Bug 234590

Summary: We should be able to OSR enter from BBQOSREntry code to OMGOSREntry code
Product: WebKit Reporter: Saam Barati <saam>
Component: JavaScriptCoreAssignee: Saam Barati <saam>
Status: NEW    
Severity: Normal CC: justin_michaud, keith_miller, webkit-bug-importer, ysuzuki
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
WIP
none
WIP none

Saam Barati
Reported 2021-12-21 18:49:02 PST
We don't want to get stuck in BBQ forever in a long running loop. I think architecturally it'd just be best if we compiled a single BBQ Air Callee. That Callee can support OSR entering at certain loop boundaries. Perhaps we can implement it via entry switch. If we do that, this problem solves itself.
Attachments
WIP (97.29 KB, patch)
2021-12-22 17:23 PST, Saam Barati 		no flags
DetailsFormatted DiffDiff
WIP (97.29 KB, patch)
2021-12-22 17:54 PST, Saam Barati 		no flags
DetailsFormatted DiffDiff
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.
Saam Barati
Comment 1 2021-12-22 17:23:51 PST
Created attachment 447847 [details] WIP
Saam Barati
Comment 2 2021-12-22 17:54:46 PST
Created attachment 447849 [details] WIP It's revealing a regalloc bug in O0
Radar WebKit Bug Importer
Comment 3 2021-12-28 18:49:19 PST
<rdar://problem/86968861>
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