Tracking Tmps is expensive, tracking Regs is cheap. We sometimes need to compute liveness of Regs only. That should be cheap and not expensive.
Created attachment 268660 [details] the patch Not ready for review yet because I haven't run all of the tests yet.
Attachment 268660 [details] did not pass style-queue: ERROR: Source/JavaScriptCore/b3/air/AirInstInlines.h:82: Place brace on its own line for function definitions. [whitespace/braces] [4] Total errors found: 1 in 9 files If any of these errors are false positives, please file a bug against check-webkit-style.
Comment on attachment 268660 [details] the patch View in context: https://bugs.webkit.org/attachment.cgi?id=268660&action=review r=me > Source/WTF/ChangeLog:15 > + BitVector other than this, so it doesn't make sense to made it harder to access. made=>make
Landed in http://trac.webkit.org/changeset/194834