This reverts commit cf78da8a48.
Reason for revert: introduces significant performance regression (~30%) on analyzer benchmarks (warm-analysis) without clearly visible hot-spot.
Original change's description:
> [VM] Reduce Smi size to 32 bit on 64 bit platforms
>
> This reduces small tagged integers on 64 bit platforms from 63 bits to
> 31 bits plus one tag bit.
> This is a step on the way to compile-time-optional compressed pointers
> on 64 bit platforms. See more about this at go/dartvmlearnings
> This causes a slowdown for some uses of integers that don't fit in 31
> signed bits, but because both x64 and ARM64 have unboxed 64 bit
> integers now the performance hit should not be too bad.
>
> This is a reapplication of
> https://dart-review.googlesource.com/c/sdk/+/46244
> It was reverted due to a compilation error on 32 bit
> ARM with DBC.
>
> R=vegorov@google.com
>
> Change-Id: I943de1768519457f0e5a61ef0b4ef204b6a53281
> Reviewed-on: https://dart-review.googlesource.com/51321
> Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
TBR=vegorov@google.com,erikcorry@google.com
# Not skipping CQ checks because original CL landed > 1 day ago.
Change-Id: I8c5b909ec38663b5f5b05f69ef488c97341f8f3d
Reviewed-on: https://dart-review.googlesource.com/54000
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
This reduces small tagged integers on 64 bit platforms from 63 bits to
31 bits plus one tag bit.
This is a step on the way to compile-time-optional compressed pointers
on 64 bit platforms. See more about this at go/dartvmlearnings
This causes a slowdown for some uses of integers that don't fit in 31
signed bits, but because both x64 and ARM64 have unboxed 64 bit
integers now the performance hit should not be too bad.
This is a reapplication of
https://dart-review.googlesource.com/c/sdk/+/46244
It was reverted due to a compilation error on 32 bit
ARM with DBC.
R=vegorov@google.com
Change-Id: I943de1768519457f0e5a61ef0b4ef204b6a53281
Reviewed-on: https://dart-review.googlesource.com/51321
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
This reduces small tagged integers on 64 bit platforms from 63 bits to
31 bits plus one tag bit.
This is a step on the way to compile-time-optional compressed pointers
on 64 bit platforms. See more about this at go/dartvmlearnings
This causes a slowdown for some uses of integers that don't fit in 31
signed bits, but because both x64 and ARM64 have unboxed 64 bit
integers now the performance hit should not be too bad.
This reapplies the change reviewed at
https://dart-review.googlesource.com/c/sdk/+/46244R=kustermann@google.com
Change-Id: I605c21506ec7d4c69fa7049bc419b3ee370685fc
Reviewed-on: https://dart-review.googlesource.com/50202
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Erik Corry <erikcorry@google.com>
This reduces small tagged integers on 64 bit platforms from 63 bits to 31 bits
plus one tag bit.
This is a step on the way to compile-time-optional compressed pointers on 64
bit platforms. See more about this at go/dartvmlearnings
This causes a slowdown for some uses of integers that don't fit in 31 signed
bits, but because both x64 and ARM64 have unboxed 64 bit integers now the
performance hit should not be too bad.
R=kustermann@google.com
Change-Id: I035ed84c29b64f0432cd2d24193eb1c6303c14b0
Reviewed-on: https://dart-review.googlesource.com/46244
Commit-Queue: Erik Corry <erikcorry@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
The implementation of patching in analyzer checks that signatures are identical.
This is stricter than it needs to be, but the required fixes in dart:core are
pretty simple.
BUG=
R=hausner@google.com
Review-Url: https://codereview.chromium.org/2655223005 .
- bring patched SDK generation scripts and VM patch tweaks that allow VM patch files to be parsed by analyzer front-end;
Patched SDK is an SDK with all VM patches spliced into it. Kernel compiler is based on the analyzer front-end which does
not have any patch files support/model so for it to produce Kernel files that match VM we need to generate a such patched SDKs.
- bring test script modifications that allow to test Kernel pipeline
BUG=
R=asiva@google.com, kmillikin@google.com, whesse@google.com, zra@google.com
Review URL: https://codereview.chromium.org/2434123003 .
Allow members of patch classes to be annotated with @patch. The VM
ignores the annotation. I simply replaces the original method
if the name matches, or reports an error if field names match.
Adding a bit is_patched to members to do more checking remains a
TODO. There are currently no unused bits available, and I don’t want
to increase the size of Function objects for this.
BUG=
R=asiva@google.com
Review URL: https://codereview.chromium.org/2230383003 .
Annotate patch classes and top-level patch functions with @patch
instead of the pseudo-keyword patch. This allows the analyzer
to read patch files, and matches the syntax that dart2js uses.
The deprecated syntax is still supported, but a warning is printed when detected.
BUG=
Review URL: https://codereview.chromium.org/2220883004 .
This implements const constructor fromEnvironment on bool, int and
String.
The VM have the added -Dname=value option to define the value for the
properties. All values are provided by using the -D - nothing is read
from the environment.
If the resulting value is null or - in the case of int.fromEnvironment
- not a number an ArgumentError is thrown.
This CL does not have any implementation for dart2js.
This is a continuation of the change
https://chromiumcodereview.appspot.com/24975002 by iposva@
BUG=
R=iposva@google.com
Review URL: https://codereview.chromium.org//50983002
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@29642 260f80e4-7a28-3924-810f-c04153c831b5
Zichang Guo