Just visit young array buffers during scavenge. Additionally keep the views in new space in a separate global list and move them to the corresponding array buffers when they get promoted.

This reduces young generation garbage collections when many array buffers are allocated.
BUG=

Review URL: https://codereview.chromium.org/904633003

Cr-Commit-Position: refs/heads/master@{#26605}

R=danno@chromium.org
TEST=cctest/test-run-intrinsics/CallFunction

Review URL: https://codereview.chromium.org/916873002

Cr-Commit-Position: refs/heads/master@{#26604}

port fdcf3e59 (r26599)

original commit message:

    new classes: implement correct check for uninitialized this in 'super()'

BUG=
R=weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/913383002

Cr-Commit-Position: refs/heads/master@{#26603}

Rename tools/vim/v8.ycm_extra_conf.py to .ycm_extra_conf.py, so every
YCM plugin (no matter if it's VIM or Emacs) should pick it up
automatically.

Also move the common tools/vim/ninja_output.py to tools/ninja/ as it's
also not related to VIM.

Review URL: https://codereview.chromium.org/904143003

Cr-Commit-Position: refs/heads/master@{#26602}

port 9b158fa7 (r26594)

original commit message:

  new classes: implement default constructors

BUG=
R=weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/914403004

Cr-Commit-Position: refs/heads/master@{#26601}

TBR=machenbach@chromium.org

BUG=

Review URL: https://codereview.chromium.org/915113004

Cr-Commit-Position: refs/heads/master@{#26600}

R=arv@chromium.org
BUG=v8:3834
LOG=N

Review URL: https://codereview.chromium.org/918603004

Cr-Commit-Position: refs/heads/master@{#26599}

Port 9b158fa7

BUG=

Review URL: https://codereview.chromium.org/914303003

Cr-Commit-Position: refs/heads/master@{#26598}

Port bf49be39

BUG=

Review URL: https://codereview.chromium.org/906813003

Cr-Commit-Position: refs/heads/master@{#26597}

port bf49be39 (r26572)

original commit message:

   new classes: implement new.target passing to superclass constructor

BUG=

Review URL: https://codereview.chromium.org/912233003

Cr-Commit-Position: refs/heads/master@{#26596}

  This error is exposed by this CL:  https://codereview.chromium.org/817293005.

   This CL set all Buildin JS function to optimization_disabled.
   And set the bailout reason to "kBuiltinFunctionCannotBeOptimized". But in Runtime_SetCode() function.
   It copied the the compiler_hints which include the "bool optimization_disabled" value,
   But the corresponding Bailout reason is not copied.
   This leads to the check error in "CompilationInfo::AbortOptimization(...)" function.

  This issue is exposed on turbofan unsupported X87 platform. Crankshaft is invoked to compile
 the typed array function Uint8Array.

BUG=

Review URL: https://codereview.chromium.org/917643002

Cr-Commit-Position: refs/heads/master@{#26595}

R=arv@chromium.org,rossberg@chromium.org
BUG=v8:3834
LOG=N

Review URL: https://codereview.chromium.org/917753002

Cr-Commit-Position: refs/heads/master@{#26594}

The offensive cl is https://codereview.chromium.org/874323003/

Test:
./out/arm64.debug/d8 --test --random-seed=-235865360 --turbo-deoptimization --turbo-filter=* --always-opt --debug-code --verify-heap --gc-interval=500 --stress-compaction test/mjsunit/mjsunit.js test/mjsunit/regress/regress-builtinbust-7.js --trace-deopt

BUG=452067
TBR=dcarney, svenpanne
LOG=n

Review URL: https://codereview.chromium.org/917823002

Cr-Commit-Position: refs/heads/master@{#26593}

BUG=

Review URL: https://codereview.chromium.org/905383003

Cr-Commit-Position: refs/heads/master@{#26592}

R=jarin@chromium.org
TEST=unittests/ControlEquivalenceTest

Review URL: https://codereview.chromium.org/916823002

Cr-Commit-Position: refs/heads/master@{#26591}

port 5d68529b (r26546)

original commit message:

   Parsing: Make Scope not know about Isolate.

  Scope, like Parser, must be able to operate independent of Isolate and the V8
  heap (for background parsing). After the heap-independent phase, there is a heap
  dependent phase, during which we do operations such as scope anaylysis.

  This CL makes the phases explicit by not telling Scope about the Isolate too
  early (during the heap-independent phase, Scope should know nothing about
  Isolate). This decreases the probability of accidental code changes which would
  add heap-dependent operations into the heap-independent phase.

BUG=
R=weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/913163003

Cr-Commit-Position: refs/heads/master@{#26590}

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/917583004

Cr-Commit-Position: refs/heads/master@{#26589}

port 86cae163 (r26545)

original commit message:

  1) Deoptimizer::Reason was replaced with Deoptimizer::DeoptInfo
     because it also has raw position. Also the old name clashes with DeoptReason enum.

  2) c_entry_fp assignment call was added to EntryGenerator::Generate
     So we can calculate sp and have a chance to record the stack for the deopting function.
     btw it makes the test stable.

  3) new kind of CodeEvents was added to cpu-profiler

  4) GetDeoptInfo method was extracted from PrintDeoptLocation.
     So it could be reused in cpu profiler.

BUG=
R=weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/912403003

Cr-Commit-Position: refs/heads/master@{#26588}

This comment used to have a (commented-out) ASSERT attached to it.
But that ASSERT was removed years ago, so the comment is now a
non-sequitar.

Review URL: https://codereview.chromium.org/918453002

Cr-Commit-Position: refs/heads/master@{#26587}

We did not set up the [[HomeObject]] for properties created for
computed property names.

BUG=v8:3879
LOG=N
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/914773002

Cr-Commit-Position: refs/heads/master@{#26586}

Support for `new super` has been removed so this code in the full
code gen is now unreachable.

BUG=None
LOG=N
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/911223002

Cr-Commit-Position: refs/heads/master@{#26585}

R=bmeurer@chromium.org
TEST=unittests/CommonOperatorTest

Review URL: https://codereview.chromium.org/912393002

Cr-Commit-Position: refs/heads/master@{#26584}

R=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/917433007

Cr-Commit-Position: refs/heads/master@{#26583}

LOG=N
BUG=v8:3884

Review URL: https://codereview.chromium.org/916803002

Cr-Commit-Position: refs/heads/master@{#26582}

TBR=vogelheim@chromium.org

Review URL: https://codereview.chromium.org/913173002

Cr-Commit-Position: refs/heads/master@{#26581}

A CompilationInfo constructed from just an Isolate* and a Zone* is in
weird an inconsistent state (calling e.g. flags() on it will crash),
so we need to avoid them. This CL removes almost all of them, the
remaining 2 call sites in (for testing only) will be handled in a
separate CL. Things which have been changed:

  * Linkage is basically a decorator for CallDescriptor now.

  * ChangeLowering doesn't need Linkage at all.

  * JSGenericLowering doesn't need a full CompilationInfo*, just a
    single flag.

  * JSContextSpecializer doesn't need the full CompilationInfo, just a
    Context.

  * Removed unused CompilationInfo from SimplifiedLoweringTester.

This nicely decouples things already a bit more, but there's still
work to do...

Review URL: https://codereview.chromium.org/899803003

Cr-Commit-Position: refs/heads/master@{#26580}

R=vogelheim@chromium.org

Review URL: https://codereview.chromium.org/917653002

Cr-Commit-Position: refs/heads/master@{#26579}

R=jochen@chromium.org
BUG=chromium:457459
LOG=N

Review URL: https://codereview.chromium.org/919613002

Cr-Commit-Position: refs/heads/master@{#26578}

BUG=454725
LOG=n

Review URL: https://codereview.chromium.org/919473008

Cr-Commit-Position: refs/heads/master@{#26577}

BUG=

Review URL: https://codereview.chromium.org/898353002

Cr-Commit-Position: refs/heads/master@{#26576}

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/912333002

Cr-Commit-Position: refs/heads/master@{#26575}

R=jkummerow@chromium.org
BUG=v8:3853
LOG=Y

Review URL: https://codereview.chromium.org/867373003

Cr-Commit-Position: refs/heads/master@{#26574}

BUG=v8:3882
LOG=NO

Review URL: https://codereview.chromium.org/913093002

Cr-Commit-Position: refs/heads/master@{#26573}

R=arv@chromium.org,rossberg@chromium.org
BUG=v8:3834
LOG=N

Committed: https://crrev.com/8aed43e82c6d2742fe5988603cb8841324cc942b
Cr-Commit-Position: refs/heads/master@{#26560}

Review URL: https://codereview.chromium.org/908883002

Cr-Commit-Position: refs/heads/master@{#26572}

BUG=

Review URL: https://codereview.chromium.org/916753002

Cr-Commit-Position: refs/heads/master@{#26571}

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/897213003

Cr-Commit-Position: refs/heads/master@{#26570}

R=verwaest@chromium.org

BUG=

Review URL: https://codereview.chromium.org/911713003

Cr-Commit-Position: refs/heads/master@{#26569}

The mips HW prior to revision 5 has opposite encoding for NaNs.

TEST=mjsunit/regress/*, regress-1167, regress-undefined-nan2
BUG=

Review URL: https://codereview.chromium.org/912833003

Cr-Commit-Position: refs/heads/master@{#26568}

Somehow these changes didn't make it into https://codereview.chromium.org/915583002 ... :-/

Review URL: https://codereview.chromium.org/919473005

Cr-Commit-Position: refs/heads/master@{#26567}

TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/915933003

Cr-Commit-Position: refs/heads/master@{#26566}