4 Commits

Author SHA1 Message Date
Matthias Springer
76a1861816 [mlir][SparseTensor] Split scf.for loop into masked/unmasked parts
Apply the "for loop peeling" pattern from SCF dialect transforms. This pattern splits scf.for loops into full and partial iterations. In the full iteration, all masked loads/stores are canonicalized to unmasked loads/stores.

Differential Revision: https://reviews.llvm.org/D107733
2021-08-19 21:53:11 +09:00
Aart Bik
86e9bc1a34 [mlir][sparse] add option for 32-bit indices in scatter/gather
Controlled by a compiler option, if 32-bit indices can be handled
with zero/sign-extention alike (viz. no worries on non-negative
indices), scatter/gather operations can use the more efficient
32-bit SIMD version.

Reviewed By: bixia

Differential Revision: https://reviews.llvm.org/D103632
2021-06-04 16:57:12 -07:00
Aart Bik
96a23911f6 [mlir][sparse] complete migration to sparse tensor type
A very elaborate, but also very fun revision because all
puzzle pieces are finally "falling in place".

1. replaces lingalg annotations + flags with proper sparse tensor types
2. add rigorous verification on sparse tensor type and sparse primitives
3. removes glue and clutter on opaque pointers in favor of sparse tensor types
4. migrates all tests to use sparse tensor types

NOTE: next CL will remove *all* obsoleted sparse code in Linalg

Reviewed By: bixia

Differential Revision: https://reviews.llvm.org/D102095
2021-05-10 12:55:22 -07:00
Aart Bik
a2c9d4bb04 [mlir][sparse] Introduce proper sparsification passes
This revision migrates more code from Linalg into the new permanent home of
SparseTensor. It replaces the test passes with proper compiler passes.

NOTE: the actual removal of the last glue and clutter in Linalg will follow

Reviewed By: bixia

Differential Revision: https://reviews.llvm.org/D101811
2021-05-04 17:10:09 -07:00