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| author | Christian Ulmann <christianulmann@gmail.com> | 2024-05-08 15:53:14 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-05-08 15:53:14 +0200 |
| commit | c6efcc925c9969d616bc463171c0423d6a9766af (patch) | |
| tree | 6c5efe959cc23e4b6cb096fb67d6d44cd944e3c6 /llvm/lib/Bitcode/Reader/BitcodeReader.cpp | |
| parent | 9c09b0840e82490ed194207adc03d3e7284b8764 (diff) | |
[MLIR][Mem2Reg] Improve performance by avoiding recomputations (#91444)
This commit ensures that Mem2Reg reuses the `DominanceInfo` as well as
block index maps to avoid expensive recomputations. Due to the recent
migration to `OpBuilder`, the promotion of a slot does no longer replace
blocks. Having stable blocks makes the `DominanceInfo` preservable and
additionally allows to cache block index maps between different
promotions.
Performance measurements on very large functions show an up to 4x
speedup by these changes.
Diffstat (limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')
0 files changed, 0 insertions, 0 deletions