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  1. 17 Nov, 2020 12 commits
  3. 16 Nov, 2020 20 commits
  5. 15 Nov, 2020 1 commit
  7. 14 Nov, 2020 3 commits
  9. 13 Nov, 2020 4 commits
    • Nico Hartmann's avatar
      [TurboFan] Transition SharedFunctionInfo to kNeverSerialized (2) · 43997d3a
      Nico Hartmann authored 
      This is the 2nd step in series of CLs to move the SharedFunctionInfo
class to kNeverSerialized and make it concurrently accessible from
the background thread. This CL:
* Changes optimization of GetTemplateObject in JSCreateLowering to
  only perform the optimization of a template object exists in the
  SharedFunctionInfo[Ref], but skips the optimization if one is
  missing instead of allocating a new one on demand.

Bug: v8:7790
Change-Id: Ic37d8333676e54b3f8d69416480df12bd90723ea
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2463229
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: 's avatarGeorg Neis <neis@chromium.org>
Reviewed-by: 's avatarSantiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71189}
      43997d3a
    • Sathya Gunasekaran's avatar
      [intl] Cache the last used formatter if possible · 4b139f76
      Sathya Gunasekaran authored 
      Instead of caching only the default formatter, cache the last used
formatter if possible.

This is better because it's a common use case to create a formatter
in a different language and reuse it a lot, rather than create
several formatters in various languages.

Running the following benchmark:
```
let i = 0;

function toLocaleString() {
  i++;
  return i.toLocaleString();
}

i = 0;
function toLocaleStringWithLocale() {
  i++;
  return i.toLocaleString('en-US');
}

const functions = [toLocaleString, toLocaleStringWithLocale];

for (const f of functions) {
  let start = performance.now();
  for (let i = 0; i < 10e5; i++) {
    f();
  }
  let end = performance.now();
  print(`${f.name}: ${end - start}`);
}
```
sees the following improvements:

With this patch:
  toLocaleString: 384.292
  toLocaleStringWithLocale: 450.48900000000003

Without this patch:
  toLocaleString: 341.952
  toLocaleStringWithLocale: 23439.694

This a little over 50x improvement.

Bug: chromium:926075
Change-Id: I0e316e959c90243e175df985854832a7abddbf54
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2536461
Commit-Queue: Sathya Gunasekaran  <gsathya@chromium.org>
Reviewed-by: 's avatarToon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71188}
      4b139f76
    • Ulan Degenbaev's avatar
      [api] Introduce a single-threaded version of DefaultPlatform · a18a674b
      Ulan Degenbaev authored 
      The new platform can be used in combination with --single-threaded.
It disables background threads and thus avoids waiting on mutexes
and condition variables completely, which is useful for V8 embedders
that fork the V8 process after initialization.

As a bonus the new platform allows use to test --single-threaded and
has already uncovered an existing bug in parallel pointer updating code.

Change-Id: I3446fa027d2a077641cdaac0cd08062a1acae176
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2416501
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: 's avatarMichael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71187}
      a18a674b
    • Georg Neis's avatar
      Make PropertyCell's set_name method private · 466166b8
      Georg Neis authored 
      It is only used during initialization.

Bug: v8:7790
Change-Id: I2105ad01413e3b398b3252d14e83c930c0dd3e74
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2536637Reviewed-by: 's avatarSantiago Aboy Solanes <solanes@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Auto-Submit: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71186}
      466166b8