This enables tests which rely on the context available at "debugger"
statements to be accurate. This is the case by now when deoptimization
information is available.

R=yangguo@chromium.org
BUG=v8:4055

Review URL: https://codereview.chromium.org/2129123002 .

Cr-Commit-Position: refs/heads/master@{#37604}

Revert of [gn] Switch gcc bots to gn (patchset #3 id:40001 of https://codereview.chromium.org/2124263002/ )

Reason for revert:
There are a bunch of goma errors on the gcc bot now. Maybe connected to this CL.

https://build.chromium.org/p/tryserver.v8/builders/v8_linux_gcc_compile_rel/builds/19068

Original issue's description:
> [gn] Switch gcc bots to gn
>
> BUG=chromium:474921
>
> Committed: https://crrev.com/73f154ba601dc70c4007968fa902d4beacba4393
> Cr-Commit-Position: refs/heads/master@{#37580}

TBR=vogelheim@chromium.org,jochen@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:474921

Review-Url: https://codereview.chromium.org/2130303002
Cr-Commit-Position: refs/heads/master@{#37603}

R=bmeurer@chromium.org, mstarzinger@chromium.org, rmcilroy@chromium.org

Review-Url: https://codereview.chromium.org/2112853002
Cr-Commit-Position: refs/heads/master@{#37602}

Handles are necessary in wasm::GetDebugInfo because a GC can be
triggered in this function.

R=titzer@chromium.org, mstarzinger@chromium.org

Review-Url: https://codereview.chromium.org/2132553002
Cr-Commit-Position: refs/heads/master@{#37601}

BUG=

Review-Url: https://codereview.chromium.org/2126423002
Cr-Commit-Position: refs/heads/master@{#37600}

BUG=

Review-Url: https://codereview.chromium.org/2125023004
Cr-Commit-Position: refs/heads/master@{#37599}

BUG=v8:5173
R=bmeurer@chromium.org

Review-Url: https://codereview.chromium.org/2118283003
Cr-Commit-Position: refs/heads/master@{#37598}

Fix a TypeError when putting together the invocationText for a symbol
method's stack frame.

See https://github.com/nodejs/node/issues/7536.

Review-Url: https://codereview.chromium.org/2122793003
Cr-Commit-Position: refs/heads/master@{#37597}

Reland of [esnext] ship --harmony-object-values-entries (patchset #1 id:1 of https://codereview.chromium.org/2129533004/ )

Reason for revert:
Performance stayed the same after the revert; relanding.

Original issue's description:
> Revert of [esnext] ship --harmony-object-values-entries (patchset #1 id:1 of https://codereview.chromium.org/2116053003/ )
>
> Reason for revert:
> Revert to see if it addresses the performance regression observed in chromium:625956 in automated graphs
>
> Original issue's description:
> > [esnext] ship --harmony-object-values-entries
> >
> > BUG=v8:4663
> > R=littledan@chromium.org, adamk@chromium.org
> >
> > Committed: https://crrev.com/ab529234853a1768642f8f6c907aaaa5ea8b19bf
> > Cr-Commit-Position: refs/heads/master@{#37485}
>
> TBR=adamk@chromium.org,caitpotter88@gmail.com
> # Not skipping CQ checks because original CL landed more than 1 days ago.
> BUG=v8:4663
>
> Committed: https://crrev.com/1177750a98faaa11e92ece13b70115bf704baf3b
> Cr-Commit-Position: refs/heads/master@{#37566}

TBR=adamk@chromium.org,caitpotter88@gmail.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4663

Review-Url: https://codereview.chromium.org/2127253002
Cr-Commit-Position: refs/heads/master@{#37596}

Drive-by-fix: hydrogen code does not blindly return the
byteLength offset, instead it executes what is defined
in the byteLength getter.

BUG=

Review-Url: https://codereview.chromium.org/2123263002
Cr-Commit-Position: refs/heads/master@{#37595}

Such an object can be used to later create a context from it. It has to
have access checks with handlers enabled, as it cannot be accessed
otherwise.

BUG=chromium:618305
R=verwaest@chromium.org

Review-Url: https://codereview.chromium.org/2107673003
Cr-Commit-Position: refs/heads/master@{#37594}

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

Review-Url: https://codereview.chromium.org/2126793004
Cr-Commit-Position: refs/heads/master@{#37593}

BUG=pdfium:38

Review-Url: https://codereview.chromium.org/2113413002
Cr-Commit-Position: refs/heads/master@{#37592}

BUG=v8:4909
R=hpayer@chromium.org

Review-Url: https://codereview.chromium.org/2129933002
Cr-Commit-Position: refs/heads/master@{#37591}

This enables tests which rely on the context available at "debugger"
statements to be accurate. This is the case by now when deoptimization
information is available.

R=mvstanton@chromium.org
BUG=v8:4035

Review-Url: https://codereview.chromium.org/2125773005
Cr-Commit-Position: refs/heads/master@{#37590}

R=mvstanton@chromium.org

Review-Url: https://codereview.chromium.org/2127093002
Cr-Commit-Position: refs/heads/master@{#37589}

Review-Url: https://codereview.chromium.org/2110343003
Cr-Commit-Position: refs/heads/master@{#37588}

This should recover the regression caused by https://codereview.chromium.org/1993653003.
(Same sympthoms as in http://crbug/619016).

BUG=chromium:624309

Review-Url: https://codereview.chromium.org/2127103002
Cr-Commit-Position: refs/heads/master@{#37587}

Port de369129

Original commit message:

In the current implementation of wasm an unrepresentable input of the
float32-to-int32 conversion is detected by first truncating the input, then
converting the truncated input to int32 and back to float32, and then checking
whether the result is the same as the truncated input.

This input check does not work on arm and arm64 for an input of (INT32_MAX + 1)
because on these platforms the float32-to-int32 conversion results in INT32_MAX
if the input is greater than INT32_MAX.  When INT32_MAX is converted back to
float32, then the result is (INT32_MAX + 1) again because INT32_MAX cannot be
represented precisely as float32, and rounding-to-nearest results in (INT32_MAX
+ 1). Since (INT32_MAX + 1) equals the truncated input value, the input appears
to be representable.

With the changes in this CL, the result of the float32-to-int32 conversion is
incremented by 1 if the original result was INT32_MAX. Thereby the detection of
unrepresenable inputs in wasm works. Note that since INT32_MAX cannot be
represented precisely in float32, it can also never be a valid result of the
float32-to-int32 conversion.

BUG=cctest/test-run-wasm/RunWasmCompiled_I32SConvertF32,cctest/test-run-wasm/RunWasmCompiled_I32UConvertF32

Review-Url: https://codereview.chromium.org/2130763002
Cr-Commit-Position: refs/heads/master@{#37586}

Now LookupIterator follows the same pattern of prepare transition, apply transition
and write value when adding new properties to dictionary objects.

JSGlobalObject case:
* Prepare transition phase ensures that there is a "transition" property cell
  prepared for receiving a value.
* Apply transition phase does nothing.
* Prepare for data property phase ensures that the existing property cell can
  receive the value.
* Write value phase writes value directly to the current property cell.

JSObject case:
* Prepare transition phase prepares the object for receiving a data value (which
  could switch an object to dictionary mode).
* Apply transition phase migrates object to a transition map. If the map happened
  to be a dictionary mode object's map then an uninitialized entry added to the
  properties dictionary.
* Prepare for data property phase does nothing.
* Write value phase just puts value to the properties dictionary.

BUG=chromium:576312

Review-Url: https://codereview.chromium.org/2127583002
Cr-Commit-Position: refs/heads/master@{#37585}

R=mvstanton@chromium.org
BUG=v8:4458

Review-Url: https://codereview.chromium.org/2129903002
Cr-Commit-Position: refs/heads/master@{#37584}

R=mvstanton@chromium.org

Review-Url: https://codereview.chromium.org/2132503002
Cr-Commit-Position: refs/heads/master@{#37583}

In AstNumberingVisitor we always know what node we're dealing with, so there's no reason for this method to be virtual. This additionally deletes 3 calls to AssignFeedbackVectorSlots that would always end up in the empty version.

BUG=

Review-Url: https://codereview.chromium.org/2128613003
Cr-Commit-Position: refs/heads/master@{#37582}

For motivation see the bug.

BUG=625865
LOG=NO

Review-Url: https://codereview.chromium.org/2121273002
Cr-Commit-Position: refs/heads/master@{#37581}

BUG=chromium:474921

Review-Url: https://codereview.chromium.org/2124263002
Cr-Commit-Position: refs/heads/master@{#37580}

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

Review-Url: https://codereview.chromium.org/2130723002
Cr-Commit-Position: refs/heads/master@{#37579}

BUG=chromium:626256
LOG=NO

Review-Url: https://codereview.chromium.org/2126193002
Cr-Commit-Position: refs/heads/master@{#37578}

BUG=v8:5181

Review-Url: https://codereview.chromium.org/2129563002
Cr-Commit-Position: refs/heads/master@{#37577}

This changes the last few remaining RUNTIME_ASSERT calls that need to be
intentionally robust because fuzzers or other callers can invoke the
runtime functions in question with unsafe arguments.

R=yangguo@chromium.org
BUG=v8:5066

Review-Url: https://codereview.chromium.org/2122173003
Cr-Commit-Position: refs/heads/master@{#37576}

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

Review-Url: https://codereview.chromium.org/2124003003
Cr-Commit-Position: refs/heads/master@{#37575}

Needed for https://codereview.chromium.org/2124263002/

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

Review-Url: https://codereview.chromium.org/2125703005
Cr-Commit-Position: refs/heads/master@{#37574}

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

Review-Url: https://codereview.chromium.org/2129853002
Cr-Commit-Position: refs/heads/master@{#37573}

Those virtual methods shouldn't live on the AST since they are crankshaft specific, and can easily be checked inline.

BUG=

Review-Url: https://codereview.chromium.org/2125933004
Cr-Commit-Position: refs/heads/master@{#37572}

When reading the value property of an iterator result fails, we must not close the iterator.
This was not discovered earlier because the tests had a subtle bug.

This CL fixes both the desugaring and the tests.

BUG=

Review-Url: https://codereview.chromium.org/2119353002
Cr-Commit-Position: refs/heads/master@{#37571}

A bit of browsing around indicates that the new fast-path is taken most of the time:
   3496 Entering new
 152295 Reentering same

BUG=

Review-Url: https://codereview.chromium.org/2131483002
Cr-Commit-Position: refs/heads/master@{#37570}

For variables introduced as part of a catch pattern, we used to set their
"initializer position" to the beginning of the pattern.  This lead to
full-codegen eliminating crucial hole checks when reading such variables
inside the pattern itself.

R=adamk@chromium.org, littledan@chromium.org
BUG=v8:5178

Review-Url: https://codereview.chromium.org/2123953002
Cr-Commit-Position: refs/heads/master@{#37569}

Rolling v8/build to 6d9becf753310daf17f04ac4f0d8c109c364cdd2

Rolling v8/buildtools to aa47d9773d8f4d6254a587a1240b3dc023d54f06

Rolling v8/tools/gyp to bac4680ec9a5c55ab692490b6732999648ecf1e9

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

Review-Url: https://codereview.chromium.org/2123853004
Cr-Commit-Position: refs/heads/master@{#37568}

Port b86ac0e0

Original commit message:

    Both of these were broken in different ways:
    * On arm, the loop counter was passed as argc on the stack.
    * On arm64, we passed argc + 1 instead of argc.

    The result in both cases was an incorrect receiver for the builtin frame
    when generating stack traces.

R=jgruber@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=v8:4815
LOG=N

Review-Url: https://codereview.chromium.org/2125913004
Cr-Commit-Position: refs/heads/master@{#37567}

Revert of [esnext] ship --harmony-object-values-entries (patchset #1 id:1 of https://codereview.chromium.org/2116053003/ )

Reason for revert:
Revert to see if it addresses the performance regression observed in chromium:625956 in automated graphs

Original issue's description:
> [esnext] ship --harmony-object-values-entries
>
> BUG=v8:4663
> R=littledan@chromium.org, adamk@chromium.org
>
> Committed: https://crrev.com/ab529234853a1768642f8f6c907aaaa5ea8b19bf
> Cr-Commit-Position: refs/heads/master@{#37485}

TBR=adamk@chromium.org,caitpotter88@gmail.com
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=v8:4663

Review-Url: https://codereview.chromium.org/2129533004
Cr-Commit-Position: refs/heads/master@{#37566}

Working on eliminating the use of ClassOf(). This function was checking IS_ARRAYBUFFER.

BUG=

Review-Url: https://codereview.chromium.org/2126603003
Cr-Commit-Position: refs/heads/master@{#37565}