[Webkit-unassigned] [Bug 230241] Fix crash in 32 bits due to not enough scratch registers available
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Wed Sep 15 06:03:58 PDT 2021
https://bugs.webkit.org/show_bug.cgi?id=230241
--- Comment #9 from Caio Lima <ticaiolima at gmail.com> ---
Comment on attachment 438171
--> https://bugs.webkit.org/attachment.cgi?id=438171
Patch
View in context: https://bugs.webkit.org/attachment.cgi?id=438171&action=review
I like this version much more. I’m just a bit afraid we are giving up on cache on cases where we still could do it. Could you run some benchmarks to verify if we are not regressing anything?
> Source/JavaScriptCore/bytecode/AccessCase.cpp:140
> + requiredRegisters *= 2;
This is a bit conservative, because we can have `baseRegs` be only payload register, since we know somehow it’s a cell. IIRC, such info will be available on stubInfo.
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