[turbofan] Add support for ChangeTaggedToUint32 in ChangeLowering.

Also refactor some common code in ChangeLowering.

TEST=cctest,compiler-unittests
R=jarin@chromium.org

Review URL: https://codereview.chromium.org/488043002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23216 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Refactor Scheduler to simplify construction of CFG from sea of nodes. Use PreEdge/Post as part of the graph tarversal, and make finding of successor projections more robust.

R=jarin@chromium.org
BUG=

Review URL: https://codereview.chromium.org/490483002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23217 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[turbofan] Add support for Finish to the InstructionSelector.

Also fix an off-by-one bug in the handling of Parameter nodes, and
improve test coverage for pointer map computation.

TEST=compiler-unittest
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/490673006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23219 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
[turbofan] Add ARM64 tests and fix shift bug

Add more tests for logical immediate and shift instruction selection, and fix bug in range for supported shifts.

BUG=
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/487163004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23220 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix windows test runner.

TBR=titzer@chromium.org

Review URL: https://codereview.chromium.org/494603002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23221 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Check in "cpu.sh" script to control CPU governor/cores on Linux

This can help with reproducing stability bugs or performance issues.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/485763003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23222 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Remove RegExp.$input.

R=arv@chromium.org, mathiasb@opera.com
BUG=v8:3486
LOG=Y

Review URL: https://codereview.chromium.org/465273002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23223 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Use actual incremental marking throughput in IdleNotification to estimate marking step size.

BUG=
R=jochen@chromium.org, ulan@chromium.org

Review URL: https://codereview.chromium.org/465473002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23224 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix arm64 build.

TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/490643006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23225 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Get rid of GetLazyValue and clients.
This breaks fetching name of the constructor property of "Object"-labeled values in the heap-snapshot-generator until that's handlified and can be moved over to the LookupIterator.
BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/480823004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23226 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Expose function CheckDebugBreak in the debugger api

API=v8::Debug::CheckDebugBreak
LOG=Y
R=aandrey@chromium.org, vsevik@chromium.org, yurys@chromium.org

Review URL: https://codereview.chromium.org/473913002

Patch from Sergei Vasilinetc <sergeyv@chromium.org>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23227 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Fix --expose-debug-as with number as argument.

R=jkummerow@chromium.org
BUG=405491
LOG=N

Review URL: https://codereview.chromium.org/468803004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23228 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/master'