* Declare arguments/results with `let` statements.
* Rename `transp` to `permutation`.
* Change type of `transp` from `I64ArrayAttr` to `DenseI64ArrayAttr`
(provides direct access to `ArrayRef<int64_t>` instead of `ArrayAttr`).
These rely on the `ValueBounds` interace and its utility function to
compute constant bounds. This allows us to optimize `linalg.index`
values cast to integer types.
Reviewed By: antiagainst
Differential Revision: https://reviews.llvm.org/D149538
This commutes the extension (`arith.extsi`, `arith.extui`) over the
following vector ops: `vector.broadcast`, `vector.shape_cast`,
`vector.transpose`, `vector.flat_transpose`.
I focused on these as I saw them getting created by vector unroll
patterns. Maybe except `vector.flat_transpose`.
Reviewed By: antiagainst
Differential Revision: https://reviews.llvm.org/D149534
Allow to commute extension ops over `vector.insertelement` and
`vector.insert_strided_slice`.
Reviewed By: antiagainst
Differential Revision: https://reviews.llvm.org/D149509
Add a new wraper type that represents either of `ExtSIOp` or `ExtUIOp`.
This is to simplify the code by using a single type, so that we do not
have to use templates or branching to handle both extension kinds.
Reviewed By: antiagainst
Differential Revision: https://reviews.llvm.org/D149485
This enabled more optimization opportunities by moving
zero/sign-extension closer to the use.
Reviewed By: antiagainst
Differential Revision: https://reviews.llvm.org/D149282
This moves zero/sign-extension ops closer to their use and exposes more
narrowing optimization opportunities.
Reviewed By: antiagainst
Differential Revision: https://reviews.llvm.org/D149233
This pass reduces the logical complexity of arith ops by choosing
narrowest supported operand bitwidth. On some targets like mobile GPUs,
narrower bitwidths also bring better runtime performance.
The first batch of rewrites handles a simple case of `arith.sitofp`
and `arith.uitofp` with zero/sign-extended inputs. In future revisions,
I plan to extend it with the following:
- Propagating sign/zero-extensions through bit-pattern-preserving ops,
e.g., vector transpose, broadcast, insertions/extractions.
- Handling `linalg.index` using the `ValueBounds` interface.
- Handling more arith ops.
Reviewed By: springerm, antiagainst
Differential Revision: https://reviews.llvm.org/D149118
