Port 99f8d57f

Original commit message:
Basically recognize certain x < y ? x : y constructs and turn that into
Float64Min/Float64Max operations, if the target machine supports that.
On x86 we lower to (v)minsd/(v)maxsd.

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/998283002

Cr-Commit-Position: refs/heads/master@{#27160}

R=danno@chromium.org, svenpanne@chromium.org

BUG=

Review URL: https://codereview.chromium.org/1005693002

Cr-Commit-Position: refs/heads/master@{#27174}

Port d4696c48

Original commit message:
This moves the decision whether to report a message or not to when
the pending exception is propagated instead of trying to preserve the
decision in a ThreadLocalTop field.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/998943003

Cr-Commit-Position: refs/heads/master@{#27150}

R=danno@chromium.org, svenpanne@chromium.org, titzer@chromium.org

BUG=

Review URL: https://codereview.chromium.org/1000963002

Cr-Commit-Position: refs/heads/master@{#27173}

Reduces the amount of custom support code for Math functions in TurboFan
and allows for more general inlining (i.e. independent of parameter
types).

BUG=v8:3952
LOG=n
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1004083002

Cr-Commit-Position: refs/heads/master@{#27172}

BUG=chromium:464695
LOG=n

Review URL: https://codereview.chromium.org/1005553003

Cr-Commit-Position: refs/heads/master@{#27171}

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1004763002

Cr-Commit-Position: refs/heads/master@{#27170}

BUG=

Review URL: https://codereview.chromium.org/1006523002

Cr-Commit-Position: refs/heads/master@{#27169}

Port 99f8d57f

Original commit message:
Basically recognize certain x < y ? x : y constructs and turn that into
Float64Min/Float64Max operations, if the target machine supports that.
On x86 we lower to (v)minsd/(v)maxsd.

BUG=

Review URL: https://codereview.chromium.org/1006513002

Cr-Commit-Position: refs/heads/master@{#27168}

For ES5 the file names always included the whole path, like this:

  ch15/15.2/15.2.3/15.2.3.14/15.2.3.14-1-3.js

For ES6 this is no longer true:

  language/computed-property-names/basics/symbol.js
  language/computed-property-names/class/method/symbol.js

To allow the status file to correctly identify the right test we need
to change the reported test name to include the whole path.

BUG=None
LOG=N
R=rossberg@chromium.org, machenbach@chromium.org

Review URL: https://codereview.chromium.org/1001613002

Cr-Commit-Position: refs/heads/master@{#27167}

R=verwaest@chromium.org

BUG=

Review URL: https://codereview.chromium.org/1002703002

Cr-Commit-Position: refs/heads/master@{#27166}

The order should match the one for normal natives.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/988513003

Cr-Commit-Position: refs/heads/master@{#27165}

Also add missing defines for arm simulator build

BUG=v8:3841
R=machenbach@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/874393007

Cr-Commit-Position: refs/heads/master@{#27164}

e8b9f2d7 introduced a different cast which broke building on Illumos.
Revert to previous behavior for V8_OS_SOLARIS only.

Found on SmartOS while building with gcc 4.9.0.

edit1: adding jochen to reviewers since he was assigned through the issue tracker and danno since he seems to do a fair amount of cross-platform work

edit2: removing BUG reference because I don't understand what LOG needs to contain (and it seems to link to chromium and not the v8 repo). Please edit commit message as appropriate.

BUG=3935
LOG=n

Review URL: https://codereview.chromium.org/990063002

Cr-Commit-Position: refs/heads/master@{#27163}

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1004673002

Cr-Commit-Position: refs/heads/master@{#27162}

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1000063002

Cr-Commit-Position: refs/heads/master@{#27161}

Basically recognize certain x < y ? x : y constructs and turn that into
Float64Min/Float64Max operations, if the target machine supports that.
On x86 we lower to (v)minsd/(v)maxsd.

R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/998283002

Cr-Commit-Position: refs/heads/master@{#27160}

BUG=v8:3958, 450942
LOG=N
R=arv@chromium.org

Review URL: https://codereview.chromium.org/996223003

Cr-Commit-Position: refs/heads/master@{#27159}

Port d4696c48

Original commit message:
This moves the decision whether to report a message or not to when
the pending exception is propagated instead of trying to preserve the
decision in a ThreadLocalTop field.

BUG=

Review URL: https://codereview.chromium.org/1004623002

Cr-Commit-Position: refs/heads/master@{#27158}

This introduces a choke point in the AstGraphBuilder for property
access creation. This makes it easier to enrich all such nodes with
additional side-table or debugging information.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1002713002

Cr-Commit-Position: refs/heads/master@{#27157}

It should be possible to cast a Value to Int32 without throwing an exception
when IsInt32() is true. Same for Uint32.

BUG=chromium:462402
LOG=Y

Review URL: https://codereview.chromium.org/1003663002

Cr-Commit-Position: refs/heads/master@{#27156}

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1002673002

Cr-Commit-Position: refs/heads/master@{#27155}

BUG=chromium:460917
LOG=Y

Review URL: https://codereview.chromium.org/1000893003

Cr-Commit-Position: refs/heads/master@{#27154}

Cleanup: Better helpers, unified line splitting. Also asserting that without
strong mode, the snippets don't produce errors.

Fix: The eval related tests were wrong (we didn't make sure that the error
thrown comes from strong scoping and is not a normal runtime error).

BUG=v8:3956
LOG=N

Review URL: https://codereview.chromium.org/993393002

Cr-Commit-Position: refs/heads/master@{#27153}

Port 84e90b2d

Original commit message:
Four tests are failing due to a problem with no frame ranges.

TEST=cctest/test-cpu-profiler/CollectDeoptEvents
BUG=

Review URL: https://codereview.chromium.org/1000723002

Cr-Commit-Position: refs/heads/master@{#27152}

TBR=verwaest@chromium.org

BUG=466086
LOG=N

Review URL: https://codereview.chromium.org/998213002

Cr-Commit-Position: refs/heads/master@{#27151}

This moves the decision whether to report a message or not to when
the pending exception is propagated instead of trying to preserve the
decision in a ThreadLocalTop field.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/998943003

Cr-Commit-Position: refs/heads/master@{#27150}

We can reduce the number of type feedback vector slots required, and
also reduce IC misses.

Review URL: https://codereview.chromium.org/1001533002

Cr-Commit-Position: refs/heads/master@{#27149}

A diamond is unused if the Merge node has no Phi/EffectPhi uses, exactly
two inputs, one IfTrue and one IfFalse, which have the same Branch
control input and no other uses except for the Merge. In this case the
diamond can safely be removed.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1000883003

Cr-Commit-Position: refs/heads/master@{#27148}

TBR=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1004583002

Cr-Commit-Position: refs/heads/master@{#27147}

... and improve protection against trampoline table generation in this
sequence.

R=danno@chromium.org, svenpanne@chromium.org

BUG=

Review URL: https://codereview.chromium.org/985933003

Cr-Commit-Position: refs/heads/master@{#27146}

The test/cctest/cctest.status and test/mjsunit/mjsunit.status
tests now pass under the simulator so removing these
excludes

	modified:   test/cctest/cctest.status
	modified:   test/mjsunit/mjsunit.status

R=danno@chromium.org, svenpanne@chromium.org

BUG=

Review URL: https://codereview.chromium.org/995393003

Cr-Commit-Position: refs/heads/master@{#27145}

Port f71e2626

Original commit message:
This removes the separate tracking of the pending message script,
because that script is already stored in the message object and
duplicating it in the ThreadLocalTop makes it more brittle.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/995013005

Cr-Commit-Position: refs/heads/master@{#27127}

R=danno@chromium.org, svenpanne@chromium.org

BUG=

Review URL: https://codereview.chromium.org/999093002

Cr-Commit-Position: refs/heads/master@{#27144}

Since recursive modules are gone, only the top-level scope can have
module inner scopes. Rename Scope::AllocateModulesRecursively to
Scope::AllocateModules, and add test showing the module Variables
are still allocated appropriately in the top level scope.

BUG=v8:1569,v8:3940
LOG=n

Review URL: https://codereview.chromium.org/999893003

Cr-Commit-Position: refs/heads/master@{#27143}

We need the v8 snapshot to be compiled on the host cpu (the
machine doing the build), but using generated code that has the
same pointer size as the target_arch; i.e., for 32-bit arm builds,
we need to use a 32-bit x86 host binary, not a 64-bit host binary.

The easiest way to ensure that this happens is to just specify
a custom toolchain in GN to use to build the snapshot.

R=jochen@chromium.org, cjhopman@chromium.org
BUG=465456, 395249
LOG=Y

Review URL: https://codereview.chromium.org/993173003

Cr-Commit-Position: refs/heads/master@{#27142}

The problem is that tagged slot could become a double slot after migrating of an object to another map with "shifted" fields (for example as a result of generalizing immutable data property to a data field).
This CL also adds useful machinery that helps triggering incremental write barriers.

BUG=chromium:454297, chromium:465273
LOG=Y

Review URL: https://codereview.chromium.org/988363002

Cr-Commit-Position: refs/heads/master@{#27141}

Port f71e2626

Original commit message:
This removes the separate tracking of the pending message script,
because that script is already stored in the message object and
duplicating it in the ThreadLocalTop makes it more brittle.

BUG=

Review URL: https://codereview.chromium.org/999763003

Cr-Commit-Position: refs/heads/master@{#27140}

Port a925f3f4

Original commit message:
The same idea as in https://codereview.chromium.org/984893003/

BUG=chromium:452067
LOG=n

Review URL: https://codereview.chromium.org/993233003

Cr-Commit-Position: refs/heads/master@{#27139}

This further reduces the context size.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/996213003

Cr-Commit-Position: refs/heads/master@{#27138}

Outside of runtime.h, only the distinction between intrinsics
returning pairs and those returning pairs is really meaningful, not
the internal traditional partitioning of them.

BUG=v8:3947
LOG=n

Review URL: https://codereview.chromium.org/997933003

Cr-Commit-Position: refs/heads/master@{#27137}

cctest/test-deoptimization/DeoptimizeCompare was failing on PPC because the path that is optimized for isel incorrectly used integer values instead of Smi's

BUG=

Review URL: https://codereview.chromium.org/996223002

Cr-Commit-Position: refs/heads/master@{#27136}

Combined the various lists, the only slightly ugly thing is now the
distinction between intrinsics returning pairs and the rest, but
that's no big deal.

BUG=v8:3947
LOG=n

Review URL: https://codereview.chromium.org/989273003

Cr-Commit-Position: refs/heads/master@{#27135}