`Dart_NewWeakPersistentHandle` and `Dart_NewFinalizableHandle` in
`dart_api.h` do no longer accept `Pointer`s and subtypes of `Struct`s
as values passed in to the `object` parameter.
Expandos no longer accept `Pointer`s and subtypes of `Struct`s
as values passed in to the `object` parameter.
Cleans up unused object_store->ffi_struct_class.
Reland 1: Allow importing `dart:ffi` from `dart:core` with
`--enable-ffi=false`.
Reland 2: Allow the new `_Compound` class to extend `NativeType`. (This
got triggered in this CL on the build because of the import
from `dart:core`.)
Closes: https://github.com/dart-lang/sdk/issues/45071
Breaking change: https://github.com/dart-lang/sdk/issues/45072
TEST=vm/cc/DartAPI_FinalizableHandleErrors
TEST=vm/cc/DartAPI_WeakPersistentHandleErrors
TEST=tests/ffi(_2)/expando_test.dart
Change-Id: I133278e16bd75cd2bb6234e7ddf042ffa0a54fd6
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,vm-kernel-precomp-linux-debug-x64c-try,vm-kernel-linux-debug-x64c-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/195079
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
`Dart_NewWeakPersistentHandle` and `Dart_NewFinalizableHandle` in
`dart_api.h` do no longer accept `Pointer`s and subtypes of `Struct`s
as values passed in to the `object` parameter.
Expandos no longer accept `Pointer`s and subtypes of `Struct`s
as values passed in to the `object` parameter.
Cleans up unused object_store->ffi_struct_class.
Closes: https://github.com/dart-lang/sdk/issues/45071
Breaking change: https://github.com/dart-lang/sdk/issues/45072
TEST=vm/cc/DartAPI_FinalizableHandleErrors
TEST=vm/cc/DartAPI_WeakPersistentHandleErrors
TEST=tests/ffi(_2)/expando_test.dart
Change-Id: I9af6d0173db60614091068c218391f73756c135f
Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-linux-debug-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/195061
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
In preparation of having `Union` besides `Struct`, renames all mentions
of `Struct` to `Compound`.
Also, changes the type checking to have `allowXYZ` named arguments
always default to false, and remove redundant arguments.
Bug: https://github.com/dart-lang/sdk/issues/38491
tools/test.py ffi ffi_2
TEST=tests/ffi(_2)/(.*)by_value_(*.)_test.dart
Change-Id: Ie5f7cf4189dc315f896e3b3933ff0e0580ac540f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/194424
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Aske Simon Christensen <askesc@google.com>
Introduces the class `_Compound extends NativeType`, for sharing between
`Struct` and `Union`.
Does minimal changes to CFE and IL construction. Follow up refactor CLs
rename everything.
Bug: https://github.com/dart-lang/sdk/issues/38491
tools/test.py ffi ffi_2
TEST=tests/ffi(_2)/(.*)by_value_(*.)_test.dart
Change-Id: I276ceb9249c20bd331c2f8b6ef64e35acb525e9c
Cq-Include-Trybots: luci.dart.try:vm-precomp-ffi-qemu-linux-release-arm-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-reload-linux-debug-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/194765
Reviewed-by: Aske Simon Christensen <askesc@google.com>
`Dart_NewWeakPersistentHandle` and `Dart_NewFinalizableHandle` in
`dart_api.h` do no longer accept `Pointer`s and subtypes of `Struct`s
as values passed in to the `object` parameter.
Expandos no longer accept `Pointer`s and subtypes of `Struct`s
as values passed in to the `object` parameter.
Cleans up unused object_store->ffi_struct_class.
Closes: https://github.com/dart-lang/sdk/issues/45071
Breaking change: https://github.com/dart-lang/sdk/issues/45072
TEST=vm/cc/DartAPI_FinalizableHandleErrors
TEST=vm/cc/DartAPI_WeakPersistentHandleErrors
TEST=tests/ffi(_2)/expando_test.dart
Change-Id: I1f11adfa073c7d2c979f3c2bb15c7444c7c767a0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/186280
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Adds a way to express native effects in Dart expressions in kernel.
This CL adds a `void _nativeEffect(Object)` to `dart:internal`.
The semantics of `_nativeEffect` are to not execute its arguments and
return `null`.
This CL uses this `_nativeEffect` to make sure that we never execute
the struct constructor invocations used to simulate the native behavior
of FFI trampolines.
Closes: https://github.com/dart-lang/sdk/issues/45607
TEST=tests/ffi(_2)/native_effect_test.dart
Change-Id: Ie06de145e49f8b1cae9e148c2d5d97d5cd8e6878
Cq-Include-Trybots: luci.dart.try:vm-precomp-ffi-qemu-linux-release-arm-try,vm-ffi-android-debug-arm64-try,vm-kernel-precomp-asan-linux-release-x64-try,vm-kernel-precomp-dwarf-linux-product-x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-obfuscate-linux-release-x64-try,analyzer-analysis-server-linux-try,analyzer-linux-release-try,dart-sdk-linux-try,vm-kernel-reload-rollback-linux-debug-x64-try,vm-kernel-reload-linux-debug-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/194421
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
This CL enables tree shaking of `Struct` sub classes by simulating the
native behavior in Dart code.
We call the struct constructors in let expressions where FFI trampolines
are created which allocate these struct objects in native code. This way
TFA is instructed about the native behavior. The VM recognizes these
constructor calls as dead code and removes them.
For more info see go/dart-ffi-struct-treeshaking.
Closes: https://github.com/dart-lang/sdk/issues/38721
This CL fixes the types on the generated #fromTypedDataBase constructors.
Also, this CL also cleans up the struct naming:
* _addressOf -> _typedDataBase
* _fromPointer -> _fromTypedDataBase
* #pointer -> #typedDataBase
These cleanups are not split into a separate CL to prevent updating
the .expect files multiple times.
Finally, this CL enables running a single transformer test through:
`dart pkg/vm/test/transformations/type_flow/transformer_test.dart name`
TEST=pkg/vm/testcases/transformations/type_flow/transformer/ffi_struct_constructors.dart
TEST=tests/ffi(_2)/function_callbacks_structs_by_value_generated_test.dart
TEST=tests/ffi(_2)/function_structs_by_value_generated_test.dart
Change-Id: I418d0d73bc86b234dfe5b7b04ae726c33d2b8aeb
Cq-Include-Trybots: luci.dart.try:vm-precomp-ffi-qemu-linux-release-arm-try,vm-ffi-android-debug-arm64-try,vm-kernel-precomp-asan-linux-release-x64-try,vm-kernel-precomp-dwarf-linux-product-x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-obfuscate-linux-release-x64-try,analyzer-analysis-server-linux-try,analyzer-linux-release-try,dart-sdk-linux-try,vm-kernel-reload-rollback-linux-debug-x64-try,vm-kernel-reload-linux-debug-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/193661
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Closes: https://github.com/dart-lang/sdk/issues/38158
This CL implements unaligned access for float/double on arm32, but does
not expose it in an API. Rather it only uses these loads/stores inside
the getters and setters of packed structs.
Bug: https://github.com/dart-lang/sdk/issues/45009
Besides unaligned access for float/double, this CL is mostly a CFE
change. The only VM change is reading the packing in the
`_FfiStructLayout` annotation.
The implementation of using the packing in the VM, and analyzer changes
have landed separately in earlier CLs.
tools/test.py ffi ffi_2
TEST=tests/ffi(_2)/(.*)by_value_(*.)_test.dart
Change-Id: Ic3106ecc626d2e30674a49bf03f65ae12d2b3502
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/+/186143
Reviewed-by: Aske Simon Christensen <askesc@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>
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>
The CL is a step towards have a more restricted and wellstructured
handled of references and canonical names.
The CL moves Reference to canonical_name.dart and makes
CanonicalName.reference private, and replaces CanonicalName.getReference
with a 'reference' getter.
It also removes NamedNode.canonicalName, Field.getterCanonicalName and
Field.setterCanonicalName so that these can only be accessed through the
corresponding reference. This is to reduce the reliance on the
canonical names which, ideally, should only be part of serialization and
deserialization.
TEST=existing
Change-Id: I955fb7d52d4e112d8741f7c12dcf38b74ae0c91a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/190442
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
This CL only changes dart:ffi API, CFE, and analyzer. No VM changes
were needed because the dimensions of inline arrays can be flattened
before passing them to the VM. The multi-dimensionality does not
impact the ABI.
Closes: https://github.com/dart-lang/sdk/issues/45023
TEST=pkg/analyzer/test/src/diagnostics/size_annotation_dimensions_test.dart
TEST=pkg/front_end/testcases/nnbd/ffi_struct_inline_array_multi_dimensional.dart
TEST=tests/ffi/function_structs_by_value_generated_test.dart
TEST=tests/ffi/inline_array_multi_dimensional_test.dart
Change-Id: Ica2c01fccbea7e513879365b34086d8968b54c5b
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/+/188286
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Aske Simon Christensen <askesc@google.com>
This removes the @fields and @=fields canonical name
encodings that allowed for encoding of conflicting members
and didn't support field<->getter/setter conversion
between dills or between outline and full dill.
TEST=existing tests+add aot expectation tests
Change-Id: I119b0c95f90e456356146cdc2d9241de4c1b4fff
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/186680
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Adds support for single dimension inline arrays in structs. Multi-
dimensional arrays will be supported in a future CL.
This CL adds:
- CFE static error checks for inline arrays.
- CFE transformations for inline arrays.
- VM consumption of inline array fields for NativeType.
- Test generator support for inline arrays + generated tests.
Previous CLs added support for inline arrays in:
- analyzer https://dart-review.googlesource.com/c/sdk/+/183684
- updated in this CL to new API.
- ABI calculation https://dart-review.googlesource.com/c/sdk/+/183682
Closes: https://github.com/dart-lang/sdk/issues/35763
Open issue: https://github.com/dart-lang/sdk/issues/45101
CFE transformations are tested with expectation files:
TEST=pkg/front_end/testcases/(.*)/ffi_struct_inline_array.dart
Trampolines and CArray API are tested with end-to-end Dart tests:
TEST=tests/ffi(_2)/(.*)by_value(.*)test.dart
TEST=tests/ffi(_2)/inline_array_test.dart
Compile-time errors (both CFE and analyzer) are tested in:
TEST=tests/ffi(_2)/vmspecific_static_checks_test.dart
Change-Id: I014c0e4153f1b885638adce80de6ab3cac8e6bb2
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/+/183640
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Clement Skau <cskau@google.com>
This reverts commit 3892e95547.
Reason for revert: Breaks Flutter web
Original change's description:
> [cfe] Encode field references as @getters and @setters
>
> This removes the @fields and @=fields canonical name
> encodings that allowed for encoding of conflicting members
> and didn't support field<->getter/setter conversion
> between dills or between outline and full dill.
>
> TEST=existing tests
>
> Change-Id: Id15e58ad4d1847d2c98a688705e5945196146c6d
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/184783
> Commit-Queue: Johnni Winther <johnniwinther@google.com>
> Reviewed-by: Jens Johansen <jensj@google.com>
> Reviewed-by: Alexander Markov <alexmarkov@google.com>
Change-Id: I744e284b16e097fa0833c5bdf1bc7653f13bdf63
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/186147
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
This removes the @fields and @=fields canonical name
encodings that allowed for encoding of conflicting members
and didn't support field<->getter/setter conversion
between dills or between outline and full dill.
TEST=existing tests
Change-Id: Id15e58ad4d1847d2c98a688705e5945196146c6d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/184783
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Before this CL the FFI transformation was always run (for target VM),
so if for instance running dart2js (from source), e.g. like
`out/ReleaseX64/dart -DDFE_VERBOSE=true pkg/compiler/bin/dart2js.dart --help`
one could see how it spends something like 120-140 ms, which is
something along the lines of 2.5% of the entire request processing
(i.e. compile and serialization).
This CL first checks if dart:ffi is imported at all. If it's not the
transformation is skipped.
When compiling dart2js (where, at least currently, dart:ffi is not used)
this skips the transformation, thus saving the 120-140 ms (or ~2.5%).
All measurements on my machine. Your mileage may vary.
TEST=Existing tests.
Change-Id: Ia5d3d7b989f549ca5da257660c204e8c59f15d4b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/185543
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
This CL completes the migration of the first wave of
interdependent libraries in package:kernel, including ast.dart.
In order to ensure non-nullability on AST properties, the Transformer
has been split in 2 variants: Transformer which doesn't support
removal of nodes and RemovingTransformer which supports removal where
allowed by the context using 'removal sentinels'.
Start reviewing Transformer and RemovingTransformer in visitors.dart
since many of the changes are caused by the changes here.
Included in the migration are the mixin_deduplication.dart and
unreachable_code_elimination.dart since these needed porting to
the RemovingTransformer which was aided by opting in the libraries
which only depended on ast.dart.
TEST=existing
Change-Id: I9e63b985bd24896c25edd4ee51e37770187bcc17
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/184786
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
The front end previously enforced a stricter-than-spec requirement on
conflicting imports on its own code. The check was included of the
kernel snapshot and therefore always enforced, even in published sdks.
The extra check was removed a month ago and now tools/sdks/ have been
updated to use a later version of the sdk, so the unneeded hide
combinators can now be removed from the source code.
Closes#44667
TEST=existing
Change-Id: I1d1053b1ef9a40b6a918eef515a02d7b404906c9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/185084
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Removes the entry-point on the `#sizeOf` field of `Struct` subtypes,
because we are no longer using it in the runtime.
Does not remove the entry-point from the constructor yet, because FFI
trampolines can instantiate these objects. Updated the TODOs to reflect
this.
Bug: https://github.com/dart-lang/sdk/issues/38721
TEST=tests/ffi(_2)/* in precompiled mode.
Change-Id: If3889e782b8fe34ef1c34cf8af83da041b4d2ef5
Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-nnbd-linux-debug-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/185540
Reviewed-by: Aske Simon Christensen <askesc@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
This CL changes the semantics of
`Pointer<T extends NativeType>.elementAt` and
`sizeOf<T extends NativeType>` to use the compile-time `T` rather than
the runtime `T`.
Issue: https://github.com/dart-lang/sdk/issues/38721
TEST=tests/ffi/data_test.dart
TEST=tests/ffi/sizeof_test.dart
TEST=tests/ffi/structs_test.dart
TEST=tests/ffi/vmspecific_static_checks_test.dart
Change-Id: Ifb25a4bd66d50a385d3db6dec9213b96dff21722
Cq-Include-Trybots: luci.dart.try:vm-precomp-ffi-qemu-linux-release-arm-try,analyzer-analysis-server-linux-try,analyzer-linux-release-try,analyzer-nnbd-linux-release-try,front-end-linux-release-x64-try,front-end-nnbd-linux-release-x64-try,benchmark-linux-try,dart-sdk-linux-try,pkg-linux-release-try,vm-ffi-android-release-arm-try,vm-ffi-android-release-arm64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/178200
Reviewed-by: Aske Simon Christensen <askesc@google.com>
This CL:
* Makes the standard filesystem more synchronous by default.
This makes reading files for normal compiles faster.
* Adds a more asynchronous version of `exists` and `readAsBytes`.
This potentially allows for reading files faster when in a context
where the files can actually be read in parallel. The client have
to make the choise though.
* Skips `Uri.base.resolveUri` when the uri has a scheme. This makes it
slightly faster in my tests, but does not remove any `.` and `..`.
Having those when having a scheme seems sort of weird though.
If this turns out to be a problem we can add it back.
* Re-orders what the standard filesystem checks in `exists` to assume files
which seems more likely to happen. This - for files - means less checks
and should make checking for existance faster. (This was noticed by Siggi).
Using the same measurement procedure as in
https://dart-review.googlesource.com/c/sdk/+/85442
timing how long fasta spends on *reading* files when compiling dart2js
(when compiling via the VM) I get a good speedup.
Note that the measurements are in microseconds:
Before this CL (run like `out/ReleaseX64/dart pkg/compiler/bin/dart2js.dart 2>&1 | grep "Read file (total)" | tail -n 1` 10 times):
Read file (total): 94678
Read file (total): 94232
Read file (total): 91726
Read file (total): 77472
Read file (total): 95582
Read file (total): 88113
Read file (total): 89245
Read file (total): 91575
Read file (total): 96291
Read file (total): 95730
With this CL (run like `out/ReleaseX64/dart pkg/compiler/bin/dart2js.dart 2>&1 | grep "Read file (total)" | tail -n 1` 10 times):
Read file (total): 68379
Read file (total): 69320
Read file (total): 72930
Read file (total): 69692
Read file (total): 68685
Read file (total): 73548
Read file (total): 64649
Read file (total): 71951
Read file (total): 73486
Read file (total): 70621
Difference at 95.0% confidence
-21138.3 +/- 4193
-23.111% +/- 4.5843%
(Student's t, pooled s = 4462.56)
Furthermore, using an internal benchmark (discussed in an email thread)
I get these numbers (note that the measurements are in milliseconds):
before:
4453
4249
4187
4190
4216
after:
2310
2379
2449
2467
2407
Difference at 95.0% confidence
-1856.6 +/- 131.443
-43.5924% +/- 3.08625%
(Student's t, pooled s = 90.1257)
Using the asynchronous versions of exists and readAsBytes and checking for
existance and reading in parallel on the same internal benchmark it gets to
1137
1185
1067
1089
1189
For completion, comparing to using "raw" `File` (again using the internal benchmark):
sequential standard
2377
2419
2485
2373
2431
sequential io_sync
2279
2182
2237
2312
2324
io_sync faster:
-150.2 +/- 76.3122
-6.21432% +/- 3.15731%
(Student's t, pooled s = 52.3245)
sequential standardasync
4865
4915
4753
5185
4760
sequential io_async
4746
4834
4989
4840
4891
No difference proven at 95.0% confidence
parallel standard
2526
2563
2652
2616
2685
parallel io_sync
2335
2184
2244
2341
2401
io_async faster
Difference at 95.0% confidence
-307.4 +/- 111.037
-11.785% +/- 4.25691%
(Student's t, pooled s = 76.1341)
parallel standardasync
1137
1185
1067
1089
1189
parallel io_async
1105
1088
1145
1048
1113
No difference proven at 95.0% confidence
TEST=Existing tests.
Change-Id: I8ba56ab0768df8672bcdb693782d3f1eec86b683
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/185101
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Gary Roumanis <grouma@google.com>
This CL changes `@pragma('vm:ffi:struct-fields', [...])` to
`@pragma('vm:ffi:struct-fields', _FfiStructLayout([...]))` which makes
it easier to add more data in subsequent CLs.
Extends `FindPragma` to allow returning multiple matched pragma's, so
that we can filter them. (In this case to avoid matching user-defined
pragma's that do not have an instance of the private class.)
Separated out from https://dart-review.googlesource.com/c/sdk/+/183640
because of the extra constant in existing expectation files.
Bug: https://github.com/dart-lang/sdk/issues/35763
Bug: https://github.com/dart-lang/sdk/issues/38158
TEST=tests/ffi(_2)/*_by_value_*_test.dart
Change-Id: Idef9f82e9b53c2a32dffabcec19669eae550fe2f
Cq-Include-Trybots: luci.dart.try:front-end-nnbd-mac-release-x64-try,front-end-linux-release-x64-try,vm-precomp-ffi-qemu-linux-release-arm-try,vm-kernel-nnbd-linux-debug-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/184181
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Clement Skau <cskau@google.com>
This is in preparation to migrate package:kernel to null safety.
For the visitor interfaces to support non-nullable return types, the
implementations must avoid using `null` as return value in its base case.
TEST=Refactoring
Change-Id: Ie8fa5d41b99850d9e4abb59634c72920c64128d9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/183691
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
This is in preparation to migrate package:kernel to null safety.
For the visitor interfaces to support non-nullable return types, the
implementations must avoid using `null` as return value in its base case.
TEST=Refactoring
Change-Id: Ie5e4153f8d3779d94957bb13b3d2d2a942040ff2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/179760
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
This CL changes the semantics of `Pointer<T extends Struct>.ref` to use
the compile-time `T` rather than the runtime `T`.
This enables tree shaking of subtypes of Struct and optimizing `.ref`.
Bug: https://github.com/dart-lang/sdk/issues/38721
TEST=tests/ffi/vmspecific_static_checks_test.dart
TEST=tests/ffi/*struct*test_.dart
Change-Id: Ie19bc3259d1cb721d0ce56d68e82d09dc3a4ad0e
Cq-Include-Trybots: luci.dart.try:analyzer-linux-release-try,analyzer-nnbd-linux-release-try,app-kernel-linux-debug-x64-try,dart-sdk-linux-try,front-end-nnbd-linux-release-x64-try,pkg-linux-debug-try,vm-kernel-linux-debug-x64-try,vm-kernel-nnbd-linux-debug-x64-try,vm-kernel-precomp-nnbd-linux-debug-x64-try,vm-kernel-reload-rollback-linux-debug-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/180190
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Aske Simon Christensen <askesc@google.com>
This rewrites `Pointer<Struct>.ref` and `Pointer<Struct>[]` calls in
the CFE to skip the runtime entry when the type argument is constant.
The runtime entry is still used when the type argument is generic.
Forcing the type argument to be constant and removing the runtime entry
will be done in follow up CLs.
Bug: https://github.com/dart-lang/sdk/issues/38721
Bug: https://github.com/dart-lang/sdk/issues/44621
Removing the runtime entry speeds up `.ref` significantly.
before: FfiStruct.FieldLoadStore(RunTime): 18868.140186915887 us.
after: FfiStruct.FieldLoadStore(RunTime): 270.5877976190476 us.
Measurements from Linux x64 in JIT mode.
Closes: https://github.com/dart-lang/sdk/issues/38648
TEST=tests/ffi/structs_test.dart
Change-Id: I82abd930b5a9c5c78a8999c2bc49802d67d37534
Cq-Include-Trybots: luci.dart.try:analyzer-linux-release-try,analyzer-nnbd-linux-release-try,app-kernel-linux-debug-x64-try,dart-sdk-linux-try,front-end-nnbd-linux-release-x64-try,pkg-linux-debug-try,vm-kernel-linux-debug-x64-try,vm-kernel-nnbd-linux-debug-x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-nnbd-linux-debug-x64-try,vm-kernel-reload-linux-debug-x64-try,vm-kernel-reload-rollback-linux-debug-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/182265
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Clement Skau <cskau@google.com>
Johnni Winther