3 Commits

Author SHA1 Message Date
Jacques Pienaar
09dfc5713d
[mlir] Enable decoupling two kinds of greedy behavior. (#104649)
The greedy rewriter is used in many different flows and it has a lot of
convenience (work list management, debugging actions, tracing, etc). But
it combines two kinds of greedy behavior 1) how ops are matched, 2)
folding wherever it can.

These are independent forms of greedy and leads to inefficiency. E.g.,
cases where one need to create different phases in lowering and is
required to applying patterns in specific order split across different
passes. Using the driver one ends up needlessly retrying folding/having
multiple rounds of folding attempts, where one final run would have
sufficed.

Of course folks can locally avoid this behavior by just building their
own, but this is also a common requested feature that folks keep on
working around locally in suboptimal ways.

For downstream users, there should be no behavioral change. Updating
from the deprecated should just be a find and replace (e.g., `find ./
-type f -exec sed -i
's|applyPatternsAndFoldGreedily|applyPatternsGreedily|g' {} \;` variety)
as the API arguments hasn't changed between the two.
2024-12-20 08:15:48 -08:00
Christian Sigg
a5757c5b65
Switch member calls to isa/dyn_cast/cast/... to free function calls. (#89356)
This change cleans up call sites. Next step is to mark the member
functions deprecated.

See https://mlir.llvm.org/deprecation and
https://discourse.llvm.org/t/preferred-casting-style-going-forward.
2024-04-19 15:58:27 +02:00
Kolya Panchenko
9f6c00565a
[MLIR][VCIX] Support VCIX intrinsics in LLVMIR dialect (#75875)
The changeset extends LLVMIR intrinsics with VCIX intrinsics.
The VCIX intrinsics allow MLIR users to interact with RISC-V
co-processors that are compatible with `XSfvcp` extension

Source:
https://www.sifive.com/document-file/sifive-vector-coprocessor-interface-vcix-software
2024-02-07 15:23:28 -05:00