[PATCH] D72453: [Matrix] Add optimization remarks for matrix expression.

[Florian Hahn via Phabricator via llvm-commits]

fhahn created this revision.
fhahn added reviewers: anemet, Gerolf, thegameg, hfinkel, andrew.w.kaylor, LuoYuanke.
Herald added subscribers: llvm-commits, tschuett, hiraditya.
Herald added a project: LLVM.

Generate remarks for matrix operations in a function. To generate remarks
for matrix expressions, the following approach is used:

1. Collect leafs of matrix expressions (done in RemarkGenerator::getExpressionLeafs).  Leafs are lowered matrix instructions without other matrix users (like stores).

2. For each leaf, create a remark containing a linearizied version of the matrix expression.

The following improvements will be submitted as follow-ups:

- Summarize number of vector instructions generated for each expression.
- Account for shared sub-expressions.
- Propagate matrix remarks up the inlining chain.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D72453

Files:
  llvm/lib/Transforms/Scalar/LowerMatrixIntrinsics.cpp
  llvm/test/Transforms/LowerMatrixIntrinsics/remarks.ll

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