275213 2024-06-06 09:55:07 -0700 [Win] Use SystemV ABI for Baseline JS JIT on Windows 2024-06-20 13:41:12 -0700 1 1 1 Unclassified WebKit JavaScriptCore WebKit Nightly Build PC Windows 10 RESOLVED FIXED InRadar P2 Normal --- 1 ian.grunert webkit-unassigned fujii webkit-bug-importer oldest_to_newest 2040112 0 ian.grunert 2024-06-06 09:55:07 -0700 clang-cl gives us the option of changing a function to use the SystemV ABI: https://clang.llvm.org/docs/AttributeReference.html#sysv-abi By using this on functions on the C++ / JIT boundaries, we can use the same codepaths for function calls and the same register mappings between Windows and Linux / Mac / BSD. Enabling the Baseline JS JIT is the next step, and unblocks the possibility of enabling the rest of the JITs: * Wasm LLInt (JIT required for entry thunks) * Wasm BBQ JIT * Wasm OMG JIT * YarrJIT * CSS Selector JIT * DFG JIT * FTL JIT 2041186 1 webkit-bug-importer 2024-06-13 11:58:01 -0700 <rdar://problem/129784852> 2041703 2 ian.grunert 2024-06-17 11:49:37 -0700 Pull request: https://github.com/WebKit/WebKit/pull/29582 2042304 3 ews-feeder 2024-06-20 13:41:10 -0700 Committed 280216@main (0b1e4218e15e): <https://commits.webkit.org/280216@main> Reviewed commits have been landed. Closing PR #29582 and removing active labels.