Commit Graph

5 Commits

Author SHA1 Message Date
Rahul Joshi f8d3755f00 [MLIR][memref] Fix findDealloc() to handle > 1 dealloc for the given alloc.
- Change findDealloc() to return Optional<Operation *> and return None if > 1
  dealloc is associated with the given alloc.
- Add findDeallocs() to return all deallocs associated with the given alloc.
- Fix current uses of findDealloc() to bail out if > 1 dealloc is found.

Differential Revision: https://reviews.llvm.org/D106456
2021-07-22 09:34:19 -07:00
Lei Zhang 0deeaaca39 [mlir] Move memref.subview patterns to MemRef/Transforms/
These patterns have been used as a prerequisite step for lowering
to SPIR-V. But they don't involve SPIR-V dialect ops; they are
pure memref/vector op transformations. Given now we have a dedicated
MemRef dialect, moving them to Memref/Transforms/, which is a more
suitable place to host them, to allow used by others.

This commit just moves code around and renames patterns/passes
accordingly. CMakeLists.txt for existing MemRef libraries are
also improved along the way.

Reviewed By: mravishankar

Differential Revision: https://reviews.llvm.org/D100326
2021-04-12 16:38:22 -04:00
Alexander Belyaev 465b9a4a33 Revert "Revert "[mlir] Introduce CloneOp and adapt test cases in BufferDeallocation.""
This reverts commit 883912abe6.
2021-03-31 09:49:09 +02:00
Alexander Belyaev 883912abe6 Revert "[mlir] Introduce CloneOp and adapt test cases in BufferDeallocation."
This reverts commit 06b03800f3.
Until some kind of support for region args is added.
2021-03-29 12:47:59 +02:00
Julian Gross 06b03800f3 [mlir] Introduce CloneOp and adapt test cases in BufferDeallocation.
Add a new clone operation to the memref dialect. This operation implicitly
copies data from a source buffer to a new buffer. In contrast to the linalg.copy
operation, this operation does not accept a target buffer as an argument.
Instead, this operation performs a conceptual allocation which does not need to
be performed manually.

Furthermore, this operation resolves the dependency from the linalg-dialect
in the BufferDeallocation pass. In addition, we also extended the canonicalization
patterns to fold clone operations. The copy removal pass has been removed.

Differential Revision: https://reviews.llvm.org/D99172
2021-03-29 10:19:10 +02:00