27 Commits

Author SHA1 Message Date
Kazu Hirata
0925d7572a
[mlir] Remove unused includes (NFC) (#150266)
These are identified by misc-include-cleaner.  I've filtered out those
that break builds.  Also, I'm staying away from llvm-config.h,
config.h, and Compiler.h, which likely cause platform- or
compiler-specific build failures.
2025-07-23 15:18:53 -07:00
Maksim Levental
dce6679cf5
[mlir][NFC] update mlir/Dialect create APIs (16/n) (#149922)
See https://github.com/llvm/llvm-project/pull/147168 for more info.
2025-07-21 19:57:30 -04:00
Slava Zakharin
6ce86538c1
[mlir][cf] Preserve branch weights during cf.cond_br canonicalization. (#144822) 2025-06-19 10:09:10 -07:00
Nikita Popov
e692af8596
[MLIR] Update APInt construction to correctly set isSigned/implicitTrunc (#110466)
This fixes all the places in MLIR that hit the new assertion added in
#106524, in preparation for enabling it by default. That is, cases where
the value passed to the APInt constructor is not an N-bit
signed/unsigned integer, where N is the bit width and signedness is
determined by the isSigned flag.

The fixes either set the correct value for isSigned, or set the
implicitTrunc flag to retain the old behavior. I've left TODOs for the
latter case in some places, where I think that it may be worthwhile to
stop doing implicit truncation in the future.

Note that the assertion is currently still disabled by default, so this
patch is mostly NFC.

This is just the MLIR changes split off from
https://github.com/llvm/llvm-project/pull/80309.
2024-10-14 15:01:05 +02:00
McCowan Zhang
a159b36724
Bufferization with ControlFlow Asserts (#95868)
Fixed incorrect bufferization interaction with cf.assert
- reordered bufferization condition checking
- fixed hasNeitherAllocateNorFreeSideEffect checking bug
- implemented memory interface for cf.assert

---------

Co-authored-by: McCowan Zhang <mccowan.z@ssi.samsung.com>
2024-06-26 08:00:39 +02:00
Ramkumar Ramachandra
0fb216fb2f
mlir/MathExtras: consolidate with llvm/MathExtras (#95087)
This patch is part of a project to move the Presburger library into
LLVM.
2024-06-11 23:00:02 +01:00
Keyi Zhang
7e87d03b45
[MLIR][CF] Fix cf.switch parsing with result numbers (#87658)
This PR should fix the parsing bug reported in
https://github.com/llvm/llvm-project/issues/87430. It allows using
result number as the `cf.switch` operand.
2024-04-04 21:32:47 +02:00
Justin Fargnoli
35d55f2894
[NFC][mlir] Reorder declarePromisedInterface() operands (#86628)
Reorder the template operands of `declarePromisedInterface()` to match
`declarePromisedInterfaces()`.
2024-03-27 10:30:17 -07:00
Justin Fargnoli
513cdb8222
[mlir] Declare promised interfaces for all dialects (#78368)
This PR adds promised interface declarations for all interfaces declared
in `InitAllDialects.h`.

Promised interfaces allow a dialect to declare that it will have an
implementation of a particular interface, crashing the program if one
isn't provided when the interface is used.
2024-03-15 20:23:20 -07:00
Matthias Springer
5fcf907b34
[mlir][IR] Rename "update root" to "modify op" in rewriter API (#78260)
This commit renames 4 pattern rewriter API functions:
* `updateRootInPlace` -> `modifyOpInPlace`
* `startRootUpdate` -> `startOpModification`
* `finalizeRootUpdate` -> `finalizeOpModification`
* `cancelRootUpdate` -> `cancelOpModification`

The term "root" is a misnomer. The root is the op that a rewrite pattern
matches against
(https://mlir.llvm.org/docs/PatternRewriter/#root-operation-name-optional).
A rewriter must be notified of all in-place op modifications, not just
in-place modifications of the root
(https://mlir.llvm.org/docs/PatternRewriter/#pattern-rewriter). The old
function names were confusing and have contributed to various broken
rewrite patterns.

Note: The new function names use the term "modify" instead of "update"
for consistency with the `RewriterBase::Listener` terminology
(`notifyOperationModified`).
2024-01-17 11:08:59 +01:00
Justin Fargnoli
b43c50490c
[mlir] Declare promised interfaces for the ConvertToLLVM extension (#76341)
This PR adds promised interface declarations for
`ConvertToLLVMPatternInterface` in all the dialects that support the
`ConvertToLLVM` dialect extension.

Promised interfaces allow a dialect to declare that it will have an
implementation of a particular interface, crashing the program if one
isn't provided when the interface is used.
2024-01-08 20:19:18 -08:00
Ivan Butygin
5dce74817b [mlir][ub] Add poison support to CommonFolders.h
Return poison from foldBinary/unary if argument(s) is poison. Add ub dialect as dependency to affected dialects (arith, math, spirv, shape).
Add poison materialization to dialects. Add tests for some ops from each dialect.
Not all affected ops are covered as it will involve a huge copypaste.

Differential Revision: https://reviews.llvm.org/D159013
2023-09-07 12:30:29 +02:00
Tres Popp
c1fa60b4cd [mlir] Update method cast calls to function calls
The MLIR classes Type/Attribute/Operation/Op/Value support
cast/dyn_cast/isa/dyn_cast_or_null functionality through llvm's doCast
functionality in addition to defining methods with the same name.
This change begins the migration of uses of the method to the
corresponding function call as has been decided as more consistent.

Note that there still exist classes that only define methods directly,
such as AffineExpr, and this does not include work currently to support
a functional cast/isa call.

Context:

* https://mlir.llvm.org/deprecation/ at "Use the free function variants for dyn_cast/cast/isa/…"
* Original discussion at https://discourse.llvm.org/t/preferred-casting-style-going-forward/68443

Implementation:
This follows a previous patch that updated calls
`op.cast<T>()-> cast<T>(op)`. However some cases could not handle an
unprefixed `cast` call due to occurrences of variables named cast, or
occurring inside of class definitions which would resolve to the method.
All C++ files that did not work automatically with `cast<T>()` are
updated here to `llvm::cast` and similar with the intention that they
can be easily updated after the methods are removed through a
find-replace.

See https://github.com/llvm/llvm-project/compare/main...tpopp:llvm-project:tidy-cast-check
for the clang-tidy check that is used and then update printed
occurrences of the function to include `llvm::` before.

One can then run the following:
```
ninja -C $BUILD_DIR clang-tidy

run-clang-tidy -clang-tidy-binary=$BUILD_DIR/bin/clang-tidy -checks='-*,misc-cast-functions'\
                 -export-fixes /tmp/cast/casts.yaml mlir/*\
                 -header-filter=mlir/ -fix

rm -rf $BUILD_DIR/tools/mlir/**/*.inc
```

Differential Revision: https://reviews.llvm.org/D150348
2023-05-12 11:21:30 +02:00
Matthias Springer
42c31d8302 [mlir][IR] Clean up mergeBlockBefore and mergeBlocks
* `RewriterBase::mergeBlocks` is simplified: it is implemented in terms of `mergeBlockBefore`.
* The signature of `mergeBlockBefore` is consistent with other API (such as `inlineRegionBefore`): an overload for a `Block::iterator` is added.
* Additional safety checks are added to `mergeBlockBefore`: detect cases where the resulting IR could be invalid (no more `dropAllUses`) or partly unreachable (likely a case of incorrect API usage).
* Rename `mergeBlockBefore` to `inlineBlockBefore`.

Differential Revision: https://reviews.llvm.org/D144969
2023-03-06 13:46:08 +01:00
Kazu Hirata
9e5d2495ac Use APInt::isOne instead of APInt::isOneValue (NFC)
Note that isOneValue has been soft-deprecated in favor of isOne.
2023-02-19 23:06:36 -08:00
Jeff Niu
4d67b27817 [mlir] Add operations to BlockAndValueMapping and rename it to IRMapping
The patch adds operations to `BlockAndValueMapping` and renames it to `IRMapping`. When operations are cloned, old operations are mapped to the cloned operations. This allows mapping from an operation to a cloned operation. Example:

```
Operation *opWithRegion = ...
Operation *opInsideRegion = &opWithRegion->front().front();

IRMapping map
Operation *newOpWithRegion = opWithRegion->clone(map);
Operation *newOpInsideRegion = map.lookupOrNull(opInsideRegion);
```

Migration instructions:
All includes to `mlir/IR/BlockAndValueMapping.h` should be replaced with `mlir/IR/IRMapping.h`. All uses of `BlockAndValueMapping` need to be renamed to `IRMapping`.

Reviewed By: rriddle, mehdi_amini

Differential Revision: https://reviews.llvm.org/D139665
2023-01-12 13:16:05 -08:00
Ramkumar Ramachandra
22426110c5 mlir/tblgen: use std::optional in generation
This is part of an effort to migrate from llvm::Optional to
std::optional. This patch changes the way mlir-tblgen generates .inc
files, and modifies tests and documentation appropriately. It is a "no
compromises" patch, and doesn't leave the user with an unpleasant mix of
llvm::Optional and std::optional.

A non-trivial change has been made to ControlFlowInterfaces to split one
constructor into two, relating to a build failure on Windows.

See also: https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716

Signed-off-by: Ramkumar Ramachandra <r@artagnon.com>

Differential Revision: https://reviews.llvm.org/D138934
2022-12-17 11:13:26 +01:00
Jakub Kuderski
abc362a107 [mlir][arith] Change dialect name from Arithmetic to Arith
Suggested by @lattner in https://discourse.llvm.org/t/rfc-define-precise-arith-semantics/65507/22.

Tested with:
`ninja check-mlir check-mlir-integration check-mlir-mlir-spirv-cpu-runner check-mlir-mlir-vulkan-runner check-mlir-examples`

and `bazel build --config=generic_clang @llvm-project//mlir:all`.

Reviewed By: lattner, Mogball, rriddle, jpienaar, mehdi_amini

Differential Revision: https://reviews.llvm.org/D134762
2022-09-29 11:23:28 -04:00
Kazu Hirata
0820c6ef60 [mlir] Don't include StringSwitch.h (NFC)
These files don't seem to use StringSwitch.
2022-09-18 23:09:40 -07:00
Kazu Hirata
6d5fc1e3d5 [mlir] Don't use Optional::getValue (NFC) 2022-06-20 23:20:25 -07:00
Mogball
e16d13322b [mlir] (NFC) Clean up bazel and CMake target names
All dialect targets in bazel have been named *Dialect and all dialect
targets in CMake have been named MLIR*Dialect.
2022-06-13 16:24:15 +00:00
Alexander Batashev
b34fb277df [mlir][cf] Implement missing SwitchOp::build function
Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D126594
2022-06-03 09:08:04 +03:00
Vitaly Buka
f735b3a2b0 [mlir] Prevent argStorage relocations
This fixes msan reports like https://reviews.llvm.org/P8285

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D124576
2022-04-29 11:09:32 -07:00
Chris Lattner
5dedf911de [AsmParser] Rework logic around "region argument parsing"
The asm parser had a notional distinction between parsing an
operand (like "%foo" or "%4#3") and parsing a region argument
(which isn't supposed to allow a result number like #3).

Unfortunately the implementation has two problems:

1) It didn't actually check for the result number and reject
   it.  parseRegionArgument and parseOperand were identical.
2) It had a lot of machinery built up around it that paralleled
   operand parsing.  This also was functionally identical, but
   also had some subtle differences (e.g. the parseOptional
   stuff had a different result type).

I thought about just removing all of this, but decided that the
missing error checking was important, so I reimplemented it with
a `allowResultNumber` flag on parseOperand.  This keeps the
codepaths unified and adds the missing error checks.

Differential Revision: https://reviews.llvm.org/D124470
2022-04-28 11:12:44 -07:00
Markus Böck
0c789db541 [mlir] Add support for operation-produced successor arguments in BranchOpInterface
This patch revamps the BranchOpInterface a bit and allows a proper implementation of what was previously `getMutableSuccessorOperands` for operations, which internally produce arguments to some of the block arguments. A motivating example for this would be an invoke op with a error handling path:
```
invoke %function(%0)
  label ^success ^error(%1 : i32)

^error(%e: !error, %arg0 : i32):
  ...
```
The advantages of this are that any users of `BranchOpInterface` can still argue over remaining block argument operands (such as `%1` in the example above), as well as make use of the modifying capabilities to add more operands, erase an operand etc.

The way this patch implements that functionality is via a new class called `SuccessorOperands`, which is now returned by `getSuccessorOperands`. It basically contains an `unsigned` denoting how many operator produced operands exist, as well as a `MutableOperandRange`, which are the usual forwarded operands we are used to. The produced operands are assumed to the first few block arguments, followed by the forwarded operands afterwards. The role of `SuccessorOperands` is to provide various utility functions to modify and query the successor arguments from a `BranchOpInterface`.

Differential Revision: https://reviews.llvm.org/D123062
2022-04-08 08:28:16 +02:00
Markus Böck
e13d23bc6c [mlir] Rename OpAsmParser::OperandType to OpAsmParser::UnresolvedOperand
I am not sure about the meaning of Type in the name (was it meant be interpreted as Kind?), and given the importance and meaning of Type in the context of MLIR, its probably better to rename it. Given the comment in the source code, the suggestion in the GitHub issue and the final discussions in the review, this patch renames the OperandType to UnresolvedOperand.

Fixes https://github.com/llvm/llvm-project/issues/54446

Differential Revision: https://reviews.llvm.org/D122142
2022-03-21 21:42:13 +01:00
River Riddle
ace01605e0 [mlir] Split out a new ControlFlow dialect from Standard
This dialect is intended to model lower level/branch based control-flow constructs. The initial set
of operations are: AssertOp, BranchOp, CondBranchOp, SwitchOp; all split out from the current
standard dialect.

See https://discourse.llvm.org/t/standard-dialect-the-final-chapter/6061

Differential Revision: https://reviews.llvm.org/D118966
2022-02-06 14:51:16 -08:00