273556 2024-05-01 10:49:30 -0700 [Win] Use SystemV ABI for JIT entrypoints in YarrJIT on Windows 2024-06-26 14:52:11 -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 2032512 0 ian.grunert 2024-05-01 10:49:30 -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. Yarr JIT is a good self-contained place to try out this change. We should be able to enable a few disabled features in Yarr JIT on Windows in the process: YARR_JIT_ALL_PARENS_EXPRESSIONS YARR_JIT_REGEXP_TEST_INLINE YARR_JIT_BACKREFERENCES YARR_JIT_BACKREFERENCES_FOR_16BIT_EXPRS 2034032 1 webkit-bug-importer 2024-05-08 10:50:16 -0700 <rdar://problem/127751244> 2043223 2 ian.grunert 2024-06-26 11:05:13 -0700 Pull request: https://github.com/WebKit/WebKit/pull/30197 2043279 3 ews-feeder 2024-06-26 14:52:09 -0700 Committed 280393@main (778df0f67e60): <https://commits.webkit.org/280393@main> Reviewed commits have been landed. Closing PR #30197 and removing active labels.