RESOLVED FIXED302915
Add MacroAssembler emitters for load of 8, 16, and 32 bit values that sign extend into 32 or 64 bit registers. 
https://bugs.webkit.org/show_bug.cgi?id=302915
Summary Add MacroAssembler emitters for load of 8, 16, and 32 bit values that sign ex...
Mark Lam
Reported 2025-11-20 21:43:05 PST
Some of these will currently be used to make WasmBBQJIT64 codegen more efficient, and enable us to implement other things in the near future. Also add testmasm tests for all these emitters.
Attachments
Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2025-11-20 21:43:35 PST
<rdar://problem/165186300>
Mark Lam
Comment 2 2025-11-20 21:44:09 PST
This is based on work originally done by Yusuke Suzuki at https://github.com/WebKit/WebKit/pull/44441/commits/5c6c5db61ec64440afd15e8818acf0fcfad99024.
Mark Lam
Comment 3 2025-11-20 22:00:31 PST
Pull request: https://github.com/WebKit/WebKit/pull/54294
EWS
Comment 4 2025-11-21 12:34:49 PST
Committed 303414@main (466d85255afa): <https://commits.webkit.org/303414@main> Reviewed commits have been landed. Closing PR #54294 and removing active labels.
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