Bug 274064

Summary: [Win] Use SystemV ABI for C++ entrypoints for JS LLInt
Product: WebKit Reporter: Ian Grunert <ian.grunert>
Component: JavaScriptCoreAssignee: Nobody <webkit-unassigned>
Status: RESOLVED FIXED    
Severity: Normal CC: Hironori.Fujii, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: PC   
OS: Windows 10   

Description Ian Grunert 2024-05-12 17:53:07 PDT 
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.
Comment 1 Ian Grunert 2024-05-17 12:13:48 PDT 
Pull request: https://github.com/WebKit/WebKit/pull/28723
Comment 2 EWS 2024-05-18 18:26:40 PDT 
Committed 278967@main (8f1711cf5f78): <https://commits.webkit.org/278967@main>

Reviewed commits have been landed. Closing PR #28723 and removing active labels.
Comment 3 Radar WebKit Bug Importer 2024-05-18 18:27:16 PDT 
<rdar://problem/128339579>