RESOLVED FIXED 170569
Linear scan should run liveness only once 
https://bugs.webkit.org/show_bug.cgi?id=170569
Summary Linear scan should run liveness only once
Filip Pizlo
Reported Thursday, April 6, 2017 11:01:13 PM UTC
Patch forthcoming.
Attachments
it's a start (36.18 KB, patch)
2017-04-06 15:01 PDT, Filip Pizlo 		no flags
DetailsFormatted DiffDiff
the patch (42.64 KB, patch)
2017-04-06 16:50 PDT, Filip Pizlo 		keith_miller: review+
DetailsFormatted DiffDiff
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.
Filip Pizlo
Comment 1 Thursday, April 6, 2017 11:01:50 PM UTC
Created attachment 306430 [details] it's a start
Filip Pizlo
Comment 2 Friday, April 7, 2017 12:50:27 AM UTC
Created attachment 306437 [details] the patch another 10% -O1 compile time speed-up
Filip Pizlo
Comment 3 Friday, April 7, 2017 1:06:57 AM UTC
(In reply to Filip Pizlo from comment #2) > Created attachment 306437 [details] > the patch > > another 10% -O1 compile time speed-up Actually, further testing shows that it's only a 6% speed-up. Still good though.
Keith Miller
Comment 4 Friday, April 7, 2017 1:09:33 AM UTC
Comment on attachment 306437 [details] the patch r=me.
Filip Pizlo
Comment 5 Friday, April 7, 2017 1:11:39 AM UTC
Landed in https://trac.webkit.org/changeset/215071/webkit
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