Bug 148544

Summary:	LICMPhase should correct the values of the Check flags of hoisted nodes
Product:	WebKit	Reporter:	Filip Pizlo <fpizlo>
Component:	JavaScriptCore	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED DUPLICATE
Severity:	Normal	CC:	saam
Priority:	P2
Version:	WebKit Local Build
Hardware:	All
OS:	All
See Also:	https://bugs.webkit.org/show_bug.cgi?id=180852

Description Filip Pizlo 2015-08-27 16:34:15 PDT

It's appropriate for a DFG phase to assume that the Check flags are correct (i.e. lack of Check flag means that something was proved to not need a check), so LICM should make sure to set those flags if it hoists something that would need a check in the loop pre-header even though it maybe doesn't in the loop.

Comment 1 Saam Barati 2017-12-14 19:18:25 PST


*** This bug has been marked as a duplicate of bug 180852 ***