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Author SHA1 Message Date
koda@google.com 0844cbcfbe Proof-of-concept pretenuring of some strings: 
- Add bump-pointer allocated block in page space.
- Pretenure num.toString whenever >98% of strings are being promoted.
- Fix deadlock in freelist printing.

Review URL: https://codereview.chromium.org//511963007

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@39688 260f80e4-7a28-3924-810f-c04153c831b5
 2014-08-29 03:54:12 +00:00
koda@google.com c22d3cf74a Avoid UTF-8 decoding in num.toString. 
4-7% speedup on SplayHarder.

Introduce _Num class to make Dart and VM hierarchies match and enable sharing code between integers and doubles.

R=iposva@google.com

Review URL: https://codereview.chromium.org//473673004

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@39383 260f80e4-7a28-3924-810f-c04153c831b5
 2014-08-19 21:15:39 +00:00