BUG=v8:4822

Review-Url: https://codereview.chromium.org/2097473002
Cr-Commit-Position: refs/heads/master@{#37215}

BUG=chromium:603144

Review-Url: https://codereview.chromium.org/2083353002
Cr-Commit-Position: refs/heads/master@{#37214}

Lowering of Int64Load, Int64Store, BitcastInt64ToFloat64 and
BitcastFloat64ToInt64 was using LE word ordering in memory,
causing failures on some tests.

BUG=mjsunit/regress/regress-599719,mjsunit/regress/regress-599717

Review-Url: https://codereview.chromium.org/2080213004
Cr-Commit-Position: refs/heads/master@{#37213}

CMN is a flag-setting add operation, and therefore is commutative.
{Add,Sub}WithOverflow generate ADD/SUB instructions that cannot
support a ROR shift.

BUG=

Review-Url: https://codereview.chromium.org/2087233005
Cr-Commit-Position: refs/heads/master@{#37212}

R=jgruber@chromium.org
BUG=v8:5117

Review-Url: https://codereview.chromium.org/2093613002
Cr-Commit-Position: refs/heads/master@{#37211}

As part of the page type unification also unify page iterators. Iterating
over a space works the same for all spaces now (new, old, lo).

Iterating over pages of a space follows now the regular C++ iterator pattern:
- for (auto it = space->begin(); it != space->end(); ++it) {}
- for (Page* p : *space) {}

GC only: Loop supporting unlinking/freeing of a Page on the fly:
  for (auto it = space->begin(); != space->end();) {
    Page* p = *(it++);
    p->Unlink();
  }

For iteration of a range of new space pages use NewSpacePageRange which
also verifies that the range is actually a proper new space page range.

BUG=chromium:581412
LOG=N

Review-Url: https://codereview.chromium.org/2088223002
Cr-Commit-Position: refs/heads/master@{#37210}

BUG=chromium:622351
LOG=N
R=jochen@chromium.org

Review-Url: https://codereview.chromium.org/2097453002
Cr-Commit-Position: refs/heads/master@{#37209}

The redundancy elimination is currently a graph reducer that tries to
combine redundant checks in the effect chain. It does this by
propagating the checks that happened along effect paths, which is pretty
similar to what the BranchElimination does on the control chain. We run
this reducer together with the other optimizations right after the
representation selection.

An upcoming CL will extend the redundancy elimination to also eliminate
redundant loads (and eventually map checks).

R=jarin@chromium.org
BUG=v8:5141

Review-Url: https://codereview.chromium.org/2091503003
Cr-Commit-Position: refs/heads/master@{#37208}

BUG=chromium:620650

Review-Url: https://codereview.chromium.org/2086343002
Cr-Commit-Position: refs/heads/master@{#37207}

R=danno@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2088393002
Cr-Commit-Position: refs/heads/master@{#37206}

Rolling v8/build to 7194daf8360db4618456185d29db524cdc153bb4

Rolling v8/tools/mb to a7c3a793cc06ce1703347c2d2eeac6a94ac16b4d

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

Review-Url: https://codereview.chromium.org/2094603002
Cr-Commit-Position: refs/heads/master@{#37205}

Revert of Include file names in trace_turbo output (patchset #3 id:40001 of https://codereview.chromium.org/2083863004/ )

Reason for revert:
Many build bots are failing with a message of the form:

Missing or invalid v8 JSON file: /tmp/tmp2qcEUy_swarming/0/output.json

Can be relanded once we understand why these failures are occuring.

Original issue's description:
> Include file names in trace_turbo output
>
> The trace turbo output will overwrite itself when functions in different
> files share the same name. Output files now have the form
> `turbo-<function_name>:<opt_file_name>-<opt_phase>.suffix`.
>
> R=ofrobots@google.com
> BUG=
>
> Committed: https://crrev.com/a53b9bf02f31e5647c37e0392afa19f74df1a3ba
> Cr-Commit-Position: refs/heads/master@{#37199}

TBR=ofrobots@google.com,bmeurer@chromium.org,danno@chromium.org
# 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/2083153004
Cr-Commit-Position: refs/heads/master@{#37204}

Remove second wasm module compilation and instantiation path that
we had in CompileAndRunWasmModule and reuse the same path used
by user code.

BUG=

Review-Url: https://codereview.chromium.org/2091533002
Cr-Commit-Position: refs/heads/master@{#37203}

Reland of write scopes of non-simple default arguments (patchset #1 id:1 of https://codereview.chromium.org/2081323006/ )

Reason for revert:
Infra issue appears to be over

TBR=adamk@chromium.org

Original issue's description:
> Revert of Rewrite scopes of non-simple default arguments (patchset #5 id:80001 of https://codereview.chromium.org/2077283004/ )
>
> Reason for revert:
> Seems to close tree (but it could be an infra issue)
>
> Original issue's description:
> > Rewrite scopes of non-simple default arguments
> >
> > Default parameters have additional declaration block scopes inserted
> > around them when something in the function scope calls eval. This
> > patch sets the parent scope of the expressions introduced due to
> > those defaults to the new block scope.
> >
> > R=adamk
> > BUG=chromium:616386
> >
> > Committed: https://crrev.com/0e14baf712955a1993f742647bb2adc293702b80
> > Cr-Commit-Position: refs/heads/master@{#37198}
>
> TBR=adamk@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=chromium:616386
>
> Committed: https://crrev.com/dd50262933d2ac087da32be887a7c18385fd998e
> Cr-Commit-Position: refs/heads/master@{#37201}

TBR=adamk@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:616386

Review-Url: https://codereview.chromium.org/2086353003
Cr-Commit-Position: refs/heads/master@{#37202}

Revert of Rewrite scopes of non-simple default arguments (patchset #5 id:80001 of https://codereview.chromium.org/2077283004/ )

Reason for revert:
Seems to close tree (but it could be an infra issue)

Original issue's description:
> Rewrite scopes of non-simple default arguments
>
> Default parameters have additional declaration block scopes inserted
> around them when something in the function scope calls eval. This
> patch sets the parent scope of the expressions introduced due to
> those defaults to the new block scope.
>
> R=adamk
> BUG=chromium:616386
>
> Committed: https://crrev.com/0e14baf712955a1993f742647bb2adc293702b80
> Cr-Commit-Position: refs/heads/master@{#37198}

TBR=adamk@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:616386

Review-Url: https://codereview.chromium.org/2081323006
Cr-Commit-Position: refs/heads/master@{#37201}

BUG=620855

Review-Url: https://codereview.chromium.org/2074283002
Cr-Commit-Position: refs/heads/master@{#37200}

The trace turbo output will overwrite itself when functions in different
files share the same name. Output files now have the form
`turbo-<function_name>:<opt_file_name>-<opt_phase>.suffix`.

R=ofrobots@google.com
BUG=

Review-Url: https://codereview.chromium.org/2083863004
Cr-Commit-Position: refs/heads/master@{#37199}

Default parameters have additional declaration block scopes inserted
around them when something in the function scope calls eval. This
patch sets the parent scope of the expressions introduced due to
those defaults to the new block scope.

R=adamk
BUG=chromium:616386

Review-Url: https://codereview.chromium.org/2077283004
Cr-Commit-Position: refs/heads/master@{#37198}

We would otherwise also count if its just trimming whitespaces.

R=adamk@chromium.org
BUG=chromium:618595

Review-Url: https://codereview.chromium.org/2080183003
Cr-Commit-Position: refs/heads/master@{#37197}

R=adamk@chromium.org
BUG=chromium:621496
LOG=N

Review-Url: https://codereview.chromium.org/2084703005
Cr-Commit-Position: refs/heads/master@{#37196}

Currently CpuProfiler is a subclass of CodeEventListener, it listens code events
from Logger, constructs and stores CodeEventsContainer. This patch is part of
the effort to split the logic of CodeEventListener as ProfilerListener out of
the profiling functionality logic in CpuProfiler. A ProfilerListener will listen
to code events, construct code event to CodeEventsContainer and pass it to code
event handler.

The reason we refactor CpuProfiler is that eventually we want to move
CpuProfiler as part of sampler library and code event listener should stay
inside V8.

Main changes:
1. Refactored CpuProfiler into two parts, the CpuProfiler with profling
functionality and the ProfilerListener listening to code events from Logger.
2. Created CodeEventObserver and made CpuProfiler inherit from it.
ProfilerListener will have a list of observers and call CodeEventHandler once a
code event is created.
3. Moved code entry list from CodeEntry to ProfilerListener.

Minor changes:
1. Moved static code entry as part of CodeEntry.
2. Added ProfilerListener to Logger.

BUG=v8:4789

Committed: https://crrev.com/cb59fc1facc9b390e2c7544b4da56a4e0a9b3222
Review-Url: https://codereview.chromium.org/2053523003
Cr-Original-Commit-Position: refs/heads/master@{#37112}
Cr-Commit-Position: refs/heads/master@{#37195}

BUG=v8:4483

Review-Url: https://codereview.chromium.org/2083653003
Cr-Commit-Position: refs/heads/master@{#37194}

Because --help does not show how to use boolean flags.

R=jkummerow@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2087223002
Cr-Commit-Position: refs/heads/master@{#37193}

BUG=
LOG=no

Review-Url: https://codereview.chromium.org/2085043005
Cr-Commit-Position: refs/heads/master@{#37192}

BUG=

Review-Url: https://codereview.chromium.org/2085273002
Cr-Commit-Position: refs/heads/master@{#37191}

BUG=
LOG=no

Review-Url: https://codereview.chromium.org/2084823004
Cr-Commit-Position: refs/heads/master@{#37190}

Updates kProfilerTicksBeforeBaseline in runtime-profiler to allow
functions to switch from ignition to full-codgen earlier. This helps
on many benchmarks and does not impact the code size significantly.

BUG=v8:4280
LOG=N

Review-Url: https://codereview.chromium.org/2085153003
Cr-Commit-Position: refs/heads/master@{#37189}

BUG=chromium:616035
NOTRY=true

Review-Url: https://codereview.chromium.org/2088963003
Cr-Commit-Position: refs/heads/master@{#37188}

BUG=chromium:609107
R=machenbach@chromium.org

Review-Url: https://codereview.chromium.org/2081323004
Cr-Commit-Position: refs/heads/master@{#37187}

TBR=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2087803005
Cr-Commit-Position: refs/heads/master@{#37186}

Adds support for intrinsics which can be called as stubs. Namely:
 - HasProperty
 - MathPow
 - NewObject
 - NumberToString
 - RegExpConstructResult
 - RegExpExec
 - Substring
 - ToString
 - ToName
 - ToLength
 - ToNumber
 - ToObject

Also adds interface descriptors for stub calls which have arguments
passed on the stack.

BUG=v8:4280
LOG=N

Review-Url: https://codereview.chromium.org/2051573002
Cr-Commit-Position: refs/heads/master@{#37185}

The missing part from
  https://codereview.chromium.org/2078403002/

R=jochen@chromium.org
BUG=chromium:621869
LOG=N

Review-Url: https://codereview.chromium.org/2077353004
Cr-Commit-Position: refs/heads/master@{#37184}

If the semaphore is stored as a local variable in {CompileInParallel},
then the semaphore was sometimes deallocated too early and caused
the compilation tasks to crash. This only happens with libc-2.19,
libc-2.21 fixes the problem.

R=mlippautz@chromium.org, rossberg@chromium.org

Review-Url: https://codereview.chromium.org/2080223006
Cr-Commit-Position: refs/heads/master@{#37183}

Receiver is the hole when we construct a builtin object.

BUG=chromium:611684

Review-Url: https://codereview.chromium.org/2083163003
Cr-Commit-Position: refs/heads/master@{#37182}

Previously only stubs built in the snapshot were checked for having an
eager frame. This caused a regression to creap in on ia32 for
RegExpConstructResultStub. Change test to always check.

CQ_EXTRA_TRYBOTS=tryserver.v8:v8_linux_nosnap_dbg

Review-Url: https://codereview.chromium.org/2089673002
Cr-Commit-Position: refs/heads/master@{#37181}

The CL avoids superfluous conversions / reboxing and handlescopes.

BUG=

Review-Url: https://codereview.chromium.org/2089703004
Cr-Commit-Position: refs/heads/master@{#37180}

This way embedders don't have to manually convert them to strings

BUG=chromium:619166
R=verwaest@chromium.org

Review-Url: https://codereview.chromium.org/2085223002
Cr-Commit-Position: refs/heads/master@{#37179}

R=vogelheim@chromium.org

Review-Url: https://codereview.chromium.org/2083303002
Cr-Commit-Position: refs/heads/master@{#37178}

Review-Url: https://codereview.chromium.org/2066313002
Cr-Commit-Position: refs/heads/master@{#37177}

- Moves the most often used 32 items to the top. This shaves off 10kB
  from the startup snapshot size.
- Sorts the rest by usage and type.

R=mlippautz@chromium.org

Review-Url: https://codereview.chromium.org/2088023003
Cr-Commit-Position: refs/heads/master@{#37176}