- 09 Jul, 2019 21 commits
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Santiago Aboy Solanes authored
Decompressing with Any just chooses one of the decompressions (Signed or Pointer). Since we already know which decompression it is going to choose, we save ourselves a whole bunch of instructions by just skipping that. 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: v8:7703 Change-Id: I0173931536e7ba83fa3572ceb50b176409f0b6c5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1691916Reviewed-by:
Sigurd Schneider <sigurds@chromium.org> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org> Cr-Commit-Position: refs/heads/master@{#62602}
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Ana Pesko authored
This CL changes the use of a ZoneList for keeping track of named captures in a regular expression to a ZoneMap, to optimize finding the named capture in the structure. Bug: v8:9423 Change-Id: Id952ac8f86c1dc5d69a3b0251ff724d1509879dc Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1687413 Commit-Queue: Ana Pesko <anapesko@google.com> Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Peter Marshall <petermarshall@chromium.org> Cr-Commit-Position: refs/heads/master@{#62601}
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Jakob Kummerow authored
Change-Id: Ide762b9af9bd23d376025e9b3e6f5ccab7b0f1a5 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1691026Reviewed-by:
Andreas Haas <ahaas@chromium.org> Commit-Queue: Jakob Kummerow <jkummerow@chromium.org> Cr-Commit-Position: refs/heads/master@{#62600}
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Andreas Haas authored
R=mstarzinger@chromium.org Bug: v8:7581 Change-Id: I958c622387e2e3520fae051ae893623238393550 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1691021 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#62599}
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Nico Hartmann authored
TypeCheckKind may be propagated only by operators that can potentially deopt and sit in the effect chain. This CL introduces a DCHECK to detect that it is not set for other operators. Change-Id: I002c7c36ab2d2612a41a2f280927cb85c112b9b4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1691912 Commit-Queue: Nico Hartmann <nicohartmann@google.com> Reviewed-by:
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Igor Sheludko authored
Tbr: verwaest@chromium.org Bug: v8:9353 Change-Id: I8164e2235ca43e203410277b86e6f166010c11d6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1687673Reviewed-by:
Leszek Swirski <leszeks@chromium.org> Commit-Queue: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#62597}
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Andreas Haas authored
R=clemensh@chromium.org Bug: v8:7581 Change-Id: I6fd538f2e90bf5a4addcfe7d8f4b427850ac6fca Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690960 Commit-Queue: Andreas Haas <ahaas@chromium.org> Reviewed-by:
Clemens Hammacher <clemensh@chromium.org> Cr-Commit-Position: refs/heads/master@{#62596}
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Tamer Tas authored
This reverts commit 1db33e5f. Reason for revert: {AttributeError} 'Namespace' object has no attribute 'experimental' Original change's description: > [browser-stories] gate features behind {experimental} flag > > Performance infra recipes use callstats.py to run web page replays. Split (v8, > infa, perf-infra) repositories make experimenting with callstats.py hard. > > This CL creates feature gating for simplifying performance infra experiments. > > R=ulan@chromium.org > > No-Try: true > Bug: v8:9448 > Change-Id: I2c3e139f4b9d6bce1ea4fdda1a44960d74d7d414 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690950 > Auto-Submit: Tamer Tas <tmrts@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Commit-Queue: Tamer Tas <tmrts@chromium.org> > Cr-Commit-Position: refs/heads/master@{#62565} TBR=ulan@chromium.org,tmrts@chromium.org Change-Id: If40be01a2edebf0538ad306fa5ded0dfa2aaf147 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9448 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1692922Reviewed-by:
Tamer Tas <tmrts@chromium.org> Commit-Queue: Tamer Tas <tmrts@chromium.org> Cr-Commit-Position: refs/heads/master@{#62595}
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Clemens Hammacher authored
Instead of having hard to read reinterpret_casts all over the place, extract this to separate methods. R=mstarzinger@chromium.org Bug: v8:9396 Change-Id: Id8d47b5dda8f5b32dedfe9f76c4f526ffcff0674 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1691024Reviewed-by:
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Mike Stanton authored
... for concurrent graph building. This is a reland of jarin@chromium.org's CL https://chromium-review.googlesource.com/c/v8/v8/+/1682027 with support to access the source positions through a handle when running without concurrent inlining, because the positions may move due to GC allocation. Bug: v8:7790 Change-Id: I1b2cc84c8cb801cb82f1a527fce736c74c156c1d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1683726Reviewed-by:
Georg Neis <neis@chromium.org> Reviewed-by:
Maya Lekova <mslekova@chromium.org> Commit-Queue: Michael Stanton <mvstanton@chromium.org> Cr-Commit-Position: refs/heads/master@{#62593}
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Clemens Hammacher authored
R=jgruber@chromium.org Bug: v8:9429, v8:9396 Change-Id: I0e51e8478d7232bc51bed26bc26560c6e6450366 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690946Reviewed-by:
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Jakob Gruber authored
The name dictionary allocated to store named captures on the regexp result object could be too large for regular heap spaces and ConstructNewResultFromMatchInfo must thus also handle the large object case. Bug: chromium:980891 Change-Id: Ia1dbecd0a9d9d6b39f80e77680386c385d95c97c Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1691907Reviewed-by:
Tobias Tebbi <tebbi@chromium.org> Commit-Queue: Tobias Tebbi <tebbi@chromium.org> Auto-Submit: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#62591}
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Mike Stanton authored
In the rare case that a tagged template is not initialized before optimization time, we currently cache this created template in the feedback vector. If we stop doing this, we simplify the interface usefully for concurrent compilation and pay little for it. Bug: v8:7790 Change-Id: Ifc82b0eb931a706767596febd4f4b312e167fd25 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690837 Commit-Queue: Michael Stanton <mvstanton@chromium.org> Reviewed-by:
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Yutaka Hirano authored
This reverts commit 85bc4ef6. Reason for revert: The tag 'e' conflicts with a blink serialization tag: kFileIndexTag. Original change's description: > Serialize native errors > > Make native errors serializable. > > The implementation is mostly straightforward, but there is one > exception: the stack property. Although the property is not specified, > the spec for error cloning asks us to preserve the property if > possible. This implementation serializes the property only when it is > a string, and otherwise ignores it. > > Spec: https://github.com/whatwg/html/pull/4665 > Intent-to-Ship: <TBD> > > Bug: chromium:970079 > Change-Id: I7f36b8b4fc5dff22d726d849ccfb9748d0888365 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1649257 > Commit-Queue: Yutaka Hirano <yhirano@chromium.org> > Reviewed-by: Simon Zünd <szuend@chromium.org> > Cr-Commit-Position: refs/heads/master@{#62584} TBR=jbroman@chromium.org,yhirano@chromium.org,adamk@chromium.org,domenic@chromium.org,szuend@chromium.org Change-Id: Ia0cc902eaa1419cdb0cfec377d8a40fa914612c9 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: chromium:970079 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1692365 Commit-Queue: Simon Zünd <szuend@chromium.org> Reviewed-by:
Simon Zünd <szuend@chromium.org> Cr-Commit-Position: refs/heads/master@{#62589}
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Ulan Degenbaev authored
This replaces non-const reference arguments by pointers. Bug: v8:9429 Change-Id: I5e5d94b020dedf3005f8d74202d31e3a50bdf754 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690943Reviewed-by:
Dominik Inführ <dinfuehr@chromium.org> Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#62588}
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Patrick Thier authored
EscapeRegExpPattern should return a string representation of a RegExp instance that in turn can be used to construct a new RegExp instance with the same internal state as the original one. Previous versions incorrectly escaped '/' also inside character classes (e.g. /[/]/ returned "[\/]"). This patch properly escapes '/' when necessary and omits unnecessary escapes. Bug: v8:8615, v8:1982, v8:9446 Change-Id: I4ecb993dc69d6976f4637cedf43465cd0c32e427 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1688050 Commit-Queue: Patrick Thier <pthier@google.com> Reviewed-by:
Mathias Bynens <mathias@chromium.org> Reviewed-by:
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Georg Neis authored
A few changes have been made to this feature and disabling it lets us best see its current performance impact. Bug: v8:9088 Change-Id: I54d5e09f3fcece215e29d66d5bdb3f19ba07bda0 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690954Reviewed-by:
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Ng Zhi An authored
Bug: v8:8460 Change-Id: I837b7dc3f575d69ccbf2cd76332c0bf775724675 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1684362Reviewed-by:
Deepti Gandluri <gdeepti@chromium.org> Reviewed-by:
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Yutaka Hirano authored
Make native errors serializable. The implementation is mostly straightforward, but there is one exception: the stack property. Although the property is not specified, the spec for error cloning asks us to preserve the property if possible. This implementation serializes the property only when it is a string, and otherwise ignores it. Spec: https://github.com/whatwg/html/pull/4665 Intent-to-Ship: <TBD> Bug: chromium:970079 Change-Id: I7f36b8b4fc5dff22d726d849ccfb9748d0888365 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1649257 Commit-Queue: Yutaka Hirano <yhirano@chromium.org> Reviewed-by:
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Simon Zünd authored
This CL changes non-const reference arguments to either a const reference, or pass-by-value combined with std::move. Bug: v8:9429 Change-Id: Iabace132f855462612ac31922fbd8b456d8ae20d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690827Reviewed-by:
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Daniel Clark authored
ResolveExport and Evaluate are the final unimplemented SyntheticModule methods; with this change the implementation is complete. Test-api unit tests are also provided. Bug: v8:9292 Change-Id: Ieb7643cc5b6495dd201a51f04199d2406a703e52 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1681187Reviewed-by:
Adam Klein <adamk@chromium.org> Reviewed-by:
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- 08 Jul, 2019 19 commits
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Bill Budge authored
Change-Id: Ia506f4741e6ff9f024199d1b1fa7abb7dafe2b25 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1682835 Commit-Queue: Bill Budge <bbudge@chromium.org> Reviewed-by:
Ben Smith <binji@chromium.org> Cr-Commit-Position: refs/heads/master@{#62581}
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Bill Budge authored
Defers some work in the non-asm.js case Change-Id: Id20863fb2af83148271408b0242d49e03be29d3b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1682213 Commit-Queue: Bill Budge <bbudge@chromium.org> Reviewed-by:
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Irina Yatsenko authored
The current integration of crash keys into v8 got the dependencies wrong: it introduced into v8 a dependency on components and base. This change will allow moving the implementation into "gin" (via Platform's abstraction), which is ok to depend on components and base, while providing the default noop implementation for the embedders that don't care to collect crash keys. Gin's side: https://chromium-review.googlesource.com/c/chromium/src/+/1690003. Bug: v8:9323 Change-Id: I7b6e3e2cdc4b5f14f61ad20d2c362344d53896c6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1689834 Commit-Queue: Irina Yatsenko <irinayat@microsoft.com> Reviewed-by:
Jakob Kummerow <jkummerow@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#62579}
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Clemens Hammacher authored
This reverts commit 31cd5d83. Reason for revert: It breaks my heart to revert this, but it fails differently on several bots, e.g. https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20-%20debug/26671. Original change's description: > [arraybuffer] Rearchitect backing store ownership > > This CL completely rearchitects the ownership of array buffer backing stores, > consolidating ownership into a {BackingStore} C++ object that is tracked > throughout V8 using unique_ptr and shared_ptr where appropriate. > > Overall, lifetime management is simpler and more explicit. The numerous > ways that array buffers were initialized have been streamlined to one > Attach() method on JSArrayBuffer. The array buffer tracker in the > GC implementation now manages std::shared_ptr<BackingStore> pointers, > and the construction and destruction of the BackingStore object itself > handles the underlying page or embedder-allocated memory. > > The embedder API remains unchanged for now. We use the > v8::ArrayBuffer::Contents struct to hide an additional shared_ptr to > keep the backing store alive properly, even in the case of aliases > from live heap objects. Thus the embedder has a lower chance of making > a mistake. Long-term, we should move the embedder to a model where they > manage backing stores using shared_ptr to an opaque backing store object. > > R=mlippautz@chromium.org > BUG=v8:9380,v8:9221 > > Change-Id: I48fae5ac85dcf6172a83f252439e77e7c1a16ccd > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1584323 > Commit-Queue: Ben Titzer <titzer@chromium.org> > Reviewed-by: Ben Titzer <titzer@chromium.org> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Yang Guo <yangguo@chromium.org> > Reviewed-by: Deepti Gandluri <gdeepti@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Cr-Commit-Position: refs/heads/master@{#62572} TBR=ulan@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,titzer@chromium.org,gdeepti@chromium.org,mlippautz@chromium.org Change-Id: Ib35788ba8c31192d90cbc72df3dbc41030f109de No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9380, v8:9221 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1691034Reviewed-by:
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Santiago Aboy Solanes authored
Locally tested, octane results are the same or better when using branchful decompression in generated code. The biggest one is DeltaBlue in x64 which improves about 25%. x64's EarleyBoyer is another important one with ~10% improvement. Bug: v8:7703 Change-Id: Ie1edd6e216b307a1f5263b22472c0a64f76400fc Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690955 Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org> Reviewed-by:
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Andreas Haas authored
Update for a recent spec change: https://github.com/WebAssembly/reference-types/pull/38 R=binji@chromium.org Bug: v8:7581 Change-Id: I4ac4a4c351dfc100f978e1aead308cbed59149e4 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690832Reviewed-by:
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Ulan Degenbaev authored
This reverts commit 907f3a64. Reason for revert: speculative revert for v8:9445 I will reland if the crash is not fixed by the revert. Original change's description: > [heap] Replace ConcurrentSweepingState with a MemoryChunk local epoch counter. > > Bug: v8:9093 > Change-Id: I7c415fd0ea9e48f7ee189115f164825cb120695b > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1624213 > Commit-Queue: Hannes Payer <hpayer@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Cr-Commit-Position: refs/heads/master@{#62423} TBR=ulan@chromium.org,hpayer@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. Bug: v8:9093, v8:9445 Change-Id: Ia81a52579dc0a89f57ee41c7d0f8b1ba0f9bba81 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1691025 Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#62575}
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Maciej Goszczycki authored
This change partially decouples the heap's allocation space numbering from the snapshot space encoding. This allows encoding read-only heap allocations when RO_SPACE is removed. A few pieces of src/snapshot also get cleaner as they no longer need to check for extraneous AllocationSpace values. Bug: v8:7464 Change-Id: I984c039b0e50e233209911ac3e655eb39be2551b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690956 Commit-Queue: Maciej Goszczycki <goszczycki@google.com> Reviewed-by:
Dan Elphick <delphick@chromium.org> Cr-Commit-Position: refs/heads/master@{#62574}
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Ulan Degenbaev authored
This moves initialization of heap limits to one place: ConfigureHeap and also initializes the global limits there. Change-Id: I7ca76073680a97627a8b1da9a8310af003794a93 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1648259Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#62573}
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Ben L. Titzer authored
This CL completely rearchitects the ownership of array buffer backing stores, consolidating ownership into a {BackingStore} C++ object that is tracked throughout V8 using unique_ptr and shared_ptr where appropriate. Overall, lifetime management is simpler and more explicit. The numerous ways that array buffers were initialized have been streamlined to one Attach() method on JSArrayBuffer. The array buffer tracker in the GC implementation now manages std::shared_ptr<BackingStore> pointers, and the construction and destruction of the BackingStore object itself handles the underlying page or embedder-allocated memory. The embedder API remains unchanged for now. We use the v8::ArrayBuffer::Contents struct to hide an additional shared_ptr to keep the backing store alive properly, even in the case of aliases from live heap objects. Thus the embedder has a lower chance of making a mistake. Long-term, we should move the embedder to a model where they manage backing stores using shared_ptr to an opaque backing store object. R=mlippautz@chromium.org BUG=v8:9380,v8:9221 Change-Id: I48fae5ac85dcf6172a83f252439e77e7c1a16ccd Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1584323 Commit-Queue: Ben Titzer <titzer@chromium.org> Reviewed-by:Ben Titzer <titzer@chromium.org> Reviewed-by:
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Jakob Kummerow authored
Change-Id: I05bfc6eb98ea31b559d4195364e722ddf472afee Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1687677Reviewed-by:
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Andreas Haas authored
R=mstarzinger@chromium.org Bug: v8:7581 Change-Id: Ie5372e37acf31cd20f7914423fe4c802b5903b95 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690944Reviewed-by:
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Clemens Hammacher authored
R=ahaas@chromium.org Bug: v8:9429, v8:9396 Change-Id: Ie6119ff58fdf48612d81fe0616986a4da95135d2 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690836Reviewed-by:
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Peter Marshall authored
The client API provides a much simpler interface so that we don't have to deal with producers, consumers etc. directly. This CL removes all the code that dealt with the more complex API used previously. The architecture used here requires that the embedder call into Tracing::Initialize() to set up the tracing backend. The tracing controller then connects to this backend when calling DataSource::Register() and Tracing::NewTrace(). This will ultimately avoid the need for a virtual call (or two) for every trace event that need to be dispatched over the API - chrome can provide a backend and V8 will connect to it opaquely with the same code when tracing is enabled. Cq-Include-Trybots: luci.v8.try:v8_linux64_perfetto_dbg_ng Bug: v8:8339 Change-Id: I6b74fbb49ffcc89638caeb59ed3d5cc81238f3e8 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1634916Reviewed-by:
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Michael Starzinger authored
R=clemensh@chromium.org BUG=v8:9429,v8:9396 Change-Id: I35c6ef903e760ac3797ebe51722b4e6bccd4d105 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690945Reviewed-by:
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Ulan Degenbaev authored
This makes the heuristic for computing the number of parallel tasks in Scavenger consistent with that in Mark-Compactor. The patch helps mobile devices where even 1 MB new space can take 10ms to scavenge. Change-Id: I979de5e8485b93808ea079af2756f53d9b720e10 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1685612Reviewed-by:
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Tamer Tas authored
Performance infra recipes use callstats.py to run web page replays. Split (v8, infa, perf-infra) repositories make experimenting with callstats.py hard. This CL creates feature gating for simplifying performance infra experiments. R=ulan@chromium.org No-Try: true Bug: v8:9448 Change-Id: I2c3e139f4b9d6bce1ea4fdda1a44960d74d7d414 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690950 Auto-Submit: Tamer Tas <tmrts@chromium.org> Reviewed-by:
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Clemens Hammacher authored
This fixes the only violation of the 'runtime/references' warning in src/base by using a forwarding reference. R=mlippautz@chromium.org Bug: v8:9429, v8:9396 Change-Id: Ide2d28ab647e1cec78979c3f6d664b53c92a7d6e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690839 Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Reviewed-by:
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Andreas Haas authored
When I implemented these instructions, I copied the naming scheme of {GetGlobal}. That's not appropriate for the table.get instruction though, and I decided I suffered enough from that bad name now. R=clemensh@chromium.org Bug: v8:7581, v8:9396 Change-Id: Id1796425458f3d06a2da774374f02c49d665d2c6 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1690835Reviewed-by:
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