Skip to content

V
V8
Switch branch/tag
  1. 04 Jan, 2016 22 commits
  3. 01 Jan, 2016 1 commit
  5. 31 Dec, 2015 3 commits
  7. 30 Dec, 2015 9 commits
    • littledan's avatar
      Fix 'illegal access' in Date constructor edge case · a9c79100
      littledan authored 
      In a rare edge case, a difference in checks between C++ and
JavaScript lead to an 'illegal access' being thrown by the Date
constructor. This patch harmonizes the checks from both sides.
It's possible that slightly larger dates could be permitted,
as the ECMAScript 2015 specification indicates that +287396-10-12
would be a permissible date in the note in
http://tc39.github.io/ecma262/#sec-extended-years
This patch does not revisit the limit, only clears up the
inconsistency.

BUG=v8:4640
R=cbruni
LOG=Y

Review URL: https://codereview.chromium.org/1545883003

Cr-Commit-Position: refs/heads/master@{#33068}
      a9c79100
    • littledan's avatar
      Reland of Use ES2015-style TypedArray prototype chain (patchset #1 id:1 of... · e549c7a3
      littledan authored 
      Reland of Use ES2015-style TypedArray prototype chain (patchset #1 id:1 of https://codereview.chromium.org/1554523002/ )

Reason for revert:
Should be fixed again with this Blink change to add NeedsManualRebaseline

Original issue's description:
> Revert of Use ES2015-style TypedArray prototype chain (patchset #5 id:80001 of https://codereview.chromium.org/1541233002/ )
>
> Reason for revert:
> [Sheriff] Changes layout tests. Please fix upstream first if intended.
>
> https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/3689
>
> Original issue's description:
> > Use ES2015-style TypedArray prototype chain
> >
> > This patch switches TypedArrays to use the prototype chain described
> > in the ES2015 specification, which adds a %TypedArray% superclass above
> > all individual TypedArray types. Most methods are defined on the
> > superclass rather than the subclasses.
> >
> > In order to prevent a performance regression, a few methods are
> > marked as inline. Inlining might prevent code which was previously
> > monomorphic from becoming polymorphic, and it was specifically
> > applied in places where methods became more polymorphic than before.
> > Tests with realistic workloads would be nice to do before this
> > ships in stable.
> >
> > This patch does not bring TypedArrays up to full spec compliance. In
> > particular, @@species is not yet supported.
> >
> > R=cbruni
> > BUG=v8:4085
> > LOG=Y
> >
> > Committed: https://crrev.com/07c91dccbe55c7be3ec75857dee5ad59873330b7
> > Cr-Commit-Position: refs/heads/master@{#33050}
>
> TBR=caitpotter88@gmail.com,cbruni@chromium.org,littledan@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:4085
>
> Committed: https://crrev.com/28b55ffd1e32e09aaf42b8bbb407944d4808e07c
> Cr-Commit-Position: refs/heads/master@{#33053}

TBR=caitpotter88@gmail.com,cbruni@chromium.org,machenbach@chromium.org
BUG=v8:4085
LOG=Y

CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1558663002

Cr-Commit-Position: refs/heads/master@{#33067}
      e549c7a3
    • cbruni's avatar
      [runtime] TailCallRuntime and CallRuntime should use default argument · b889d79d
      cbruni authored 
      counts specified in runtime.h.

In the vast majority of the cases when we call into the runtime we use
the default number of arguments. Hence, there is not need to specify it
again. This CL also removes TailCallExternalReference as there were no
users.

BUG=

Review URL: https://codereview.chromium.org/1553703002

Cr-Commit-Position: refs/heads/master@{#33066}
      b889d79d
    • littledan's avatar
      Reland "Clean up promises and fix an edge case bug (patchset #4 id:60001 of... · 797d1090
      littledan authored 
      Reland "Clean up promises and fix an edge case bug (patchset #4 id:60001 of https://codereview.chromium.org/1488783002/ )"

This patch relands a change to ES2015 Promises which brings us closer to
spec compliance. In this new version, a bug which would lose async callstack
data was fixed.

R=adamk
CC=rossberg,caitp
LOG=Y
BUG=v8:3641
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1538663002

Cr-Commit-Position: refs/heads/master@{#33065}
      797d1090
    • mbrandy's avatar
      PPC: [runtime] Introduce dedicated JSBoundFunction to represent bound functions. · 974e50ba
      mbrandy authored 
      Port 97def807

Original commit message:
    According to the ES2015 specification, bound functions are exotic
    objects, and thus don't need to be implemented as JSFunctions. So
    we introduce a new JSBoundFunction type to represent bound functions
    and make them optimizable. This already improves the performance of
    calling or constructing bound functions by 10-100x depending on the
    use case because we avoid the crazy dance between JavaScript and C++
    that was implemented in v8natives.js previously.

    There's still room for improvement in the performance of actually
    creating bound functions, which is also relevant in practice, but
    we already have a plan how to accomplish that later.

R=bmeurer@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=chromium:535408, chromium:571299, v8:4629
LOG=n

Review URL: https://codereview.chromium.org/1559473002

Cr-Commit-Position: refs/heads/master@{#33064}
      974e50ba
    • mbrandy's avatar
      PPC: [turbofan] Add Int64(Add|Sub)WithOverflow support. · a9f69934
      mbrandy authored 
      Port bafb568b

R=jarin@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1552783002

Cr-Commit-Position: refs/heads/master@{#33063}
      a9f69934
    • mbrandy's avatar
      PPC: Refine "[ic] Fixed receiver_map register trashing in KeyedStoreIC megamorphic." · 49e25ff4
      mbrandy authored 
      Do not abstract r0 as a general scratch register -- usage is valid
only in short, localized sequences (since its value may be altered
implicitly by some macro operations).

R=joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=chromium:571370
LOG=N

Review URL: https://codereview.chromium.org/1556643002

Cr-Commit-Position: refs/heads/master@{#33062}
      49e25ff4
    • bmeurer's avatar
      [runtime] Migrate Object.create to C++. · 6a51d311
      bmeurer authored 
      There's no point in keeping the ObjectCreate JavaScript wrapper
function, which even does allocation site pretenuring for the
instances created via Object.create (where ObjectCreate itself is
the AllocationSite), and does not offer any sane way forward.

Instead introduce a new ObjectCreate C++ builtin, which currently
serves as a baseline implementation, on top of which we can think
about ways to optimize Object.create for the common case (i.e.
frameworks such as Ember.js make heavy use of Object.create).

R=cbruni@chromium.org
TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/1558433002

Cr-Commit-Position: refs/heads/master@{#33061}
      6a51d311
    • v8-autoroll's avatar
      Update V8 DEPS. · 5a49eb01
      v8-autoroll authored 
      Rolling v8/tools/clang to d1e1de24f0e66c2f5a8b865c8ffb4042793286e9

TBR=machenbach@chromium.org,vogelheim@chromium.org,hablich@chromium.org

Review URL: https://codereview.chromium.org/1551053002

Cr-Commit-Position: refs/heads/master@{#33060}
      5a49eb01
  9. 29 Dec, 2015 5 commits