[PATCH] D79518: [mlir][Linalg] Introduce a helper function for staged pattern application
Nicolas Vasilache via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed May 6 13:35:24 PDT 2020
nicolasvasilache created this revision.
nicolasvasilache added reviewers: ftynse, poechsel.
Herald added subscribers: llvm-commits, Kayjukh, frgossen, grosul1, Joonsoo, stephenneuendorffer, liufengdb, aartbik, lucyrfox, mgester, arpith-jacob, antiagainst, shauheen, jpienaar, rriddle, mehdi_amini.
Herald added a reviewer: rriddle.
Herald added a reviewer: aartbik.
Herald added a project: LLVM.
This revision introduces a helper function to allow applying rewrite patterns, interleaved with more global transformations, in a staged fashion:
1. the first stage consists of an OwningRewritePatternList. The RewritePattern in this list are applied once and in order.
2. the second stage consists of a single OwningRewritePattern that is applied greedily until convergence.
3. the third stage consists of applying a lambda, generally used for non-local transformation effects.
This allows creating custom fused transformations where patterns can be ordered and applied at a finer granularity than a sequence of traditional compiler passes.
A test that exercises these behaviors is added.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D79518
Files:
mlir/include/mlir/Dialect/Linalg/Transforms/Transforms.h
mlir/include/mlir/IR/PatternMatch.h
mlir/lib/Dialect/Linalg/Transforms/Transforms.cpp
mlir/test/Dialect/Linalg/transform-patterns-matmul-to-vector.mlir
mlir/test/lib/Transforms/TestLinalgTransforms.cpp
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