7 Commits

Author SHA1 Message Date
Nicolas Vasilache
34ff857350 [mlir][X86Vector] Add specialized vector.transpose lowering patterns for AVX2
This revision adds an implementation of 2-D vector.transpose for 4x8 and 8x8 for
AVX2 and surfaces it to the Linalg level of control.

Reviewed By: dcaballe

Differential Revision: https://reviews.llvm.org/D113347
2021-11-11 07:33:31 +00:00
Mogball
a54f4eae0e [MLIR] Replace std ops with arith dialect ops
Precursor: https://reviews.llvm.org/D110200

Removed redundant ops from the standard dialect that were moved to the
`arith` or `math` dialects.

Renamed all instances of operations in the codebase and in tests.

Reviewed By: rriddle, jpienaar

Differential Revision: https://reviews.llvm.org/D110797
2021-10-13 03:07:03 +00:00
Aart Bik
e5c8fc776f [mlir][vector] canonicalize unmasked gather/scatter/compress/expand directly into l/s
With the new vector.load/store operations, there is no need to go through
unmasked transfer operations (which will canonicalized to l/s anyway).

Reviewed By: dcaballe

Differential Revision: https://reviews.llvm.org/D98056
2021-03-05 14:23:50 -08:00
Aart Bik
df5ccf5a94 [mlir][vector] add higher dimensional support to gather/scatter
Similar to mask-load/store and compress/expand, the gather and
scatter operation now allow for higher dimension uses. Note that
to support the mixed-type index, the new syntax is:
   vector.gather %base [%i,%j] [%kvector] ....
The first client of this generalization is the sparse compiler,
which needs to define scatter and gathers on dense operands
of higher dimensions too.

Reviewed By: bixia

Differential Revision: https://reviews.llvm.org/D97422
2021-02-26 14:20:19 -08:00
Aart Bik
6728af16cf [mlir][vector] modified scatter/gather syntax, pass_thru mandatory
This change makes the scatter/gather syntax more consistent with
the syntax of all the other memory operations in the Vector dialect
(order of types, use of [] for index, etc.). This will make the MLIR
code easier to read. In addition, the pass_thru parameter of the
gather has been made mandatory (there is very little benefit in
using the implicit "undefined" values).

Reviewed By: nicolasvasilache

Differential Revision: https://reviews.llvm.org/D94352
2021-01-09 11:41:37 -08:00
Aart Bik
a57def30f5 [mlir][vector] generalized masked l/s and compressed l/s with indices
Adding the ability to index the base address brings these operations closer
to the transfer read and write semantics (with lowering advantages), ensures
more consistent use in vector MLIR code (easier to read), and reduces the
amount of code duplication to lower memrefs into base addresses considerably
(making codegen less error-prone).

Reviewed By: ThomasRaoux

Differential Revision: https://reviews.llvm.org/D94278
2021-01-08 13:59:34 -08:00
aartbik
6b66f21446 [mlir] [VectorOps] Canonicalization of 1-D memory operations
Masked loading/storing in various forms can be optimized
into simpler memory operations when the mask is all true
or all false. Note that the backend does similar optimizations
but doing this early may expose more opportunities for further
optimizations. This further prepares progressively lowering
transfer read and write into 1-D memory operations.

Reviewed By: ThomasRaoux

Differential Revision: https://reviews.llvm.org/D85769
2020-08-13 17:15:35 -07:00