Commit Graph

56383 Commits

Author SHA1 Message Date
Tobias Tebbi
0ab6cc739f [torque] disable Windows ASAN unittests
Due to bug chromium:893437, Torque has ASAN disabled on Windows, which
makes it impossible to run unittests for Torque with ASAN being enabled
in the unittests. To fix this, this skips Torque unittests in the
unsupported configuration.

Bug: chromium:893437
Change-Id: I6c8eee1448c63223af4d7336954190e649d125e9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1632214
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61891}
2019-05-28 13:16:06 +00:00
Georg Schmid
6adb9f2973 Remove undefined value workaround in AllocateFastLiteral
R=bmeurer@chromium.org

Bug: v8:9299
Change-Id: I77e8b201bd5fd1c544cced301c8805571c4c1167
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1632212
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Georg Schmid <gsps@google.com>
Cr-Commit-Position: refs/heads/master@{#61890}
2019-05-28 12:39:27 +00:00
Clemens Hammacher
0b14b8a134 [cleanup] Remove 'typedef struct' and 'typedef enum'
Just use standard C++ syntax to define structs and enums instead.

R=ahaas@chromium.org

Bug: v8:9183
Change-Id: Ibae1643bd1dc74267cdd14ec45a36fc65bf0ab4b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631410
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61889}
2019-05-28 12:17:35 +00:00
Benedikt Meurer
1276640a90 [typedarray] There should be only a single TypedArray::kMaxLength.
Bug: v8:4153
Change-Id: I0aa5a3947fbeb9b4f186cff459518d95512ec5a0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1632151
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61888}
2019-05-28 11:38:12 +00:00
Santiago Aboy Solanes
b53dffe6f0 [ptr-compr][turbofan] Reduction of Compress after Constant
Reduces compressions of constants, going from
     Constant <- Compress <- Child
to
     Compressed_Constant <- Child

This pattern commonly appeared when the Constant was being used as a
Store value (e.g StoreElement's value).

Cq-Include-Trybots: luci.v8.try:v8_linux64_pointer_compression_rel_ng
Cq-Include-Trybots: luci.v8.try:v8_linux64_arm64_pointer_compression_rel_ng
Bug: v8:8977, v8:7703
Change-Id: I2e71f79ddd2a6fba42cdfe782cc89fff3a8d5ac1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627988
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61887}
2019-05-28 11:21:03 +00:00
Andreas Haas
d34178fd73 [wasm][anyref] Introduce the select_with_type instruction
The instruction is the same as the existing {select} instruction with
type. Both inputs must be in a sub-type relationship with the type
specified in the type instruction.

R=clemensh@chromium.org

Bug: v8:7581
Change-Id: Ibead6cd0253210828c8114336ea0942e6cbd6126
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631413
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61886}
2019-05-28 10:46:23 +00:00
Jakob Kummerow
f5ab7d38be [wasm-c-api] Add tests and fixes
In a new test suite: "wasm-api-tests", using a new binary "wasm_api_tests",
powered by gtest/gmock (like unittests).
Also fix a bunch of issues that these tests uncovered, mostly to ensure
that the stack is walkable.

Change-Id: I1d5604eea85da078ebecd4ebb7383647595f16ac
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627539
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61885}
2019-05-28 09:57:04 +00:00
Yu Yin
68da88559e [mips][cleanup] Drop some dead MacroAssembler code
see https://crrev.com/c/1627548
that CL remove this functions declaration in the header file, but did not
drop function definition in the cpp file.

Bug: v8:9183
Change-Id: I98bba3664510c0a6a6a047a8b9c7c43bcc4c3962
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631812
Auto-Submit: Yu Yin <xwafish@gmail.com>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61884}
2019-05-28 09:40:28 +00:00
Santiago Aboy Solanes
42ed37d015 [ptr-compr][cleanup] Removing the optimized map checks
The DecompressionElimination reducer can handle that case with the
comparison of Decompress vs HeapConstant. There is no need to do extra
work.

Reverts parts of https://chromium-review.googlesource.com/c/v8/v8/+/1518182.
The rest of that CL was reverted in a previous CL where the AccessBuilders
were updated.

Cq-Include-Trybots: luci.v8.try:v8_linux64_pointer_compression_rel_ng
Cq-Include-Trybots: luci.v8.try:v8_linux64_arm64_pointer_compression_rel_ng
Bug: v8:8977, v8:7703
Change-Id: I871577e49f9ccd95864af54bdd61884d34b7f223
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1628792
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61883}
2019-05-28 09:39:23 +00:00
Santiago Aboy Solanes
9ac150807c [ptr-compr][turbofan] Cleanup of different compresses
We currently have three different compresses that we thought it could be
a good idea to merge into only one. Merging them would make sense since
they all end up with the same code being generated. However, we would be
losing knowing the MachineRepresentation in the cases of CompressSigned
and Pointer.

For example, in machine-graph-verifier everything will have to be
MachineRepresentation::kCompressed
https://cs.chromium.org/chromium/src/v8/src/compiler/machine-graph-verifier.cc?l=226

Cq-Include-Trybots: luci.v8.try:v8_linux64_pointer_compression_rel_ng
Cq-Include-Trybots: luci.v8.try:v8_linux64_arm64_pointer_compression_rel_ng
Bug: v8:8977, v8:7703
Change-Id: I244e2e61cab2bb87830bc0aabdbe5e43f243b424
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1624798
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61882}
2019-05-28 09:37:43 +00:00
Georg Neis
41ff307e83 [interpreter] Fix c&p error in comments
Change-Id: I94ad60d487e64fa72cd3123c85a1b8460ea1007b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1630671
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61881}
2019-05-28 09:36:18 +00:00
Georg Neis
d9e1a7aeb8 [turbofan] Improve handling of empty types
- Fix a non-observable bug in the typer.
- Add some CHECKs where we rely on not receiving None types.
- Remove an explicit handling of None types where it's redundant and
  misleading (later ToNumeric conversions can again introduce None).

Bug: chromium:965911
Change-Id: I4bb84422de3f9297131e7304216b86884f04ed49
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1630679
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61880}
2019-05-28 09:35:13 +00:00
Benedikt Meurer
8c2c336b31 [objects] Always initialize double fields (with hole NaN).
This removes a special case from JSObject::WriteToField() where we
didn't store anything in case of initializing a double field with
the uninitialized sentinel. Instead we now store the hole NaN pattern
there, as in other places. This makes it possible to do stricter
checking in the TurboFan frontend when it comes to detecting bit
patterns.

Drive-by-fix: Refactor the related code in MigrateFastToFast() to
make it easier to follow the control flow.

Bug: v8:9299
Change-Id: Ic35d05c69fbbb136d422d29ce6abf2b09ebe22a6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631606
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61879}
2019-05-28 09:33:53 +00:00
Georg Neis
6cf0e1a5b0 Pass correct representation to FastPropertyAt
These two calls used Tagged, which may not match the field in question
and thus might leak a MutableHeapNumber.  Since the result was used in a
very limited way, this was not a correctness bug but it should be fixed
anyways.

Bug: chromium:966229
Change-Id: Id237729b60d980ded154f70d03e98375f5edc4cc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1630681
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61878}
2019-05-28 09:32:45 +00:00
Georg Neis
72fbd957bd [turbofan] Fix serialization of resumables
This is a quick fix for the recent bailout-on-uninitialized feature of
the serializer, which does not work with resumables. For now, simply
treat the ResumeGenerator bytecode as if it was an exception handler
entry point. I want to revisit this later because the proper fix might
be to teach the serializer about the SwitchOnGeneratorState bytecode.

Bug: chromium:966560, v8:7790
Change-Id: I48bc6ba7299faa29802159cc7c36f4629667b5d8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1630670
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61877}
2019-05-28 09:30:23 +00:00
v8-ci-autoroll-builder
15c54d98d7 Update V8 DEPS.
Rolling v8/build: 97564df..4cebfa3

Rolling v8/buildtools: 6884242..0218c0f

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/4d346fb..a7b3312

Rolling v8/third_party/depot_tools: 181e44c..26af0d3

Rolling v8/tools/clang: 9d46446..fe8ba88

TBR=machenbach@chromium.org,sergiyb@chromium.org,tmrts@chromium.org

Change-Id: I956064690ecd2aded8da168065711f8d0ca4e210
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1629851
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#61876}
2019-05-28 09:22:53 +00:00
Sigurd Schneider
ca1e609794 [turbofan] Restrict add folding
..to the case where the intermediary add is unused.

Bug: chromium:967186
Change-Id: I8ff95e71fbad88b9b1544f375303eb5400377631
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1632071
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61875}
2019-05-28 09:12:23 +00:00
Michael Lippautz
b528328d74 [heap] Guard starting of incremental marking with flag
Otherwise, we may execute the checkpoint more often which may change
timing on GCs unnecessarily as this code path is dependen on global
memory scheduling.

Bug: chromium:967573, chromium:948807
Change-Id: I8d5812dc752638801c6729b9b0c5640c3da945d1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631608
Auto-Submit: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61874}
2019-05-28 09:07:23 +00:00
Toon Verwaest
9e5741a5bb [runtime] Remove unused FieldIndex::is_hidden_field
Change-Id: Ie4e12c8b65430a62f7ec045a28417f42e35a4c99
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1632070
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61873}
2019-05-28 09:01:23 +00:00
Clemens Hammacher
c6077bf1b8 [cleanup] Replace function typedefs by using declarations
Especially for function types, this increases readability significantly.
Also the style guide recommends for 'using' over 'typedef'.

R=mstarzinger@chromium.org

Bug: v8:9183
Change-Id: If2d17863de39383f5a35e089298d37408791ce4b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631415
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61872}
2019-05-28 08:35:08 +00:00
Mike Stanton
e7e233fdb9 [Turbofan] BytecodeGraphBuilder: Use native context directly.
In BuildLoadNativeContextField(), we have access to the native context
as a constant. Use it directly, rather than loading from the current
context.

Change-Id: I60cd97586bbe5f8336f809967a3df556d0d43049
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1630682
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61871}
2019-05-28 08:01:49 +00:00
Ulan Degenbaev
ee8a33b07a Fix --inline_new and --turbo_allocation_folding flags
Now heap checks for the --inline-new flag immediately after setup
before creating the initial objects.

Disabled inline allocation also disables allocation folding.

Additionally, the memory optimizer is changed to not update the
linear allocation area if allocation folding is disabled.

Change-Id: Ie43fe2d1b92c8e86204ee72a273dcf42ac89da59
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1624803
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61870}
2019-05-28 07:58:28 +00:00
Georg Schmid
123b0ba284 Show constness when debug-printing generalizations
R=bmeurer@chromium.org

Change-Id: I88f3300d34b185e88f8b6f391346630a7c22ecb4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631422
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Georg Schmid <gsps@google.com>
Cr-Commit-Position: refs/heads/master@{#61869}
2019-05-28 07:55:49 +00:00
Tobias Tebbi
f71cba999f [torque] allow multiple errors (one per declarable)
Drive-by fix: For JSON, it's illegal to have an \' escape sequence in a
double quote (") string literal.

Bug: v8:8880
Change-Id: I16de0ee731e93f5ea0db8f743c9b363a6bf50a43
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631599
Auto-Submit: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61868}
2019-05-28 04:33:18 +00:00
Paolo Severini
3a75c1fb57 Fixing a possible freeze on abort with 'v8_win64_unwinding_info'
Win64 unwind data can specify a language-specific handler function which is
called as part of the search for an exception handler, as described in
https://docs.microsoft.com/en-us/cpp/build/exception-handling-x64?view=vs-2019.
This is used for example by Crashpad to register its own exception handler for
exceptions in V8-generated code.
There is a problem in the code that may cause a freeze on abort: in file
\deps\v8\src\unwinding-info-win64.cc in function CRASH_HANDLER_FUNCTION_NAME the
line:
    return EXCEPTION_CONTINUE_SEARCH;
should be
    return ExceptionContinueSearch;

These constants are both used in the context of Win32 exception handlers, but
they have different semantics and unfortunately different values:
EXCEPTION_CONTINUE_SEARCH (=0) should be returned by an exception filter
while a language-specific handler should return an EXCEPTION_DISPOSITION value,
and more precisely ExceptionContinueSearch (=1) in this case.

Bug: v8:9295
Change-Id: I1a3aaabf357e52a909611814f1ea013cf652ae06
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1629795
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Paolo Severini <paolosev@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#61867}
2019-05-28 00:43:08 +00:00
Frank Tang
53c3d747fc [Intl] Stage Intl.NumberFormat Unified API Proposal
Plan to flip to ship in early June (after m76 branch) for chrome m77.
Spec: https://tc39.github.io/proposal-unified-intl-numberformat/
Design Doc: https://goo.gl/ZAtL1f
I2I: https://groups.google.com/a/chromium.org/forum/?fromgroups#!searchin/blink-dev/Intl%7Csort:date/blink-dev/q3U7sPOG1uo/M7XZU7fxAwAJ

Tests:
intl/number-format/unified/*
test262/intl402/NumberFormat/* (tests with Intl.NumberFormat-unified)

Bug: v8:8515
Change-Id: Ica4108d6ffcc8819940cb6cecb15d852ae7cdf14
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1629407
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61866}
2019-05-27 22:59:48 +00:00
Tobias Tebbi
19d8bfa5a8 [torque] no longer generate assemblers per namespace
Instead of generating one CodeStubAssembler-like class per namespace,
Torque-generated macros are now free-standing functions not included
from CSA code, and explicitly exported macros become part of the new
TorqueGeneratedExportedMacrosAssembler, which CodeStubAssembler
inherits from, thus making them available to all CSA code.

Structs are now defined in a new header csa-types-tq.h as free-standing
types with the prefix "TorqueStruct".

This is a preparation for generating per Torque-file instead of per
namespace.

Change-Id: I60fadc493a63f85d1d340768ec6f11ae47be0cb8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1628787
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61865}
2019-05-27 20:05:18 +00:00
Benedikt Meurer
70bd7cf0ef Reland "[typedarray] Move external/data pointer to JSTypedArray."
This is a reland of 4b86fea530 with
copy&paste typo in CodeStubAssembler::AllocateByteArray() fixed
(bug led to holes in new space, which was crashing reproducibly
on the ia32 bot).

Original change's description:
> [typedarray] Move external/data pointer to JSTypedArray.
>
> As the next step in supporting huge typed arrays in V8, this moves the
> external/data pointer from the FixedTypedArrayBase backing store to the
> JSTypedArray instance itself, and replaces the special backing stores
> with a plain ByteArray (removing all the code for the FixedTypedArrayBase
> class hierarchy). By doing so, we can drastically simplify the system
> around typed arrays.
>
> Note: Several places in the code base used to check the instance type
> of the elements backing store of a JSTypedArray instead of checking the
> elements kind on the JSTypedArray map directly. Those had to be fixed,
> since the backing store is now always a ByteArray.
>
> Drive-by-fix: Move all the typed elements access related code into the
> elements.cc file to properly encapsulate the accesses.
>
> Doc: http://doc/1Z-wM2qwvAuxH46e9ivtkYvKzzwYZg8ymm0x0wJaomow
> Bug: chromium:951196, chromium:965583, v8:4153, v8:7881, v8:9183
> Change-Id: I8cc06b190c53e34155000b4560f5f3ef40621646
> Cq-Include-Trybots: luci.chromium.try:linux-rel,win7-rel
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627535
> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Simon Zünd <szuend@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61855}

Tbr: petermarshall@chromium.org
Bug: chromium:951196, chromium:965583, v8:4153, v8:7881, v8:9183
Change-Id: I87fcdb28532c5f08cc227332a4d59546cb423810
Cq-Include-Trybots: luci.chromium.try:linux-rel, win7-rel
Cq-Include-Trybots: luci.v8.try:v8_linux_shared_compile_rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631592
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61864}
2019-05-27 17:44:06 +00:00
Paolo Severini
d4968875f5 Fixing a possible buffer overrun in win64_unwindinfo::InitUnwindingRecord
The code that copies code bytes from a MacroAssembler into a buffer in a
CodeRangeUnwindingRecord struct (used to store stack unwinding data) has an
error: it copies the whole MacroAssembler buffer size, not just the size of the
compiled instructions into an "exception thunk" array.
This has no real bad effects, because a CodeRangeUnwindingRecord is stored at
the beginning of a page reserved at the beginning of an isolate code range, but
it is quite bad and we need to fix it.

Bug: v8:3598
Change-Id: I0df0cf0173561cc939e6431bc0f01ef040fc189e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1629310
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Paolo Severini <paolosev@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#61863}
2019-05-27 17:38:46 +00:00
Z Nguyen-Huu
6e85742157 Optimize array clone for sealed, frozen objects
Improve micro-benchmark by ~5x
Before:
ApplySpreadLiteral
ApplySpreadLiteral-Numbers(Score): 279
SpreadCallSpreadLiteral
SpreadCallSpreadLiteral-Numbers(Score): 285

After:
ApplySpreadLiteral
ApplySpreadLiteral-Numbers(Score): 1074
SpreadCallSpreadLiteral
SpreadCallSpreadLiteral-Numbers(Score): 1009


Bug: v8:6831
Change-Id: Ifd676ca13d5b7e86afc1578636fdd4dc2733c474
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1628244
Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61862}
2019-05-27 17:26:06 +00:00
Michael Lippautz
d3e969934a [heap] Add embedder allocation rate signal
Consider embedder allocation rate when scheduling full garbage
collections.

Change-Id: If9c40df514c8346e21f6ba63eeca976acce4d122
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631423
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61861}
2019-05-27 16:28:56 +00:00
Michael Lippautz
03a82cc71e [heap] Fix embedder gc and mutator speed
Bug: chromium:948807
Change-Id: If863b552657daf39b76c6f8ba9e7e623eb86f858
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631425
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61860}
2019-05-27 15:58:46 +00:00
Clemens Hammacher
22b8fe3b7b [wasm] Fix alloc/dealloc size mismatch
On newer compilers the {operator delete} with explicit {size_t}
argument would be instantiated for {CompilationState} and used in the
destructor of {std::unique_ptr<CompilationState>}. The {size_t}
argument is wrong though, since the pointer actually points to a
{CompilationStateImpl} object.
Hence avoid this operator from being created by explicitly providing an
{operator delete}.

R=ulan@chromium.org

Change-Id: I54fef07179b3106f3154ddd43df040fe8e3cdde8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631426
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61859}
2019-05-27 15:29:06 +00:00
Clemens Hammacher
e253d97463 [wasm] Remove --trace-wasm-decode-time flag
This seems like a very specific flag which is rarely used. It not only
adds local overhead, but also requires an additional parameter at
{BuildGraphForWasmFunction}.
Thus this CL removes it completely. Interested parties can still measure
timing locally.

R=titzer@chromium.org

Bug: v8:9183
Change-Id: I5f152cdb9456d1001ed38722d44c71cf5ae44ae3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631420
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61858}
2019-05-27 15:06:17 +00:00
Peter Marshall
9a50c84fb6 [tracing] Add a test harness for perfetto tracing tests
Add test harness so that we can avoid all this boilerplate for common
tests in the future. Use it for the existing perfetto tracing test.

Cq-Include-Trybots: luci.v8.try:v8_linux64_perfetto_dbg_ng
Bug: v8:8339
Change-Id: Iddc716aade3eef2431bcc7eaa8b8b6502edaaa00
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631418
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61857}
2019-05-27 15:05:12 +00:00
Clemens Hammacher
e4db146ac9 Revert "[typedarray] Move external/data pointer to JSTypedArray."
This reverts commit 4b86fea530.

Reason for revert: Fails on linux shared: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20shared/31045

Original change's description:
> [typedarray] Move external/data pointer to JSTypedArray.
> 
> As the next step in supporting huge typed arrays in V8, this moves the
> external/data pointer from the FixedTypedArrayBase backing store to the
> JSTypedArray instance itself, and replaces the special backing stores
> with a plain ByteArray (removing all the code for the FixedTypedArrayBase
> class hierarchy). By doing so, we can drastically simplify the system
> around typed arrays.
> 
> Note: Several places in the code base used to check the instance type
> of the elements backing store of a JSTypedArray instead of checking the
> elements kind on the JSTypedArray map directly. Those had to be fixed,
> since the backing store is now always a ByteArray.
> 
> Drive-by-fix: Move all the typed elements access related code into the
> elements.cc file to properly encapsulate the accesses.
> 
> Doc: http://doc/1Z-wM2qwvAuxH46e9ivtkYvKzzwYZg8ymm0x0wJaomow
> Bug: chromium:951196, chromium:965583, v8:4153, v8:7881, v8:9183
> Change-Id: I8cc06b190c53e34155000b4560f5f3ef40621646
> Cq-Include-Trybots: luci.chromium.try:linux-rel,win7-rel
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627535
> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Simon Zünd <szuend@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61855}

TBR=ulan@chromium.org,yangguo@chromium.org,titzer@chromium.org,sigurds@chromium.org,petermarshall@chromium.org,bmeurer@chromium.org,szuend@chromium.org

Change-Id: I0bc1f935de6063acf75a0f4bb8c0ba67428603fd
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:951196, chromium:965583, v8:4153, v8:7881, v8:9183
Cq-Include-Trybots: luci.chromium.try:linux-rel, win7-rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631427
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61856}
2019-05-27 15:04:08 +00:00
Benedikt Meurer
4b86fea530 [typedarray] Move external/data pointer to JSTypedArray.
As the next step in supporting huge typed arrays in V8, this moves the
external/data pointer from the FixedTypedArrayBase backing store to the
JSTypedArray instance itself, and replaces the special backing stores
with a plain ByteArray (removing all the code for the FixedTypedArrayBase
class hierarchy). By doing so, we can drastically simplify the system
around typed arrays.

Note: Several places in the code base used to check the instance type
of the elements backing store of a JSTypedArray instead of checking the
elements kind on the JSTypedArray map directly. Those had to be fixed,
since the backing store is now always a ByteArray.

Drive-by-fix: Move all the typed elements access related code into the
elements.cc file to properly encapsulate the accesses.

Doc: http://doc/1Z-wM2qwvAuxH46e9ivtkYvKzzwYZg8ymm0x0wJaomow
Bug: chromium:951196, chromium:965583, v8:4153, v8:7881, v8:9183
Change-Id: I8cc06b190c53e34155000b4560f5f3ef40621646
Cq-Include-Trybots: luci.chromium.try:linux-rel,win7-rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627535
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61855}
2019-05-27 14:43:46 +00:00
Peter Marshall
d365f62ec1 [tracing] Add a way to test perfetto traces.
Add a new abstract class TraceEventListener which is just an interface
for consuming trace events. This separates the V8-specific stuff that
an actual perfetto consumer needs to do e.g. handling the has_more flag
and signalling back to the controller with a semaphore.

This is a change from the previous plan of making the PerfettoConsumer
class sub-classable to implement custom consumption of trace events.
This will be difficult when the consumer is created outside of the
PerfettoTracingController as we can't hook up the
consumer_finished_semaphore_ that belongs to the controller.

Now the PerfettoTracingController is responsible for the Consumer life-
cycle and hides it entirely from callers. We add the
AddTraceEventListener() method to allow callers to register a listener
either for testing or a JSON listener for real tracing.

This lets us write tests that can store all the trace events in memory
without first converting them to JSON, letting us write test more
easily. There's an example test add to test-tracing - more tests using
this style will follow.

Cq-Include-Trybots: luci.v8.try:v8_linux64_perfetto_dbg_ng
Bug: v8:8339
Change-Id: I2d2b0f408b1c7bed954144163e1968f40d772c1b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1628789
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Auto-Submit: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61854}
2019-05-27 14:28:36 +00:00
Jakob Gruber
8f6391932c [mksnapshot] Properly handle --target-os=ios
Bug: v8:9103
Change-Id: I7ff6bb0032fd5d81339401bbf8276baf19af8489
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631417
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61853}
2019-05-27 13:59:27 +00:00
Jakob Gruber
6cc1fffc51 [mksnapshot] Refactor platform-specific WriteByteChunk
This moves the platform-specific WriteByteChunk (& friends) into
platform-specific embedded file writers.

Bug: v8:9103
Change-Id: I0113c90dbf661a39dabe62b420cf6a160ee1be1d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631412
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61852}
2019-05-27 13:21:48 +00:00
Michael Starzinger
8c5d0e65c8 [wasm] Add preliminary {WebAssembly.Function.type} support.
This adds a reflective function to retrieve the function type of an
exported or constructed WebAssembly function object. Note that this
first implementation only supports exported functions for now, the
support for constructed functions will be done as a follow-up.

R=jkummerow@chromium.org
TEST=mjsunit/wasm/type-reflection
BUG=v8:7742

Change-Id: I38a16972d8437521993992ca20887c47c7c6b99b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627989
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61851}
2019-05-27 13:16:28 +00:00
Jakob Gruber
876618fbad [mksnapshot] Hide the win64 unwinding info writer
The win64-specific unwinding info writer should not be part of the
generic EmbeddedFileWriter class. Let's hide it in the platform-specific
writer.

Bug: v8:9103
Change-Id: Ifc4f8b326f07e037b6876e0592cb70b8281edb9a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627536
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61850}
2019-05-27 12:44:39 +00:00
Clemens Hammacher
a335f2aeed [cleanup] Replace simple typedefs by using
This replaces all typedefs that define types and not functions by the
equivalent "using" declaration.

This was done mostly automatically using this command:
ag -l '\btypedef\b' src test | xargs -L1 \
     perl -i -p0e 's/typedef ([^*;{}]+) (\w+);/using \2 = \1;/sg'

Patchset 2 then adds some manual changes for typedefs for pointer types,
where the regular expression did not match.

R=mstarzinger@chromium.org
TBR=yangguo@chromium.org, jarin@chromium.org

Bug: v8:9183
Change-Id: I6f6ee28d1793b7ac34a58f980b94babc21874b78
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631409
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61849}
2019-05-27 12:39:49 +00:00
Joyee Cheung
0ec82d51dc Fix compilation of V8_TRACE_FEEDBACK_UPDATES V8_TRACE_IGNITION
The `->` operator should be changed to `.` after
https://chromium-review.googlesource.com/c/v8/v8/+/1624209

Change-Id: Ie16adaa17bfc7caaa589ed3881a8716e98ea36b8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1628793
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Joyee Cheung <joyee@igalia.com>
Cr-Commit-Position: refs/heads/master@{#61848}
2019-05-27 11:26:44 +00:00
Ulan Degenbaev
b25557b377 [heap] Add command line flags for GC experiments
Bug: chromium:966832
Change-Id: Ie89dbbc1d92f746547aecf4752b6b3189bc251aa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627987
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61847}
2019-05-27 11:24:14 +00:00
Toon Verwaest
f58b7e1727 [json] Strings can lie to us about representation, so check what's underneath
Bug: chromium:967151
Change-Id: I54a856cfcc4b4b17bd282dd3eabe5a915e617ca5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1630683
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Auto-Submit: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61846}
2019-05-27 10:56:44 +00:00
Simon Zünd
82f6179c63 [array] Prevent negative work array capacity when sorting
When allocating large arrays on 32-bit systems, the length conversion
caused the work array capacity to become negative. As the sort range
is currently clamped at kSmiMaxValue anyway, the fix is to also
clamp the work capacity to that value.

R=jgruber@chromium.org

Bug: chromium:967065
Change-Id: I9ea60464c5b7f3796c5389cbaf668b990eddecf6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1630672
Auto-Submit: Simon Zünd <szuend@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61845}
2019-05-27 10:41:44 +00:00
Georg Schmid
5b27fd5d0b Track and check representations in load elimination
R=jarin@google.com, tebbi@google.com

Change-Id: Ic64ca132178f189a6d78a73ed18150ae503dd9a9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1617936
Auto-Submit: Georg Schmid <gsps@google.com>
Commit-Queue: Georg Schmid <gsps@google.com>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61844}
2019-05-27 10:28:24 +00:00
Jakob Gruber
5e42d8ed79 [mksnapshot] Move more files into src/snapshot/embedded/
Bug: v8:9103
Change-Id: I9a11bd99eb3f2b082749cf6a497ffe759216ad22
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627347
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61843}
2019-05-27 10:13:05 +00:00
Jakob Gruber
f77d110d99 Revert "[prof] Attribute ticks in embedded builtins correctly"
This reverts commit 384a51da42.

This hack is both broken (builtins now have individual symbols and no
longer resolve to v8_Default_embedded_blob_) and useless (profview
seems to detect builtins just fine without it).

Bug: v8:6666
Change-Id: I264b4de31124f1657f4dc570590eb73e53aa08d2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627344
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61842}
2019-05-27 10:11:14 +00:00