port f2f46aff (r31242).

    original commit message:
    The lack of a vector slot for the keyed store operation in filling in
    non-constant array literal properties led to undesirable contortions in
    compilers downwind of full-codegen. The use of a single slot to initialize all
    the array elements is sufficient.

BUG=

Review URL: https://codereview.chromium.org/1422443004

Cr-Commit-Position: refs/heads/master@{#31505}

    port 2d4aeaad (r31204).

    original commit message:
    The stack manipulation was expensive. Two virtual registers are better.

BUG=

Review URL: https://codereview.chromium.org/1410573003

Cr-Commit-Position: refs/heads/master@{#31504}

    port 9c8262f1 (r31120).

    original commit message:
    When calling into C++ builtins, we need to make sure that the argument
    count register contains the correct number of arguments, otherwise the
    CEntryStub will not be able to leave the stack in the correct state.

BUG=

Review URL: https://codereview.chromium.org/1418533009

Cr-Commit-Position: refs/heads/master@{#31503}

    port 75f6ad74 (r31089).

    original commit message:
    Adds support for calling runtime functions from the interpreter. Adds the
    CallRuntime bytecode which takes a Runtime::FunctionId of the function to call
    and the arguments in sequential registers. Adds a InterpreterCEntry builtin
    to enable the interpreter to enter C++ code based on the functionId.

    Also renames Builtin::PushArgsAndCall to Builtin::InterpreterPushArgsAndCall
    and groups all the interpreter builtins together.

    BUG=v8:4280
    LOG=N

Review URL: https://codereview.chromium.org/1418213002

Cr-Commit-Position: refs/heads/master@{#31502}

This is in preparation of implementing Reflect.set.

R=rossberg
BUG=

Review URL: https://codereview.chromium.org/1394983005

Cr-Commit-Position: refs/heads/master@{#31501}

BUG=

Review URL: https://codereview.chromium.org/1419143003

Cr-Commit-Position: refs/heads/master@{#31500}

This is in preparation of using it elsewhere.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1408163003

Cr-Commit-Position: refs/heads/master@{#31499}

BUG=v8:4406
LOG=N

Review URL: https://codereview.chromium.org/1416053010

Cr-Commit-Position: refs/heads/master@{#31498}

BUG=

Review URL: https://codereview.chromium.org/1418693005

Cr-Commit-Position: refs/heads/master@{#31497}

This patch only treats non-private symbols as valid feedback, thus
avoiding the need to switch to Oddballs for the feedback sentinels
and avoiding breaking the use of private own symbols.

Crankshaft will also optimize these symbol loads into a named load,
just as it does for string keyed loads with type feedback.

BUG=

Review URL: https://codereview.chromium.org/1415333003

Cr-Commit-Position: refs/heads/master@{#31496}

BUG=none
LOG=n
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/1410883006

Cr-Commit-Position: refs/heads/master@{#31495}

    port 5cf1c0bc (r31087).

    original commit message:
    Previous to this patch, both the lithium and TurboFan register
    allocators tracked allocated registers by "indices", rather than
    the register codes used elsewhere in the runtime. This patch
    ensures that codes are used everywhere, and in the process cleans
    up a bunch of redundant code and adds more structure to how the
    set of allocatable registers is defined.

    Some highlights of changes:

    * TurboFan's RegisterConfiguration class moved to V8's top level
      so that it can be shared with Crankshaft.
    * Various "ToAllocationIndex" and related methods removed.
    * Code that can be easily shared between Register classes on
      different platforms is now shared.
    * The list of allocatable registers on each platform is declared
      as a list rather than implicitly via the register index <->
      code mapping.

    additional comment:
    This patch must be work with CL https://codereview.chromium.org/1405673003/
    and CL https://codereview.chromium.org/1413343002/
    which provide the needed register allocation common code change in
    v8 for this CL

BUG=

Review URL: https://codereview.chromium.org/1410393004

Cr-Commit-Position: refs/heads/master@{#31494}

BUG=v8:4406
LOG=N

Review URL: https://codereview.chromium.org/1420653005

Cr-Commit-Position: refs/heads/master@{#31493}

   Currently X87 turbofan backend use only one double register. But crankshaft needs to use more than 1
   double register. The reason is that the X87 register is stack-based and the register allocator use
   the same algorithm for all registers. So the backend of X87 needs to maintain the X87 stack status
   between basic blocks during code generation. But for Turbofan backend, it can only handle discrete
   platform-related LIRs. It's difficult to maintain the x87 stack status during different basic blocks.
   So we use the register configuration selection mechanism to return different register configuration
   for X87 turbofan and crankshaft seperately.

   This CL is a follow-up of https://codereview.chromium.org/1405673003/.

BUG=

Review URL: https://codereview.chromium.org/1413343002

Cr-Commit-Position: refs/heads/master@{#31492}

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1409933003

Cr-Commit-Position: refs/heads/master@{#31491}

BUG=v8:4406
LOG=N

Review URL: https://codereview.chromium.org/1420543003

Cr-Commit-Position: refs/heads/master@{#31490}

It doesn't fail on tip of tree, we'll investigate if it recurs.

R=mstarzinger@chromium.org
BUG=v8:4493
LOG=N

Review URL: https://codereview.chromium.org/1416453004

Cr-Commit-Position: refs/heads/master@{#31489}

BUG=v8:4406
LOG=N

Review URL: https://codereview.chromium.org/1421733003

Cr-Commit-Position: refs/heads/master@{#31488}

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1418183002

Cr-Commit-Position: refs/heads/master@{#31487}

Fills out some more of the function prologue support in the
interpreter. Deals with creation of arguments objects and throwing
IllegalRedeclarations if necessary. Also adds (untested) support for
this.function and new.target variable assignment.

Also fixes a bug in Frames::is_java_script() to deal with
interpreter frames correctly.

Cleans up comments in builtins InterpreterEntryTrampoline about
missing prologue support.

Adds the following bytecodes:
  - CreateArgumentsSloppy
  - CreateArgumentsStrict

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1412953007

Cr-Commit-Position: refs/heads/master@{#31486}

Adds support for compound expressions for variables and named / keyed
property assignments.

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1420503002

Cr-Commit-Position: refs/heads/master@{#31485}

Adds support for count operations to the interpreter. Deals with count
operations on locals, globals, context allocated variables and named and
keyed properties.

Adds the following bytecodes:
  ToNumber
  Inc
  Dec

BUG=v8:4280
LOG=N
TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/1416623003

Cr-Commit-Position: refs/heads/master@{#31484}

Review URL: https://codereview.chromium.org/1416053007

Cr-Commit-Position: refs/heads/master@{#31483}

Unifies the global and unallocated variable type accesses given that
--global_var_shortcuts is going away. Lda/StaGlobal is modified to use
Load/StoreICs on the global object. The named LoadIC and StoreIC bytecodes
are also modified so that they take a constant pool entry index for the
name rather than a register, avoiding unecessary LdaConstant bytecodes to
be emitted.

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1419003002

Cr-Commit-Position: refs/heads/master@{#31482}

Review URL: https://codereview.chromium.org/1420473002

Cr-Commit-Position: refs/heads/master@{#31481}

BUG=v8:3330
LOG=n

Review URL: https://codereview.chromium.org/1415723005

Cr-Commit-Position: refs/heads/master@{#31480}

R=littledan@chromium.org
BUG=v8:4342
LOG=Y

Committed: https://crrev.com/722719fe31fe7fd5bb50be6256b3581bb28a8169
Cr-Commit-Position: refs/heads/master@{#31390}

Review URL: https://codereview.chromium.org/1412133002

Cr-Commit-Position: refs/heads/master@{#31479}

Review URL: https://codereview.chromium.org/1416273003

Cr-Commit-Position: refs/heads/master@{#31478}

TBR=machenbach@chromium.org
BUG=v8:4470
LOG=n

Review URL: https://codereview.chromium.org/1414963004 .

Cr-Commit-Position: refs/heads/master@{#31477}

    register configurations currently. This CL provides a mechanism so that
    optimizing compilers can select different Register Configuration.

BUG=

Review URL: https://codereview.chromium.org/1405673003

Cr-Commit-Position: refs/heads/master@{#31476}

This slightly generalizes the current mechnanism for property loads to
also deal with property stores (both monomorphic and polymorphic). It's
still somewhat adhoc, but it already handles a lot of the interesting
cases. We might want to wait for keyed accesses before we start
refactoring to a more general solution.

R=jarin@chromium.org
BUG=v8:4470
LOG=n

Review URL: https://codereview.chromium.org/1422573002

Cr-Commit-Position: refs/heads/master@{#31475}

BUG=v8:4507
LOG=y
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1409353005

Cr-Commit-Position: refs/heads/master@{#31474}

This reverts commit 581ead5c.

Review URL: https://codereview.chromium.org/1413123004

Cr-Commit-Position: refs/heads/master@{#31473}

R=bmeurer@chromium.org
TEST=webkit/fast/js/toString-number

Review URL: https://codereview.chromium.org/1410543007

Cr-Commit-Position: refs/heads/master@{#31472}

This switches inlining back to use a temporary zone for parsing and
analyzing inlinees. The inlinee graph however is still built in the
same zone as the parent graph.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1422503005

Cr-Commit-Position: refs/heads/master@{#31471}

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1417203003

Cr-Commit-Position: refs/heads/master@{#31470}

This moves the bailout point in the JSInliner up to a point where it is
still allowed to decide not to inline. Once the inlining decision has
been recorded with CompilationInfo::AddInlinedFunction, we should not
abort anymore.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1410023006

Cr-Commit-Position: refs/heads/master@{#31469}

The patch in https://crrev.com/ddb5c2d999c5ee6e31c4a9599bb3ddb293cc3f49
moved all fractional digit settings to default values due to a coding
error. These were not even correct default values, and users observed
errors where percentages were written as "23.0%" instead of "23%".

This patch fixes the setting propagation when appropriate and it changes
the default max fractional digits of a percentage to 0, per spec.

BUG=chromium:544122
R=mnita,jochen
CC=hichris123,adamk
LOG=Y

Review URL: https://codereview.chromium.org/1420883002

Cr-Commit-Position: refs/heads/master@{#31468}

R=cbruni@chromium.org

Review URL: https://codereview.chromium.org/1413173003

Cr-Commit-Position: refs/heads/master@{#31467}

port 81ee94b6 (r31410).

   contributed by zhengxing.li@intel.com

   original commit message:

   additional comment:
   The original r31410 patch needs some additional changes for x87
    1. The frames-x87.h is under src/x87 instead of src/crankshaft/x87

R=weiliang.lin@intel.com
BUG=

Review URL: https://codereview.chromium.org/1417193002

Cr-Commit-Position: refs/heads/master@{#31466}