Commit Graph

33139 Commits

Author SHA1 Message Date
jyan
27c56efb39 S390: Decouple TF Operator kS390_And/Or/Xor/Not to 32/64
Separate 32 and 64 And/Or/Xor/Not Operation

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

Review-Url: https://codereview.chromium.org/2216883003
Cr-Commit-Position: refs/heads/master@{#38397}
2016-08-05 18:25:05 +00:00
neis
b5fc36eee0 [ast] Remove bogus comment.
R=adamk@chromium.org
BUG=
NOTRY=true

Review-Url: https://codereview.chromium.org/2212183003
Cr-Commit-Position: refs/heads/master@{#38396}
2016-08-05 18:21:15 +00:00
adamk
6768456db5 Use Variable::binding_needs_init() to determine hole initialization
The old code was using VariableMode, but that signal is both
over-pessimistic (some CONST and LET variables need no hole-initialization)
and inconsistent with other uses of the InitializationFlag enum (such
as %LoadLookupSlot).

This changes no observable behavior, but removes unnecessary hole
initialization and hole checks in a few places, including
block-scoped function declarations, super property lookups,
and new.target.

R=bmeurer@chromium.org, neis@chromium.org

Review-Url: https://codereview.chromium.org/2201193004
Cr-Commit-Position: refs/heads/master@{#38395}
2016-08-05 17:51:17 +00:00
klaasb
4732c219b0 [interpreter] Remove redundant code in ForInPrepare
ForInPrepare checked whether the receiver object was null, undefined or
converted to a JSObject. This is already done by the generated bytecode.

BUG=v8:4820
LOG=n

Review-Url: https://codereview.chromium.org/2208043002
Cr-Commit-Position: refs/heads/master@{#38394}
2016-08-05 17:36:00 +00:00
neis
3651bff016 Reland "Remove redundant ParseInfo::scope_."
Original commit message:
> Remove redundant ParseInfo::scope_.
>
> This was always set to the literal's scope.
>
> (Additional change: mark getters as const.)
>
> R=adamk@chromium.org
> BUG=
>
> Review-Url: https://codereview.chromium.org/2216563003
> Cr-Commit-Position: refs/heads/master@{#38372}
> This was always set to the literal's scope.

TBR=adamk@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2216083003
Cr-Commit-Position: refs/heads/master@{#38393}
2016-08-05 16:05:53 +00:00
bmeurer
b659a0ac23 [turbofan] Add support for copy-on-write element stores.
This extends JSNativeContextSpecialization with support for stores to
fast object/smi element backing stores that are marked as copy-on-write.
In this case we first call the CopyFixedArray builtin to take a copy of
the elements backing store, and then store the new elements back to the
object, and finally perform the actual element store.

R=epertoso@chromium.org
BUG=v8:4470

Committed: https://crrev.com/ac98ad22f049a59c48387f1bab1590f135d219c6
Review-Url: https://codereview.chromium.org/2218703003
Cr-Original-Commit-Position: refs/heads/master@{#38370}
Cr-Commit-Position: refs/heads/master@{#38392}
2016-08-05 15:32:13 +00:00
jarin
e144335fe3 [turbofan] Insert sigma nodes for loop variable backedge.
If we infer loop variable bounds, we need to insert a type rename node
(sigma) to make sure that simplified lowering can choose representations
consistently.

Review-Url: https://codereview.chromium.org/2222513002
Cr-Commit-Position: refs/heads/master@{#38391}
2016-08-05 14:34:05 +00:00
verwaest
ff1c3cdb18 Separate Scope into DeclarationScope and Scope
This reduces peak zone memory usage by ~10% on codeload and ~5% on mandreel.

BUG=v8:5209

Committed: https://crrev.com/2648162dcfff622f8587cea2faa8c3af56456968
Review-Url: https://codereview.chromium.org/2209573002
Cr-Original-Commit-Position: refs/heads/master@{#38367}
Cr-Commit-Position: refs/heads/master@{#38390}
2016-08-05 14:34:04 +00:00
machenbach
0f4468b4a6 Revert of [x64] Zero/sign-extend loads to 64-bit registers. (patchset id:20001 of https://codereview.chromium.org/2220483003/ )
Reason for revert:
Breaks tree:
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20-%20debug/builds/10969

Original issue's description:
> [x64] Zero/sign-extend loads to 64-bit registers.
>
> Before this change we would first load an 8/16/32-bit value from memory into a 32-bit register, then zero/sign-extend from that register to a 64-bit one. Now we replace that pattern with a single movsx/movzx.
>
> Ported from http://crrev.com/2183923003
>
> R=bmeurer@chromium.org
>
> Committed: https://crrev.com/4abecb7a27bd5fa073d0ff5fadb0c2bb248ef9f4
> Cr-Commit-Position: refs/heads/master@{#38388}

TBR=bmeurer@chromium.org,epertoso@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2221473002
Cr-Commit-Position: refs/heads/master@{#38389}
2016-08-05 14:30:11 +00:00
epertoso
4abecb7a27 [x64] Zero/sign-extend loads to 64-bit registers.
Before this change we would first load an 8/16/32-bit value from memory into a 32-bit register, then zero/sign-extend from that register to a 64-bit one. Now we replace that pattern with a single movsx/movzx.

Ported from http://crrev.com/2183923003

R=bmeurer@chromium.org

Review-Url: https://codereview.chromium.org/2220483003
Cr-Commit-Position: refs/heads/master@{#38388}
2016-08-05 13:34:24 +00:00
jochen
912577a3ef Reland "Hook up compiler dispatcher jobs to lazy parser."
Original issue description:
> The lazy parser actually parses eagerly. It's called lazy because it
> parses functions that were previously lazy parsed. D'uh.
>
> BUG=v8:5215
> R=marja@chromium.org
>
> Review-Url: https://codereview.chromium.org/2220463002
> Cr-Commit-Position: refs/heads/master@{#38375}

BUG=v8:5215
TBR=marja@chromium.org

Review-Url: https://codereview.chromium.org/2218033003
Cr-Commit-Position: refs/heads/master@{#38387}
2016-08-05 13:19:27 +00:00
jochen
682a8f71d8 Mark Local::As and Persistent::As as const
Since they are.

R=verwaest@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2216123003
Cr-Commit-Position: refs/heads/master@{#38386}
2016-08-05 13:00:24 +00:00
ivica.bogosavljevic
20c56bdd6e Fix compilation failure when v8 compiled with GCC 5.x due to -Werror=unused-variable
BUG=

Review-Url: https://codereview.chromium.org/2212133003
Cr-Commit-Position: refs/heads/master@{#38385}
2016-08-05 12:56:40 +00:00
caitp
6cd494fead [test] don't use Intl.Collator in non-Intl regression test
Unskip test which failed with Intl support disabled, and avoid using Intl
objects within the test.

BUG=chromium:634273,chromium:634357,v8:5162
NOTRY=true
R=mstarzinger@chromium.org

Review-Url: https://codereview.chromium.org/2218743003
Cr-Commit-Position: refs/heads/master@{#38384}
2016-08-05 12:56:39 +00:00
ahaas
f68059b73a [x64][ia32] Add Support for the Float64Neg and Float32Neg turbofan operators.
Benedikt, do you think we could also provide these operators on mips,
maybe by expanding them to "-0.0 -x"? If mips can provide these operators,
then we could make Float64Neg and Float32Neg real operators and not just
OptionalOperators.

R=bmeurer@chromium.org

Review-Url: https://codereview.chromium.org/2218023002
Cr-Commit-Position: refs/heads/master@{#38383}
2016-08-05 12:56:38 +00:00
cbruni
172bfb5834 [keys] Throw a range error if the number of keys overflow FixedArray::kMaxLength
BUG=chromium:634776

Review-Url: https://codereview.chromium.org/2219803002
Cr-Commit-Position: refs/heads/master@{#38382}
2016-08-05 12:52:28 +00:00
machenbach
55a4344f41 [test] Activate ignition_staging variant
BUG=v8:5238
NOTREECHECKS=true

Review-Url: https://codereview.chromium.org/2214283003
Cr-Commit-Position: refs/heads/master@{#38381}
2016-08-05 12:48:36 +00:00
machenbach
2b6675c350 Revert of Separate Scope into DeclarationScope and Scope (patchset id:240001 of https://codereview.chromium.org/2209573002/ )
Reason for revert:
[Sheriff] Make leak checker unhappy:
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20-%20debug/builds/10959

Original issue's description:
> Separate Scope into DeclarationScope and Scope
>
> This reduces peak zone memory usage by ~10% on codeload and ~5% on mandreel.
>
> BUG=v8:5209
>
> Committed: https://crrev.com/2648162dcfff622f8587cea2faa8c3af56456968
> Cr-Commit-Position: refs/heads/master@{#38367}

TBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,adamk@chromium.org,verwaest@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5209

Review-Url: https://codereview.chromium.org/2212383003
Cr-Commit-Position: refs/heads/master@{#38380}
2016-08-05 12:37:23 +00:00
machenbach
85e41a88e5 Revert of Remove redundant ParseInfo::scope_. (patchset id:60001 of https://codereview.chromium.org/2216563003/ )
Reason for revert:
Reverting to revert https://codereview.chromium.org/2209573002

Original issue's description:
> Remove redundant ParseInfo::scope_.
>
> This was always set to the literal's scope.
>
> (Additional change: mark getters as const.)
>
> R=adamk@chromium.org
> BUG=
>
> Committed: https://crrev.com/23ea0782977ed3a4dd113462af9ecbfd6ff0ce94
> Cr-Commit-Position: refs/heads/master@{#38372}

TBR=adamk@chromium.org,marja@chromium.org,neis@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/2222503002
Cr-Commit-Position: refs/heads/master@{#38379}
2016-08-05 12:37:22 +00:00
machenbach
e0ac9a1e3c Revert of Hook up compiler dispatcher jobs to lazy parser. (patchset id:40001 of https://codereview.chromium.org/2220463002/ )
Reason for revert:
Need to revert https://codereview.chromium.org/2216563003 - just reland rebased version

Original issue's description:
> Hook up compiler dispatcher jobs to lazy parser.
>
> The lazy parser actually parses eagerly. It's called lazy because it
> parses functions that were previously lazy parsed. D'uh.
>
> BUG=v8:5215
> R=marja@chromium.org
>
> Committed: https://crrev.com/255cc15f98507e2bba49574f4dc38c74deb0ca2c
> Cr-Commit-Position: refs/heads/master@{#38375}

TBR=marja@chromium.org,jochen@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5215

Review-Url: https://codereview.chromium.org/2211393003
Cr-Commit-Position: refs/heads/master@{#38378}
2016-08-05 12:37:21 +00:00
jkummerow
c9308147b3 [KeyedLoadIC] Support Smi "handlers" for element loads
This is an experiment as far as performance is concerned. If Smi-configured
element loading directly from the dispatcher stub is fast enough, then we
can stop compiling LoadFastElementStubs (and drop the corresponding code).

Review-Url: https://codereview.chromium.org/2180273002
Cr-Commit-Position: refs/heads/master@{#38377}
2016-08-05 12:11:02 +00:00
bmeurer
d3d7069d38 Revert of [turbofan] Add support for copy-on-write element stores. (patchset id:20001 of https://codereview.chromium.org/2218703003/ )
Reason for revert:
Breaks tree?

Original issue's description:
> [turbofan] Add support for copy-on-write element stores.
>
> This extends JSNativeContextSpecialization with support for stores to
> fast object/smi element backing stores that are marked as copy-on-write.
> In this case we first call the CopyFixedArray builtin to take a copy of
> the elements backing store, and then store the new elements back to the
> object, and finally perform the actual element store.
>
> R=epertoso@chromium.org
> BUG=v8:4470
>
> Committed: https://crrev.com/ac98ad22f049a59c48387f1bab1590f135d219c6
> Cr-Commit-Position: refs/heads/master@{#38370}

TBR=epertoso@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4470

Review-Url: https://codereview.chromium.org/2220513002
Cr-Commit-Position: refs/heads/master@{#38376}
2016-08-05 12:07:01 +00:00
jochen
255cc15f98 Hook up compiler dispatcher jobs to lazy parser.
The lazy parser actually parses eagerly. It's called lazy because it
parses functions that were previously lazy parsed. D'uh.

BUG=v8:5215
R=marja@chromium.org

Review-Url: https://codereview.chromium.org/2220463002
Cr-Commit-Position: refs/heads/master@{#38375}
2016-08-05 12:03:09 +00:00
machenbach
e866b969bf [gn] Switch tsan to gn
BUG=chromium:474921
NOTRY=true

Review-Url: https://codereview.chromium.org/2209313002
Cr-Commit-Position: refs/heads/master@{#38374}
2016-08-05 11:55:23 +00:00
machenbach
04bda550c2 [test] Make test duplication more robust
This makes test outcomes immutable. This has two benefits:
1) It's more robust. Using the |= operator by mistake
wouldn't lead to unwanted mutation.
2) It's faster as now the set reference can be copied again
when copying test cases. Test case copying happens an order
of magnitude more often than rules do apply.

BUG=v8:5238

Review-Url: https://codereview.chromium.org/2212333002
Cr-Commit-Position: refs/heads/master@{#38373}
2016-08-05 11:51:33 +00:00
neis
23ea078297 Remove redundant ParseInfo::scope_.
This was always set to the literal's scope.

(Additional change: mark getters as const.)

R=adamk@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2216563003
Cr-Commit-Position: refs/heads/master@{#38372}
2016-08-05 11:17:50 +00:00
danno
eb84126923 [stubs] Convert GrowElementsStub to TurboFan
One caveat: the Crankshaft stub used to preserve callee-clobbered double
registers, which is contrary to any real platform ABI that we support. Since the
only current use of this stub is in Crankshaft, the instruction there now must
be marked as double-clobbering. This might result in a small performance
regression. However, when this stub is eventually used in TF-generated code, it
will be called from deferred code that can save doubles only on the rarely-taken
path... something that Crankshaft can't do.

BUG=chromium:608675

Review-Url: https://codereview.chromium.org/2206333003
Cr-Commit-Position: refs/heads/master@{#38371}
2016-08-05 11:13:59 +00:00
bmeurer
ac98ad22f0 [turbofan] Add support for copy-on-write element stores.
This extends JSNativeContextSpecialization with support for stores to
fast object/smi element backing stores that are marked as copy-on-write.
In this case we first call the CopyFixedArray builtin to take a copy of
the elements backing store, and then store the new elements back to the
object, and finally perform the actual element store.

R=epertoso@chromium.org
BUG=v8:4470

Review-Url: https://codereview.chromium.org/2218703003
Cr-Commit-Position: refs/heads/master@{#38370}
2016-08-05 10:58:39 +00:00
hpayer
04fda1f686 [heap] Temporarily do not use size to iterate live object to investigate Win 10 memory regression.
BUG=chromium:633537

Review-Url: https://codereview.chromium.org/2211893002
Cr-Commit-Position: refs/heads/master@{#38369}
2016-08-05 10:58:38 +00:00
machenbach
dea16c9a42 Revert of [Interpreter] Collect type feedback for 'new' in the bytecode handler (patchset id:100001 of https://codereview.chromium.org/2190293003/ )
Reason for revert:
[Sheriff] Fails on nosnap debug:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap%20-%20debug/builds/8403

Original issue's description:
> [Interpreter] Collect type feedback for 'new' in the bytecode handler
>
> Collect type feedback in the bytecode handler for 'new' bytecode. The
> earlier cl (https://codereview.chromium.org/2153433002/) was reverted
> because that implementation did not collect allocation site feedback.
> This regressed delta blue by an order of magnitude. This implementation
> includes collection of allocation site feedback.
>
> BUG=v8:4280, v8:4780
> LOG=N
>
> Committed: https://crrev.com/9d5e6129c4c7f9cbfe81a5fad2a470f219fe137c
> Cr-Commit-Position: refs/heads/master@{#38364}

TBR=bmeurer@chromium.org,rmcilroy@chromium.org,balazs.kilvady@imgtec.com,mythria@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4280, v8:4780

Review-Url: https://codereview.chromium.org/2212343002
Cr-Commit-Position: refs/heads/master@{#38368}
2016-08-05 10:36:20 +00:00
verwaest
2648162dcf Separate Scope into DeclarationScope and Scope
This reduces peak zone memory usage by ~10% on codeload and ~5% on mandreel.

BUG=v8:5209

Review-Url: https://codereview.chromium.org/2209573002
Cr-Commit-Position: refs/heads/master@{#38367}
2016-08-05 10:17:54 +00:00
rmcilroy
297f2d831a [Interpreter] Avoid dereferencing handles in ConstantPoolArrayBuilder.
Changes ConstantPoolArrayBuilder to do object lookups using the location
of the handles, rather than dereferencing the handles and comparing the
objects. This also updates CanonicalHandleScope when internalizing AST
nodes to ensure that duplicate objects share the same handles and so are
only added to the constant pool once.

BUG=v8:5203

Review-Url: https://codereview.chromium.org/2204243003
Cr-Commit-Position: refs/heads/master@{#38366}
2016-08-05 10:10:04 +00:00
epertoso
46eba45485 [turbofan] Move lowering of Float64 optional operators to EffectControlLinearizer.
It's just a refactoring to avoid introducing new floating controls in the SimplifiedLowering phase.

R=bmeurer@chromium.org

Review-Url: https://codereview.chromium.org/2215183003
Cr-Commit-Position: refs/heads/master@{#38365}
2016-08-05 10:06:18 +00:00
mythria
9d5e6129c4 [Interpreter] Collect type feedback for 'new' in the bytecode handler
Collect type feedback in the bytecode handler for 'new' bytecode. The
earlier cl (https://codereview.chromium.org/2153433002/) was reverted
because that implementation did not collect allocation site feedback.
This regressed delta blue by an order of magnitude. This implementation
includes collection of allocation site feedback.

BUG=v8:4280, v8:4780
LOG=N

Review-Url: https://codereview.chromium.org/2190293003
Cr-Commit-Position: refs/heads/master@{#38364}
2016-08-05 09:58:39 +00:00
bgeron
4b4c354b91 [turbofan] Refactor js-inlining.cc to use more graph(), jsgraph(), javascript(), common().
BUG=

Review-Url: https://codereview.chromium.org/2211963002
Cr-Commit-Position: refs/heads/master@{#38363}
2016-08-05 09:54:47 +00:00
machenbach
11d0d16ea9 [test] Fix merging of test outcomes
BUG=v8:5238

Review-Url: https://codereview.chromium.org/2216293002
Cr-Commit-Position: refs/heads/master@{#38362}
2016-08-05 09:43:29 +00:00
georgia.kouveli
28e3467a72 [stubs,interpreter] Optimise SMI loading for 64-bit targets.
Adding new methods to the code stub assembler and interpreter
assembler to combine loading and untagging SMIs, so that on 64-bit
architectures we can avoid loading the full 64 bits and load the
32 interesting bits directly instead.

Review-Url: https://codereview.chromium.org/2183923003
Cr-Commit-Position: refs/heads/master@{#38361}
2016-08-05 09:34:08 +00:00
mstarzinger
f00b42ae31 [interpreter] Fix profiler when hitting OSR frame.
This fixes the runtime profiler to no longer assume that seeing an
optimized frame on the stack implies the underlying function is not
being interpreted when entered normally. This no longer holds with code
generated for OSR directly from bytecode (not installed on function).

R=rmcilroy@chromium.org
TEST=mjsunit/regress/regress-crbug-632800
BUG=chromium:632800

Review-Url: https://codereview.chromium.org/2208603005
Cr-Commit-Position: refs/heads/master@{#38360}
2016-08-05 08:47:48 +00:00
mstarzinger
5671b663f9 [interpreter] Avoid tier-up when there is an OSR activation.
This makes sure we prevent a tier-up for function which also have an
optimized activation of OSR code on the stack. In case the OSR code
deoptimizes, it needs the bytecode to still be around.

R=rmcilroy@chromium.org
TEST=mjsunit/regress/regress-5262
BUG=v8:5262

Review-Url: https://codereview.chromium.org/2206363004
Cr-Commit-Position: refs/heads/master@{#38359}
2016-08-05 07:55:03 +00:00
yangguo
771b81f806 [debug] fix exception prediction for asm frames.
R=mstarzinger@chromium.org
BUG=chromium:633999

Review-Url: https://codereview.chromium.org/2215713002
Cr-Commit-Position: refs/heads/master@{#38358}
2016-08-05 07:14:21 +00:00
machenbach
0dabe5f6fe [test] Skip test failing without i18n support
BUG=chromium:634273,chromium:634357,v8:5162
NOTRY=true
TBR=caitp

Review-Url: https://codereview.chromium.org/2211383002
Cr-Commit-Position: refs/heads/master@{#38357}
2016-08-05 07:10:35 +00:00
machenbach
e1b5cb43a9 Revert of [api] Clean up scopes and precheck instantiations cache (patchset id:40001 of https://codereview.chromium.org/2206773003/ )
Reason for revert:
[Sheriff] Leads to mac asan failures:
https://build.chromium.org/p/client.v8/builders/V8%20Mac64%20ASAN/builds/7835

Original issue's description:
> [api] Clean up scopes and precheck instantiations cache
>
> Make sure all the scopes used in api-natives.cc have inlineable constructors
> and destructors. Additionally directly precheck the instantiations cache before
> trying to enter the InvokeScope which sets the save_context.
>
> BUG=chromium:630217
>
> Committed: https://crrev.com/a2496b942cad524f0f3144b107936eaa9a7c9fd5
> Cr-Commit-Position: refs/heads/master@{#38346}

TBR=yangguo@chromium.org,cbruni@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:630217

Review-Url: https://codereview.chromium.org/2216903003
Cr-Commit-Position: refs/heads/master@{#38356}
2016-08-05 06:56:33 +00:00
bmeurer
cad5b29610 [turbofan] Remove unnecessary prototype checks for element access.
We don't need to add stability dependencies on JSObject prototypes when
storing to an element, because we do the map check (and thereby guard
the elements kind) and we also properly deoptimize on holes if the array
protector is not usable.

R=verwaest@chromium.org
BUG=chromium:616709

Review-Url: https://codereview.chromium.org/2198833002
Cr-Commit-Position: refs/heads/master@{#38355}
2016-08-05 04:55:03 +00:00
v8-autoroll
9216b2bd4c Update V8 DEPS.
Rolling v8/build to f0243d787961584ac95a86e7dae897b9b60ea674

Rolling v8/buildtools to 9c6ad6f5cbc2f30989edc3504ec7f9d360542512

Rolling v8/tools/clang to 0b06ba9e49a0cba97f6accd71a974c1623d69e16

Rolling v8/tools/mb to 60b89880ddfbccdc978f3c1562b2431119aea3d4

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

Review-Url: https://codereview.chromium.org/2211333002
Cr-Commit-Position: refs/heads/master@{#38354}
2016-08-05 03:24:21 +00:00
caitp
0272aa502f [promise] separate PerformPromiseThen from PromiseThen
The `PerformPromiseThen` spec-internal operation is used by the async functions
proposal, in order to ensure that AwaitExpressions are not observable via
usual mechanisms/hooks, such as Symbol.species.

BUG=v8:5253
R=littledan@chromium.org, adamk@chromium.org, gsathya@chromium.org, yangguo@chromium.org

Review-Url: https://codereview.chromium.org/2209433003
Cr-Commit-Position: refs/heads/master@{#38353}
2016-08-04 22:56:45 +00:00
clarkchenwang
e1a58dc439 [wasm] Fix build error on MIPS
BUG=

Review-Url: https://codereview.chromium.org/2216813002
Cr-Commit-Position: refs/heads/master@{#38352}
2016-08-04 22:05:08 +00:00
alph
3214886855 Initial implementation of dedicated FixedArray processing.
FixedArrays could be shown differently based on their subtypes.

Review-Url: https://codereview.chromium.org/2208753002
Cr-Commit-Position: refs/heads/master@{#38351}
2016-08-04 21:05:34 +00:00
gdeepti
1269306a3b [wasm] Grow memory should return -1 on failure.
Return -1 instead of out of throwing errors, update tests.

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

Review-Url: https://codereview.chromium.org/2216443002
Cr-Commit-Position: refs/heads/master@{#38350}
2016-08-04 20:39:32 +00:00
clarkchenwang
dfd8db8bec Add signature checking when directly import a foreign function
Review-Url: https://codereview.chromium.org/2204703002
Cr-Commit-Position: refs/heads/master@{#38349}
2016-08-04 20:34:02 +00:00
marja
bf3081c837 Put Scopes into temporary Zone (second try)
When parsing a eagerly-parsed-but-lazily-compiled function, we
used to put some of its AST nodes into a discardable Zone. This
CL puts the function Scope, its inner Scopes and the related AST
nodes (Declarations, VariableProxys) into the temporary Zone
too. This reduces peak memory usage and enables future work to
keep the temporary Zone around for later compilation.

BUG=

Review-Url: https://codereview.chromium.org/2210243002
Cr-Commit-Position: refs/heads/master@{#38348}
2016-08-04 19:15:55 +00:00