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Optimize Symbol Propagation (propagateSymbolsUp) #9337
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…mize-symbol-propagation
Benchmark ResultsKitchen Sink ✅
Timings
Cold Bundles
Cached BundlesNo bundle changes detected. React HackerNews ✅
Timings
Cold Bundles
Cached BundlesNo bundle changes detected. AtlasKit Editor ✅
Timings
Cold Bundles
Cached Bundles
Three.js ✅
Timings
Cold BundlesNo bundle changes detected. Cached Bundles
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mischnic
reviewed
Nov 6, 2023
mischnic
reviewed
Nov 6, 2023
Symbol propagation doesn't need the |
Co-authored-by: Niklas Mischkulnig <[email protected]>
…mize-symbol-propagation
…mize-symbol-propagation
…-bundler/parcel into gkong/optimize-symbol-propagation
mischnic
approved these changes
Nov 27, 2023
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↪️ Pull Request
This PR includes a post-order implementation of
dfsFast
(an iterative DFS), and is used inpropagateSymbolsUp
.Note:
skipChildren()
is not included inpostOrderDfsFast
since it doesn't make sense to skip children in a traversal where we visit children before its parents.These changes result in ~2% performance increase in symbol propagation.