Commit Graph

31939 Commits

Author SHA1 Message Date
machenbach
9b4f098943 [test] Remove presubmit logic from test runner.
Having presubmit called from within the test runner often
requires logic to remove the call again.

After the GN transition it would be better if presubmit is
called by a wrapper script if needed at all. It is run
on upload and on the tryservers anyways.

BUG=chromium:474921

Review-Url: https://codereview.chromium.org/2114653002
Cr-Commit-Position: refs/heads/master@{#37447}
2016-06-30 14:30:43 +00:00
machenbach
f4dd32319d [gn] Automatically derive build configs in test runner.
This executes an action as part of the build, writing a json
configuration that includes all build flags relevant to v8
testing.

The test runner will derive all build-dependent flags from
the file if it detects it.

BUG=chromium:474921

Review-Url: https://codereview.chromium.org/2106423002
Cr-Commit-Position: refs/heads/master@{#37446}
2016-06-30 14:24:34 +00:00
titzer
fa69cbb86b [turbofan] Allow OptionalOperator to return a placeholder.
R=bmeurer@chromium.org, ahaas@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2112733003
Cr-Commit-Position: refs/heads/master@{#37445}
2016-06-30 14:18:35 +00:00
machenbach
eb2a84d26f [release] Include more gpu trybots on v8 rolls
BUG=v8:5159
NOTRY=true

Review-Url: https://codereview.chromium.org/2111673003
Cr-Commit-Position: refs/heads/master@{#37444}
2016-06-30 14:18:34 +00:00
hablich
805b0dd0e1 Update version to 5.4
R=machenbach@chromium.org
NOTRY=true

Review-Url: https://codereview.chromium.org/2113663002
Cr-Commit-Position: refs/heads/master@{#37443}
2016-06-30 14:03:34 +00:00
bjaideep
b6f14059a7 s390: fixed doubleregister name
fixed doubleregister name in VisitFloat64Ieee754Binop and VisitFloat64Ieee754Unop

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

BUG=
LOG=N

Review-Url: https://codereview.chromium.org/2111873002
Cr-Commit-Position: refs/heads/master@{#37442}
2016-06-30 13:31:35 +00:00
bjaideep
502cb17918 s390: [turbofan] Make sure binop results do not overwrite deoptimization inputs on arm.
Port e60c4053c7

    this fix applies to s390 as well.

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

BUG=
LOG=N

Review-Url: https://codereview.chromium.org/2101933006
Cr-Commit-Position: refs/heads/master@{#37441}
2016-06-30 13:28:06 +00:00
mythria
b83dbf6502 Refactor the functions related to collecting code statistics to a new class.
The functions related to code statistics are a part of spaces currently.
This is not very intutive and hence refactored these functions to a new
CodeStatistics class.

BUG=
LOG=N

Review-Url: https://codereview.chromium.org/2082863003
Cr-Commit-Position: refs/heads/master@{#37440}
2016-06-30 13:21:56 +00:00
georgia.kouveli
f0e65c9637 [ARM64] removed unused variable.
BUG=

Review-Url: https://codereview.chromium.org/2112873002
Cr-Commit-Position: refs/heads/master@{#37439}
2016-06-30 12:17:47 +00:00
jarin
f496f80fa8 Revert of [compiler] Load elimination now traverses CheckTaggedPointer. (patchset #1 id:1 of https://codereview.chromium.org/2104893002/ )
Reason for revert:
Clusterfuzz breakage (https://bugs.chromium.org/p/chromium/issues/detail?id=624756)

Original issue's description:
> [compiler] Load elimination now traverses CheckTaggedPointer.
>
> It also dereferences the inputs of StoreField, if those were
> CheckTaggedPointers. Tested manually.
>
> BUG=
>
> Committed: https://crrev.com/f416886358c0aeaa5b4d1e83d9c7d6bb8b0e7f2f
> Cr-Commit-Position: refs/heads/master@{#37330}

TBR=bmeurer@chromium.org,bgeron@google.com
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=

Review-Url: https://codereview.chromium.org/2113623002
Cr-Commit-Position: refs/heads/master@{#37438}
2016-06-30 12:14:46 +00:00
bbudge
aca3716a50 [Turbofan] Add Simd128 registers to RegisterConfiguration.
-Defines SIMD128_REGISTERS for all platforms.
-Adds Simd128 register information to RegisterConfiguration, and implements
aliasing calculations.

LOG=N
BUG=v8:4124

Review-Url: https://codereview.chromium.org/2092103004
Cr-Commit-Position: refs/heads/master@{#37437}
2016-06-30 11:29:36 +00:00
machenbach
e8d2238d24 [gn] Switch custom snapsot bot to gn
BUG=chromium:474921
NOTRY=true

Committed: https://crrev.com/52a43518abe9143a14ded92a89bd3384a47e9193
Review-Url: https://codereview.chromium.org/2113583002
Cr-Original-Commit-Position: refs/heads/master@{#37431}
Cr-Commit-Position: refs/heads/master@{#37436}
2016-06-30 11:26:30 +00:00
yangguo
bcb5b3d550 Simplify JIT event logging.
R=jgruber@chromium.org
BUG=v8:5117

Review-Url: https://codereview.chromium.org/2111793002
Cr-Commit-Position: refs/heads/master@{#37435}
2016-06-30 11:17:25 +00:00
machenbach
33ceb9e5d6 Revert of [gn] Switch custom snapsot bot to gn (patchset #2 id:20001 of https://codereview.chromium.org/2113583002/ )
Reason for revert:
Breaks...

Original issue's description:
> [gn] Switch custom snapsot bot to gn
>
> BUG=chromium:474921
> NOTRY=true
>
> Committed: https://crrev.com/52a43518abe9143a14ded92a89bd3384a47e9193
> Cr-Commit-Position: refs/heads/master@{#37431}

TBR=yangguo@chromium.org,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/2107423003
Cr-Commit-Position: refs/heads/master@{#37434}
2016-06-30 11:14:18 +00:00
franzih
203391bcc0 [builtins] Migrate Math.abs() to TurboFan builtins.
Like the other Math builtins, Math.abs() is now a TurboFan builtin.
It uses RawMachineAssembler::Float64Abs().

R=bmeurer@chromium.org
BUG=v8:5163, v8:5086
LOG=N

Review-Url: https://codereview.chromium.org/2115493002
Cr-Commit-Position: refs/heads/master@{#37433}
2016-06-30 10:27:09 +00:00
bmeurer
bbc44c2696 [intrinsics] Drop the now obsolete %_DoubleHi and %_DoubleLo intrinsics.
These are no longer used, except in tests that test these intrinsics.

R=yangguo@chromium.org

Review-Url: https://codereview.chromium.org/2114613002
Cr-Commit-Position: refs/heads/master@{#37432}
2016-06-30 10:21:13 +00:00
machenbach
52a43518ab [gn] Switch custom snapsot bot to gn
BUG=chromium:474921
NOTRY=true

Review-Url: https://codereview.chromium.org/2113583002
Cr-Commit-Position: refs/heads/master@{#37431}
2016-06-30 10:00:10 +00:00
titzer
d249efd705 [wasm] Disassemble wasm code from script
This stores the wasm object and the function index in the script, and
adds functions to get the disassembled wasm code as well as the offset
table mapping from byte position to line and column in the disassembly
solely from the script.
This will be used to show "ui source code" in DevTools, and map raw
locations from the stack trace into this code view.

R=yangguo@chromium.org, ahaas@chromium.org, titzer@chromium.org
BUG=chromium:613110

patch from issue 2063013004 at patchset 80001 (http://crrev.com/2063013004#ps80001)

Review-Url: https://codereview.chromium.org/2105303002
Cr-Commit-Position: refs/heads/master@{#37430}
2016-06-30 09:57:07 +00:00
rmcilroy
f0a430e5dc [Code Stubs] Convert FastNewClosureStub to a TurboFanCodeStub.
Converts FastNewClosureStub from a Hydrogen to a TurboFan code stub.
The plan is to start using this in the Interpreter CreateClosure
bytecode handler (in a follow-up CL).

BUG=v8:4280

Review-Url: https://codereview.chromium.org/2100883003
Cr-Commit-Position: refs/heads/master@{#37429}
2016-06-30 09:45:09 +00:00
titzer
971731f354 [wasm] Fix receiver conversion for WASM->JS calls.
R=yangguo@chromium.org,ahaas@chromium.org
BUG=chromium:624713
LOG=Y

Review-Url: https://codereview.chromium.org/2111843002
Cr-Commit-Position: refs/heads/master@{#37428}
2016-06-30 09:41:43 +00:00
yangguo
a4c6cd0f4f Remove accidentally added files.
NOTRY=true
TBR=neis@chromium.org

Review-Url: https://codereview.chromium.org/2104143004
Cr-Commit-Position: refs/heads/master@{#37427}
2016-06-30 09:38:35 +00:00
yangguo
141cddc720 Move RelocInfo::kNoPosition.
R=mstarzinger@chromium.org
BUG=v8:5117

Review-Url: https://codereview.chromium.org/2109773004
Cr-Commit-Position: refs/heads/master@{#37426}
2016-06-30 09:29:30 +00:00
machenbach
38b31043ec [gn] Switch linux64 debug and internal snapshot to gn
BUG=chromium:474921

Committed: https://crrev.com/3cfc9f209ed0c173319659114859b7e848812fd7
Review-Url: https://codereview.chromium.org/2105353002
Cr-Original-Commit-Position: refs/heads/master@{#37414}
Cr-Commit-Position: refs/heads/master@{#37425}
2016-06-30 08:59:32 +00:00
mvstanton
cede9ce5e1 [builtins] Unify Cosh, Sinh and Tanh as exports from flibm
BUG=v8:5086

Review-Url: https://codereview.chromium.org/2083573002
Cr-Commit-Position: refs/heads/master@{#37424}
2016-06-30 08:44:46 +00:00
bmeurer
483291d230 [turbofan] Introduce CheckIf simplified operator.
This adds a new CheckIf operator and changes all direct uses of
DeoptimizeIf and DeoptimizeUnless on the JavaScript level to use
CheckIf (or one of the more concrete check operators) instead.
This way we do not depend on particular frame states, but the
effect/control linearizer will assign an appropriate frame
state instead.

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

Review-Url: https://codereview.chromium.org/2115513002
Cr-Commit-Position: refs/heads/master@{#37423}
2016-06-30 08:41:14 +00:00
ahaas
5d8cfbbd06 [turbofan] Don't call String::Flatten in Constant::ToHeapObject()
The call to String::Flatten can cause garbage collection and in general adds
complexity to the code generation. It also blocks the way to run code generation on worker threads.

The call to String::Flatten in Constant::ToHeapObject() seems not to be necessary
for correctness. If removing this call affects performance negatively, we can revert
this CL.

Review-Url: https://codereview.chromium.org/2107243002
Cr-Commit-Position: refs/heads/master@{#37422}
2016-06-30 08:41:13 +00:00
mstarzinger
9e12b838aa [turbofan] Also verify lazy bailout points in graph builder.
This adds verification of bailout IDs to {PrepareFrameState} to ensure
all bailout points used for lazy deoptimization have been prepared by
full codegen. This will catch bailout ID abuse during graph building
instead of late in the deoptimizer. Similar verification for all eager
deoptimization points is already present.

R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2105023003
Cr-Commit-Position: refs/heads/master@{#37421}
2016-06-30 08:35:14 +00:00
machenbach
fbeb0e6430 Revert of [gn] Switch linux64 debug and internal snapshot to gn (patchset #1 id:1 of https://codereview.chromium.org/2105353002/ )
Reason for revert:
Breaks...

Original issue's description:
> [gn] Switch linux64 debug and internal snapshot to gn
>
> BUG=chromium:474921
>
> Committed: https://crrev.com/3cfc9f209ed0c173319659114859b7e848812fd7
> Cr-Commit-Position: refs/heads/master@{#37414}

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/2109503007
Cr-Commit-Position: refs/heads/master@{#37420}
2016-06-30 07:54:13 +00:00
machenbach
8d65a3c1ef Revert of [gn] Fix valgrind config (patchset #1 id:1 of https://codereview.chromium.org/2109403002/ )
Reason for revert:
Breaks...

Original issue's description:
> [gn] Fix valgrind config
>
> BUG=chromium:474921
> NOTRY=true
> NOTREECHECKS=true
> TBR=vogelheim@chromium.org, jochen@chromium.org
>
> Committed: https://crrev.com/e97c990a2b1fd0b5b90832a7f182daa25fee8291
> Cr-Commit-Position: refs/heads/master@{#37418}

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/2109423002
Cr-Commit-Position: refs/heads/master@{#37419}
2016-06-30 07:51:07 +00:00
machenbach
e97c990a2b [gn] Fix valgrind config
BUG=chromium:474921
NOTRY=true
NOTREECHECKS=true
TBR=vogelheim@chromium.org, jochen@chromium.org

Review-Url: https://codereview.chromium.org/2109403002
Cr-Commit-Position: refs/heads/master@{#37418}
2016-06-30 07:39:10 +00:00
hablich
b1f7f1f4e4 Revert of Amend DataView, ArrayBuffer, and TypedArray methods to use ToIndex. (patchset #8 id:140001 of https://codereview.chromium.org/2090353003/ )
Reason for revert:
Speculative revert to unblock roll: https://codereview.chromium.org/2107223003/

Original issue's description:
> Amend DataView, ArrayBuffer, and TypedArray methods to use ToIndex.
>
> The spec was modified to relax some requirements which implementors had not been
> enforcing. Part of this process involved introducing a new abstract operation
> ToIndex, which had partial overlap with our existing semantics as well as some
> differences (most notably treating undefined as 0). Test262 tests were introduced to
> check for the new semantics, some of which we were failing. This patch amends the
> parts of our implementation corresponding to specification algorithms which use
> ToIndex to follow its semantics precisely.
>
> BUG=v8:4784,v8:5120
>
> Committed: https://crrev.com/09720349ea058d178521ec58d0a5676443a5a132
> Cr-Commit-Position: refs/heads/master@{#37406}

TBR=littledan@chromium.org,adamk@chromium.org,bakkot@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4784,v8:5120

Review-Url: https://codereview.chromium.org/2113593002
Cr-Commit-Position: refs/heads/master@{#37417}
2016-06-30 07:39:09 +00:00
jgruber
5febc27b5d [builtins] New frame type for exits to C++ builtins
Prior to this commit, calls to C++ builtins created standard exit
frames, which are skipped when constructing JS stack traces. In order to
show these calls on traces, we introduce a new builtin exit frame type.

Builtin exit frames contain target and new.target on the stack and are
not skipped during stack trace construction.

BUG=v8:4815
R=bmeurer@chromium.org, yangguo@chromium.org
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel;tryserver.v8:v8_linux_nosnap_dbg

Committed: https://crrev.com/3c60c6b105f39344f93a8407f41534e5e60cf19a
Review-Url: https://codereview.chromium.org/2090723005
Cr-Original-Commit-Position: refs/heads/master@{#37384}
Cr-Commit-Position: refs/heads/master@{#37416}
2016-06-30 06:58:23 +00:00
adamk
7166503f6e Do all parsing for try/catch destructuring inside the appropriate scopes
Previously, any expressions inside destructuring patterns in a catch
would be parsed in the surrounding scope, instead of in the catch's
scope. This change fixes that by entering not only the catch scope,
but also the block scope inside it.

R=neis@chromium.org
BUG=v8:5106, v8:5112

Review-Url: https://codereview.chromium.org/2110193002
Cr-Commit-Position: refs/heads/master@{#37415}
2016-06-30 06:52:13 +00:00
machenbach
3cfc9f209e [gn] Switch linux64 debug and internal snapshot to gn
BUG=chromium:474921

Review-Url: https://codereview.chromium.org/2105353002
Cr-Commit-Position: refs/heads/master@{#37414}
2016-06-30 06:46:16 +00:00
zhengxing.li
21550e025c X87: [RegisterConfiguration] Streamline access to arch defaults, simplify Registers.
port 257336d26a (r37297)

  original commit message:
  Replaces ArchDefault method with Crankshaft and Turbofan getters.
  Eliminates IsAllocated method on Register, FloatRegister, DoubleRegister.
  Eliminates ToString method too.
  Changes call sites to access appropriate arch default RegisterConfiguration.

BUG=

Review-Url: https://codereview.chromium.org/2114553002
Cr-Commit-Position: refs/heads/master@{#37413}
2016-06-30 06:25:44 +00:00
jarin
10714b633c [turbofan] Always defer replacement in simplified lowering.
Since we do negative type checks, the current shortcut might still affect
the lowering choices, possibly leading to inconsistent results.

This CL gets rid of the shortcut.

Review-Url: https://codereview.chromium.org/2101943005
Cr-Commit-Position: refs/heads/master@{#37412}
2016-06-30 05:39:11 +00:00
alph
561be7bb81 Dump source position tabe under --print-code
BUG=v8:5117
R=yangguo

Review-Url: https://codereview.chromium.org/2106843006
Cr-Commit-Position: refs/heads/master@{#37411}
2016-06-30 04:40:57 +00:00
v8-autoroll
75077703d9 Update V8 DEPS.
Rolling v8/build to e952e32616ec1865f9c5d28feb6030f12ebf0952

Rolling v8/tools/clang to 040101933080540f1e103cf42729147654e7bb08

Rolling v8/tools/mb to ec76395b928f16607fca76f5fa3b63233c775877

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

Review-Url: https://codereview.chromium.org/2115443002
Cr-Commit-Position: refs/heads/master@{#37410}
2016-06-30 03:34:33 +00:00
gdeepti
8bd1e0dc88 [wasm] Explicitly Disallow heap allocation when wasm memory references are updated
- Enable grow memory tests on 32 bit windows
 - Use handles to module JSObject instead of object pointers

R=ahaas@chromium.org, bradnelson@chromium.org

Review-Url: https://codereview.chromium.org/2105013004
Cr-Commit-Position: refs/heads/master@{#37409}
2016-06-29 23:42:42 +00:00
bbudge
cf62923e3b [Turbofan] Eliminate IsOutputRegisterOf and IsOutputFPRegisterOf checks.
- Eliminates tests for whether a fixed register needs to be preserved,
and conservatively adds a UsePosition for all fixed live ranges.

This speeds up ProcessInstructions, especially when ARM register
aliasing introduces fixed live ranges for float and SIMD 128 registers.

LOG=N
BUG=v8:4124

Review-Url: https://codereview.chromium.org/2103793003
Cr-Commit-Position: refs/heads/master@{#37408}
2016-06-29 22:41:10 +00:00
bakkot
f772c22cd1 Amends the TypedArray constructor to use the path for primitives for all
types of primitives, not just undefined, booleans, numbers, and strings.
(The missing cases were null and Symbol.) This is required by the
specification, and there are test262 tests which we were failing due to
this bug.

BUG=v8:5124

Committed: https://crrev.com/f788bd9cce19815cba746e47bb65abfe25c16208
Review-Url: https://codereview.chromium.org/2096873002
Cr-Original-Commit-Position: refs/heads/master@{#37234}
Cr-Commit-Position: refs/heads/master@{#37407}
2016-06-29 22:23:18 +00:00
bakkot
09720349ea Amend DataView, ArrayBuffer, and TypedArray methods to use ToIndex.
The spec was modified to relax some requirements which implementors had not been
enforcing. Part of this process involved introducing a new abstract operation
ToIndex, which had partial overlap with our existing semantics as well as some
differences (most notably treating undefined as 0). Test262 tests were introduced to
check for the new semantics, some of which we were failing. This patch amends the
parts of our implementation corresponding to specification algorithms which use
ToIndex to follow its semantics precisely.

BUG=v8:4784,v8:5120

Review-Url: https://codereview.chromium.org/2090353003
Cr-Commit-Position: refs/heads/master@{#37406}
2016-06-29 21:18:59 +00:00
bakkot
9bbba1441a Sloppy-mode function declarations in blocks are now hoisted appropriately.
In ES2016, function declarations nested in blocks are formally allowed. This was
never a part of ECMAScript, but was a common extension. Unfortunately
implementations differed in the exact semantics. Annex B.3.3 in the spec tries
to standardize the parts which are common to different implementations, but does
so with some fairly complicated semantics.

This CL addresses three issues related to annex B.3.3:
* When the outer function had a complex parameter list, no hoisting whatsoever was
  being performed.
* Hoisting was not blocked by parameters of the same name.
* Hoisting was not blocked by nested lexical declarations of the same name.

We had tests which checked for the second, but they were incorrectly passing due to
the first. This CL adds more complete tests.

BUG=v8:5151, v8:5111

Review-Url: https://codereview.chromium.org/2099623003
Cr-Commit-Position: refs/heads/master@{#37405}
2016-06-29 20:55:35 +00:00
brendan.kirby
0f75d7d3e3 Remove invalid UTF-8 characters from test output
Occasionally tests output characters that aren't valid unicode UTF-8
characters.  This causes the --json-test-results file not to be written.
Replace these characters with the UTF-8 invalid character.

BUG=

Review-Url: https://codereview.chromium.org/2086143003
Cr-Commit-Position: refs/heads/master@{#37404}
2016-06-29 20:34:49 +00:00
alph
486d181928 Fix MIPS compile after r37397
BUG=v8:5117
TBR=yangguo@chromium.org,ivica.bogosavljevic@imgtec.com

Review-Url: https://codereview.chromium.org/2105553007
Cr-Commit-Position: refs/heads/master@{#37403}
2016-06-29 17:56:50 +00:00
bjaideep
c84156f008 PPC: [turbofan] Make sure binop results do not overwrite deoptimization inputs on arm.
Port e60c4053c7

    this fix applies to ppc as well.

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

BUG=
LOG=N

Review-Url: https://codereview.chromium.org/2109153002
Cr-Commit-Position: refs/heads/master@{#37402}
2016-06-29 17:38:31 +00:00
bradnelson
b218d6448a Adding a few more owners to the wasm directory.
Mircea and Andreas have been making changes to wasm.

R=titzer@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2103793006
Cr-Commit-Position: refs/heads/master@{#37401}
2016-06-29 17:38:30 +00:00
georgia.kouveli
317dc0578f [arm64] Generate adds/ands.
Perform the following transformation:

    | Before           | After               |
    |------------------+---------------------|
    | add w2, w0, w1   | adds w2, w0, w1     |
    | cmp w2, #0x0     | b.<cond'> <addr>    |
    | b.<cond> <addr>  |                     |
    |------------------+---------------------|
    | add w2, w0, w1   | adds w2, w0, w1     |
    | cmp #0x0, w2     | b.<cond'> <addr>    |
    | b.<cond> <addr>  |                     |

and the same for and instructions instead of add.  When the result of the
add/and is not used, generate cmn/tst instead. We need to take care with which
conditions we can handle and what new condition we map them to.

BUG=

Review-Url: https://codereview.chromium.org/2065243005
Cr-Commit-Position: refs/heads/master@{#37400}
2016-06-29 14:57:49 +00:00
mlippautz
f58dd088f0 Reland "[heap] Optimize ArrayBuffer tracking"
With the current approach we only need to track using an unordered set as we can
still access the backing store pointer and length by the time we free the
backing store.

Reland:
The issue was fixed in 67b5a501db.

BUG=chromium:619491, chromium:611688
LOG=N
R=ulan@chromium.org

This reverts commit 0e1eaec71d.

Review-Url: https://codereview.chromium.org/2109913003
Cr-Commit-Position: refs/heads/master@{#37399}
2016-06-29 14:54:30 +00:00
ishell
c9b6e81697 Update tools/gen-postmortem-metadata.py after recent modifications.
This CL changed layout of UnseededNumberDictionary: https://codereview.chromium.org/2102073002.

Review-Url: https://codereview.chromium.org/2105553006
Cr-Commit-Position: refs/heads/master@{#37398}
2016-06-29 14:28:19 +00:00