Bug 302776

Summary:	Size in bytes to clobber is not aligned on 32 bit OMGIRGenerator's prepareForTailCallImpl
Product:	WebKit	Reporter:	Ioanna M. Dimitriou H. <idimitriou>
Component:	WebAssembly	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Ioanna M. Dimitriou H.

Reported 2025-11-19 04:57:26 PST

On 32 bit systems registerSize() is 8, which causes the assertion in OMGIRGenerator::prepareForTailCallImpl to fail because the stackBytesToClobber are then not aligned on the stack.

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Ioanna M. Dimitriou H.

Comment 1 2025-11-19 04:59:45 PST

Pull request: https://github.com/WebKit/WebKit/pull/54173

EWS

Comment 2 2025-11-25 02:57:42 PST

Committed 303530@main (9f179c4476dd): <https://commits.webkit.org/303530@main> Reviewed commits have been landed. Closing PR #54173 and removing active labels.

Radar WebKit Bug Importer

Comment 3 2025-11-25 02:58:15 PST

<rdar://problem/165391700>

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