In AOT mode, TFA turns optional arguments (named or positional) that are
always provided into required positional arguments and increases the
number of required arguments accordingly. Thus, from the standpoint of
the VM, whether it's reading in bytecode or kernel, these are just
regular fixed positional arguments. However, TFA originally left the
parameter flags alone for these parameters, so required named parameters
that were converted to positional arguments still had the required flag
set.
This CL does two things:
1. It fixes TFA to clear the required bit on a parameter if it is
converted from a named parameter to a required positional parameter.
2. It adds ASSERT()s and RELEASE_ASSERT()s on the VM side to ensure that
only named parameters have the required bit set.
Change-Id: I1c36d777a7e9e7d703bcc23ee1b798bffeffa29e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/157381
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
This CL adds support for unboxing of return values of getters and
therefore completes the work on unboxing support for normal members
(closures are still missing).
As with existing unboxing support for methods and setters, we utilize
TFA information to proof a getter will always return non-nullable
int/double.
We then make such a getter return unboxed int/double. If there are
dynamic calls to the getter a dyn:get:* forwarder will be created
which performs boxing of the return value.
Overall this reduces RX by eliminating BoxInt64 instructions. It
sometimes increases metadata due to more dyn:get:* function objects.
=> On our main size benchmark targets show no significant change.
Issue https://github.com/dart-lang/sdk/issues/40876
Change-Id: If7450ef7e5e3fc9c2e0eaa6b86ffa817699a7e17
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/154329
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Tess Strickland <sstrickl@google.com>
CFE adds signature members to classes based on the NNBD mode of
an enclosing library, so identical anonymous mixin applications
in libraries with different NNBD modes could end up being different.
This change fixes mixin deduplication transformation to take
NNBD mode of anonymous mixin applications into account.
Fixes https://github.com/dart-lang/sdk/issues/42656
Change-Id: Ib83ae55f8193177012fa1a592fecf381ca8fdbff
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/154164
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
List.generate could return both growable and fixed-size lists.
This change specializes invocations of List.generate when value of
'growable' argument is known (constant or omitted), so it becomes
possible to infer actual type returned by the factory.
This becomes more important with null safety as List.generate is used
more often to initialize lists of non-nullable elements.
Migrated NNBD benchmarks in AOT mode on x64:
Sudoku +11%
DartMicroBenchMM.{Min,Max}Lib +11-13%
DartMicroBenchMM.{Min,Max}Code +19-27%
ForInGeneratedLoop +19%
ForEachLoop +85%
ForInLoop +64%
ForLoop +680%
This change also includes test for inferred types of various List
constructors.
Change-Id: I801231b0a70e3aa8fb14ec9fe749f1dd420b1b9c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/153388
Reviewed-by: Aske Simon Christensen <askesc@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
If 'growable' argument of List.filled factory invocation is known at
compile time we can replace it with more specialized constructors
creating growable or fixed-size lists. This results in a more accurate
inferred type and more efficient code which uses the created list.
Fixes https://github.com/dart-lang/sdk/issues/42551
Change-Id: I427e1bdb8a0f2a83410a9533050d19cbca2d27d6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/153064
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Compared to assigning selector IDs purely by name, this improves the
packing of selector rows, reducing the in-memory size of the dispatch
table by typically around 20% (75k memory usage reduction for Flutter
Gallery on ARM64).
It also improved tree shaking of methods called (or rather, not called)
via dispatch table calls, reducing the total snapshot sizes of Flutter
benchmarks by up to 2.1% (Flutter Gallery: ARM 1.8%, ARM64 2.1%).
Fixes https://github.com/dart-lang/sdk/issues/40660
Fixes https://github.com/dart-lang/sdk/issues/41647
Change-Id: Ia9ecfb0818b301bcbad631c377f3910b0a5956de
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152323
Commit-Queue: Aske Simon Christensen <askesc@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
When getting a value from a field of covariant type we can apply
field guard summary which would narrow field type using the actual
type arguments of the receiver.
This results in more accurate types returned from widely used
iterators and for-in loops.
Doesn't affect Flutter gallery size in release mode.
Fixes https://github.com/dart-lang/sdk/issues/42413
Change-Id: I835756fb18a1fcbf055a43e4ece8b7539f1ba938
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/151889
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
This change introduces handling of protobufs while doing type flow
analysis. Metadata in protobuf message classes is updated dynamically
according to the set of called accessors, invalidating and rebuilding
TFA summaries as needed.
Previously, protobuf-aware tree shaker required the 2nd run of TFA
in order to do the actual tree-shaking after protobuf messages are
pruned. This significantly increases compilation time.
AOT compilation time of a large app (--from-dill): 274s -> 152s
New tree shaker is available in kernel compilers under the flag
--protobuf-tree-shaker-v2.
Issue https://github.com/dart-lang/sdk/issues/42442
Fixes https://github.com/dart-lang/sdk/issues/40785
Change-Id: I4347896737b9b0f7407b845e614dda9ba7621921
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152100
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Clement Skau <cskau@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
The partitioning has the property that for every reference from loading unit S to unit T, either
- the reference is through a deferred prefix, or
- T is guarenteed to be loaded before S
The partitioning is constructed by cutting the dominator tree of the library import graph at deferred imports. It is suboptimal if there are deferred imports to multiple libraries in a connected component, but the expected use case involves loading units with a single deferred entry.
Bug: https://github.com/dart-lang/sdk/issues/41974
Change-Id: I3c49044ae19112525f197b077b36e4ce874b81ac
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/151470
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
This CL introduces dart_api_dl.h which exposes a subset of dart_api.h
and dart_native_api.h for dynamic linking at runtime through the FFI.
Dynamic linking is done through including dart_api_dl.cc in a shared
library and passing NativeApi.initializeApiDLData to the init function.
This CL also includes Native API versioning to deal with possible
version skew between native api version against which native libraries
are compiled and the version in the DartVM the code is run on.
The subset of symbols in the CL includes handle related symbols, error
related symbols, handle scope symbols, and native port sumbols.
Design: http://go/dart-ffi-expose-dart-api
Closes: https://github.com/dart-lang/sdk/issues/40607
Closes: https://github.com/dart-lang/sdk/issues/36858
Closes: https://github.com/dart-lang/sdk/issues/41319
Closes: https://github.com/flutter/flutter/issues/46887
Closes: https://github.com/flutter/flutter/issues/47061
Misc:
Closes: https://github.com/dart-lang/sdk/issues/42260
Change-Id: I9e557808dbc99b341f23964cbddbb05f26d7a6c5
Cq-Include-Trybots: luci.dart.try:vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64-try,app-kernel-linux-debug-x64-try,vm-kernel-linux-debug-ia32-try,vm-kernel-win-debug-x64-try,vm-kernel-win-debug-ia32-try,vm-kernel-precomp-linux-debug-x64-try,vm-dartkb-linux-release-x64-abi-try,vm-kernel-precomp-android-release-arm64-try,vm-kernel-asan-linux-release-x64-try,vm-kernel-msan-linux-release-x64-try,vm-kernel-precomp-msan-linux-release-x64-try,vm-kernel-linux-release-simarm-try,vm-kernel-linux-release-simarm64-try,vm-kernel-precomp-android-release-arm_x64-try,vm-kernel-precomp-obfuscate-linux-release-x64-try,dart-sdk-linux-try,analyzer-analysis-server-linux-try,analyzer-linux-release-try,front-end-linux-release-x64-try,vm-kernel-precomp-win-release-x64-try,vm-kernel-mac-debug-x64-try,vm-precomp-ffi-qemu-linux-release-arm-try,vm-kernel-nnbd-linux-debug-x64-try,analyzer-nnbd-linux-release-try,front-end-nnbd-linux-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145592
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
This CL adds a Node.toText method together with an AstPrinter. These
facility and better toString implementation on AST nodes while allowing
for toString independent printing of AST to use in testing. This also
add support for an integrated toString of custom/internal nodes.
Some work is still needed in bringing the toString implementation on
all nodes to the old quality, and not all internal nodes have
customized textual representations yet. This work is left for future
CLs.
Change-Id: Ib0bf8a0bc02f489dfacdc8aa5f96da9c52f26058
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/150923
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
AOT transformations (mixin deduplication and TFA tree shaker) were
using CanonicalName.unbind() in order to make sure that kernel
writer will not be able to write dangling references to the deleted
classes or members (to detect such dangling references earlier).
This conflicts with lazy reading from a kernel file if --from-dill
option is used: lazy reader may read a reference to such class after
unbind() and it creates a new Reference object for such canonical name.
This causes crash later when the fresh Reference is used as it doesn't
have Class node filled in.
The solution is to avoid calling CanonicalName.unbind().
Instead, it is enough to nullify node.reference.canonicalName, which
won't break CanonicalName.reference used by lazy reader.
This crash can be reproduced on tests/language_2/vm/regress_flutter_55345_test.dart
if it is compiled in AOT mode using 2-step kernel generation.
Bug: b/158853113
Change-Id: Ib2004dbbbda85d9f56adc56b48882f4ef08869a7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/151120
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
This includes support for calling Dart_PropagateError in native code
when doing FFI calls, and catching uncaught exceptions with Dart_IsError
when doing FFI callbacks.
The support for Dart_PropagateError adds a catch entry to the FFI
trampoline, which prevents inlining these trampolines in AOT. This
regresses the FfiCall benchmarks by 1-2% in AOT.
In addition, Dart_PropagateError requires maintaining a bit whether we
entered native/VM code from generated code through FFI or not. That way
we can do the proper transition on the exception path. When entering
generated code, we store this bit on the stack, right after the entry
frame.
Design: http://go/dart-ffi-handles
Issue: https://github.com/dart-lang/sdk/issues/36858
Issue: https://github.com/dart-lang/sdk/issues/41319
Change-Id: Idfd7ff69132fb29cc730931a4113d914d4437396
Cq-Include-Trybots: luci.dart.try:vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64-try,app-kernel-linux-debug-x64-try,vm-kernel-linux-debug-ia32-try,vm-kernel-win-debug-x64-try,vm-kernel-win-debug-ia32-try,vm-kernel-precomp-linux-debug-x64-try,vm-dartkb-linux-release-x64-abi-try,vm-kernel-precomp-android-release-arm64-try,vm-kernel-asan-linux-release-x64-try,vm-kernel-linux-release-simarm-try,vm-kernel-linux-release-simarm64-try,vm-kernel-precomp-android-release-arm_x64-try,vm-kernel-precomp-obfuscate-linux-release-x64-try,dart-sdk-linux-try,analyzer-analysis-server-linux-try,analyzer-linux-release-try,front-end-linux-release-x64-try,vm-kernel-precomp-win-release-x64-try,vm-kernel-mac-debug-x64-try,vm-precomp-ffi-qemu-linux-release-arm-try,vm-kernel-nnbd-linux-debug-x64-try,analyzer-nnbd-linux-release-try,front-end-nnbd-linux-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145591
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Add a kernel transformation which removes redundant casts and reduces
some casts to null checks. This transformation assumes that type
system is sound and subtyping relation is transitive. So in NNBD weak
mode this transformation is always correct. In NNBD strong mode
this transformation is correct only if opted-out libraries are not
allowed.
The following patterns are handled:
If S <: T (this includes S <: T? in weak mode)
S x; x as T => x
If S <: T? in strong mode
S x; x as T => (x == null) ? x as T : x
This kernel transformation is not specific to the VM and can be reused
by other back-ends such as dart2js and DDC.
Fixes https://github.com/dart-lang/sdk/issues/40892
Issue https://github.com/dart-lang/sdk/issues/40893
Change-Id: I466ba96d763d5358011c768400c5225fa7bf5e67
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/139314
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
This enables adding the `external` keyword to struct fields, which
enables use in nnbd (weak mode).
Closes: https://github.com/dart-lang/sdk/issues/40247
External fields are not implemented in the analyzer yet:
https://github.com/dart-lang/sdk/issues/41940
Change-Id: I9d88acbdabf73ca63a6ad3d549930aa3c97cb53f
Cq-Include-Trybots: luci.dart.try: analyzer-nnbd-linux-release-try,dart2js-nnbd-linux-x64-chrome-try,ddc-nnbd-linux-release-chrome-try,front-end-nnbd-linux-release-x64-try,vm-kernel-nnbd-linux-debug-x64-try,vm-kernel-nnbd-linux-release-x64-try,vm-kernel-precomp-nnbd-linux-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/148242
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
For some types it makes sense to distinguish between nullability as a
property of including null and the declared nullability, such as for
type-parameter types and FutureOr types. This CL introduces the
separation between the two concepts. The plan is to use that when
implementing FutureOrType.
Bug: https://github.com/dart-lang/sdk/issues/40123
Change-Id: I90b45bea768e89c213d021d360a481d38377c682
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/147903
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Dmitry Stefantsov <dmitryas@google.com>
When building scopes, VM looks for variables using their names in the
current scope. If signature tree shaking is applied multiple times,
then we can end up with multiple #argN variables with the same names
in the same scope (in constructor initializer list). After that,
VM crashes when using the incorrect variable.
This change removes names from temporary variables introduced by
signature tree shaking in order to avoid these conflicts.
Currently, TFA (and signature tree shaking) is applied multiple times
only when protobuf-aware tree shaking is enabled, and this bug doesn't
appear without protobuf-aware tree shaking.
Bug: b/156025352
Change-Id: Icc4e39a22711cecc0b4399acdd266e2ca2276a3d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/147620
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
CFE may use anonymous mixin application classes in types after
applying LUB (Least Upper Bound) algorithm in conditional expressions,
and then those types can spread via type inference.
After anonymous mixin application classes are deduplicated, all
references to removed mixin applications from types should be
updated to point to the remaining mixin application.
Fixes https://github.com/flutter/flutter/issues/55345
Change-Id: I7860b2868cb153d125fec363c1653b7aa16521e6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145501
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Async transformation sometimes inserts additional unsafeCast calls in
order to make sure kernel AST is typed.
We can recognize these calls in TFA and handle them more accurately,
maintaining type flow through these native (and otherwise opaque) calls.
Change-Id: I3e316507e0a37f36dcf8a9621dbd7b342ce5f19d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/138661
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Adds another interface target to instance calls, pointing to the torn
off method for tearoff getter calls. This is then used to direct the
call to the method extractor for the method.
Increases the fraction of dynamically dispatched instance calls in
Flutter Gallery that are handled by the dispatch table from 95.8% to
98.4%. The remaining 92 IC calls are all on static receiver type
dynamic or Function (34 function calls, 22 method calls, 21 operator
calls, 14 getter calls and 1 setter call).
Change-Id: I0bde1a8271c8563f4631534bd39d1254cd779380
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/142155
Commit-Queue: Aske Simon Christensen <askesc@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
This relands commit ff34fd8110,
but puts tree shaking of write-only fields under the flag which is
disabled by default.
So far tree shaking was removing fields which are not used at all.
This change improves tree shaking of fields so fields
which are only written or used as interface targets can be removed.
The following limitations apply:
* Field is not removed if there is a constant object with that field, as
it may impact identity of constant objects which is an observable
behavior.
* Instance field is not removed if it has a non-trivial initializer as
it may have side-effects when executed by constructors.
* Late final fields are not removed, as writing such fields may have
side-effect.
* When field is removed, we may need to introduce an abstract getter
or abstract setter if field is used as a target of an interface call.
If a field was written, then setter would be non-abstract (but empty).
Issue https://github.com/dart-lang/sdk/issues/35310
Change-Id: Iec75b8301892664f4f955a01e5960b17e6620531
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/143286
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
This change contains the following fixes for NNBD strong mode in TFA:
* TypesBuilder.fromStaticType now correctly applies nullability of
TypeParameterType even if bound is non-nullable.
* UnknownType is introduced to represent a type argument not known at
compile time. Previously AnyType was used for that purpose, and it
could pass isSubtypeOfRuntimeType check for non-nullable Object type.
Fixes https://github.com/dart-lang/sdk/issues/41452
Change-Id: Ie836c99b38ad288aa68d9aae48e50844f9f949d5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/143310
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
The following test began passing:
dartkp-strong-linux-release-x64:language/nnbd/syntax/required_modifier_dynamic_error_test was fixed (RuntimeError -> Pass)
Change-Id: Id31547734d081f9a5ef4cd1ecf084495eeb3a9d8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/141763
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
So far the unboxing support in TFA disabled unboxing for natives and
relied on TFA inferring entrypoint parameters to be nullable (and
therefore boxed).
Though the added support for unboxing return values missed to explicitly
disable unboxing for return values of entry points.
=> This CL fixes that.
This is also a preparation for NNBD when parameters to entry points are not
necessarily nullable anymore.
Change-Id: Ia80a6acc8e803732b81665ebab14a9bfa720be22
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/140866
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Breaking change 40678 requires the constructors int.fromEnvironment and
String.fromEnvironment to get new default values for the named
parameter `defaultValue`. This CL changes usages of these constructors
such that they do not depend on the default value, such that it
becomes a non-breaking change for code in the SDK repo to perform the
change in sdk and in sdk_nnbd.
Change-Id: I82af0e1f92d6cd3618b65c0c50d754ae8c39eb0a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/140284
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
Reviewed-by: Leaf Petersen <leafp@google.com>
Commit-Queue: Erik Ernst <eernst@google.com>
With NNBD default List constructor is deprecated.
Instead, List.filled constructor is used to create lists of a particular
length, so List.filled is now used much more often.
This change adds VM-specific specialization for List.filled constructor
invocations when they are used to create lists filled with null.
Fixes https://github.com/dart-lang/sdk/issues/41104
Change-Id: I050549fd550acb8d62997b2b28c1f1e41ad3e0cc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/139952
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
When performing protobuf-aware treeshaking, we may generate a kernel
file which will later be used in conjunction with a non-transformed
platform kernel. In this case signature shaking is unsafe.
The original revision is in patchset 1.
This reverts commit b59dad38df.
Change-Id: I1a85e42f245fcdbd821fa1f07b2e9966b8c2d958
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/139100
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
In order to have instance calls with unboxed parameters, all
the possible targets need to be able to those parameters unboxed.
Then, the methods were partitioned according to the class hierarchy,
and the inferred types from TFA are used to determine the parameters
that could be unboxed.
This is done for non-nullable integer and double parameters, and
return value.
dart-aot linux x64:
Bench2D 8.028%
DeltaBlue 4.688%
ParticleSystemPaint 27.79%
Flutter release android-armv8:
velocity_tracker_bench -2.026% (less is better)
flutter_gallery_total_size -0.1460%
flutter_gallery_instructions_size -0.2715%
flutter_gallery_readonlydata_size 0.0539%
Issue https://github.com/dart-lang/sdk/issues/33549
Change-Id: Iedd9b4321c3d78b406ea1708e15c747754433027
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/138501
Commit-Queue: Victor Agnez Lima <victoragnez@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Samir Jindel <sjindel@google.com>
Static methods and constructors may receive unboxed parameters.
This change adds a bitmap to the RawFunction object indicating
which parameters are unboxed and their types. Also, the stack frame
bitmap was updated to include new bits for those parameters.
The ArgumentsDescriptor object was updated to store not only the number
of arguments, but also their size, since 32-bit platforms would use two
words for each int64 and double value.
In addition, static methods that return non-nullable integers
and doubles may return these values unboxed.
Dart AOT x64:
TypedData.Uint8ClampedListViewVarBench +11.73%
DeltaBlue +9.32%
Meteor (Intel Xeon) +4.64%
Flutter release android-armv8:
velocity_tracker_bench -2.32% (less is better)
flutter_gallery_readonlydata_size +0.18%
flutter_gallery_total_size +0.13%
flutter_gallery_instructions_size +0.12%
Issue https://github.com/dart-lang/sdk/issues/33549
Change-Id: I97e310f8f30213920af2333fbdedf193d03db5c3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/135313
Commit-Queue: Victor Agnez Lima <victoragnez@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Aske Simon Christensen