Commit Graph

8737 Commits

Author SHA1 Message Date
Mircea Trofin
b03b1bd9a8 Revert "Revert "[wasm] JIT using WasmCodeManager""
This reverts commit b301203e5a.

Reason for revert: Fixed issues on arm.

Original change's description:
> Revert "[wasm] JIT using WasmCodeManager"
> 
> This reverts commit d4c8393c1c.
> 
> Reason for revert: Breaks ARM hardware:
> https://build.chromium.org/p/client.v8.ports/builders/V8%20Arm%20-%20debug/builds/5268
> 
> Original change's description:
> > [wasm] JIT using WasmCodeManager
> > 
> > This is the first step towards wasm code sharing. This CL moves wasm
> > code generation outside the JavaScript GC heap using the previously -
> > introduced WasmCodeManager (all this, behind the --wasm-jit-to-native
> > flag).
> > 
> > See design document: go/wasm-on-native-heap-stage-1
> > 
> > This CL doesn't change other wasm architectural invariants. We still
> > have per-Isolate wasm code generation, and per-wasm module instance
> > code specialization.
> > 
> > Bug:v8:6876
> > 
> > Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
> > Change-Id: I1e08cecad75f93fb081545c31228a4568be276d3
> > Reviewed-on: https://chromium-review.googlesource.com/674086
> > Reviewed-by: Ben Titzer <titzer@chromium.org>
> > Reviewed-by: Eric Holk <eholk@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#49689}
> 
> TBR=bradnelson@chromium.org,titzer@chromium.org,mtrofin@chromium.org,eholk@chromium.org
> 
> Change-Id: I89af1ea5decd841bc12cd2ceaf74d32bc4433885
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: v8:6876
> Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
> Reviewed-on: https://chromium-review.googlesource.com/794690
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#49691}

TBR=bradnelson@chromium.org,machenbach@chromium.org,titzer@chromium.org,mtrofin@chromium.org,eholk@chromium.org

Change-Id: I1b07638d1bb2ba0664305b4b2dcfc1342dc8444f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6876
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/794434
Commit-Queue: Mircea Trofin <mtrofin@chromium.org>
Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49692}
2017-11-28 22:27:13 +00:00
Michael Achenbach
b301203e5a Revert "[wasm] JIT using WasmCodeManager"
This reverts commit d4c8393c1c.

Reason for revert: Breaks ARM hardware:
https://build.chromium.org/p/client.v8.ports/builders/V8%20Arm%20-%20debug/builds/5268

Original change's description:
> [wasm] JIT using WasmCodeManager
> 
> This is the first step towards wasm code sharing. This CL moves wasm
> code generation outside the JavaScript GC heap using the previously -
> introduced WasmCodeManager (all this, behind the --wasm-jit-to-native
> flag).
> 
> See design document: go/wasm-on-native-heap-stage-1
> 
> This CL doesn't change other wasm architectural invariants. We still
> have per-Isolate wasm code generation, and per-wasm module instance
> code specialization.
> 
> Bug:v8:6876
> 
> Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
> Change-Id: I1e08cecad75f93fb081545c31228a4568be276d3
> Reviewed-on: https://chromium-review.googlesource.com/674086
> Reviewed-by: Ben Titzer <titzer@chromium.org>
> Reviewed-by: Eric Holk <eholk@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#49689}

TBR=bradnelson@chromium.org,titzer@chromium.org,mtrofin@chromium.org,eholk@chromium.org

Change-Id: I89af1ea5decd841bc12cd2ceaf74d32bc4433885
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6876
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/794690
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49691}
2017-11-28 21:58:44 +00:00
Mircea Trofin
d4c8393c1c [wasm] JIT using WasmCodeManager
This is the first step towards wasm code sharing. This CL moves wasm
code generation outside the JavaScript GC heap using the previously -
introduced WasmCodeManager (all this, behind the --wasm-jit-to-native
flag).

See design document: go/wasm-on-native-heap-stage-1

This CL doesn't change other wasm architectural invariants. We still
have per-Isolate wasm code generation, and per-wasm module instance
code specialization.

Bug:v8:6876

Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I1e08cecad75f93fb081545c31228a4568be276d3
Reviewed-on: https://chromium-review.googlesource.com/674086
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Eric Holk <eholk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49689}
2017-11-28 20:39:25 +00:00
Sathya Gunasekaran
a667abbf8a [class] Add preparsed scope data test for computed class fields
Bug: v8:5367
Change-Id: I53fa815175bd0890756373cdcb3793201e4d4acb
Reviewed-on: https://chromium-review.googlesource.com/793193
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49688}
2017-11-28 19:29:26 +00:00
Adam Klein
b20dc76909 Remove always-on --harmony-template-escapes flag
It was shipped in Chrome 62.

Bug: v8:5546, v8:4829
Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: I3ac318639f1f7483d4d4f4fe5606387a856be98a
Reviewed-on: https://chromium-review.googlesource.com/777940
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49687}
2017-11-28 18:36:41 +00:00
Ulan Degenbaev
e1913d542e Disable test variants on TSAN for test using a lot of memory.
These tests are failing with OOM.

Bug: v8:6924
Change-Id: I988814350c6199ca5c1976e3f09d3b96e42ec0ff
Reviewed-on: https://chromium-review.googlesource.com/793044
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49686}
2017-11-28 17:50:36 +00:00
Sathya Gunasekaran
ffda54fbd4 [class] Throw early errors for fields with constructor and prototype name
See https://tc39.github.io/proposal-class-fields/#sec-static-semantics-early-errors

Bug: v8:5367
Change-Id: I0329d1b41c4658b733df47397fbcc2c16bad117e
Reviewed-on: https://chromium-review.googlesource.com/792946
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49672}
2017-11-28 15:00:18 +00:00
Predrag Rudic
25d4f93740 Reland "MIPS[64] Implementation of MSA instructions on builtin simulator"
This is reland of 3e0bf580e8
Original change's description:
> This commit is a step toward enabling test-run-wasm-simd tests for MIPS.
> 36 of those were failing in V8 builtin simulator because some instructions
> were not implemented.  Also there are minor fixes to some of the already
> implemented instructions.
>
> This commit has only 32-bit implementation. After review I will add
> 64-bit version.
>
> Bug:
> Change-Id: I25b0cac352db3efb56b922ace64ab2aaef82472d
> Reviewed-on: https://chromium-review.googlesource.com/744008
> Reviewed-by: Ivica Bogosavljevic <ivica.bogosavljevic@mips.com>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Commit-Queue: Ivica Bogosavljevic <ivica.bogosavljevic@mips.com>
> Cr-Commit-Position: refs/heads/master@{#49439}

Bug: 
Change-Id: I3a904caf675d314186c02c1c843d1e6a91a21a14
Reviewed-on: https://chromium-review.googlesource.com/776813
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Ivica Bogosavljevic <ivica.bogosavljevic@mips.com>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Ivica Bogosavljevic <ivica.bogosavljevic@mips.com>
Cr-Commit-Position: refs/heads/master@{#49666}
2017-11-28 13:43:23 +00:00
Sathya Gunasekaran
42bc9e8c64 [class] Expand bytecode expectations coverage for class fields
Bug: v8:5367
Change-Id: Ib24190f6cfc0765794a1a5d9ac33cf1c1e2b6fba
Reviewed-on: https://chromium-review.googlesource.com/793150
Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49665}
2017-11-28 13:21:36 +00:00
Andreas Haas
c7fb0e0947 [wasm] Remove fine-grained CodeSpaceMemoryModificationScopes
In a recent CL I introduced module-level CodeSpaceMemoryModificationScopes,
which means that the number of CodeSpaceMemoryModificationScopes which
are opened aside from TurboFan compilation is not linear in the number
of functions anymore. In that CL, however, I did not remove scopes which
became obsolete. This CL removes now these obsolete scopes, and
introduces some scopes where shared code was used from outside the
compilation logic.

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

Bug: chromium:787731
Change-Id: I37d514efa3a4b10adb7008986a9c91e4557ce618
Reviewed-on: https://chromium-review.googlesource.com/790490
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49662}
2017-11-28 10:34:39 +00:00
Sathya Gunasekaran
94dfb8a1f4 [class] Add harmony-public-fields flag
Change the existing uses of the harmony-class-fields flag to
harmony-public-fields so that we can stage this separately
from the upcoming harmony-private-fields to get some
clusterfuzz coverage.

Bug: v8:5367
Change-Id: I76cdefa4faf34eae73d3a5f6d6089cf75677732a
Reviewed-on: https://chromium-review.googlesource.com/792940
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49661}
2017-11-28 10:19:29 +00:00
Sathya Gunasekaran
34657ab30b [class] Implement super property access in instance fields
Bug: v8:5367
Change-Id: Ic725c5ef22ab05891764d3ebf9a99c0d383e6d90
Reviewed-on: https://chromium-review.googlesource.com/789939
Reviewed-by: Mythri Alle <mythria@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49660}
2017-11-28 10:14:19 +00:00
Michael Lippautz
4cb6ef8374 [heap] Move sweeper to separate file
Bug: 
Change-Id: Ie516167f047e48cda47a5dbfb156ea9ae164046c
Reviewed-on: https://chromium-review.googlesource.com/789878
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49656}
2017-11-28 09:22:09 +00:00
jing.bao
6aaf71d795 [ia32][wasm] Add I8x16 BinOp and CompareOp.
Add/AddSaturateS/Sub/SubSaturateS/AddSaturateU/SubSaturateU
MinS/MaxS/MinU/MaxU
Eq/Ne/GtS/GeS/GtU/GeU

Bug: 
Change-Id: Ib802dcfceac073090602d09a7fb037ec498e493d
Reviewed-on: https://chromium-review.googlesource.com/788595
Commit-Queue: Jing Bao <jing.bao@intel.com>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49649}
2017-11-28 05:44:09 +00:00
Adam Klein
a868f6e3fc [cctest] Add a bit of test coverage for disallowing await in async params
This enforces that we use ParseExpressionCoverGrammar, and not ParseExpression,
for several tricky cases. Also clarify comment on ParserBase::ParseExpression().

Change-Id: I1d1289abdf539c96f4b42f97c79a8adf3c06e728
Reviewed-on: https://chromium-review.googlesource.com/783171
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49647}
2017-11-27 23:35:28 +00:00
Adam Klein
bfa90f7e7c Move function name var initialization to BytecodeGenerator
Besides avoiding the weird hack of inserting a statement at the 0th
index of the function body, we also avoid allocating (and initializing)
the variable if it's unreferenced (which I'd wager is the common case).

Bug: v8:6092
Change-Id: If917d422bb4818cf21e8272aa786ca84d4472802
Reviewed-on: https://chromium-review.googlesource.com/784092
Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49646}
2017-11-27 18:37:47 +00:00
Sathya Gunasekaran
4ca9d843f8 [class] Store class fields initializer on the constructor
Previously, the class fields initializer function was stored on a
synthetic context allocated variable. This approach had sevaral
problems:

- We didn't know that class literal had fields until after we had
completely parsed the class literal. This meant that we had to go back
and fix up the scope of the constructor to have this synthetic
variable. This resulted in mismatch between parser and preparsed scope
data.

- This synthetic variable could potentially resolve to an initializer
of an outer class.

For ex:
class X extends Object {
  c = 1;
  constructor() {
    var t = () => {
      class P extends Object {
        constructor() {
          var t = () => { super(); };
          t();
        }
      }
      super();
    }
    t();
  }
}

In this the inner class P could access the outer class X's initiliazer
function. We would have to maintain extra metadata to make sure this
doesn't happen.

Instead this new approach uses a private symbol to store the
initializer function on the class constructor itself.

For the base constructor case, we can simply check for a bit on the
constructor function literal to see if we need to emit code that loads
and calls this initializer function. Therefore, we don't pay the cost
of loading this function in case there are no class fields.

For the derived constructor case, there are two possiblities:
(a) We are in a super() call directly in the derived constructor:

In this case we can do a check similar to the base constructor check,
we can check for a bit on the derived constructor and emit code for
loading and calling the initializer function.

This is usually the common case and we don't pay any cost for not using
class fields.

(b) We are in a super() call inside an arrow function in the derived
constructor:

In this case, we /always/ emit code to load and call the initializer
function. If the function doesn't exist then we have undefined and we
don't call anything. Otherwise we call the function.

super() can't be called twice so even if we emit code to load and call
the initializer function multiple times, it doesn't matter because it
would have already been an error.

Bug: v8:5367
Change-Id: I7f77cd6493ff84cf0e430a8c1039bc9ac6941a88
Reviewed-on: https://chromium-review.googlesource.com/781660
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49628}
2017-11-27 10:35:11 +00:00
Yang Guo
13a68e6c29 [snapshot] make API external references optional.
In snapshots with several contexts, some contexts may not reference
function or object templates, and therefore would not require external
references for deserialization. However, function and object templates
are deserialized with the isolate as part of the partial snapshot cache,
so we would need these external references even if we only use contexts
that don't need them.

With this patch, we use a fallback in case no external references are
provided. This way, we only run into issues when we actually call native
callbacks.

R=jgruber@chromium.org, peria@chromium.org

Change-Id: I6af8a77f26c92bd73fdab6112474c62da270597f
Reviewed-on: https://chromium-review.googlesource.com/784831
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49615}
2017-11-24 09:46:53 +00:00
jing.bao
2e8ac7bb86 [ia32][wasm] Add I16x8 CompareOp, I16x8Neg and I8x16Neg.
I16x8 GtS/GeS/GtU/GeU
I16x8Neg, I8x16Neg
Add Psignb, Psignw, Psubb, Psubw macros

Bug: 
Change-Id: Id38f15140727051e185054295722282b77ea889c
Reviewed-on: https://chromium-review.googlesource.com/773831
Commit-Queue: Jing Bao <jing.bao@intel.com>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49610}
2017-11-24 01:29:30 +00:00
Toon Verwaest
da0af28545 [interpreter] DYNAMIC_GLOBAL needs to walk the context chain starting from current_scope, not closure_scope
The main reason why we currently don't see this fail is that block-scopes always appear to have an extension: the scope info object is stored there.

Bug: 
Change-Id: I38f0c15387e235eeea9a57c95af0d9eb185dad2a
Reviewed-on: https://chromium-review.googlesource.com/785951
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49585}
2017-11-22 17:40:26 +00:00
Igor Sheludko
00a781dbc3 [runtime] Ensure elements transitions don't interfere with field type tracking.
This CL ensures that elements kind transitions don't cause silent
mutable-to-constant or any-to-class-type migrations of in-place
generalizable fields.

Bug: v8:5495, chromium:783132
Change-Id: Ie60224db62bd45d27148ae0469c7af5a3fe944fd
Reviewed-on: https://chromium-review.googlesource.com/785190
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49583}
2017-11-22 16:51:47 +00:00
Bill Budge
0481b23e25 [Memory] Rewrite platform OS Commit / Uncommit in terms of permissions.
- Eliminates CommitRegion and UncommitRegion methods, replacing them with
  calls to SetPermissions.
- Makes a similar change to the API of VirtualMemory.
- This changes system calls from mmap to mprotect on most POSIX platforms.

Bug: chromium:756050
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ib10f8293c9398c6c1e729cd7d686b7c97e6a5d75
Reviewed-on: https://chromium-review.googlesource.com/769679
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49552}
2017-11-21 16:48:55 +00:00
Mircea Trofin
bd63de9cc1 [wasm] Ensure serializability of JS_TO_WASM wrappers
On x64, we optimize out EmbeddedReferences, unless we explicitly
indicate serialization is enabled. We serialize js-to-wasm wrappers,
which include such references.

Bug: v8:7083
Change-Id: I976da4af74bf7ee3245e1465b8e47f2c042ec3b4
Reviewed-on: https://chromium-review.googlesource.com/780207
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Eric Holk <eholk@chromium.org>
Commit-Queue: Mircea Trofin <mtrofin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49546}
2017-11-21 14:57:44 +00:00
Igor Sheludko
d8c355fcac [runtime] Stop using Map::unused_property_fields() byte.
The unused properties fields number is calculatable via used in-object
properties count and we can drop it now.

Bug: chromium:774644
Change-Id: I7388af7772a8e793593fabc46527886cf2e36095
Reviewed-on: https://chromium-review.googlesource.com/781465
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49542}
2017-11-21 14:07:04 +00:00
Andreas Haas
6607bac5f4 [wasm-streaming] Fix function index calculation
The index of a function in the WasmModule data structure is offset by
the number of imported functions in the module. The {DecodeFunctionBody}
function of the module decoder, however, requires the function index
without this offset. The streaming processor mixed up these two ranges
of function indices. This is fixed in this CL.

R=clemensh@chromium.org

Bug: chromium:781507
Change-Id: Ie3e0c4703b06ecb923c98ffb961844915323197c
Reviewed-on: https://chromium-review.googlesource.com/776680
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49523}
2017-11-21 10:51:13 +00:00
Alexei Filippov
8c5e2d758d [cpu-profiler] Deprecate Isolate::GetCpuProfiler and CpuProfiler::CollectSample functions.
BUG=v8:7070

Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I92d7c61afa88e0a52c8eed0c2a44a4e49847e83b
Reviewed-on: https://chromium-review.googlesource.com/767618
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Alexei Filippov <alph@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49514}
2017-11-21 00:56:56 +00:00
Michael Lippautz
5cf75a1ad3 Global handles: More test coverage
Bug: 
Change-Id: Ia3e42c8bfc8773fbd160f4200337617afd54d445
Reviewed-on: https://chromium-review.googlesource.com/779196
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49497}
2017-11-20 14:48:04 +00:00
Andreas Haas
d9b42b7b34 [wasm] Handle modules without code in streaming compilation
Streaming compilation started the compilation of a module at the
beginning of the code section. However, there exist valid modules which
do not contain a code section. In this CL we check for the existence of
a code section when we finish the stream. We do this by checking if the
module compiler in the AsyncCompileJob exists, because the module
compiler gets initialized at the beginning of the code section.

If we detect that compilation has not been started because there was no
code section, then we start compilation when the stream finishes.

R=clemensh@chromium.org

Bug: chromium:771973
Change-Id: I7c95a7a791d02254f086961e7cd81885eec27382
Reviewed-on: https://chromium-review.googlesource.com/778541
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49494}
2017-11-20 13:58:04 +00:00
Michael Lippautz
a9cab08e6c [heap] Re-enable parallel marking
Bug: chromium:750084
Change-Id: I3d449ab76101100866b18db776b9f282154a77d9
Reviewed-on: https://chromium-review.googlesource.com/768679
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49491}
2017-11-20 13:03:03 +00:00
Peter Marshall
365bb5bb4a [regexp] Add a CSA fast path for replace with global regexp.
For simple replacement strings without $ characters, we can do the
replacement in CSA for a global regexp. This is a common case because
this is currently the most widely used way to 'replaceAll' in a string.

This CL speeds up the test case in the linked bug by 13%.

Bug: v8:7053
Change-Id: I0d1d7c25fed07dfd7927191a3ef3138302e10c8f
Reviewed-on: https://chromium-review.googlesource.com/774440
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49472}
2017-11-20 09:50:01 +00:00
Benedikt Meurer
a9a1671345 [cleanup] Rename "array protector" to "no elements protector".
The "array protector" now guards the Object.prototype, the
Array.prototype and the String.prototype, so the name was a
bit misleading nowadays. So the new name "no elements protector"
was chosen.

Bug: v8:6936, v8:7014, v8:7027
Change-Id: I9a9d7caa2caf0ac9e78cc6658de2f0506970dfa2
Reviewed-on: https://chromium-review.googlesource.com/778162
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49471}
2017-11-20 09:43:35 +00:00
Yang Guo
aae52f6b0f [snapshot] introduce more maps for rehashing.
R=mstarzinger@chromium.org

Bug: v8:6593
Change-Id: Ica794c7b0d779f04647d2b2c5ce7762a537620ae
Reviewed-on: https://chromium-review.googlesource.com/759793
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49469}
2017-11-19 10:39:16 +00:00
Anna Henningsen
09b53eef4c [api] Make running scripts in AddMessageListener callback work in debug mode
The existance of an `AllowJavascriptExecutionDebugOnly` scope in
`Isolate::ReportPendingMessages()` indicates that the API supports
running arbitrary JS code in a `AddMessageListener` callback.

Currently, this can fail in debug mode: The
`!isolate->external_caught_exception()` condition is checked when
entering API methods inside such a handler. However, if there is
a verbose `TryCatch` active when the exception occurs, this
check fails, and when calling `ToString()` on the exception object
leaves a pending exception itself, the flag is re-set to `true`.

Fix this problem by clearing the flag and the pending exception if
there was one during `ToString()`. This matches the code a few lines
up in `messages.cc`, so the exception state is now consistent
during the callback.

This currently makes a Node.js test fail in debug mode
(`parallel/test-error-reporting`).

Bug: node:7144
Bug: node:17016
Change-Id: I060d00fea3e9a497f4df34c6ff8d6e29ebe96321
Reviewed-on: https://chromium-review.googlesource.com/718096
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49466}
2017-11-18 23:39:29 +00:00
Jakob Kummerow
977da55033 [bigint] Encapsulate internals in MutableBigInt
This CL creates the invariant that the BigInt class treats
BigInt objects as immutable. Writing to new BigInt objects
as part of their construction is done by the MutableBigInt
helper class, which in turn is hidden as an implementation
detail in bigint.cc.
As a side effect, this refactoring enforces right-trimming
checks for all newly created BigInts, and ensures that all
BigInt allocations possibly exceeding kMaxLength check for
this case and throw a RangeError instead of crashing.

Bug: v8:6791
Tbr: mlippautz@chromium.org
Change-Id: Id239746108e6b076b47a03ba37462001eb501507
Reviewed-on: https://chromium-review.googlesource.com/742329
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49462}
2017-11-17 23:06:52 +00:00
Igor Sheludko
cc9e77abe8 Reland^2 "[runtime] Slightly optimize creation of class literals."
This CL also includes fixes for CF issues found while the previous
reland was active.

Bug: v8:5799, chromium:783902, chromium:783926, chromium:783822
Change-Id: I1f7d9b037d90838469c45f5d72771a77444c662e
Reviewed-on: https://chromium-review.googlesource.com/764067
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49457}
2017-11-17 18:15:34 +00:00
Michael Lippautz
71ad48fb8f [api] Mark MarkIndependent as soon deprecated
Persistent handles are always independent these days. Users should mark
weak handles as active using MarkActive if they want to keep weak
handles that are otherwise unreachable alive across scavenges.

Bug: chromium:780749
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I116e984ce14a035d1cef491d49f11a388fa8169d
Reviewed-on: https://chromium-review.googlesource.com/759794
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49456}
2017-11-17 18:14:29 +00:00
Adam Klein
d42534d441 Remove always-on flags for RegExp dotAll and lookbehind
Both of these features were shipped in Chrome 62.

Bug: v8:4545, v8:6172
Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: Ie00dcbeded7517a15696d4a78fcfbbf162919923
Reviewed-on: https://chromium-review.googlesource.com/775601
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49453}
2017-11-17 16:47:19 +00:00
Jakob Gruber
4ad4a8d725 Eager-deserialize in test-debug/BuiltinsExceptionPrediction
This test iterates all builtin objects; explicitly deserialize builtins
when necessary to avoid verifying DeserializeLazy by accident.

Bug: v8:6624
Change-Id: Iab3f708380809b7486ef11a2816e9593ee7e65cd
Reviewed-on: https://chromium-review.googlesource.com/654902
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49451}
2017-11-17 16:11:48 +00:00
Michael Achenbach
c13b62d7db Revert "[log] Properly log all maps creating during bootstrapping"
This reverts commit acfef3ec93.

Reason for revert: Makes logmaps timeout in nosnap mode:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap/builds/18933

Original change's description:
> [log] Properly log all maps creating during bootstrapping
> 
> Logger::LogMaps will print all maps currently present on the heap.
> 
> Note that currently this does not properly log the detailed transitions
> for these maps.
> 
> Change-Id: Ia3218d371549d7634fe3eda9e8e59b0b0bd8bebb
> Reviewed-on: https://chromium-review.googlesource.com/753885
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Commit-Queue: Camillo Bruni <cbruni@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#49444}

TBR=yangguo@chromium.org,cbruni@chromium.org

Change-Id: I264362552cbc2f8f0c1df84412f4dbeea08ef384
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/776815
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49447}
2017-11-17 13:38:54 +00:00
Camillo Bruni
acfef3ec93 [log] Properly log all maps creating during bootstrapping
Logger::LogMaps will print all maps currently present on the heap.

Note that currently this does not properly log the detailed transitions
for these maps.

Change-Id: Ia3218d371549d7634fe3eda9e8e59b0b0bd8bebb
Reviewed-on: https://chromium-review.googlesource.com/753885
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49444}
2017-11-17 12:55:51 +00:00
Clemens Hammacher
4c420258d3 Revert "MIPS[64] Implementation of MSA instructions in builtin simulator"
This reverts commit 3e0bf580e8.

Reason for revert: MSVC does not compile any more, see https://build.chromium.org/p/client.v8/builders/V8%20Win64%20-%20msvc/builds/172

Original change's description:
> MIPS[64] Implementation of MSA instructions in builtin simulator
> 
> This commit is a step toward enabling test-run-wasm-simd tests for MIPS.
> 36 of those were failing in V8 builtin simulator because some instructions
> were not implemented.  Also there are minor fixes to some of the already
> implemented instructions.
> 
> This commit has only 32-bit implementation. After review I will add
> 64-bit version.
> 
> Bug: 
> Change-Id: I25b0cac352db3efb56b922ace64ab2aaef82472d
> Reviewed-on: https://chromium-review.googlesource.com/744008
> Reviewed-by: Ivica Bogosavljevic <ivica.bogosavljevic@mips.com>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Commit-Queue: Ivica Bogosavljevic <ivica.bogosavljevic@mips.com>
> Cr-Commit-Position: refs/heads/master@{#49439}

TBR=jkummerow@chromium.org,mstarzinger@chromium.org,mlippautz@chromium.org,bmeurer@chromium.org,predrag.rudic@mips.com,ivica.bogosavljevic@mips.com,Ilija.Pavlovic@mips.com,sreten.kovacevic@mips.com,Miran.Karic@imgtec.com

Change-Id: Ic0c6339473481fa75908e942bc86de2b5c6349d8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/776655
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49441}
2017-11-17 11:02:48 +00:00
Predrag Rudic
3e0bf580e8 MIPS[64] Implementation of MSA instructions in builtin simulator
This commit is a step toward enabling test-run-wasm-simd tests for MIPS.
36 of those were failing in V8 builtin simulator because some instructions
were not implemented.  Also there are minor fixes to some of the already
implemented instructions.

This commit has only 32-bit implementation. After review I will add
64-bit version.

Bug: 
Change-Id: I25b0cac352db3efb56b922ace64ab2aaef82472d
Reviewed-on: https://chromium-review.googlesource.com/744008
Reviewed-by: Ivica Bogosavljevic <ivica.bogosavljevic@mips.com>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Ivica Bogosavljevic <ivica.bogosavljevic@mips.com>
Cr-Commit-Position: refs/heads/master@{#49439}
2017-11-17 10:24:15 +00:00
Adam Klein
6e39c9e1a7 Remove always-on flag --harmony-strict-legacy-accessor-builtins
It was shipped in Chrome 62.

Bug: v8:5070
Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: I77119540411d1fe15691d40012cb96f4e2e45048
Reviewed-on: https://chromium-review.googlesource.com/776154
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49434}
2017-11-17 04:06:30 +00:00
Bill Budge
0df1471ac6 [Memory] Add base::OS::SetPermissions method.
- Adds SetPermissions method which returns bool result.
- Eliminates Guard, SetReadAndWritable, SetReadAndExecutable, and
  SetReadWriteAndExecutable methods.
- Adds some Fuchsia memory allocation implementation.
- Some minor fixes in usage of OS::AllocatePageSize and
  OS::CommitPageSize.
- Adds DCHECKs for sanitizing parameters to OS::Allocate/Free.

Bug: chromium:756050
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I966ec6f029dd0371d70eca20bae197d87956f8b5
Reviewed-on: https://chromium-review.googlesource.com/760657
Commit-Queue: Bill Budge <bbudge@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49430}
2017-11-16 20:09:12 +00:00
Michal Majewski
430e03b3c6 Remove shell info from testcase.
Bug: v8:6917
Change-Id: Ic50ed8aca2ef6b6e60eae194cf46c2264a416657
Reviewed-on: https://chromium-review.googlesource.com/774265
Commit-Queue: Michał Majewski <majeski@google.com>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49417}
2017-11-16 15:42:26 +00:00
Michal Majewski
0a12eaea45 Remove env field from testcase.
Bug: v8:6917
Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: I09fb05ac6d4b9b1223118494ce2c89e3ab5de109
Reviewed-on: https://chromium-review.googlesource.com/771870
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michał Majewski <majeski@google.com>
Cr-Commit-Position: refs/heads/master@{#49415}
2017-11-16 15:26:06 +00:00
Michael Starzinger
b8b622c94a [builtins] Set {builtin_index} during code allocation.
This ensures that the {Code::builtin_index} field is only set during
allocation of new {Code} objects, making this field truly immutable.

R=jgruber@chromium.org
BUG=v8:6792

Change-Id: Ic793346976183149e2d077e92cb9da3c925ea865
Reviewed-on: https://chromium-review.googlesource.com/774439
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49414}
2017-11-16 13:56:49 +00:00
Hannes Payer
6c431dde20 [heap] Always allocate executable MemoryChunks rw.
This CL also narrows the rw scopes on various call sites.

Bug: chromium:774108,v8:6792
Change-Id: I41a6f5dc4948833baaa441fb998ef40d8a832619
Reviewed-on: https://chromium-review.googlesource.com/758370
Commit-Queue: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49411}
2017-11-16 12:34:48 +00:00
jing.bao
69ab034892 [ia32][wasm] Add I16x8 Binop and CompareOp.
Mul/MinS/MaxS/AddSaturateU/SubSaturateU/MinU/MaxU, Eq/Ne

Bug: 
Change-Id: I197712c37dcbc6648be5fd040ca23f2ea777a4f3
Reviewed-on: https://chromium-review.googlesource.com/760156
Commit-Queue: Jing Bao <jing.bao@intel.com>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49395}
2017-11-16 02:40:35 +00:00
Georgia Kouveli
1adce94ab3 [arm64] Add CopyDoubleWordsMode option to CopyDoubleWords.
The option lets us use the function in cases where we cannot use the current
version due to restrictions on src and dst. This will be useful for some arm64
builtins when we pad the stack arguments, where we will need to copy the
existing arguments either one slot up or one slot down in memory.

Bug: v8:6644
Change-Id: I75281cdc9fa6812e3b24bf5756057c93305cbb95
Reviewed-on: https://chromium-review.googlesource.com/771711
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Georgia Kouveli <georgia.kouveli@arm.com>
Cr-Commit-Position: refs/heads/master@{#49394}
2017-11-15 19:03:47 +00:00