Commit Graph

8 Commits

Author SHA1 Message Date
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
River Riddle
1b97cdf885 [mlir][IR][NFC] Move context/location parameters of builtin Type::get methods to the start of the parameter list
This better matches the rest of the infrastructure, is much simpler, and makes it easier to move these types to being declaratively specified.

Differential Revision: https://reviews.llvm.org/D93432
2020-12-17 13:01:36 -08:00
Haruki Imai
b2391d5f0d [MLIR] Normalize the results of normalizable operations
Memrefs with affine_map in the results of normalizable operation were
not normalized by `--normalize-memrefs` option. This patch normalizes
them.

Differential Revision: https://reviews.llvm.org/D88719
2020-12-03 19:34:07 +05:30
Stephen Neuendorffer
47df8c57e4 [MLIR] Updates around MemRef Normalization
The documentation for the NormalizeMemRefs pass and the associated MemRefsNormalizable
traits was confusing and not on the website.  This update clarifies the language
around the difference between a MemRef Type, an operation that accesses the value of
MemRef Type, and better documents the limitations of the current implementation.
This patch also includes some basic debugging information for the pass so people
might have a chance of figuring out why it doesn't work on their code.

Differential Revision: https://reviews.llvm.org/D88532
2020-10-01 21:11:41 -07:00
Haruki Imai
c1f8568031 [MLIR] Fix for updating function signature in normalizing memrefs
Normalizing memrefs failed when a caller of symbolic use in a function
can not be casted to `CallOp`. This patch avoids the failure by checking
the result of the casting. If the caller can not be casted to `CallOp`,
it is skipped.

Differential Revision: https://reviews.llvm.org/D87746
2020-09-25 22:56:56 +05:30
Alexandre E. Eichenberger
a14a2805b0 [MLIR] MemRef Normalization for Dialects
When dealing with dialects that will results in function calls to
external libraries, it is important to be able to handle maps as some
dialects may require mapped data.  Before this patch, the detection of
whether normalization can apply or not, operations are compared to an
explicit list of operations (`alloc`, `dealloc`, `return`) or to the
presence of specific operation interfaces (`AffineReadOpInterface`,
`AffineWriteOpInterface`, `AffineDMAStartOp`, or `AffineDMAWaitOp`).

This patch add a trait, `MemRefsNormalizable` to determine if an
operation can have its `memrefs` normalized.

This trait can be used in turn by dialects to assert that such
operations are compatible with normalization of `memrefs` with
nontrivial memory layout specification. An example is given in the
literal tests.

Differential Revision: https://reviews.llvm.org/D86236
2020-08-27 20:26:59 +05:30
avarmapml
6d4f7801b1 [MLIR] Support for ReturnOps in memref map layout normalization
-- This commit handles the returnOp in memref map layout normalization.
-- An initial filter is applied on FuncOps which helps us know which functions can be
   a suitable candidate for memref normalization which doesn't lead to invalid IR.
-- Handles memref map normalization for external function assuming the external function
   is normalizable.

Differential Revision: https://reviews.llvm.org/D85226
2020-08-13 19:10:47 +05:30
Abhishek Varma
76d07503f0 [MLIR] Introduce inter-procedural memref layout normalization
-- Introduces a pass that normalizes the affine layout maps to the identity layout map both within and across functions by rewriting function arguments and call operands where necessary.
-- Memref normalization is now implemented entirely in the module pass '-normalize-memrefs' and the limited intra-procedural version has been removed from '-simplify-affine-structures'.
-- Run using -normalize-memrefs.
-- Return ops are not handled and would be handled in the subsequent revisions.

Signed-off-by: Abhishek Varma <abhishek.varma@polymagelabs.com>

Differential Revision: https://reviews.llvm.org/D84490
2020-07-30 18:12:56 +05:30