BUG=
R=titzer@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22555004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16139 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/19272011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15683 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The HGlobalValueNumberer class is renamed to HGlobalValueNumberingPhase,
following the naming scheme suggested by danno@chromium.org in
https://codereview.chromium.org/17458002

The GVN phase now uses the phase zone for all its allocations.

Depends upon https://codereview.chromium.org/18022002

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/17657004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15353 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

There's no need to differentiate between an actual Zone and its
scope. Instead we bind the lifetime of the Zone memory to the
lifetime of the Zone itself, which is way easier to understand
than having to dig through the code looking for zone scopes.

Depends on https://codereview.chromium.org/17826004/

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/17827005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15337 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The phase_zone of CompilationInfo is intended for local allocations that
are freed at the end of the phase.

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/17573003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15294 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://codereview.chromium.org/16095004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14824 ce2b1a6d-e550-0410-aec6-3dcde31c8c00