This allows to pass deoptimization reasons to the profiler without the
requirement of always providing a source position. The absence of deopt
reasons is now communicated via a sentinel as the deopt id value. The
deoptimization reasons recently added to TurboFan are now passed to the
profiler.

R=bmeurer@chromium.org
TEST=cctest/test-cpu-profiler

Review-Url: https://codereview.chromium.org/2159793002
Cr-Commit-Position: refs/heads/master@{#37852}

R=adamk@chromium.org, littledan@chromium.org
BUG=
LOG=N

Review-Url: https://codereview.chromium.org/2154253002
Cr-Commit-Position: refs/heads/master@{#37851}

We need to pay attention to potential side effects from parameter
evaluation when inlining the fast case Array.prototype.shift.

R=yangguo@chromium.org
BUG=chromium:614644

Review-Url: https://codereview.chromium.org/2161943002
Cr-Commit-Position: refs/heads/master@{#37850}

Introduce a proper CodeStubAssembler::BranchIfToBooleanIsTrue helper
method, that branches to if_true/if_false labels depending on whether
the value that is passed would yield true or false when fed to
ToBoolean. Use this helper to implement the bytecode handlers w/o having
to materialize the temporary booleans and essentially branching twice.
The CodeStubAssembler::BranchIfToBooleanIsTrue helper favors the most
likely case of a Boolean constant now.

Also migrate the ToBooleanStub to a ToBoolean TurboFan builtin, that
also uses the helper method under the hood.

Remove the now obsolete Oddball::to_boolean field.

R=hpayer@chromium.org, rmcilroy@chromium.org, yangguo@chromium.org

Review-Url: https://codereview.chromium.org/2151163002
Cr-Commit-Position: refs/heads/master@{#37849}

Port of 26ecb4a1

TEST=mjsunit/es6/math-fround

Review-Url: https://codereview.chromium.org/2156123002
Cr-Commit-Position: refs/heads/master@{#37848}

Rolling v8/base/trace_event/common to f8c51e1c3b08cd1c03986f098732b87ba98a3475

Rolling v8/build to 1303552bdbd1791ad26b62f7c7052cbbf0326574

TBR=machenbach@chromium.org,vogelheim@chromium.org,hablich@chromium.org

Review-Url: https://codereview.chromium.org/2161933002
Cr-Commit-Position: refs/heads/master@{#37847}

BUG=

Review-Url: https://codereview.chromium.org/2158923002
Cr-Commit-Position: refs/heads/master@{#37846}

In case of deoptimization after WordCompare test, the control flow is lost in the
unoptimized version of the code because wrong register is used for comparision
(a0 instead of v0)

TEST=mjsunit/regress/regress-3717
BUG=

Review-Url: https://codereview.chromium.org/2160533003
Cr-Commit-Position: refs/heads/master@{#37845}

Review-Url: https://codereview.chromium.org/2160633002
Cr-Commit-Position: refs/heads/master@{#37844}

I want to use those methods from ApiNatives so move them to a shared
location.

BUG=
R=verwaest@chromium.org

Review-Url: https://codereview.chromium.org/2156153002
Cr-Commit-Position: refs/heads/master@{#37843}

Original issue's description:
> Don't compile functions in a context the caller doesn't have access to
>
> Instead just return undefined
>
> A side effect of this is that it's no longer possible to compile
> functions in a detached context.
>
> BUG=chromium:541703
> R=verwaest@chromium.org,bmeurer@chromium.org

BUG=chromium:541703
R=verwaest@chromium.org
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng

Review-Url: https://codereview.chromium.org/2155503004
Cr-Commit-Position: refs/heads/master@{#37842}

Broke in https://codereview.chromium.org/2116913002/ due
to rebase.

BUG=chromium:474921
NOTRY=true
TBR=jochen@chromium.org, dpranke@chromium.org

Review-Url: https://codereview.chromium.org/2156993002
Cr-Commit-Position: refs/heads/master@{#37841}

This is a first step towards reducing memory usage by scopes in the parser. Peak zone memory usage on octane-codeload goes down by ~10%

BUG=

Review-Url: https://codereview.chromium.org/2159573002
Cr-Commit-Position: refs/heads/master@{#37840}

BUG=chromium:474921
NOTRY=true
TBR=jochen@chromium.org, vogelheim@chromium.org

Review-Url: https://codereview.chromium.org/2156063003
Cr-Commit-Position: refs/heads/master@{#37839}

R=jgruber@chromium.org
BUG=v8:5197

Review-Url: https://codereview.chromium.org/2158793003
Cr-Commit-Position: refs/heads/master@{#37838}

Calling into JS from stack trace generation becomes an issue during
stack overflows: we'd detect a stack overflow, attempt to create an
exception, call into JS, detect a stack overflow, and repeat.

R=yangguo@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2147193002
Cr-Commit-Position: refs/heads/master@{#37837}

BUG=chromium:610407

Review-Url: https://codereview.chromium.org/2156073002
Cr-Commit-Position: refs/heads/master@{#37836}

When reading through the source code (v8.h) I found some minor typos
which I wanted to report.

BUG=

Review-Url: https://codereview.chromium.org/2130513002
Cr-Commit-Position: refs/heads/master@{#37835}

BUG=

Review-Url: https://codereview.chromium.org/2149663003
Cr-Commit-Position: refs/heads/master@{#37834}

The bug occurs because we do not canonicalize character class ranges
before adding case equivalents. While adding case equivalents, we abort
early for one-byte subject strings, assuming that the ranges are sorted.
Which they are not.

R=marja@chromium.org
BUG=v8:5199

Review-Url: https://codereview.chromium.org/2159683002
Cr-Commit-Position: refs/heads/master@{#37833}

This makes sure that we preserve call's tailness even if we have
introduced a loop exit between the call and the return.

BUG=chromium:628773

Review-Url: https://codereview.chromium.org/2155123002
Cr-Commit-Position: refs/heads/master@{#37832}

In int32 multiplication, if we have a positive integer as input, then we know we can't produce a -0 answer. The same is true if truncation is applied (x * y | 0). Without this information, we have to rather annoyingly check if the result of multiplication is 0, then OR the inputs to check for negativity, and possibly return -0. In TurboFan, we'll deopt in this case.

BUG=

Review-Url: https://codereview.chromium.org/2154073002
Cr-Commit-Position: refs/heads/master@{#37831}

R=bmeurer@chromium.org
BUG=v8:5197

Review-Url: https://codereview.chromium.org/2152923003
Cr-Commit-Position: refs/heads/master@{#37830}

LOG=N
BUG=v8:4124

Review-Url: https://codereview.chromium.org/2157873002
Cr-Commit-Position: refs/heads/master@{#37829}

Based on 317dc057.

BUG=

Review-Url: https://codereview.chromium.org/2152253002
Cr-Commit-Position: refs/heads/master@{#37828}

For angular.js on Speedometer, this results in 8.96%
speed up, i.e., the tests take on average 762ms
with this patch, 837ms without.

BUG= v8:5175

Review-Url: https://codereview.chromium.org/2134803002
Cr-Commit-Position: refs/heads/master@{#37827}

These tests seem to pass just fine.

R=titzer@chromium.org

BUG=v8:4795

Review-Url: https://codereview.chromium.org/2162433002
Cr-Commit-Position: refs/heads/master@{#37826}

BUG=
A bug in android-run.py, which caused the android_arm.release.check throws error:

data/local/tmp/v8/test/mjsunit/wasm/function-prototype.js:7: Error loading file

load("test/mjsunit/wasm/wasm-constants.js");

Review-Url: https://codereview.chromium.org/2070323002
Cr-Commit-Position: refs/heads/master@{#37825}

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

Review-Url: https://codereview.chromium.org/2153423002
Cr-Commit-Position: refs/heads/master@{#37824}

So far TurboFan wasn't adding the deoptimization reasons for eager/soft
deoptimization exits that can be used by either the DevTools profiler or
the --trace-deopt flag. This adds basic support for deopt reasons on
Deoptimize, DeoptimizeIf and DeoptimizeUnless nodes and threads through
the reasons to the code generation.

Also moves the DeoptReason to it's own file (to resolve include cycles)
and drops unused reasons.

R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2161543002
Cr-Commit-Position: refs/heads/master@{#37823}

Revert of Add force_dynamic_crt to build as static library but with /MD on windows (patchset #3 id:40001 of https://codereview.chromium.org/2149963002/ )

Reason for revert:
Fails gyp build with chromium:
https://build.chromium.org/p/tryserver.chromium.mac/builders/ios-simulator/builds/37051

Blocks roll:
https://codereview.chromium.org/2157903002/

Please add the trybot ios-simulator on reland.

Original issue's description:
> [build] Add force_dynamic_crt option to build a static library with /MD on windows
>
> Adds option to build a V8 library statically, but with the options on
> windows that allows it to be subsequently included in another DLL. On
> Windows this is required for it to correclty link against the correct
> C++ runtime. Require for our Node.js shared library build.
>
> Reference:  https://github.com/nodejs/node/pull/7487
>
> BUG=
> R=machenbach@chromium.org, michael_dawson@ca.ibm.com
>
> Committed: https://crrev.com/9cf88c1c364cf76c1e745aa63196768435e8ef5d
> Cr-Commit-Position: refs/heads/master@{#37814}

TBR=michael_dawson@ca.ibm.com,franzih@chromium.org,sxa@uk.ibm.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review-Url: https://codereview.chromium.org/2155073002
Cr-Commit-Position: refs/heads/master@{#37822}

Revert of [interpeter] Move to table based peephole optimizer. (patchset #38 id:730001 of https://codereview.chromium.org/2118183002/ )

Reason for revert:
Break MIPS port.

Original issue's description:
> [interpeter] Move to table based peephole optimizer.
>
> Introduces a lookup table for peephole optimizations.
>
> Fixes some tests using BytecodePeepholeOptimizer::Write() that should
> have been update to use BytecodePeepholeOptimizer::WriteJump().
>
> BUG=v8:4280
> LOG=N
>
> Committed: https://crrev.com/f4234422b93b21a286b0f31799009bcbe8b90b9e
> Cr-Commit-Position: refs/heads/master@{#37819}

TBR=rmcilroy@chromium.org,machenbach@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4280

Review-Url: https://codereview.chromium.org/2161563002
Cr-Commit-Position: refs/heads/master@{#37821}

R=bmeurer@chromium.org
BUG=v8:5197

Review-Url: https://codereview.chromium.org/2155633002
Cr-Commit-Position: refs/heads/master@{#37820}

Introduces a lookup table for peephole optimizations.

Fixes some tests using BytecodePeepholeOptimizer::Write() that should
have been update to use BytecodePeepholeOptimizer::WriteJump().

BUG=v8:4280
LOG=N

Review-Url: https://codereview.chromium.org/2118183002
Cr-Commit-Position: refs/heads/master@{#37819}

This fixes the deoptimization information for the lazy bailout point
after a [[ToObject]] operation inserted for with statements. The result
value was pushed on the operand stack but erroneously ignored and left
on the operand stack by the FullCodeGenerator.

R=jarin@chromium.org
TEST=mjsunit/regress/regress-5205
BUG=v8:5205

Review-Url: https://codereview.chromium.org/2158443002
Cr-Commit-Position: refs/heads/master@{#37818}

crbug.com/518788 looks like AstValueFactory::strings_ would contain
nullptrs which shouldn't be possible. This CL makes us crash earlier
before putting nullptrs into it. It's paranoid, since Zone should
already crash before returning nullptr.

BUG=518788
LOG=n
R=adamk@chromium.org

Review-Url: https://codereview.chromium.org/2156513002
Cr-Commit-Position: refs/heads/master@{#37817}

BUG=

Review-Url: https://codereview.chromium.org/2145753006
Cr-Commit-Position: refs/heads/master@{#37816}

Highlights:
- Record all imports and exports in the ModuleDescriptor.
- Remove ImportDeclaration; instead, introduce a new variable kind for imports.
- Set name on default exported anonymous functions.

Still to do: declaration of namespace imports.

BUG=v8:1569

Review-Url: https://codereview.chromium.org/2108193003
Cr-Commit-Position: refs/heads/master@{#37815}

Adds option to build a V8 library statically, but with the options on
windows that allows it to be subsequently included in another DLL. On
Windows this is required for it to correclty link against the correct
C++ runtime. Require for our Node.js shared library build.

Reference:  https://github.com/nodejs/node/pull/7487

BUG=
R=machenbach@chromium.org, michael_dawson@ca.ibm.com

Review-Url: https://codereview.chromium.org/2149963002
Cr-Commit-Position: refs/heads/master@{#37814}

Review-Url: https://codereview.chromium.org/2161503002
Cr-Commit-Position: refs/heads/master@{#37813}