This CL validates the hypothesis that the only misaligned reads/writes
which are not supported are double and float, and only on arm32.
Running these on the CI and Golem will validate this hypothesis.
Bug: https://github.com/dart-lang/sdk/issues/45009
Change-Id: I0a77fd1f47a388d1f454c1ded50cd7ecaeadb0f0
Cq-Include-Trybots: luci.dart.try:dart-sdk-linux-try,dart-sdk-mac-try,dart-sdk-win-try,vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64-try,vm-kernel-asan-linux-release-x64-try,vm-kernel-mac-debug-x64-try,vm-kernel-linux-debug-ia32-try,vm-kernel-linux-debug-x64-try,vm-kernel-nnbd-linux-debug-x64-try,vm-kernel-nnbd-linux-debug-ia32-try,vm-kernel-nnbd-mac-release-x64-try,vm-kernel-nnbd-win-debug-x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-linux-debug-simarm_x64-try,vm-kernel-precomp-nnbd-linux-debug-x64-try,vm-kernel-precomp-win-release-x64-try,vm-kernel-reload-linux-debug-x64-try,vm-kernel-reload-rollback-linux-debug-x64-try,vm-kernel-win-debug-x64-try,vm-kernel-win-debug-ia32-try,vm-precomp-ffi-qemu-linux-release-arm-try,vm-kernel-precomp-obfuscate-linux-release-x64-try,vm-kernel-msan-linux-release-x64-try,vm-kernel-precomp-msan-linux-release-x64-try,vm-kernel-precomp-android-release-arm_x64-try,analyzer-analysis-server-linux-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/190523
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Aske Simon Christensen <askesc@google.com>
I managed to remove 2 of ~5 calls to _elementType, as the argument
type was known to have a property, `.type`. I removed the null check
from the function, as it never needed to be used; the argument should
always be non-null. Two calls then require null checks, but this does
not change behavior, because null was never passed in there; `dynamic`
would have been returned then, and cast to FunctionType, which would
have failed.
Change-Id: I9b93a11e60e20a99ba8df4b5677e4c5796a49fcc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191384
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Samuel Rawlins <srawlins@google.com>
Commit-Queue: Samuel Rawlins <srawlins@google.com>
There are no formatting changes aside from adding support for generic
metadata annotations, which are not yet used. Changes are:
- Migrated to null safety.
- Return exit code from FormatCommand.run().
Change-Id: I8892f6551541f673b8e49045665e2371ba40b026
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191182
Commit-Queue: Jake Macdonald <jakemac@google.com>
Reviewed-by: Nate Bosch <nbosch@google.com>
Also ensure the number of parent type arguments is appropriately
adjusted in the returned FunctionType when partially instantiating
a FunctionType, and that free parent type arguments are _not_
included in types built while reading constants.
Since the number of parent type arguments is now cached there, we
no longer need to also cache them in ClosureData. We can also remove
the parent walking in Function::NumParentTypeArguments().
Previously, a FunctionType where the component types did not use
parent type parameters was considered instantiated. This CL changes
it so that FunctionType with free parent type parameters are never
considered instantiated. This is necessary because otherwise,
when instantiating the parent type parameters, a FunctionType that
does not use its parent type parameters will be used unchanged
instead of creating a copy with fewer parent type parameters.
Because of this, places where IsInstantiated was used to simply
check for generic parent functions (namely, for implicit closure
creation) has been appropriately weakened to check
!HasGenericParent() instead.
TEST=Existing tests on CI.
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Change-Id: Ifb4a0a1273d8d01908cdf4ffc3c4c28a1c33ffa0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/190021
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
History:
* Back in (pre June) 2018 worktrees in git just worked.
* https://dart-review.googlesource.com/c/sdk/+/48091 made it not work.
* https://github.com/dart-lang/sdk/issues/33619 was filed.
* https://dart-review.googlesource.com/c/sdk/+/127485 was created to
work around the problem.
I don't know when it happened, but I can't make the above workaround
work (at least not anymore) --- adding a `default_git_folder` to my
`args.gn` has no effect.
This CL builds on it and automatically sets the correct path based on
a call to `git rev-parse --resolve-git-dir .git` which gives the
correct dir for both worktrees and non-worktrees.
This is the 2nd try which should also work on Windows.
The original CL is in patchset #1.
This reverts commit 7e2cc73da8.
Change-Id: I298aef8ac9095ce3ef4f827218675584b68a02c2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191362
Reviewed-by: William Hesse <whesse@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
This is a follow-up to https://dart-review.googlesource.com/c/sdk/+/186680.
After that change, tree shaker started reusing Reference to a Field
when it is replaced with a getter. As a side-effect, this makes
FieldInitializer.field to crash as Reference is now pointing to Procedure,
not a Field.
The fix is to carefully use 'node.fieldReference.asMember' instead of
'node.field' and then retrieve original Field node if it was replaced
with a getter.
TEST=pkg/vm/testcases/transformations/type_flow/transformer/regress_45324_2.dart
Fixes https://github.com/dart-lang/sdk/issues/45324
Change-Id: Ic34e8b9933b00997cd350a4ad93f798c86ac60ad
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191323
Auto-Submit: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
We originally sized the compressed heap at 2GB to avoid implementing alignment offsets. (When decompression is sign-extension + base, base should be the middle of a 4GB-aligned region.) After 8db0a975c1, the needed alignment offset is zero, and we no longer need to avoid the high bit being set.
TEST=ci
Change-Id: Ib6e6c40bcb9638e01867edd527b3acaaccec570b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191321
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Liam Appelbe <liama@google.com>
Evaluated constant instances in kernel are represented as a list of
field->value pairs. Tree shaker should not remove fields used in
constants as it may potentially affect identity of constant instances
(non-identical constants may become identical).
Previously, fields used in constants were only marked as written,
so they could still be removed as write-only fields.
Furthermore, if such field was also used as an interface target
it could be converted to an abstract getter, causing the conflict
during kernel AST serialization.
This fix marks fields used in constants as also read, effectively
preventing their tree shaking.
Flutter gallery AOT snapshot size is not affected.
TEST=pkg/vm/testcases/transformations/type_flow/transformer/regress_45324.dart
Fixes https://github.com/dart-lang/sdk/issues/45324
Change-Id: Id6d35604757ad6ba1e23f7227aa9b769448c2688
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191280
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
This CL adds code to detect situations when we hit
null error through GDT call with non-null receiver.
We achieve this by making receiver's cid part of the
GDT calling convention and checking this cid
in runtime entry responsible for throwing the null
error.
This CL is an attempt to narrow down b/179632636
and collapse various impossible crash reports
into a single native crash cluster by crashing VM
instead of throwing a null error.
TEST=tested manually
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Change-Id: If2ed4646c4c0f403016266e4e83e296a7b234cb5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191141
Auto-Submit: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Android L and newer (API level 21) provides a way to
specify abort message which will be included into
crash report created by debuggerd.
Make sure our DynamicAssertionHelper uses this functionality
if available.
TEST=tested manually
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Change-Id: If25cd168d43677e0a0fe9b63e21a017415686ab7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191140
Auto-Submit: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Make the parser handle metadata properly according to the spec.
There has been some confusion in regards to metadata because
https://github.com/dart-lang/language/blob/master/accepted/future-releases/small-features-21Q1/feature-specification.md
(used to) say we needed a spec update.
That was done in the parser in
https://dart-review.googlesource.com/c/sdk/+/182668
but really that made the parser adhere to the spec as it was which is
also correct (as the spec change wasn't needed at all).
The parser also needs to be able to skip metadata, though, and that
wasn't done it that CL which caused the issues in
https://github.com/dart-lang/sdk/issues/45120
The work directly in this CL is:
* Add lots of comments to parseMetadata to make them more up-to-date with
the spec.
* Fix skipMetadata to correspond to parseMetadata.
* Tests verifying that 45120 is fixed in the parser and that metadata in
general works as expected in the parser.
(In working on this, the future specification was corrected to say that the
spec did not need updating. Thanks to Erik for the quick turn-around
there).
Bug: #45120
Change-Id: Id1e4912cac7e5d9113efe083b3ecd06e6834a16e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/190880
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Instead of being part of the --trace-precompiler output, there is
is a new flag --write-retained-reasons-to=<path>.
To allow for non-functions to have reasons for retention, the
JSON objects in the array now have one additional field:
* type: a string, the C++ type of the Dart object.
This CL also wraps all the machinery in a RetainedReasonsWriter
class instead of putting it in the Precompiler interface.
TEST=vm/dart{,2}/use_trace_precompiler_flag
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Change-Id: Ifa40ac64fdcbdad5114499425c7f8b08e327fa76
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/190525
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
There are two fixes:
1) If a function was compiled but not retained, precompiler
should still trace through types used in exception handlers.
2) Certain auxiliary functions such as implicit closure functions
and field initializers were added to 'possibly_retained_functions_'
set but were not traced through AddTypesOf and were not added to
'functions_to_retain_' set.
Flutter gallery AOT snapshot size
release - no changes
release-sizeopt arm +0.13%, arm64 +0.14%
TEST=ci
Fixes https://github.com/dart-lang/sdk/issues/45179
Issue https://github.com/dart-lang/sdk/issues/44852
Change-Id: Ide9a7e82a7bb9098dc90bc41a76e527e7a5cb603
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/190781
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Tess Strickland <sstrickl@google.com>
Current version of dwds does not supply module format to the
expression compiler worker, resulting in initialization failures.
Add default 'amd' format so dwds continues to work with new SDK
version before a matching update that passes format to dwds
lands.
Change-Id: I10e8ddc09b48b91c9c085a6d7579ad01c6e13399
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/190820
Reviewed-by: Gary Roumanis <grouma@google.com>
Reviewed-by: Nicholas Shahan <nshahan@google.com>
Commit-Queue: Anna Gringauze <annagrin@google.com>
Daco Harkes