232647 2021-11-02 17:04:10 -0700 Remove ReduceLoopStrength 2024-04-08 13:37:18 -0700 1 1 1 Unclassified WebKit JavaScriptCore WebKit Nightly Build Unspecified Unspecified RESOLVED CONFIGURATION CHANGED InRadar P2 Normal --- 230908 1 justin_michaud justin_michaud ews-watchlist keith_miller mark.lam msaboff saam tzagallo webkit-bug-importer oldest_to_newest 1811321 0 justin_michaud 2021-11-02 17:04:10 -0700 After the introduction of WasmAddress, this pass no longer does anything. It will likely only ever be profitable for WASM, and in addition, the pattern matching is pretty fragile. For now, we should remove it, and consider re-adding it when we need a JetStream progression. Here are some additional thoughts that we should consider before we add it back: 1) We consider hoisting WasmAddress in LICM or as a peephole optimization 2) We should support ARM64: see 230908 3) If we get SIMD/memcpy instruction support, we should consider inlining memcpy 4) We should make the pattern matching more general 1811322 1 443149 justin_michaud 2021-11-02 17:07:55 -0700 Created attachment 443149 Patch 1813383 2 webkit-bug-importer 2021-11-09 16:05:31 -0800 <rdar://problem/85228080> 2026872 3 justin_michaud 2024-04-08 13:37:18 -0700 Closing old bugs assigned to me 443149 2021-11-02 17:07:55 -0700 2021-11-02 17:07:55 -0700 Patch bug-232647-20211102170754.patch text/plain 34492 justin_michaud U3VidmVyc2lvbiBSZXZpc2lvbjogMjg1MTE3CmRpZmYgLS1naXQgYS9Tb3VyY2UvSmF2YVNjcmlw dENvcmUvQ2hhbmdlTG9nIGIvU291cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwppbmRleCA3 YmU2ZjRjOWY4ZjNhMjFjNThiYTQzYjcwZmExZjIyMzVjNDBlMDJkLi45NzBkMjY2YTg2M2E1NDc1 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