@tc_def_op
def polymorphic_matmul(A=TensorDef(T1, S.M, S.K),
                       B=TensorDef(T2, S.K, S.N),
                       C=TensorDef(U, S.M, S.N, output=True)):
  implements(ContractionOpInterface)
  C[D.m, D.n] += cast(U, A[D.m, D.k]) * cast(U, B[D.k, D.n])
```

Presently, this only supports type variables that are bound to the element type of one of the arguments, although a further extension that allows binding a type variable to an attribute would allow some more expressiveness and may be useful for some formulations. This is left to a future patch. In addition, this patch does not yet materialize the verifier support which ensures that types are bound correctly (for such simple examples, failing to do so will yield IR that fails verification, it just won't yet fail with a precise error).

Note that the full grid of extensions/truncation/int<->float conversions are supported, but many of them are lossy and higher level code needs to be mindful of numerics (it is not the job of this level).

As-is, this should be sufficient for most integer matmul scenarios we work with in typical quantization schemes.

Differential Revision: https://reviews.llvm.org/D97603
2021-02-27 15:52:35 -08:00
Stella Laurenzo 5867c18e2c [mlir][linalg] Generate additional interfaces for named ops.
* Adds ContractionOpInterface to polymorphic_matmul.

Differential Revision: https://reviews.llvm.org/D97601
2021-02-27 15:43:41 -08:00
River Riddle e6260ad043 [mlir] Simplify various pieces of code now that Identifier has access to the Context/Dialect
This also exposed a bug in Dialect loading where it was not correctly identifying identifiers that had the dialect namespace as a prefix.

Differential Revision: https://reviews.llvm.org/D97431
2021-02-26 18:00:05 -08:00
Jacques Pienaar 91ab48ea6b [mlir] Add regions to OpAdaptor
Allows querying regions too via OpAdaptor's generated. This does not yet move region verification to adaptor nor require regions for ops where needed.

Differential Revision: https://reviews.llvm.org/D97519
2021-02-26 16:25:00 -08:00
Hanhan Wang 855a119604 [mlir][linalg] Allow TC ops taking an unused shaped operand.
If one operand is not used in the formula, it will be considered a
shaped operand. And the result of indexing map of the operand will be the first
reduction dims.

Depends On D97383

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D97384
2021-02-26 06:45:56 -08:00
Benjamin Kramer 4941fef9c4 [mlir] Silence some deprecation warnings after dffc487b07 2021-02-26 15:15:56 +01:00
Vladislav Vinogradov f4d78a5e3a [mlir][NFC] Add missing namespace qualifier to ODS generated code
Use `::mlir::Region` inside array ref for `VariadicRegion`.

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D97376
2021-02-25 17:48:32 +03:00
Marius Brehler 699041123e [mlir] Fix emitting attribute documentation
This fixes the documentation emitted for type parameters. Also adds a
missing empty line, rendered as line break in mark down.

Co-authored-by: Simon Camphausen <simon.camphausen@iml.fraunhofer.de>

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D97267
2021-02-25 08:23:50 +01:00
Hanhan Wang 21895a2bef [mlir][linalg] Reuse the symbol if attribute uses are identical.
Depends On D97312

Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D97383
2021-02-24 11:42:13 -08:00
Hanhan Wang 705068cb8c [mlir][linalg] Support for using output values in TC definitions.
This will allow us to define select(pred, in, out) for TC ops, which is useful
for pooling ops.

Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D97312
2021-02-24 11:37:45 -08:00
Christian Sigg eb8d6af5e4 [mlir] Specify cuda-runner pass pipeline as command line options.
The cuda-runner registers two pass pipelines for nested passes,
so that we don't have to use verbose textual pass pipeline specification.

Reviewed By: herhut

Differential Revision: https://reviews.llvm.org/D97091
2021-02-24 14:36:52 +01:00
River Riddle 06e25d5645 [mlir][IR] Refactor the `getChecked` and `verifyConstructionInvariants` methods on Attributes/Types
`verifyConstructionInvariants` is intended to allow for verifying the invariants of an attribute/type on construction, and `getChecked` is intended to enable more graceful error handling aside from an assert. There are a few problems with the current implementation of these methods:
* `verifyConstructionInvariants` requires an mlir::Location for emitting errors, which is prohibitively costly in the situations that would most likely use them, e.g. the parser.
This creates an unfortunate code duplication between the verifier code and the parser code, given that the parser operates on llvm::SMLoc and it is an undesirable overhead to pre-emptively convert from that to an mlir::Location.
* `getChecked` effectively requires duplicating the definition of the `get` method, creating a quite clunky workflow due to the subtle different in its signature.

This revision aims to talk the above problems by refactoring the implementation to use a callback for error emission. Using a callback allows for deferring the costly part of error emission until it is actually necessary.

Due to the necessary signature change in each instance of these methods, this revision also takes this opportunity to cleanup the definition of these methods by:
* restructuring the signature of `getChecked` such that it can be generated from the same code block as the `get` method.
* renaming `verifyConstructionInvariants` to `verify` to match the naming scheme of the rest of the compiler.

Differential Revision: https://reviews.llvm.org/D97100
2021-02-22 17:37:49 -08:00
Kern Handa 2d62212b06 [mlir] Export CUDA and Vulkan runtime wrappers on Windows
Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D97140
2021-02-21 22:58:55 -08:00
Stella Laurenzo 6c9541d4dd Implement simple type polymorphism for linalg named ops.
* It was decided that this was the end of the line for the existing custom tc parser/generator, and this is the first step to replacing it with a declarative format that maps well to mathy source languages.
* One such source language is implemented here: https://github.com/stellaraccident/mlir-linalgpy/blob/main/samples/mm.py
  * In fact, this is the exact source of the declarative `polymorphic_matmul` in this change.
  * I am working separately to clean this python implementation up and add it to MLIR (probably as `mlir.tools.linalg_opgen` or equiv). The scope of the python side is greater than just generating named ops: the ops are callable and directly emit `linalg.generic` ops fully dynamically, and this is intended to be a feature for frontends like npcomp to define custom linear algebra ops at runtime.
* There is more work required to handle full type polymorphism, especially with respect to integer formulations, since they require more specificity wrt types.
* Followups to this change will bring the new generator to feature parity with the current one and delete the current. Roughly, this involves adding support for interface declarations and attribute symbol bindings.

Differential Revision: https://reviews.llvm.org/D97135
2021-02-21 14:30:31 -08:00
Eugene Zhulenev f99ccf6516 [mlir] Add math polynomial approximation pass
This gives ~30x speedup compared to expanding Tanh into exp operations:

```
name                  old cpu/op  new cpu/op  delta
BM_mlir_Tanh_f32/10    253ns ± 3%    55ns ± 7%  -78.35%  (p=0.000 n=44+41)
BM_mlir_Tanh_f32/100  2.21µs ± 4%  0.14µs ± 8%  -93.85%  (p=0.000 n=48+49)
BM_mlir_Tanh_f32/1k   22.6µs ± 4%   0.7µs ± 5%  -96.68%  (p=0.000 n=32+42)
BM_mlir_Tanh_f32/10k   225µs ± 5%     7µs ± 6%  -96.88%  (p=0.000 n=49+55)

name                  old time/op             new time/op             delta
BM_mlir_Tanh_f32/10    259ns ± 1%               56ns ± 2%  -78.31%        (p=0.000 n=41+39)
BM_mlir_Tanh_f32/100  2.27µs ± 1%             0.14µs ± 5%  -93.89%        (p=0.000 n=46+49)
BM_mlir_Tanh_f32/1k   22.9µs ± 1%              0.8µs ± 4%  -96.67%        (p=0.000 n=30+42)
BM_mlir_Tanh_f32/10k   230µs ± 0%                7µs ± 3%  -96.88%        (p=0.000 n=37+55)
```

This approximations is based on Eigen::generic_fast_tanh function

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D96739
2021-02-19 12:43:36 -08:00
Alex Zinenko 12875ed976 [mlir] generate enum translation functions with unused attribute
The functions translating enums to LLVM IR are generated in a single
file included in many places, not all of which use all translations.
Generate functions with "unused" attribute to silence compiler warnings.

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D96880
2021-02-18 09:44:40 +01:00
Alex Zinenko ce8f10d6cb [mlir] Simplify ModuleTranslation for LLVM IR
A series of preceding patches changed the mechanism for translating MLIR to
LLVM IR to use dialect interface with delayed registration. It is no longer
necessary for specific dialects to derive from ModuleTranslation. Remove all
virtual methods from ModuleTranslation and factor out the entry point to be a
free function.

Also perform some cleanups in ModuleTranslation internals.

Depends On D96774

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D96775
2021-02-16 18:42:52 +01:00
Alex Zinenko 1d6f08e61d [mlir] use new cmake targets in mlir-*-runner 2021-02-15 15:04:00 +01:00
Alex Zinenko 176379e0c8 [mlir] Use the interface-based translation for LLVM "intrinsic" dialects
Port the translation of five dialects that define LLVM IR intrinsics
(LLVMAVX512, LLVMArmNeon, LLVMArmSVE, NVVM, ROCDL) to the new dialect
interface-based mechanism. This allows us to remove individual translations
that were created for each of these dialects and just use one common
MLIR-to-LLVM-IR translation that potentially supports all dialects instead,
based on what is registered and including any combination of translatable
dialects. This removal was one of the main goals of the refactoring.

To support the addition of GPU-related metadata, the translation interface is
extended with the `amendOperation` function that allows the interface
implementation to post-process any translated operation with dialect attributes
from the dialect for which the interface is implemented regardless of the
operation's dialect. This is currently applied to "kernel" functions, but can
be used to construct other metadata in dialect-specific ways without
necessarily affecting operations.

Depends On D96591, D96504

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D96592
2021-02-15 14:43:07 +01:00
Fangrui Song 3643828b51 [CMake][mlir] Fix mlir-linalg-ods-gen/CMakeLists.txt after D96645 2021-02-13 14:16:38 -08:00
daquexian 6e31a6b7c2 fix linalg ods gen cross compiling like other gen executables
Signed-off-by: daquexian <daquexian566@gmail.com>

Reviewed By: vinograd47

Differential Revision: https://reviews.llvm.org/D96645
2021-02-13 19:17:46 +00:00
Praveen Narayanan a65fb1916c Add a "kind" attribute to ContractionOp and OuterProductOp.
Currently, vector.contract joins the intermediate result and the accumulator
argument (of ranks K) using summation. We desire more joining operations ---
such as max --- to help vector.contract express reductions. This change extends
Vector_ContractionOp to take an optional attribute (called "kind", of enum type
CombiningKind) specifying the joining operation to be add/mul/min/max for int/fp
, and and/or/xor for int only. By default this attribute has value "add".

To implement this we also need to extend vector.outerproduct, since
vector.contract gets transformed to vector.outerproduct (and that to
vector.fma). The extension for vector.outerproduct is also an optional kind
attribute that uses the same enum type and possible values. The default is
"add". In case of max/min we transform vector.outerproduct to a combination of
compare and select.

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D93280
2021-02-12 20:23:59 +00:00
Mehdi Amini aa4e466caa [mlir][Linalg] Improve region support in Linalg ops
This revision takes advantage of the newly extended `ref` directive in assembly format
to allow better region handling for LinalgOps. Specifically, FillOp and CopyOp now build their regions explicitly which allows retiring older behavior that relied on specific op knowledge in both lowering to loops and vectorization.

This reverts commit 3f22547fd1 and reland 973e133b76 with a workaround for
a gcc bug that does not accept lambda default parameters:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59949

Differential Revision: https://reviews.llvm.org/D96598
2021-02-12 19:11:24 +00:00
Mehdi Amini 3f22547fd1 Revert "[mlir][Linalg] Improve region support in Linalg ops."
This reverts commit 973e133b76.

It triggers an issue in gcc5 that require investigation, the build is
broken with:

/tmp/ccdpj3B9.s: Assembler messages:
/tmp/ccdpj3B9.s:5821: Error: symbol `_ZNSt17_Function_handlerIFvjjEUljjE2_E9_M_invokeERKSt9_Any_dataOjS6_' is already defined
/tmp/ccdpj3B9.s:5860: Error: symbol `_ZNSt14_Function_base13_Base_managerIUljjE2_E10_M_managerERSt9_Any_dataRKS3_St18_Manager_operation' is already defined
2021-02-12 18:15:51 +00:00
Alex Zinenko 66900b3eae [mlir] Use dialect interfaces to translate OpenMP dialect to LLVM IR
Migrate the translation of the OpenMP dialect operations to LLVM IR to the new
dialect-based mechanism.

Depends On D96503

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D96504
2021-02-12 18:37:47 +01:00
Alex Zinenko b77bac0572 [mlir] Introduce dialect interfaces for translation to LLVM IR
The existing approach to translation to the LLVM IR relies on a single
translation supporting the base LLVM dialect, extensible through inheritance to
support intrinsic-based dialects also derived from LLVM IR such as NVVM and
AVX512. This approach does not scale well as it requires additional
translations to be created for each new intrinsic-based dialect and does not
allow them to mix in the same module, contrary to the rest of the MLIR
infrastructure. Furthermore, OpenMP translation ingrained itself into the main
translation mechanism.

Start refactoring the translation to LLVM IR to operate using dialect
interfaces. Each dialect that contains ops translatable to LLVM IR can
implement the interface for translating them, and the top-level translation
driver can operate on interfaces without knowing about specific dialects.
Furthermore, the delayed dialect registration mechanism allows one to avoid a
dependency on LLVM IR in the dialect that is translated to it by implementing
the translation as a separate library and only registering it at the client
level.

This change introduces the new mechanism and factors out the translation of the
"main" LLVM dialect. The remaining dialects will follow suit.

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D96503
2021-02-12 17:49:44 +01:00
Nicolas Vasilache 973e133b76 [mlir][Linalg] Improve region support in Linalg ops.
This revision takes advantage of the newly extended `ref` directive in assembly format
to allow better region handling for LinalgOps. Specifically, FillOp and CopyOp now build their regions explicitly which allows retiring older behavior that relied on specific op knowledge in both lowering to loops and vectorization.

Differential Revision: https://reviews.llvm.org/D96598
2021-02-12 14:51:03 +00:00
Alex Zinenko 0881a4f1bf [mlir] make ModuleTranslation mapping fields private
ModuleTranslation contains multiple fields that keep track of the mappings
between various MLIR and LLVM IR components. The original ModuleTranslation
extension model was based on inheritance, with these fields being protected and
thus accessible in the ModuleTranslation and derived classes. The
inheritance-based model doesn't scale to translation of more than one derived
dialect and will be progressively replaced with a more flexible one based on
dialect interfaces and a translation state that is separate from
ModuleTranslation. This change prepares the replacement by making the mappings
private and providing public methods to access them.

Depends On D96436

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D96437
2021-02-11 14:50:49 +01:00
Alex Zinenko 9a08f760fe [mlir] Make JitRunnerMain main take a DialectRegistry
Historically, JitRunner has been registering all available dialects with the
context and depending on them without the real need. Make it take a registry
that contains only the dialects that are expected in the input and stop linking
in all dialects.

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D96436
2021-02-11 14:50:48 +01:00
Alex Zinenko 2996a8d675 [mlir] avoid exposing mutable DialectRegistry from MLIRContext
MLIRContext allows its users to access directly to the DialectRegistry it
contains. While sometimes useful for registering additional dialects on an
already existing context, this breaks the encapsulation by essentially giving
raw accesses to a part of the context's internal state. Remove this mutable
access and instead provide a method to append a given DialectRegistry to the
one already contained in the context. Also provide a shortcut mechanism to
construct a context from an already existing registry, which seems to be a
common use case in the wild. Keep read-only access to the registry contained in
the context in case it needs to be copied or used for constructing another
context.

With this change, DialectRegistry is no longer concerned with loading the
dialects and deciding whether to invoke delayed interface registration. Loading
is concentrated in the MLIRContext, and the functionality of the registry
better reflects its name.

Depends On D96137

Reviewed By: mehdi_amini

Differential Revision: https://reviews.llvm.org/D96331
2021-02-10 12:07:34 +01:00
Andrew Pritchard 018645b81b Fix side-effect detection in LLVMIRIntrinsicGen.
Previously it reported an op had side-effects iff it declared that it
didn't have any side-effects.  This had the undesirable result that
canonicalization would always delete any intrinsic calls that did memory
stores and returned void.

Reviewed By: ftynse, mehdi_amini

Differential Revision: https://reviews.llvm.org/D96369
2021-02-10 00:48:16 +00:00
River Riddle 6e3292b0b7 [mlir][OpFormatGen] Refactor `type_ref` into a more general `ref` directive
This allows for referencing nearly every component of an operation from within a custom directive.

It also fixes a bug with the current type_ref implementation, PR48478

Differential Revision: https://reviews.llvm.org/D96189
2021-02-09 14:33:48 -08:00
River Riddle b9c876bd7e [mlir] Add initial support for an alias analysis framework in MLIR
This revision adds a new `AliasAnalysis` class that represents the main alias analysis interface in MLIR. The purpose of this class is not to hold the aliasing logic itself, but to provide an interface into various different alias analysis implementations. As it evolves this should allow for users to plug in specialized alias analysis implementations for their own needs, and have them immediately usable by other analyses and transformations.

This revision also adds an initial simple generic alias, LocalAliasAnalysis, that provides support for performing stateless local alias queries between values. This class is similar in scope to LLVM's BasicAA.

Differential Revision: https://reviews.llvm.org/D92343
2021-02-09 14:21:27 -08:00
Lei Zhang 4c640e49c9 [mlir][linalg] Verify indexing map required attributes
Indexing maps for named ops can reference attributes so that
we can synthesize the indexing map dynamically. This supports
cases like strides for convolution ops. However, it does cause
an issue: now the indexing_maps() function call is dependent
on those attributes.

Linalg ops inherit LinalgOpInterfaceTraits, which calls
verifyStructuredOpInterface() to verify the interface.
verifyStructuredOpInterface() further calls indexing_maps().
Note that trait verification is done before the op itself,
where ODS generates the verification for those attributes.
So we can have indexing_maps() referencing non-existing or
invalid attribute, before the ODS-generated verification
kick in.

There isn't a dependency handling mechansim for traits.
This commit adds new interface methods to query whether an
op hasDynamicIndexingMaps() and then perform
verifyIndexingMapRequiredAttributes() in
verifyStructuredOpInterface() to handle the dependency issue.

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D96297
2021-02-09 08:48:29 -05:00
Tres Popp c2c83e97c3 Revert "Revert "Reorder MLIRContext location in BuiltinAttributes.h""
This reverts commit 511dd4f438 along with
a couple fixes.

Original message:
Now the context is the first, rather than the last input.

This better matches the rest of the infrastructure and makes
it easier to move these types to being declaratively specified.

Phabricator: https://reviews.llvm.org/D96111
2021-02-08 10:39:58 +01:00
Tres Popp 511dd4f438 Revert "Reorder MLIRContext location in BuiltinAttributes.h"
This reverts commit 7827753f98.
2021-02-08 09:32:42 +01:00
Tres Popp 7827753f98 Reorder MLIRContext location in BuiltinAttributes.h
Now the context is the first, rather than the last input.

This better matches the rest of the infrastructure and makes
it easier to move these types to being declaratively specified.

Differential Revision: https://reviews.llvm.org/D96111
2021-02-08 09:28:09 +01:00
River Riddle e21adfa32d [mlir] Mark LogicalResult as LLVM_NODISCARD
This makes ignoring a result explicit by the user, and helps to prevent accidental errors with dropped results. Marking LogicalResult as no discard was always the intention from the beginning, but got lost along the way.

Differential Revision: https://reviews.llvm.org/D95841
2021-02-04 15:10:10 -08:00
Lei Zhang 63dc26450b Revert "[mlir][ODS] Use StringLiteral instead of StringRef when applicable"
This reverts commit 953086ddbb because
it breaks GCC 5 build:

  error: could not convert '(const char*)""' from 'const char*' to 'llvm::StringLiteral'
     static ::llvm::StringLiteral getDialectNamespace() { return ""; }
2021-02-04 13:59:37 -05:00
Vladislav Vinogradov 953086ddbb [mlir][ODS] Use StringLiteral instead of StringRef when applicable
Use `StringLiteral` for function return type if it is known to return
constant string literals only.

This will make it visible to API users, that such values can be safely
stored, since they refers to constant data, which will never be deallocated.

`StringRef` is general is not safe to store for a long term,
since it might refer to temporal data allocated in heap.

Reviewed By: mehdi_amini, bkramer

Differential Revision: https://reviews.llvm.org/D95945
2021-02-04 17:35:15 +00:00
Nicolas Vasilache e4a503a26d [mlir][Linalg] Introduce a ContractionOpInterface
This revision takes advantage of recent extensions to vectorization to refactor contraction detection into a bona fide Linalg interface.
The mlit-linalg-ods-gen parser is extended to support adding such interfaces.
The detection that was originally enabling vectorization is refactored to serve as both a test on a generic LinalgOp as well as to verify ops that declare to conform to that interface.

This is plugged through Linalg transforms and strategies but it quickly becomes evident that the complexity and rigidity of the C++ class based templating does not pay for itself.
Therefore, this revision changes the API for vectorization patterns to get rid of templates as much as possible.
Variadic templates are relegated to the internals of LinalgTransformationFilter as much as possible and away from the user-facing APIs.

It is expected other patterns / transformations will follow the same path and drop as much C++ templating as possible from the class definition.

Differential revision: https://reviews.llvm.org/D95973
2021-02-04 16:53:24 +00:00
Nicolas Vasilache 1029c82c1e [mlir][Linalg] NFC - Extract a standalone LinalgInterfaces
This separation improves the layering and paves the way for more interfaces coming up in the future.

Differential revision: https://reviews.llvm.org/D95941
2021-02-04 07:19:38 +00:00
Christian Sigg 8d73bee4ed [mlir] Add gpu async integration test.
Reviewed By: herhut

Differential Revision: https://reviews.llvm.org/D94421
2021-02-03 21:45:23 +01:00
Christian Sigg 4a35941dbd Delete CUDA context after linking device code.
Differential Revision: https://reviews.llvm.org/D95857
2021-02-03 20:10:12 +01:00
Christian Sigg 8a43ec7faa Set GPU context before {cu,hip}MemHostRegister.
Differential Revision: https://reviews.llvm.org/D95856
2021-02-03 20:00:36 +01:00
Vladislav Vinogradov f1bdf9fa9b [mlir][NFC] Use explicit `mlir` namespace in generated code
This makes the generated code independent from actual namespace of its users.

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D95520
2021-02-02 18:24:43 +00:00
MaheshRavishankar 342d4662e1 [mlir] Add custom directive hooks for printing mixed integer or value operands.
Add printer and parser hooks for a custom directive that allows
parsing and printing of idioms that can represent a list of values
each of which is either an integer or an SSA value. For example in

`subview %source[%offset_0, 1] [4, %size_1] [%stride_0, 3]`

each of the list (which represents offset, size and strides) is a mix
of either statically know integer values or dynamically computed SSA
values. Since this is used in many places adding a custom directive to
parse/print this idiom allows using assembly format on operations
which use this idiom.

Differential Revision: https://reviews.llvm.org/D95773
2021-02-01 19:03:49 -08:00
Christian Sigg a4b7d52f3a [mlir] Fix missing null termination in cuLinkAddData argument.
Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D95679
2021-02-01 09:32:50 +01:00
MaheshRavishankar 98835e3d98 [mlir][Linalg] Enable TileAndFusePattern to work with tensors.
Differential Revision: https://reviews.llvm.org/D94531
2021-01-28 14:13:01 -08:00
Christian Sigg 5bdc771fc9 [mlir] Make cuda/rocm-runtime-wrappers not depend on LLVMSupport.
Depending on the headers only is fine, but we do not want to use any symbols from LLVMSupport. If we do, static registration of cl options is linked in as well, and loading multiple such libraries in the cuda/rocm-runner fails because the same cl options are registered multiple times.

The cuda/rocm-runners also depend on LLVMSupport, so one could think that already loading a single such library would fail. It does not because the map of cl options is not shared between the runner and the loaded libraries (but it is shared across all loaded libraries, presumably because it has external linkage, in contrast to the static registration which has internal linkage).

This change is a preparation step for dynamically loading the mlir_async_runtime.so and cuda-runtime-wrappers.so in the same test. The async runtime depends on LLVMSupport in a more fundamental way (llvm::ThreadPool), and as explained above there can only be one.

This change also switches to add_mlir_library to make it consistent with the other runner_utils libraries.

Reviewed By: herhut

Differential Revision: https://reviews.llvm.org/D95613
2021-01-28 17:25:01 +01:00
Christian Sigg 8262cd8a0e [mlir] Set CUDA/ROCm context before creating resources.
The current context is thread-local state, and in preparation of GPU async execution (on multiple threads) we need to set the context before calling API that create resources.

Reviewed By: herhut

Differential Revision: https://reviews.llvm.org/D94495
2021-01-26 19:07:06 +01:00
Stella Laurenzo fd226c9b02 [mlir][Python] Roll up of python API fixes.
* As discussed, fixes the ordering or (operands, results) -> (results, operands) in various `create` like methods.
* Fixes a syntax error in an ODS accessor method.
* Removes the linalg example in favor of a test case that exercises the same.
* Fixes FuncOp visibility to properly use None instead of the empty string and defaults it to None.
* Implements what was documented for requiring that trailing __init__ args `loc` and `ip` are keyword only.
* Adds a check to `InsertionPoint.insert` so that if attempting to insert past the terminator, an exception is raised telling you what to do instead. Previously, this would crash downstream (i.e. when trying to print the resultant module).
* Renames `_ods_build_default` -> `build_generic` and documents it.
* Removes `result` from the list of prohibited words and for single-result ops, defaults to naming the result `result`, thereby matching expectations and what is already implemented on the base class.
* This was intended to be a relatively small set of changes to be inlined with the broader support for ODS generating the most specific builder, but it spidered out once actually testing various combinations, so rolling up separately.

Differential Revision: https://reviews.llvm.org/D95320
2021-01-24 19:02:59 -08:00
River Riddle 29d420e0bf [mlir][OpFormatGen] Add support for anchoring optional groups with types
This revision adds support for using either operand or result types to anchor an optional group. It also removes the arbitrary restriction that type directives must refer to variables in the same group, which is overly limiting for a declarative format syntax.

Fixes PR#48784

Differential Revision: https://reviews.llvm.org/D95109
2021-01-22 12:07:27 -08:00
Mehdi Amini 922b26cde4 Add Python bindings for the builtin dialect
This includes some minor customization for FuncOp and ModuleOp.

Differential Revision: https://reviews.llvm.org/D95022
2021-01-21 22:44:44 +00:00
Christian Sigg bd3a387ee7 Revert [mlir] Link mlir_runner_utils statically into cuda/rocm-runtime-wrappers (cf50f4f764)
There are cmake failures that I do not know how to fix.

Differential Revision: https://reviews.llvm.org/D95162
2021-01-21 22:38:59 +01:00
River Riddle 825c2b4a41 [mlir][OpFormatGen] Fix incorrect kind used for RegionsDirective
I attempted to write a test case for this, but the situations in which the kind is used for RegionDirective and ResultsDirective have zero overlap; meaning that there isn't a situation in which sharing the kind creates a conflict.

Differential Revision: https://reviews.llvm.org/D94988
2021-01-20 16:50:59 -08:00
Tobias Gysi 4c1eaf26ae [mlir] fix the rocm runtime wrapper to account for cuda / rocm api differences
The patch adapts the rocm runtime wrapper due to subtle differences between the cuda and the rocm/hip runtime api.

Reviewed By: csigg

Differential Revision: https://reviews.llvm.org/D95027
2021-01-20 18:48:32 +01:00
Christian Sigg cf50f4f764 [mlir] Link mlir_runner_utils statically into cuda/rocm-runtime-wrappers.
The runtime-wrappers depend on LLVMSupport, pulling in static initialization code (e.g. command line arguments). Dynamically loading multiple such libraries results in ODR violoations.

So far this has not been an issue, but in D94421, I would like to load both the async-runtime and the cuda-runtime-wrappers as part of a cuda-runner integration test. When doing this, code that asserts that an option category is only registered once fails (note that I've only experienced this in Google's bazel where the async-runtime depends on LLVMSupport, but a similar issue would happen in cmake if more than one runtime-wrapper starts to depend on LLVMSupport).

The underlying issue is that we have a mix of static and dynamic linking. If all dependencies were loaded as shared objects (i.e. if LLVMSupport was linked dynamically to the runtime wrappers), each dependency would only get loaded once. However, linking dependencies dynamically would require special attention to paths (one could dynamically load the dependencies first given explicit paths). The simpler approach seems to be to link all dependencies statically into a single shared object.

This change basically applies the same logic that we have in the c_runner_utils: we have a shared object target that can be loaded dynamically, and we have a static library target that can be linked to other runtime-wrapper shared object targets.

Reviewed By: herhut

Differential Revision: https://reviews.llvm.org/D94399
2021-01-20 12:10:16 +01:00
Stella Laurenzo 894d88a759 [mlir][python] Add facility for extending generated python ODS.
* This isn't exclusive with other mechanisms for more ODS centric op definitions, but based on discussions, we feel that we will always benefit from a python escape hatch, and that is the most natural way to write things that don't fit the mold.
* I suspect this facility needs further tweaking, and once it settles, I'll document it and add more tests.
* Added extensions for linalg, since it is unusable without them and continued to evolve my e2e example.

Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D94752
2021-01-19 13:20:26 -08:00
Stella Laurenzo 71b6b010e6 [mlir][python] Factor out standalone OpView._ods_build_default class method.
* This allows us to hoist trait level information for regions and sized-variadic to class level attributes (_ODS_REGIONS, _ODS_OPERAND_SEGMENTS, _ODS_RESULT_SEGMENTS).
* Eliminates some splicey python generated code in favor of a native helper for it.
* Makes it possible to implement custom, variadic and region based builders with one line of python, without needing to manually code access to the segment attributes.
* Needs follow-on work for region based callbacks and support for SingleBlockImplicitTerminator.
* A follow-up will actually add ODS support for generating custom Python builders that delegate to this new method.
* Also includes the start of an e2e sample for constructing linalg ops where this limitation was discovered (working progressively through this example and cleaning up as I go).

Differential Revision: https://reviews.llvm.org/D94738
2021-01-19 09:29:57 -08:00
Mehdi Amini 7dadcd02d6 Fix a few GCC compiler warnings (NFC) 2021-01-19 06:00:04 +00:00
Vladislav Vinogradov aca240b4f6 [mlir] Fix cross-compilation (Linalg ODS gen)
Use cross-compilation approach for `mlir-linalg-ods-gen` application
similar to TblGen tools.

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D94598
2021-01-18 11:57:55 +01:00
Lei Zhang 0acc260b57 [mlir][linalg] Support generating builders for named op attributes
This commit adds support to generate an additional builder for
each named op that has attributes. This gives better experience
when creating the named ops.

Along the way adds support for i64.

Reviewed By: hanchung

Differential Revision: https://reviews.llvm.org/D94733
2021-01-15 09:00:30 -05:00
River Riddle 93592b726c [mlir][OpFormatGen] Format enum attribute cases as keywords when possible
In the overwhelmingly common case, enum attribute case strings represent valid identifiers in MLIR syntax. This revision updates the format generator to format as a keyword in these cases, removing the need to wrap values in a string. The parser still retains the ability to parse the string form, but the printer will use the keyword form when applicable.

Differential Revision: https://reviews.llvm.org/D94575
2021-01-14 11:35:49 -08:00
River Riddle 00a61b327d [mlir][ODS] Add new RangedTypesMatchWith operation predicate
This is a variant of TypesMatchWith that provides support for variadic arguments. This is necessary because ranges generally can't use the default operator== comparators for checking equality.

Differential Revision: https://reviews.llvm.org/D94574
2021-01-14 11:35:49 -08:00
Lei Zhang 6b9fa8a50d [mlir][linalg] Add docstring support for named op spec
Depends on D94335

Reviewed By: nicolasvasilache, hanchung

Differential Revision: https://reviews.llvm.org/D94548
2021-01-14 09:57:56 -05:00
Lei Zhang 3bc7555ffa [mlir][linalg] Use attributes in named ops' indexing maps
This commit adds support for parsing attribute uses in indexing
maps. These attribute uses are represented as affine symbols in
the resultant indexing maps because we can only know their
concrete value (which are coming from op attributes and are
constants) for specific op instances. The `indxing_maps()`
calls are synthesized to read these attributes and create affine
constants to replace the placeholder affine symbols and simplify.

Depends on D94240

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D94335
2021-01-13 10:04:49 -05:00