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  1. 07 Aug, 2019 13 commits
  3. 06 Aug, 2019 22 commits
  5. 05 Aug, 2019 5 commits
    • Peter Marshall's avatar
      [tracing] Fix TracingCpuProfiler test for Perfetto · 5ab7510e
      Peter Marshall authored 
      Update the TracingCpuProfiler test to work properly with perfetto.

Roll perfetto to get fixes for bugs encountered with starting/stopping
tracing rapidly, which happens in the test for the tracing profiler.

Add a check that the DataSource::Register call was successful to flush
out any errors there (although they are fixed by the perfetto roll).

Emit a fake trace event when stopping tracing in order to avoid
losing the final trace event that the user provided. Remove the ad-hoc
fake final trace events that the cctests for perfetto added.

Add a test StartAndStopRepeated which flushes out the issues fixed by
the perfetto roll.

TBR=yangguo@chromium.org

Cq-Include-Trybots: luci.v8.try:v8_linux64_perfetto_dbg_ng
Bug: v8:8339
Change-Id: I042d7385486bf42c86f1631406974693868a477f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1731006
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: 's avatarJakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63083}
      5ab7510e
    • Mythri A's avatar
      Reland "[ic] Don't transition to premonomorphic state" · 2999cea5
      Mythri A authored 
      This is a reland of 159df248

Original change's description:
> [ic] Don't transition to premonomorphic state
> 
> We used to use premonomorphic state to delay initializing the ICs.
> This optimization was to avoid the cost of setting up handlers if the
> code executed only once. With lazy feedback allocation we no longer
> need this.
> 
> This cl also renames LoadIC_Uninitialized to LoadIC_Nofeedback and
> StoreIC_Uninitialized to StoreIC_Nofeedback since we now miss to
> runtime in the uninitialized state and use the builtin when there
> is no feedback.
> 
> 
> Change-Id: I1633e61ea74664da51348e362c34c47a017a264a
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1683525
> Commit-Queue: Mythri Alle <mythria@chromium.org>
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63020}

Change-Id: Ica7eb65649615c2f8410d5b815a98b55cb1cfc4d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1731000
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: 's avatarToon Verwaest <verwaest@chromium.org>
Reviewed-by: 's avatarRoss McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63082}
      2999cea5
    • Ulan Degenbaev's avatar
      Revert ""Reland x4 [arraybuffer] Rearchitect backing store ownership"" · 8fdb2387
      Ulan Degenbaev authored 
      This reverts commit 5611f70b.

Reason for revert: flaky tests: v8:9588, v8:9587

Original change's description:
> "Reland x4 [arraybuffer] Rearchitect backing store ownership"
> 
> This is a reland of bc33f5ae
> 
> Contributed by titzer@chromium.org
> 
> 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.
> 
> TBR=yangguo@chromium.org
> 
> BUG=v8:9380,v8:9221,chromium:986318
> 
> Change-Id: If671a4a9ca0476e8f084efae46e0d2bf99ed99ef
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1731005
> Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63041}

TBR=ulan@chromium.org,yangguo@chromium.org,mstarzinger@chromium.org,clemensh@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: v8:9380, v8:9221, chromium:986318
Change-Id: Ic7381239f4e90d0c437b7e47a5ac6e8bce60f882
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1736747Reviewed-by: 's avatarUlan Degenbaev <ulan@chromium.org>
Reviewed-by: 's avatarClemens Hammacher <clemensh@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63081}
      8fdb2387
    • Milad Farazmand's avatar
      s390: [heap] Relocating the write barrier flag on s390 · 9f7c3f09
      Milad Farazmand authored 
      Port ae60ea7e

Original Commit Message:

    The mode without write barriers works only if incremental marking
    is disabled and the single generation mode is enabled.

R=wangrong089@gmail.com, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Change-Id: If2eb047bed41b92a0366c1401d0acf069257b650
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1733730Reviewed-by: 's avatarMilad Farazmand <miladfar@ca.ibm.com>
Reviewed-by: 's avatarUlan Degenbaev <ulan@chromium.org>
Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#63080}
      9f7c3f09
    • Tobias Tebbi's avatar
      [torque] remove support for implicit branching on macros with labels · ec2ea85f
      Tobias Tebbi authored 
      Now that we can short-circuit control flow in the optimizing compiler,
there is no more need for BranchIf... macros in CSA/Torque.
Thus removing support for them in Torque and rewriting Torque macros to
use bool return values instead.

Bug: v8:7793
Change-Id: Ie4b7522aa5558be038fe821d8b5d02859d522ed1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1724211
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: 's avatarJakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63079}
      ec2ea85f