Commit Graph

2210 Commits

Author SHA1 Message Date
Sigurd Schneider
388e505a24 [cleanup] Remove OpParameter(Node*) helper
This also introduces FrameStateInfoOf helper.

Bug: v8:7517, v8:7310
Change-Id: If2dd1257fb9384fe957a980077a65154cc014d3b
Reviewed-on: https://chromium-review.googlesource.com/946009
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51718}
2018-03-05 10:05:05 +00:00
Georg Neis
2e2860f74f [ic] Introduce new IC for storing into array literals.
... and use it in the implementation of array literal spreads,
replacing calls to %AppendElement.

Array spreads in destructuring will be taken care of in a separate CL.

Bug: v8:5940, v8:7446
Change-Id: Idec52398902a7fd3c1244852cf73246f142404f0
Reviewed-on: https://chromium-review.googlesource.com/915364
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51709}
2018-03-02 21:12:57 +00:00
Clemens Hammacher
cdf0c2e801 Account for different interpretations of "trivially copyable"
Unfortunately, different runtime libraries and/or compilers differ on
whether a class without any copy constructor, move constructor, copy
assignment and move assignment operator is considered trivially
copyable.
See discussion on https://crrev.com/c/941521.

This CL adds a comment about this, and deletes a test for this specific
case.

R=mstarzinger@chromium.org
CC=jyan@ca.ibm.com, ivica.bogosavljevic@mips.com

Change-Id: Ie07adda370e5e955b782e72356b50121477d4623
Reviewed-on: https://chromium-review.googlesource.com/944081
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51704}
2018-03-02 15:45:14 +00:00
Sigurd Schneider
2daca1c6a8 Reland "[turbofan] Preserve order of compares in switches"
This is a reland of b8bc26d099

Original change's description:
> [turbofan] Preserve order of compares in switches
> 
> This CL makes sure that control flow optimization does
> not change the order of switches that ultimately get
> lowered to a series of comparisons anyway.
> 
> Bug: v8:7326
> Change-Id: If004de6b71a7e9504d37754c847ca108a64e49db
> Reviewed-on: https://chromium-review.googlesource.com/941952
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#51679}

Bug: v8:7326
Change-Id: Ifbe61dece499c98bbd49fa3ae9b99ccf4e955ddc
Reviewed-on: https://chromium-review.googlesource.com/945770
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51691}
2018-03-02 12:03:42 +00:00
Gabriel Charette
70222a9d03 [v8 platform] Rename BackgroundThread methods to WorkerThreads method.
Follow-up to https://chromium-review.googlesource.com/c/v8/v8/+/941442.

"background" refers to a priority and is inappropriate to refer to
worker threads as many tasks posted to worker threads by v8 are in
fact high priority.

Also took advantage of this rename to make NumberOfWorkerThreads()
return an int instead of size_t. While it is never negative, int is
simpler and Google C++ style guide states to avoid unsigned integers in
such cases (ref. "On Unsigned Integers" @
https://google.github.io/styleguide/cppguide.html#Integer_Types).

The Chromium embedder for that call provided an int which was converted
to size_t for this override and most often casted back down to int on the
v8 side, adding churn, and readability overhead.

R=ahaas@chromium.org

Bug: v8:7310
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ib5280df73d2846b111d985be65a10b049995ea6a
Reviewed-on: https://chromium-review.googlesource.com/941944
Commit-Queue: Gabriel Charette <gab@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51662}
2018-03-01 15:30:35 +00:00
Clemens Hammacher
9dd6f0d089 Fix is_trivially_copyable check for MSVC and older stdlibc++
MSVC 2015 and 2017 implement std::is_trivially_copyable, but not
correctly. Hence, reimplement it using more low-level primitives.

For stdlibc++ versions below 5.0, we already have a workaround for the
missing support of std::is_trivially_copyable, but this is an unsound
approximation, because it is ignoring move constructor, move assignment
and copy assignment. Therefore, do not use this approximation for
asserting trivial copyability of a type.

Finally, add unittests for the new is_trivially_copyable
implementations.

R=mstarzinger@chromium.org
CC=loorongjie@gmail.com

Change-Id: I9ee56a65882e8c94b72c9a2d484edd27963a5d89
Reviewed-on: https://chromium-review.googlesource.com/941521
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51651}
2018-03-01 13:05:12 +00:00
Gabriel Charette
86b4b5345a [v8 platform] Get rid of unused ExpectedRuntime parameter.
With a temporary intermediate step to allow adapting embedders before
getting rid of the ExpectedRuntime method altogether.

The method is being renamed to CallOnWorkerThread() as an effort to
go away from "background" nomenclature for worker threads ("background"
usually refers to a priority but worker threads are commonly used for
high priority tasks in v8).
Other CLs will follow to rename other "background" APIs.

Bug: v8:7310
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I2fd4eac7458708d4eacb0f4871c982a567a3865e
Reviewed-on: https://chromium-review.googlesource.com/941442
Commit-Queue: Gabriel Charette <gab@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51645}
2018-03-01 10:35:42 +00:00
Kim-Anh Tran
1516520832 [wasm] Introduce Tier enum to replace the current is_liftoff flag
Bug: v8:7310
Change-Id: I87bdb640a3c006a268974b34808f184307badeb2
Reviewed-on: https://chromium-review.googlesource.com/934243
Commit-Queue: Kim-Anh Tran <kimanh@google.com>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51644}
2018-03-01 08:56:00 +00:00
Nico Weber
58b386c4de Make v8 build with -Wmicrosoft-cast under clang-cl.
gcc and clang (and the standard) don't allow implicit conversion of
function pointers to object pointers. MSVC does allow that, and since
system headers require this to work, clang-cl allows it too -- but
it emits a -Wmicrosoft-cast warning (which we currently suppress in
the Chromium build, but which we want to enable.)

As a side effect, when printing a function pointer to a stream, MSVC
(and clang-cl) will pick the operator<<(void*) overload, while gcc
and clang will pick operator<<(bool) since the best allowed conversion
they find is from function pointer to bool.

To prevent the clang-cl warning, we need to make sure that we never
directly print a function pointer to a stream. In v8, this requires
two changes:

1. Give PrintCheckOperand() an explicit specialization for function
   pointers and explicitly cast to void* there.  This ports
   https://codereview.chromium.org/2515283002/ to V8, and also fixes a
   bug on non-Windows where DCHECK() of function pointers would print
   "(1 vs 1)" instead of the function's addresses.
   (The bug remains with member function pointers,
   where it's not clear what to print instead of the 1.)

2. has_output_operator<T> must not use operator<< on its argument
   in an evaluated context if T is a function pointer.  This patch
   modifies has_output_operator<> to use an unevaluated context instead,
   which is simpler than the current approach (and matches what Chromium's
   base does), but changes behavior    in minor (boring) ways
   (see template-utils-unittest.cc), since operator<<() is now
   called with a temporary and only operator<<() implementations callable
   with a temporary are considered.
   A more complicated but behavior-preserving alternative would be to
   add an explicit specialization for function pointers. You can see
   this variant in patch set 1 on gerrit.

Bug: chromium:550065
Change-Id: Idc2854d6c258b7fc0b959604006d8952a79eca3d
Reviewed-on: https://chromium-review.googlesource.com/940004
Commit-Queue: Nico Weber <thakis@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51636}
2018-02-28 18:06:57 +00:00
Michael Starzinger
fafd1cdd35 Move exception handler table into instruction stream.
This changes the encoding of the {HandlerTable} from an array of Smi
values to a byte array. It allows embedding of said array into the
instruction stream of {Code} objects (similar to how safepoint tables
work). For interpreted bytecode the table is attached as a {ByteArray}
to the bytecode.

The advantage of this approach is a more compact encoding and also the
ability to move such tables easily off the GC'ed heap if needed (as is
done for WebAssembly code for example).

R=jarin@chromium.org

Change-Id: I3320415dff69b3d1053825bda0d667a28232bf6d
Reviewed-on: https://chromium-review.googlesource.com/934642
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51589}
2018-02-27 10:20:35 +00:00
Jakob Kummerow
ef2aba3325 [test][cleanup] Clean up value-serializer-unittest.cc
Refactor the helpers to use return values instead of continuation functors.
This reduces compilation time in Release mode from 30s to 10s (Debug: 10->7s).
Also shorten the boilerplate code a bit.

Bug: v8:7310
Change-Id: Icf6309e4fd5478a1f55979112d1219bc7eaf4e6d
Reviewed-on: https://chromium-review.googlesource.com/938316
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51584}
2018-02-27 02:05:55 +00:00
Michael Achenbach
ac790b1132 [test] Skip flaky test on windows
NOTRY=true

Bug: v8:7492
Change-Id: Ie25281f8efa30d14574c7b53b4ab8a22d1344535
Reviewed-on: https://chromium-review.googlesource.com/934847
Reviewed-by: Fadi Meawad <fmeawad@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51531}
2018-02-23 18:45:28 +00:00
Sigurd Schneider
0165432e20 [cleanup] Rename Word to Int32/IntPtr depending on context
Bug: v8:7310
Change-Id: I3b9832c7090d5c4b2f425f85095b0d7bae29fbfd
Reviewed-on: https://chromium-review.googlesource.com/934321
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51519}
2018-02-23 14:34:07 +00:00
Marja Hölttä
f8569ff38a [data structures] Fix ZoneChunkList some more.
Currently, pop_back() doesn't update size. Fix that.

BUG=v8:7489

Change-Id: If11d2ddcaae3223289c168c1e6e1ad94d6775516
Reviewed-on: https://chromium-review.googlesource.com/934456
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51517}
2018-02-23 14:20:07 +00:00
Sigurd Schneider
53e00e3900 Reland "[turbofan] Move String.* functions to JSCallReducer"
This is a reland of 3ff4b44735.

Original version did not handle V8_INTL_SUPPORT.

Original change's description:
> [turbofan] Move String.* functions to JSCallReducer
>
> Bug: v8:7250, v8:7340
> Change-Id: Ibb8d5badf89c66bd9bcb6bb390256ae81d0e899c
> Reviewed-on: https://chromium-review.googlesource.com/913208
> Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#51505}

Bug: v8:7250, v8:7340
Change-Id: Id908cbcfaa9e9cf5459d6d3289e6ec00e387d287
Reviewed-on: https://chromium-review.googlesource.com/934268
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51514}
2018-02-23 13:43:28 +00:00
Marja Hölttä
4be3f416e6 [data structures] Fix ZoneChunkList end iterator.
BUG=v8:7478

Change-Id: Iad67d49729dfeb89fde26772689a22098f491b8a
Reviewed-on: https://chromium-review.googlesource.com/931548
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51510}
2018-02-23 13:08:13 +00:00
Sigurd Schneider
0ef07c95f4 Revert "[turbofan] Move String.* functions to JSCallReducer"
This reverts commit 3ff4b44735.

Reason for revert: Does not handle V8_INTL_SUPPORT correctly

Original change's description:
> [turbofan] Move String.* functions to JSCallReducer
> 
> Bug: v8:7250, v8:7340
> Change-Id: Ibb8d5badf89c66bd9bcb6bb390256ae81d0e899c
> Reviewed-on: https://chromium-review.googlesource.com/913208
> Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#51505}

TBR=sigurds@chromium.org,bmeurer@chromium.org

Change-Id: I6efb3b758b0fcadc012a90c4175de3c1ebccee95
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7250, v8:7340
Reviewed-on: https://chromium-review.googlesource.com/934267
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51507}
2018-02-23 12:41:04 +00:00
Sigurd Schneider
3ff4b44735 [turbofan] Move String.* functions to JSCallReducer
Bug: v8:7250, v8:7340
Change-Id: Ibb8d5badf89c66bd9bcb6bb390256ae81d0e899c
Reviewed-on: https://chromium-review.googlesource.com/913208
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51505}
2018-02-23 12:22:13 +00:00
Sigurd Schneider
6be614fb2d Reland "[turbofan] Disable speculation for JSCall nodes by default"
This is a reland of ccbbdb93a1.

Original change's description:
> [turbofan] Disable speculation for JSCall nodes by default
>
> Change-Id: I7360601f4e1b419cf8d35480b068418bdd700be9
> Reviewed-on: https://chromium-review.googlesource.com/928649
> Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#51467}

Bug: v8:7340

Change-Id: I5557afcdad0c7f9610a396dcfa45f8985a13c1ba
Reviewed-on: https://chromium-review.googlesource.com/931546
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51496}
2018-02-23 08:31:41 +00:00
Benedikt Meurer
aff1f3788b [cleanup] Introduce a dedicated FeedbackCell.
This is preparatory cleanup work for eventually tracking the functions
(rather than concrete closures) in the CALL_IC, also for builtins like
the default PromiseCapability [[Resolve]] and [[Reject]] functions. It
adds a new FeedbackCell type, which is used by JSFunctions consistently
now to reference the feedback vector (or undefined if not the function
is not compiled yet or is a native/asm.js function).

This also changes the calling convention for FastNewClosure builtin and
the JSCreateClosure operator in TurboFan to carry the FeedbackCell here
instead of the parent FeedbackVector and the slot index. In addition we
eliminate the now unused %InterpreterNewClosure runtime function.

Bug: v8:2206, v8:7253, v8:7310
Change-Id: Ib4ce456e276e0273e57c163dcdd0b33abf863656
Reviewed-on: https://chromium-review.googlesource.com/928403
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51474}
2018-02-22 13:18:48 +00:00
Benedikt Meurer
aa7ccc233c Revert "[turbofan] Disable speculation for JSCall nodes by default"
This reverts commit ccbbdb93a1.

Reason for revert: https://logs.chromium.org/v/?s=chromium%2Fbb%2Fclient.v8%2FV8_Linux%2F23316%2F%2B%2Frecipes%2Fsteps%2FBisect_50a6e301%2F0%2Fsteps%2FRetry_-_nosse3%2F0%2Flogs%2FJSCallReducerTest.Mat..%2F0

Original change's description:
> [turbofan] Disable speculation for JSCall nodes by default
> 
> Change-Id: I7360601f4e1b419cf8d35480b068418bdd700be9
> Reviewed-on: https://chromium-review.googlesource.com/928649
> Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#51467}

TBR=sigurds@chromium.org,bmeurer@chromium.org

Change-Id: I5a1988902730be9e962b17a434251db82d834b98
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/931401
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51471}
2018-02-22 12:33:18 +00:00
Sigurd Schneider
50a6e301a2 [turbofan] Don't insert {Int32Constant}s in JSCallReducer
Bug: chromium:814336, v8:7250, v8:7340
Change-Id: I9345778cabf24f1278ca7364ef7e223038c5aeee
Reviewed-on: https://chromium-review.googlesource.com/929121
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51468}
2018-02-22 11:35:20 +00:00
Sigurd Schneider
ccbbdb93a1 [turbofan] Disable speculation for JSCall nodes by default
Change-Id: I7360601f4e1b419cf8d35480b068418bdd700be9
Reviewed-on: https://chromium-review.googlesource.com/928649
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51467}
2018-02-22 11:33:15 +00:00
Sigurd Schneider
fb0144f6f9 [turbofan] Move Math.* builtins to JSCallReducer
This CL also adds speculation to all Math builtins,
and refactors the JSCallReducer.

Bug: v8:7250, v8:7240
Change-Id: Icdaddb767e875bb191939d907f65c7a8dcf79b8b
Reviewed-on: https://chromium-review.googlesource.com/873916
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51426}
2018-02-21 12:21:20 +00:00
Justin Ridgewell
f6b6f71ba2 Consolidate UTF-8 Vector<char> to uc16 decoding into Iterator
Too many files know how to deal with decoding, counting, and splitting UTF-8
into uc16 chars. This consolidates several callers who deal with full
(Vector<char>, not streaming) bytes by using a UTF-8 Iterator to decode bytes
into individual uc16 chars.

R=marja@chromium.org

Bug: 
Change-Id: Ia36df3e8c1abd0398415ad23a474557c71c19a01
Reviewed-on: https://chromium-review.googlesource.com/831093
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Justin Ridgewell <jridgewell@google.com>
Cr-Commit-Position: refs/heads/master@{#51405}
2018-02-20 20:04:41 +00:00
Peter Marshall
46c199a5c7 [turbofan] Inline promise constructor in turbofan.
Inline the promise constructor when we have one argument and target
matches new_target.

This is not complete, and is sitting behind an experimental flag for
now. We need to fix deoptimization by providing proper frame states.

Create a unittest class for JSCallReducer - just assert whether there
was a change or not, rather than specify the exact graph that should be
produced.

Bug: v8:7253
Change-Id: Ib6886a8feb2799f47cd647853cabcf12a189bc25
Reviewed-on: https://chromium-review.googlesource.com/919282
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51389}
2018-02-20 09:01:51 +00:00
Sigurd Schneider
e1ca671e45 [debug] Ensure breaking on inlined builtins works
This ensures that breaking on inlined builtins works, even when
compiling concurrently. This CL also introduces the member
Isolate::AbortConcurrentOptimization.

R=sigurds@chromium.org

Bug: v8:178
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ie6cbb48ebde18036888af2dd715862e7a14ddf9d
Reviewed-on: https://chromium-review.googlesource.com/912468
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51384}
2018-02-20 07:52:51 +00:00
Jakob Kummerow
bd0b32f545 Reland "[bigint] Add BigInt64Array, BigUint64Array"
This is a reland of dda0419ecd.

Originally reviewed-on: https://chromium-review.googlesource.com/914513
and landed as refs/heads/master@{#51342}.

Bug: v8:6791
Change-Id: I3b3a069da7a0e64c38a81b3110dc5ece4887cb19
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/924665
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51352}
2018-02-19 10:23:18 +00:00
Michael Achenbach
cb7a15fede Revert "[bigint] Add BigInt64Array, BigUint64Array"
This reverts commit dda0419ecd.

Reason for revert: msvc unhappy:
https://build.chromium.org/p/client.v8/builders/V8%20Win64%20-%20msvc/builds/1434

Original change's description:
> [bigint] Add BigInt64Array, BigUint64Array
> 
> Bug: v8:6791
> Tbr: hpayer@chromium.org
> Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
> Change-Id: I637e9084d2fe4869ad0be2fb996149ab9940f346
> Reviewed-on: https://chromium-review.googlesource.com/914513
> Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#51342}

TBR=jkummerow@chromium.org,neis@chromium.org,hpayer@chromium.org

Change-Id: I49237fa323f0d3ea70e744d92d5cbdd4d5c4b39f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6791
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/924663
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51344}
2018-02-17 06:01:31 +00:00
Jakob Kummerow
dda0419ecd [bigint] Add BigInt64Array, BigUint64Array
Bug: v8:6791
Tbr: hpayer@chromium.org
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I637e9084d2fe4869ad0be2fb996149ab9940f346
Reviewed-on: https://chromium-review.googlesource.com/914513
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51342}
2018-02-17 04:52:29 +00:00
Bill Budge
95e39b0623 [API] Don't use VM methods of v8::ArrayBuffer::Allocator.
- Replaces calls to Allocator Reserve, Free, and SetPermissions
  with equivalent page allocator calls (allocation.h).
- Un-implements these methods to catch usage, in preparation for
  removing these.

Bug: chromium:799573
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Id233b7a9cfc8e332c64e514f6359e8b670c2d75e
Reviewed-on: https://chromium-review.googlesource.com/911883
Commit-Queue: Bill Budge <bbudge@chromium.org>
Reviewed-by: Eric Holk <eholk@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51340}
2018-02-16 22:51:17 +00:00
Bill Budge
018f119223 [memory] Add a test for RX page permission.
Bug: chromium:799573
Change-Id: I467c74b5b26bc6f1e1a35c1104df12b77f072bac
Reviewed-on: https://chromium-review.googlesource.com/923430
Reviewed-by: Eric Holk <eholk@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51338}
2018-02-16 21:52:44 +00:00
Jakob Kummerow
8ac70e8663 Work on -Wimplicit-fallthrough for v8
This doesn't enable the warning yet, but adds V8_FALLTHROUGH annotations
in enough places so that v8 can build with the warning on on my linux box.

Found one real bug
(in effect-control-linearizer.cc,
https://chromium-review.googlesource.com/c/v8/v8/+/850392/3/src/compiler/effect-control-linearizer.cc#825
).

Bug: chromium:812686
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I3542550b9c24b545641d0f0fc43f28f2780b0ab3
Reviewed-on: https://chromium-review.googlesource.com/911731
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51322}
2018-02-16 13:32:25 +00:00
Adam Klein
5aad943dfe Remove mtrofin and rossberg from OWNERS
Tbr: jarin@chromium.org
Change-Id: I17477e2c82398b228a366a3d1fd8eb521dd51eae
Reviewed-on: https://chromium-review.googlesource.com/922270
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Brad Nelson <bradnelson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51317}
2018-02-15 23:48:43 +00:00
Toon Verwaest
313e33a709 Remove %_ClassOf and SharedFunctionInfo::instance_class_name
instance_class_name takes up space unnecessarily, and %_ClassOf and
class_name implement [[Class]] which isn't part of ES2015+ anymore.

Bug: 
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I3a73f732ad83a616817fde9992f4e4d584638fa8
Reviewed-on: https://chromium-review.googlesource.com/776683
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51309}
2018-02-15 11:52:08 +00:00
Caitlin Potter
d3ca0d0050 [esnext] implement spec change to TaggedTemplate callsite caching
Implements the change outlined in https://github.com/tc39/ecma262/pull/890,
which has been ratified and pulled into the specification. In particular,
template callsite objects are no longer kept in a global, eternal Map, but
are instead associated with their callsite, which can be collected. This
prevents a memory leak incurred by TaggedTemplate calls.

Changes, summarized:

    - Remove the TemplateMap and TemplateMapShape objects, instead caching
      template objects in the feedback vector.
    - Remove the `hash` member of TemplateObjectDescriptor, and the Equals
      method (used by TemplateMap)
    - Add a new FeedbackSlotKind (kTemplateObject), which behaves similarly
      to FeedbackSlotKind::kLiteral, but prevents eval caching. This ensures
      that a new feedback vector is always created for eval() containing tagged
      templates, even when the CompilationCache is used.
    - GetTemplateObject bytecode now takes a feedback index, and only calls
      into the runtime if the feedback is Smi::kZero (uninitialized).

BUG=v8:3230, v8:2891
R=littledan@chromium.org, yangguo@chromium.org, bmeurer@chromium.org,
rmcilroy@chromium.org

Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I7827bc148d3d93e2b056ebf63dd624da196ad423
Reviewed-on: https://chromium-review.googlesource.com/624564
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51248}
2018-02-12 17:06:18 +00:00
Junliang Yan
ae0447fa48 [test] Allow two timing output to be the same
some time the output of these two could be the same
if machine is fast enough.

Change-Id: I1d9c0191657abae3d053517d45059065df2d44dc
Reviewed-on: https://chromium-review.googlesource.com/911873
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#51247}
2018-02-12 16:37:46 +00:00
Ross McIlroy
a021b6c42d [Ignition] [TurboFan] Generate speculation poison in code generator.
Moves generation of speculation poison to be based on the PC target vs the
actual PC being executed. The speculation poison is generated in the prologue
of the generated code if CompilationInfo::kGenerateSpeculationPoison is set.
The result is stored in a known register, which can then be read using the
SpeculationPoison machine node.

Currently we need to ensure the SpeculationPoison node is scheduled right after
the code prologue so that the poison register doesn't get clobbered. This is
currently not verified, however it's only use is in RawMachineAssembler where
it is manually scheduled early.

The Ignition bytecode handlers are updated to use this speculation poison
rather than one generated by comparing the target bytecode.

BUG=chromium:798964

Change-Id: I2a3d0cfc694e88d7a8fe893282bd5082f693d5e2
Reviewed-on: https://chromium-review.googlesource.com/893160
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51229}
2018-02-12 09:26:58 +00:00
Ben L. Titzer
855cb90db7 Normalize names of call descriptor local variables
This is a purely cosmetic change. Rename all local variables and
parameters of type CallDescriptor* to "call_descriptor".
For locals that are now named "call_descriptor", use auto upon
initialization, following the Google style guide
(https://google.github.io/styleguide/cppguide.html#auto).

Note: fields in structs and classes were not renamed in this CL.

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

Change-Id: Ic6f7afdba12f7b97741b098a9d0e0f58c41c587e
Reviewed-on: https://chromium-review.googlesource.com/909866
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51223}
2018-02-09 22:09:07 +00:00
Ivica Bogosavljevic
488737d99f [MIPS] Add Sreten Kovacevic as owner of MIPS files
Change-Id: I9cc0cc5ffe9175132634bea87cfc24cc5439e592
Reviewed-on: https://chromium-review.googlesource.com/911389
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Ivica Bogosavljevic <ivica.bogosavljevic@mips.com>
Commit-Queue: Ivica Bogosavljevic <ivica.bogosavljevic@mips.com>
Cr-Commit-Position: refs/heads/master@{#51216}
2018-02-09 15:35:49 +00:00
Gabriel Charette
85b8daed63 Add V8.GC.ParallelTaskLatencyMicroSeconds metric.
It will record the time-to-schedule-after-job-start for different
task types to try to highlight use cases where contention might
be a problem (and show improvements to it later).

Also introducing AsyncTimedHistogram to support this use case whose
reported timings go beyond a single scope (i.e. the async version of
ScopedTimedHistogram).

Bug: chromium:807606
Change-Id: Ib4d581fa8b001723dfe8c91102280e9608b4fabb
Reviewed-on: https://chromium-review.googlesource.com/899365
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Gabriel Charette <gab@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51131}
2018-02-06 21:53:49 +00:00
Gabriel Charette
db73d446b9 Bring Time(Delta)::Min/Max() and related helpers to V8.
Copied as-is modulo compile tweaks from Chromium's base.

Copied tests highlighting existing overflow issues with V8's impl...

TimeDelta::Max() will initially be used in V8 to flag events that
never triggered in a TimedHistogram.

Also constexpr'ed a few things while I was in there, it's harmless
at worst and helps a little at best.
Ideally would constexpr all the Time*::From*() methods like in
Chromium but that has inlining implications and I don't know the
impact that could have on V8.

Bug: chromium:807606
Change-Id: If5aa92759d985be070e12af4dd20f0159169048b
Reviewed-on: https://chromium-review.googlesource.com/899342
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Gabriel Charette <gab@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51073}
2018-02-02 15:38:55 +00:00
Bill Budge
a1fc3c7b14 [memory] Make sure parameters are properly aligned in AllocatePages.
- Adds a DCHECK to AllocatePages to enforce hint address alignment.
- Adds a DCHECK to AllocatePages to make length a multiple of allocation
  granularity.
- Properly aligns the hint address in MemoryAllocator::AllocateChunk
  to MemoryChunk::kAlignment.

This is to conform more closely to Chromium's page allocator API.

Bug:chromium:756050

Change-Id: Ib991fa80609834107829a9559f4b5b6b0996fc72
Reviewed-on: https://chromium-review.googlesource.com/898095
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51065}
2018-02-02 13:54:28 +00:00
Michal Majewski
2fe1af4787 [test] Remove dead code from suites and tests
Bug: v8:6917
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I6bfea537347fb236d41b31f0c6c64c108928bf28
Reviewed-on: https://chromium-review.googlesource.com/897784
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michał Majewski <majeski@google.com>
Cr-Commit-Position: refs/heads/master@{#51033}
2018-02-01 14:12:49 +00:00
Peter Marshall
8622d899d8 [turbofan] Eliminate switch operations with constant input.
Where the value we are switching on is a constant, we can just look
through each IfValue case and replace the switch and go straight to
the appropriate case. If no case matches, expect and go to the
IfDefault.

For the (unrealistic) example in the linked bug, this improves
performance ~1.5x.

Bug: v8:7389
Change-Id: I7ffe209bda9ed22571ea106396b18e0bcf9a1e22
Reviewed-on: https://chromium-review.googlesource.com/893141
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51029}
2018-02-01 13:23:52 +00:00
Gabriel Charette
954146a5cf Make TimeTicks::Now() high-resolution whenever possible with low-latency.
It was already always high-resolution on POSIX but was never high
resolution on Windows. Windows does support low latency high-resolution
timers for the majority of our user base.

TimeTicks::HighResolutionNow() was only explicitly requested in testing
frameworks. As such I left the call in place but made it DCHECK that
it's running on a Windows machine on which high-resolution clocks are
used. This confirms that none of our test fleet has regressed with this
change (the previous HighResolutionNow() used to be slightly more
aggressive and also do it in a few configurations where we now fallback
to low-resolution now).

This implementation was copied as-is (modulo minor v8 API
compatibility tweaks). These implementations were the same in the
past but had diverged when, sadly, the same bug was fixed separately
years apart, in Chromium and V8:
chromium: https://codereview.chromium.org/1284053004 + https://codereview.chromium.org/2393953003
v8: https://codereview.chromium.org/1304873011

This is a prerequisite to add metrics around parallel task execution
(low-resolution clocks are useless at that level, but we also don't want
to incur high-latency clocks on machines that can't afford it cheaply).

Bug: chromium:807606
Change-Id: Id18e7be895d8431ebd0e565a1bdf358fe7838489
Reviewed-on: https://chromium-review.googlesource.com/897485
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Gabriel Charette <gab@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51027}
2018-02-01 11:55:42 +00:00
Michal Majewski
804cc9f385 [test] Remove context usage from test processors
Bug: v8:6917
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: Id5a7b41502dfd4be43496b1edb958522a8eb0c31
Reviewed-on: https://chromium-review.googlesource.com/895588
Commit-Queue: Michał Majewski <majeski@google.com>
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51023}
2018-02-01 10:35:02 +00:00
Gabriel Charette
18c1942371 Do not block in non-main thread tasks in ItemParallelJobTests.
Otherwise bots with a low number of cores will hang trying to schedule
a mere 4 tasks.
This change allowing scheduling of an arbitrary number of test tasks,
the count was also augmented to better stress test the system.

Bug: chromium:805932
Change-Id: Ia10cd583c0675c256b4fd5d2765b50855d77a7f9
Reviewed-on: https://chromium-review.googlesource.com/895584
Commit-Queue: Gabriel Charette <gab@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51019}
2018-02-01 09:09:29 +00:00
Tobias Tebbi
2778b46081 Reland "[turbofan] disable indirect jumps in Turbofan generated switches"
This is a reland of 957ac3641c.

To avoid a race condition TSAN found when accessing FLAG_turbo_disable_switch_jump_table
in the InstructionSelector, this now threads the flag through the CompilationInfo.

Original change's description:
> [turbofan] disable indirect jumps in Turbofan generated switches
>
> Bug:
> Change-Id: I326bf518f895e7c030376210e7797f3dd4a9ae1f
> Reviewed-on: https://chromium-review.googlesource.com/873643
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#50984}

Change-Id: I76c2804f140cc116e30881bfd05365a09240e605
Reviewed-on: https://chromium-review.googlesource.com/895643
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51014}
2018-02-01 08:03:04 +00:00
Michal Majewski
d3083b46ee [test] Move options to test config
Bug: v8:6917
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I254d2e545709029346f585b02a9edf91d3f27893
Reviewed-on: https://chromium-review.googlesource.com/893321
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michał Majewski <majeski@google.com>
Cr-Commit-Position: refs/heads/master@{#50996}
2018-01-31 13:46:29 +00:00