Commit Graph

115 Commits

Author SHA1 Message Date
Johnni Winther fdc765faad [cfe] Make TypeParameter.defaultType non-nullable
TEST=existing

Change-Id: I0a8fdf09f742b55357411f12dc6164d4050bb83c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196283
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
2021-04-21 13:51:50 +00:00
Johnni Winther d8f2b7cc44 [kernel] Make .function non-nullable on Procedure, Constructor, and LocalFunction
TEST=existing

Change-Id: I4d0ae16291414e58207b7de0466d989d27997619
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/195074
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
2021-04-14 08:17:28 +00:00
Tess Strickland e7d3a6027c [vm] Create more Function helper methods for code clarity.
Creates HasParent() as a predicate for Function objects with a non-null
parent function and makes IsLocalFunction() specific to local closures
(i.e. explicit closures with non-null parent functions).

Creates HasSavedArgumentsDescriptor() as a predicate to determine when
saved_args_desc() can be used, to avoid the caller having to do explicit
predicate checks for each dispatcher type that contains one.

Also simplifies Function::PrintName, creates different suffixes for a
SyncGenClosureMaker and its associateed SyncGenClosure, adds suffixes
for skipping more than one generated body when printing the parent name,
and changes ArgumentsDescriptor::PrintTo to match the compact syntax
Function::PrintName used for signifying the arguments descriptor for
certain dispatchers.

TEST=pkg/vm_snapshot_analysis/test/instruction_sizes_test

Cq-Include-Trybots: luci.dart.try:app-kernel-linux-release-x64-try,vm-kernel-precomp-linux-release-x64-try,pkg-linux-release-try
Change-Id: I0ac1226d1ffe1d81743b5c6788da170d5a4010c5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191560
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
2021-03-23 12:21:26 +00:00
Daco Harkes fbaf439b75 [vm/ffi] Fix ScopeBuilder uninitialized read
Closes: https://github.com/dart-lang/sdk/issues/45362

TEST=MSAN build

Change-Id: Ic51eba97b94656e75261001134e75db2fd2e352d
Cq-Include-Trybots: luci.dart.try:vm-kernel-msan-linux-release-x64-try,vm-kernel-precomp-msan-linux-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191882
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2021-03-18 12:37:48 +00:00
Alexander Markov bed0589676 [vm] Fix access to parameters in async closure body inside field initializer
For async closure parsed_function_ could be an outer function
which is unrelated to the closure. So, ScopeBuilder should not
attempt to mark parameters of parsed_function_ with
set_is_forced_stack() if it sees kSyncYielding FunctionNode.
Parameter variables might not be even allocated if
async closure is used inside an instance field initializer
and parsed_function_ is a constructor.

TEST=runtime/tests/vm/dart/regress_45306_test.dart
Fixes https://github.com/dart-lang/sdk/issues/45306

Change-Id: I1b0082cb0e217039c43f19b35d77190493069edc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191325
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2021-03-17 19:17:05 +00:00
Johnni Winther 01b0947a6d [kernel] Update kernel encodings
* Add InstanceGetterInvocation for getter/field invocation in web
  backends
* Add localFunction getter to LocalFunctionInvocation
* Remove isNot from EqualsCall and EqualsNull - the encoding didn't
  carry its weight.
* Remove uses of Name.name
* Remove BottomType code from VM

TEST=existing

Change-Id: I99d05d35b9ef193d092cc151c99ad472dbd60834
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/188725
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
2021-03-08 11:29:51 +00:00
Johnni Winther 6ce8d74761 [cfe] Add Function.futureValueType and serialize Let.fileOffset
Serializing Let.fileOffset supports positions in stacktraces resulting
from null aware expressions, like `if (o?.foo) ...` when `o` is `null`.

Adding Function.futureValueType supports the proper backend
implementation for the fix in
https://dart-review.googlesource.com/c/sdk/+/181303

Closes #44654

TEST=existing

Change-Id: Ie5939a248d3d8bf41388e8f435e4ba4195afeabd
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/182269
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
2021-02-04 14:06:47 +00:00
Ryan Macnak b1c09ecd8f [vm] Make naming more consistent when converting between handles, tagged and untagged pointers.
Currently we have things called XPtr which are not what you get from ptr().

Old world:
handle->raw() returns RawObject* (tagged)
raw_obj->ptr() returns RawObject* (untagged)

After 6fe15f6df9:
handle->raw() returns ObjectPtr
obj_ptr->ptr() returns ObjectLayout*

New world:
handle->ptr() returns ObjectPtr
obj_ptr->untag() returns UntaggedObject*

TEST=ci
Change-Id: I6c7f34014cf20737607caaf84979838300d12df2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149367
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2021-01-15 23:32:02 +00:00
Regis Crelier b3bca1821c [VM/runtime] Decouple representation of function signatures from Function objects.
This fixes issue https://github.com/dart-lang/sdk/issues/43088

This CL improves on https://dart-review.googlesource.com/c/sdk/+/166920 by keeping the names of type parameters.

See go/dart-vm-signatures for motivation for this change.

TEST=existing suites

Change-Id: Ia82f1d322f72d07b2fb253cf914f9b868025c71e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/176981
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2021-01-07 23:45:37 +00:00
Martin Kustermann 897b1a2121 [vm/concurrency] Move osr/field-guard related state from Isolate to IsolateGroup
As part of making the compiler independent of `Isolate` we have to move
various state from `Isolate` to `IsolateGroup`.

This CL moves osr/field-guard related state.

TEST=Pure refactoring - relying on existing test coverage.

Issue https://github.com/dart-lang/sdk/issues/36097

Change-Id: Id943891476f892f64f2a74952681270d012a4693
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/177125
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2021-01-06 13:32:10 +00:00
Tess Strickland f6e4b77f6a [vm] Remove the only cases where TokenPositions are mutated.
The Next() method on TokenPositions used to increment the internal
value_ field, but now creates a new TokenPosition with value_ + 1.

There are only three places this is used:

* Getting the token position after the end token position for
  implicit closure functions in the scope builder.

* Getting the token position after the end token position for
  variable declarations in the scope builder.

* Iterating over the token positions on a single source line in
  the debugger.

So the overhead of creating new TokenPositions vs. mutating the original
should be limited, compared to the benefit of being able to assume
TokenPosition values are constant once created. There's too much
dependence on the copy and copy assignment operators due to the previous
possibility of mutation to make the internal field constant at the
moment without much more sweeping changes, unfortunately.

Also remove the copy assignment in initializing TokenPosition constants.

TEST=Tested using existing tests on trybots.

Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-nnbd-linux-debug-x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-nnbd-linux-debug-x64-try,vm-kernel-linux-debug-x64-try,vm-kernel-linux-release-x64-try,vm-kernel-nnbd-linux-release-x64-try,vm-kernel-precomp-linux-release-x64-try,vm-kernel-precomp-nnbd-linux-release-x64-try,vm-kernel-linux-product-x64-try,vm-kernel-precomp-linux-product-x64-try
Change-Id: Ie18b7f45bd9c6a43647ecd189330d91a4dff373b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/174922
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Clement Skau <cskau@google.com>
2020-12-03 12:40:28 +00:00
Tess Strickland 52930fe2b9 [vm/compiler] Do not perform non-covariant checks in FFI trampolines.
Since they are accessed via closures, dynamic calls are handled via
dynamic closure call dispatchers and so no non-covariant argument
checking remains at this point.

TEST=Existing FFI tests on trybots, also added a few dynamic cast
tests just in case.

Bug: https://github.com/dart-lang/sdk/issues/44343

Cq-Include-Trybots: luci.dart.try:vm-precomp-ffi-qemu-linux-release-arm-try,vm-ffi-android-product-arm64-try,vm-ffi-android-product-arm-try
Change-Id: If8daa2d71de4e9391dd35b31b62b67a8e7e69ffe
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/174463
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
2020-12-01 16:01:15 +00:00
Clement Skau 2d36c85ff8 [vm] Removes support for --causal-async-stacks
All existing embedders have been opted into --lazy-async-stacks, the
VM also uses it as it's default in all configurations.

After this CL, any user of --causal-async-stacks will get an error
message when trying to use it.
=> In any such case, please simply remove the flag.

TEST=Exhaustive CQ.

Bug: https://github.com/dart-lang/sdk/issues/37668
Change-Id: Ia440afcf2dba464aa8b8cf381b93bbac8eb9f8dc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/172564
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Clement Skau <cskau@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-12-01 07:27:14 +00:00
Tess Strickland 3b9b77964d Reland "[vm/compiler] Move AssertAssignables out of closure bodies."
This is a reland of 42c76fd910

Main issue was due to the parameter order of the invoke field dispatcher
not matching the argument order described by its saved arguments
descriptor. There's no reason for it not to, so now it does.

Also fixes some issues with stack trace tests that failed due to
increased deduplication of closures by forbidding deduplication for
those tests.

TEST=Run on trybots of all architectures as well as flutter engine
trybot, new test added for downstream issues seen after initial landing.

Original change's description:
> [vm/compiler] Move AssertAssignables out of closure bodies.
>
> This CL moves the final set of checks out of closure bodies and into
> dynamic closure call dispatchers.  It also adds stubs for checking top
> types and null assignability for types only known at runtime.
>
> Fixes https://github.com/dart-lang/sdk/issues/40813 .
>
> Changes in Flutter gallery in release mode:
>
> * arm7: -3.05% total, +0.99% vmisolate, -0.89% isolate,
>         -1.20% readonly, -4.43% instructions
> * arm8: -3.20% total, +0.99% vmisolate, -0.88% isolate,
>         -1.18% readonly, -5.05% instructions
>
> TEST=Run on trybots of all architectures, includes test adjustments where needed.
>
> Cq-Include-Trybots: luci.dart.try:vm-kernel-linux-debug-x64-try,vm-kernel-nnbd-linux-debug-x64-try,vm-kernel-linux-debug-ia32-try,vm-kernel-nnbd-linux-debug-ia32-try,vm-kernel-precomp-linux-debug-simarm_x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-nnbd-linux-debug-simarm_x64-try,vm-kernel-precomp-nnbd-linux-debug-x64-try,vm-kernel-linux-release-simarm-try,vm-kernel-linux-release-simarm64-try,vm-kernel-nnbd-linux-release-simarm-try,vm-kernel-nnbd-linux-release-simarm64-try,vm-kernel-precomp-linux-release-simarm-try,vm-kernel-precomp-linux-release-simarm64-try,vm-kernel-precomp-nnbd-linux-release-simarm64-try
> Change-Id: Ifb136c64339be76a642ecbb4fda26b6ce8f871f9
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/166622
> Commit-Queue: Tess Strickland <sstrickl@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>
> Reviewed-by: Régis Crelier <regis@google.com>

Change-Id: Ic5ec59cf355f7779bb82db798d97d762ba1e5556
Cq-Include-Trybots: luci.dart.try:vm-kernel-linux-debug-x64-try,vm-kernel-nnbd-linux-debug-x64-try,vm-kernel-linux-debug-ia32-try,vm-kernel-nnbd-linux-debug-ia32-try,vm-kernel-precomp-linux-debug-simarm_x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-nnbd-linux-debug-simarm_x64-try,vm-kernel-precomp-nnbd-linux-debug-x64-try,vm-kernel-linux-release-simarm-try,vm-kernel-linux-release-simarm64-try,vm-kernel-nnbd-linux-release-simarm-try,vm-kernel-nnbd-linux-release-simarm64-try,vm-kernel-precomp-linux-release-simarm-try,vm-kernel-precomp-linux-release-simarm64-try,vm-kernel-precomp-nnbd-linux-release-simarm64-try,vm-kernel-precomp-linux-product-x64-try,vm-kernel-linux-product-x64-try,flutter-engine-linux-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/172644
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-11-18 22:42:31 +00:00
Tess Strickland 7555f5fe63 Revert "[vm/compiler] Move AssertAssignables out of closure bodies."
This reverts commit 42c76fd910.

Reason for revert: Failures in flutter/google3. Initial hypothesis is related to product mode and instruction deduplication.

Original change's description:
> [vm/compiler] Move AssertAssignables out of closure bodies.
>
> This CL moves the final set of checks out of closure bodies and into
> dynamic closure call dispatchers.  It also adds stubs for checking top
> types and null assignability for types only known at runtime.
>
> Fixes https://github.com/dart-lang/sdk/issues/40813 .
>
> Changes in Flutter gallery in release mode:
>
> * arm7: -3.05% total, +0.99% vmisolate, -0.89% isolate,
>         -1.20% readonly, -4.43% instructions
> * arm8: -3.20% total, +0.99% vmisolate, -0.88% isolate,
>         -1.18% readonly, -5.05% instructions
>
> TEST=Run on trybots of all architectures, includes test adjustments where needed.
>
> Cq-Include-Trybots: luci.dart.try:vm-kernel-linux-debug-x64-try,vm-kernel-nnbd-linux-debug-x64-try,vm-kernel-linux-debug-ia32-try,vm-kernel-nnbd-linux-debug-ia32-try,vm-kernel-precomp-linux-debug-simarm_x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-nnbd-linux-debug-simarm_x64-try,vm-kernel-precomp-nnbd-linux-debug-x64-try,vm-kernel-linux-release-simarm-try,vm-kernel-linux-release-simarm64-try,vm-kernel-nnbd-linux-release-simarm-try,vm-kernel-nnbd-linux-release-simarm64-try,vm-kernel-precomp-linux-release-simarm-try,vm-kernel-precomp-linux-release-simarm64-try,vm-kernel-precomp-nnbd-linux-release-simarm64-try
> Change-Id: Ifb136c64339be76a642ecbb4fda26b6ce8f871f9
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/166622
> Commit-Queue: Tess Strickland <sstrickl@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>
> Reviewed-by: Régis Crelier <regis@google.com>

TBR=kustermann@google.com,regis@google.com,sstrickl@google.com

Change-Id: Iaf79acddcf18fb3699a894950b31515d6f759349
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/172643
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Tess Strickland <sstrickl@google.com>
2020-11-18 08:17:21 +00:00
Tess Strickland 42c76fd910 [vm/compiler] Move AssertAssignables out of closure bodies.
This CL moves the final set of checks out of closure bodies and into
dynamic closure call dispatchers.  It also adds stubs for checking top
types and null assignability for types only known at runtime.

Fixes https://github.com/dart-lang/sdk/issues/40813 .

Changes in Flutter gallery in release mode:

* arm7: -3.05% total, +0.99% vmisolate, -0.89% isolate,
        -1.20% readonly, -4.43% instructions
* arm8: -3.20% total, +0.99% vmisolate, -0.88% isolate,
        -1.18% readonly, -5.05% instructions

TEST=Run on trybots of all architectures, includes test adjustments where needed.

Cq-Include-Trybots: luci.dart.try:vm-kernel-linux-debug-x64-try,vm-kernel-nnbd-linux-debug-x64-try,vm-kernel-linux-debug-ia32-try,vm-kernel-nnbd-linux-debug-ia32-try,vm-kernel-precomp-linux-debug-simarm_x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-nnbd-linux-debug-simarm_x64-try,vm-kernel-precomp-nnbd-linux-debug-x64-try,vm-kernel-linux-release-simarm-try,vm-kernel-linux-release-simarm64-try,vm-kernel-nnbd-linux-release-simarm-try,vm-kernel-nnbd-linux-release-simarm64-try,vm-kernel-precomp-linux-release-simarm-try,vm-kernel-precomp-linux-release-simarm64-try,vm-kernel-precomp-nnbd-linux-release-simarm64-try
Change-Id: Ifb136c64339be76a642ecbb4fda26b6ce8f871f9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/166622
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
2020-11-17 22:05:18 +00:00
Johnni Winther 1930c07cd7 [cfe] Add flags to MethodInvocation and fileEndOffset to Block
The CL add a 'flags' to MethodInvocation with the properties isInvariant
and isBoundsSafe. The former is used for to marks safe calls in unified
collection encoding. Both can be used further by backends.

The CL also adds a 'fileEndOffset' to Block. This is current set for
block declared in used code.

In response to https://github.com/dart-lang/sdk/issues/43994
and https://github.com/dart-lang/sdk/issues/43965

Change-Id: I579fc2928331465dfc2c152ccfd21297b12cfdd3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/170695
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2020-11-09 07:36:44 +00:00
Clement Skau 27ca552ddb [SDK] Replaces async's _AsyncAwaitCompleter with _Future.
Run time (less is better) impact:
dart:
- Calls.AwaitAsyncCall  -43.95% ~ -55.50%
- Calls.AwaitAsyncCallClosureTargetPolymorphic  -40.33% ~ -53.58%
- Calls.AwaitAsyncCallInstanceTargetPolymorphic  -42.69% ~ -55.65%
- Calls.AwaitFutureOrCallInstanceTargetPolymorphicManyAwaits  -42.05% ~ -56.14%
- Calls.Await...  0% ~ -13%
dart-aot:
- Calls.AwaitAsyncCall  -9.748% ~ -11.13%
- Calls.AwaitAsyncCallClosureTargetPolymorphic  -8.673% ~ -13.19%
- Calls.AwaitAsyncCallInstanceTargetPolymorphic  -9.799% ~ -11.74%
- Calls.AwaitFutureOrCallInstanceTargetPolymorphicManyAwaits  -5.412% ~ -13.43%

Code size impact:
- flutter_gallery_app_so_brotli_size  -0.1237% ~ -0.2410%
- flutter_gallery_readonlydata_size  0.1693% ~ 0.2041%
- flutter_gallery_instructions_size  0.1157% ~ 0.1779%
- flutter_gallery_total_size  0.1021% ~ 0.1413%

Bug: https://github.com/dart-lang/sdk/issues/39119
Change-Id: I64d28a8bea078277946d7be43737e265920c8f16
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/126322
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-11-05 09:51:13 +00:00
Alexander Markov 7588ed86de Remove bytecode mode from the VM
Change-Id: Ief167b7ffc128105a03cc225ab750234c9a6a7a0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/169147
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2020-10-28 17:42:35 +00:00
Clement Skau c486a07b02 [VM] Fixes yield* exception handling in sync*.
This adds a mechanism similar to that used in async functions where
exceptions are caught in the synthetic code and passed into the
generated body to be rethrow'n.
This ensures the exception is throw'n from the same place as the
original yield*, as per the spec.

Bug: https://github.com/dart-lang/sdk/issues/42466
Change-Id: I054b9db568a49b046b6bb49f3e775bf093f83950
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/160221
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2020-10-27 06:46:27 +00:00
Tess Strickland d9685d1c4c [vm/compiler] Move type argument type checks out of closure bodies.
These checks are now performed in the dynamic closure call dispatcher.
To avoid having to create type argument vectors (TAVs) for default type
arguments at runtime, we cache a compile-time created TAV in the
ClosureData for the closure function which is retrieved by the
dispatcher when needed.

We also keep an associated packed field of information that can also be
determined at compile time:

* Whether the cached TAV needs instantiation or can share its
  instantiator or function type arguments.

* The number of parent type parameters.

The former allows the generated IL to keep the invariant that the
InstantiateTypeArguments instruction (and the runtime entry it calls) is
only used for uninstantiated TAVs.

Also changes the destination name to an Value input for the
AssertSubtype instruction and adds handling for non-constant types and
names in that instruction's backend.

Additional changes:

* Adds new slots for ClosureData, Function, and TypeArguments.

* Adds a new kUnboxedUint8 representation (needed for
  TypeParameterLayout::flags_, which is of type uint8_t).

  * Extends LoadField to handle uint8_t unboxed native fields.

  * Adds BoxUint8 for boxing unboxed uint8_t values.

Code size impact on Flutter gallery in release mode:

* arm7: total +0.08%, vmisolate: +0.56%, isolate: +0.42%,
        readonly: -0.04%, instructions: -0.03%

* arm8: total +0.12%, vmisolate: +0.56%, isolate: +0.42%,
        readonly: -0.002%, instructions: +0.03%

Cq-Include-Trybots: luci.dart.try:vm-kernel-linux-debug-ia32-try,vm-kernel-linux-debug-x64-try,vm-kernel-nnbd-linux-debug-ia32-try,vm-kernel-nnbd-linux-debug-x64-try,vm-kernel-precomp-linux-debug-simarm_x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-nnbd-linux-debug-simarm_x64-try,vm-kernel-precomp-nnbd-linux-debug-x64-try,vm-kernel-linux-release-simarm-try,vm-kernel-linux-release-simarm64-try,vm-kernel-nnbd-linux-release-simarm-try,vm-kernel-nnbd-linux-release-simarm64-try,vm-kernel-precomp-linux-release-simarm-try,vm-kernel-precomp-linux-release-simarm64-try,vm-kernel-precomp-nnbd-linux-release-simarm64-try
Bug: https://github.com/dart-lang/sdk/issues/40813
Change-Id: I5a7de27a17e3119e27752bd0d10e1c6bc1b52a16
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/158844
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
2020-10-26 18:48:18 +00:00
Anna Gringauze f04bc85e4f Refined scope calculation in expression compiler
- make sure nested blocks scopes are visited
- make sure variable definitions do not leak beyond block scopes
- properly collect scopes for loops, if statements, constructors
- add calculation of fileEndOffsets for blocks
- save block file offsets to dill
  - update binary format version
  - change kernel readers and writers to read and write block offsets
  - change vm readers to read and block offsets for new version
- add missing fileOffsets and fileEndOffsets on functions for
  late fields
- add missing fileOffsets and fileEndOffsets on functions for
  extensions
- add errors on failures to find scope
- find libraries for private fields correctly
- add more expression compilation tests
- add test to verify fileOffsets and fileEndOffsets are set for
  SDK summary (will add full dill tests later)

Closes: https://github.com/dart-lang/sdk/issues/40278
Related: https://github.com/dart-lang/sdk/issues/34942

Change-Id: I5bc1bb645543045b689d8d61069ee77dc4ee9025
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/167541
Commit-Queue: Anna Gringauze <annagrin@google.com>
Reviewed-by: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2020-10-20 01:44:52 +00:00
Johnni Winther 8b07d1902c [kernel] Remove DirectPropertyGet/DirectPropertySet/DirectMethodInvocation
These nodes are no longer used.

Change-Id: I40c8df7376f0c40a4122c22d934fb3c6f6fd520d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/165902
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2020-10-03 19:15:41 +00:00
Aske Simon Christensen 68fd2a9d52 [vm/jit] Pessimize type assumption in LoadLocal of covariant parameter.
This avoids unsound optimizations that could arise from loading a
parameter before its type had been checked.

Affects only unoptimized code.

Fixes https://github.com/dart-lang/sdk/issues/43464

Some considerations for a cleaner fix are described in
https://github.com/dart-lang/sdk/issues/43654

Change-Id: I05872e46495313e82e9c516e5f283e1bc4612300
Cq-Do-Not-Cancel-Tryjobs: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/164500
Commit-Queue: Aske Simon Christensen <askesc@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-10-02 16:17:58 +00:00
Daco Harkes a7fa63493f [cfe] Give external field generated setters parameter names
The setters generated from external fields used not have a name.
This broke the assumptions in the VM when making stack traces.

Separated out from https://dart-review.googlesource.com/c/sdk/+/140290.

Issue: https://github.com/dart-lang/sdk/issues/43533

Change-Id: I1816557eff891eaa7c531db1f4239159c66c325c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/164093
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
2020-09-23 22:42:09 +00:00
Ryan Macnak 30897929fc [vm] Fix warnings in GCC 9.3.0 and XCode 12.0.
Bug: https://github.com/flutter/flutter/issues/66203
Change-Id: Ifff0c211e2ecdcb56d62c273a471fc05bbae9c37
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/161602
Reviewed-by: Chinmay Garde <chinmaygarde@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2020-09-21 22:02:32 +00:00
Tess Strickland 3d77741666 [vm/compiler] Unify name checking in dynamic closure call dispatchers.
Instead of possibly looping over the closure function parameter names
array multiple times, just do it once. Check each entry against the
provided argument names. If none match, check the required bit (if in
null-safe mode). Also keep a count of matched names to check that all
provided names matched after the iteration.

Now that optional name checking is part of the fragment built by
BuildClosureCallArgumentsValidCheck, that method builds checks for
exactly the same things as its namesake in Function.

Also refactor the variables used by the checker into read/write ones
that need to be allocated in the parsed function and read-only ones
that can just be temporaries since no Phi nodes are needed.

Cq-Include-Trybots: luci.dart.try:vm-kernel-linux-release-x64-try,vm-kernel-precomp-linux-product-x64-try,vm-kernel-linux-debug-x64-try,vm-kernel-precomp-linux-release-simarm_x64-try,vm-kernel-linux-release-simarm-try,vm-kernel-linux-release-simarm64-try
Bug: https://github.com/dart-lang/sdk/issues/40813
Change-Id: I3cb421dd538629d7f5499f3bbf0653d34b850dce
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/160725
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
2020-09-10 07:12:14 +00:00
Clement Skau 4db081545e Revert "[VM] Fixes yield* exception handling in sync*."
This reverts commit 358aee331b.

Reason for revert: Appears to break service/async_generator_breakpoint_test

Original change's description:
> [VM] Fixes yield* exception handling in sync*.
> 
> This adds a mechanism similar to that used in async functions where
> exceptions are caught in the synthetic code and passed into the
> generated body to be rethrow'n.
> This ensures the exception is throw'n from the same place as the
> original yield*, as per the spec.
> 
> Bug: https://github.com/dart-lang/sdk/issues/42466
> Change-Id: I553dd89141985f6f30751913a1c8a62b1229af04
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/158543
> Commit-Queue: Clement Skau <cskau@google.com>
> Reviewed-by: Vyacheslav Egorov <vegorov@google.com>

TBR=vegorov@google.com,cskau@google.com

Change-Id: I9df83543d41d4260e91e4a7fb8df7c2762b92429
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: https://github.com/dart-lang/sdk/issues/42466
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/160101
Reviewed-by: Clement Skau <cskau@google.com>
Commit-Queue: Clement Skau <cskau@google.com>
2020-08-25 14:08:42 +00:00
Clement Skau 358aee331b [VM] Fixes yield* exception handling in sync*.
This adds a mechanism similar to that used in async functions where
exceptions are caught in the synthetic code and passed into the
generated body to be rethrow'n.
This ensures the exception is throw'n from the same place as the
original yield*, as per the spec.

Bug: https://github.com/dart-lang/sdk/issues/42466
Change-Id: I553dd89141985f6f30751913a1c8a62b1229af04
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/158543
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2020-08-25 12:40:49 +00:00
Tess Strickland 787446213c [vm/compiler] Move argument shape (not type) checks out of closures.
This CL performs the following checks in the invoke field dispatcher for
dynamic closure calls when lazy dispatchers are enabled:

* The provided function type arguments vector (if any) has the correct
  length.

* No function type arguments should be provided if the closure has
  delayed type arguments.

* All required arguments (positional in all modes, named in appropriate
  null safety modes) have been provided by the caller.

* If there are optional positional arguments, an appropriate number
  has been provided.

* If there are optional named arguments, their names are valid.

Since the runtime already handles checking the argument shapes when lazy
dispatchers are disabled, these checks are now completely removed from
closure bodies in all cases. Thus, the only remaining checks in closure
bodies are the type checks performed by AssertSubtype and
AssertAssignable when lazy dispatchers are enabled.

Changes in the Flutter Gallery:

* ARM7, release: -3.61% instructions, -2.19% total
* ARM7, sizeopt: -3.62% instructions, -2.55% total
* ARM8, release: -3.66% instructions, -1.98% total
* ARM8, sizeopt: -3.65% instructions, -2.37% total

Most of these changes are already exercised by existing tests such as
(but not limited to):

* corelib{,_2}/dynamic_nosuchmethod_test
* language{,_2}/call/call_test
* language{,_2}/closure/tearoff_dynamic_test
* language{,_2}/generic/function_bounds_test
* language{,_2}/parameter/named_with_conversions_test
* language{,_2}/vm/no_such_args_error_message_vm_test

I've added one test to specifically check the interaction between
dynamic calls and required named parameters. There is some coverage in
other NNBD tests, but those are not directly focused on testing this
specifically.

Other changes:

* Adds initial cached ranges for certain BinarySmiOp and ShiftIntegerOp
  instructions when the RHS is a constant, to avoid false negatives for
  deoptimization and throw checks prior to range analysis.

* Adds new slots for various Function fields.

* Adds the ability to define unboxed native slots, which are always
  unboxed after retrieval even in unoptimized code. In the first
  iteration, the backend only handles loads from Uint32 unboxed native
  slots. Part of https://github.com/dart-lang/sdk/issues/42793.

* Removed the special handling for loading from non-nullable int fields
  in AOT compilation. Instead, their treatment is unified with the
  treatment of the new unboxed native fields, since the source field is
  always unboxed and the result of the load is also always unboxed, as
  code involving them is always optimized.

Bug: https://github.com/dart-lang/sdk/issues/40813
Change-Id: Ia02aa3e872c1fefd906fd67b55021ea1797556e4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/155604
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2020-08-17 08:58:08 +00:00
Johnni Winther 65e48e423a [cfe] Add a member signature origin to member signatures
Adds a member signature origin to member signatures and includes
an additional reference to these in MethodInvocation, PropertyGet,
PropertySet, etc.

This enables the VM to bypass the member signatures when loading the
AST.

Change-Id: I5cae11f4434bc052d0ba0acf0670dd002c6f3df1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/157498
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2020-08-11 08:16:59 +00:00
Martin Kustermann fd959b824e [vm/compiler] Graph intrinsify implicit getters/setters in common cases.
To make implicit getters/setters frameless in common cases we use graph
intrinsics. We do this for boxed as well as unboxed fields. We do this
only for simple cases (e.g. not if field guards or possible boxing are
involved).

It also removes the hand-written assembly intrinsics for the getters,
which avoids bugs if boxing-state of field is not the same as
boxing-state of setter/getter.

Issue https://github.com/dart-lang/sdk/issues/40876

Change-Id: Id3bd7842ead0278fee61d4a21c8661ce18dbccee
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/155900
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Aske Simon Christensen <askesc@google.com>
Reviewed-by: Tess Strickland <sstrickl@google.com>
2020-07-29 14:49:45 +00:00
Clement Skau 6ca00d12c0 [VM] Adds Future.wait support for --lazy-async-stacks.
- Makes Future.wait a recognised function, and asserts its chained
future, _future is allocated at a known index in the context.
- Adds logic to locate, extract the chained future during lazy async
stack unwinding.
- Adds tests for the Future.wait async case.
- Minor consistency nits, comments.

This change is similar to a previous CL, adding Future.timeout support:
https://dart-review.googlesource.com/c/sdk/+/152328

Change-Id: I7439750968595d25d7bbac0068ad64fcc891e176
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/155420
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-07-28 05:41:01 +00:00
Tess Strickland bb24f76c72 [vm] Reland "Remove non-covariant checks from closure bodies (part 1)"
Also relands the followup CLs:
"Perform non-covariant checks when dynamically invoking callables."
"Use AreValidArguments so that names are checked as well."

Original description of first CL:

This change only affects compilation when running in non-precompiled
mode with --no-lazy-dispatchers enabled.

Instead of always compiling in non-covariant checks, even for closures
not called dynamically, remove the non-covariant checks from the closure
and instead do the non-covariant checks for dynamic calls during the
NoSuchMethodForCallStub fallback by calling
Function::DoArgumentTypesMatch.

Adds two overloads for Function::DoArgumentTypesMatch, one which takes a
function type argument vector and one which takes neither an
instantiator type argument vector or a function type argument vector.
For the versions that are not explicitly passed a type argument vector,
an appropriate one is constructed using the arguments. If there is not
enough information in the arguments, then we fall back to assuming the
empty type argument vector for the instantiator case and instantiating
to bounds in the function type argument case.

Fixes Function::DoArgumentTypesMatch to handle generic functions and to
check arguments appropriately according to the active null safety mode.
For generic functions, the provided or resulting function type vector
has non-covariant checks performed against the type parameter bounds.

This change uncovered one test that was incorrectly passing in strong
mode, see https://github.com/dart-lang/sdk/issues/42688 for details.

Original description of second CL:

The VM only does this when the callable function does not expect dynamic
invocations. Otherwise, performing the checks would be redundant, as the
function body already contains the appropriate non-covariant checks.

Third CL had no additional description.

Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-linux-debug-x64-try,vm-dartkb-linux-release-x64-try,vm-kernel-reload-linux-release-x64-try, vm-kernel-reload-rollback-linux-debug-x64-try
Bug: https://github.com/dart-lang/sdk/issues/40813
Change-Id: I1a3e9c1865103a8d716e1cad814267caffaaadf2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/154688
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-07-21 10:00:41 +00:00
Alexander Aprelev d6eb87bbcc Revert "[vm] Remove non-covariant checks from closure bodies (part 1)" as it broke language_2/vm/no_such_args_error_message_vm_test.
This reverts commit 556f0fb5c8 and fixes merge conflict.

Revert "[vm] Perform non-covariant checks when dynamically invoking callables." as a collateral.

This reverts commit 7a6287bb92.

Revert "[vm] Use AreValidArguments so that names are checked as well." as a collateral

This reverts commit 90c683018f.

Change-Id: Iee2c5e91c39d19dca7a1e640c103443c95e6c4f9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/154705
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Alexander Aprelev <aam@google.com>
2020-07-16 23:25:54 +00:00
Martin Kustermann f955b82a92 [vm/compiler] Support unboxing of return values of getters
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>
2020-07-16 20:26:04 +00:00
Tess Strickland 556f0fb5c8 [vm] Remove non-covariant checks from closure bodies (part 1)
This change only affects compilation when running in non-precompiled
mode with --no-lazy-dispatchers enabled.

Instead of always compiling in non-covariant checks, even for closures
not called dynamically, remove the non-covariant checks from the closure
and instead do the non-covariant checks for dynamic calls during the
NoSuchMethodForCallStub fallback by calling
Function::DoArgumentTypesMatch.

Adds two overloads for Function::DoArgumentTypesMatch, one which takes a
function type argument vector and one which takes neither an
instantiator type argument vector or a function type argument vector.
For the versions that are not explicitly passed a type argument vector,
an appropriate one is constructed using the arguments. If there is not
enough information in the arguments, then we fall back to assuming the
empty type argument vector for the instantiator case and instantiating
to bounds in the function type argument case.

Fixes Function::DoArgumentTypesMatch to handle generic functions and to
check arguments appropriately according to the active null safety mode.
For generic functions, the provided or resulting function type vector
has non-covariant checks performed against the type parameter bounds.

This change uncovered one test that was incorrectly passing in strong
mode, see https://github.com/dart-lang/sdk/issues/42688 for details.

Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-linux-release-x64-try,vm-dartkb-linux-release-x64-try
Change-Id: I5030a46b356778448b51a243f16406eacf1c04bf
Bug: https://github.com/dart-lang/sdk/issues/40813
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/153202
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-07-16 14:54:04 +00:00
Clement Skau 219935a48f [VM] Adds Future.timeout stack unwinding support for --lazy-async-stacks.
Bug: https://github.com/dart-lang/sdk/issues/40815
Change-Id: I1603e1effe67b727d5dc47c0830b4758c764cf4a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152328
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-07-08 06:50:40 +00:00
Daco Harkes da39a4abff [vm/ffi] Remove try-catch from ffi trampoline if no handle scope
https://dart-review.googlesource.com/c/sdk/+/145591 introduced a try
catch into FFI calls to call ExitHandleScope on the exception path.
However, we only need this try-catch if we actually need to exit the
handle scope on the exception path, which is not the case if we have
no handles in the signature. So this CL makes the try catch optional.

This speeds up ffi calls without handles (tested on JIT x64):
FfiCall.Uint8x01(RunTime): 206.4801280066068 us.
->
FfiCall.Uint8x01(RunTime): 203.7240782236708 us.

Also adds a test that checks that an exception can still be propagated
with Dart_PropagateError from native code when the FFI trampoline has
no try catch.

Change-Id: I9fac7078381c60fb8055b64fff29ea364fbc948f
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/+/151239
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2020-06-26 12:03:02 +00:00
Daco Harkes 6544c69e23 [vm/ffi] Convert Objects to Dart_Handles in FFI calls
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>
2020-06-12 11:14:22 +00:00
Clement Skau e29407cde2 [VM] Removes parameter type check for sync-yielding function.
Benchmarks:
- RunTime (bigger is better):
  - Iteration.tree.syncstar(ia32): +8%
  - Iteration.concat.syncstar(ia32): +10%
  - Iteration.tree.syncstar(x64): +4%
  - Iteration.concat.syncstar(x64): +5%

Bug: https://github.com/dart-lang/sdk/issues/37753
Change-Id: I9203560b9ceb0f2dcc1583d88ea95b7d88b628d6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/146780
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-05-14 17:18:56 +00:00
Alexander Markov dd2d040ccb [vm] Cleanup flags which disable argument type checks and strong mode types
The following options are removed:
--use_strong_mode_types
--experimental_unsafe_mode_use_at_your_own_risk

The following flags and predicates are removed:

Dart_IsolateFlags::unsafe_trust_strong_mode_types
Isolate::argument_type_checks()
Isolate::can_use_strong_mode_types()
Isolate::should_emit_strong_mode_checks()

Also, everything depending on these flags is cleaned up.

Change-Id: I9328009ad5a42ea2173842386d612c465e3ebec1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/147325
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2020-05-08 15:53:09 +00:00
Ryan Macnak 6fe15f6df9 [vm] Represent tagged pointers as C++ value types instead of C++ pointer types.
This works around bugs in UndefinedBehaviorSanitizer and Clang.

Bug: b/28638298
Change-Id: I6be595f9664516019d28017d24559583a1ae3a21
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144354
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2020-04-25 05:21:27 +00:00
Alexander Markov 69791c50f8 [vm/nnbd] Use InitInstanceField instruction for late instance fields
Fixes https://github.com/dart-lang/sdk/issues/41299
Issue https://github.com/dart-lang/sdk/issues/41417

Change-Id: I1219ddaffcf3a2b17226305eeea8455c73f4ca78
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/143189
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2020-04-20 23:30:14 +00:00
Vyacheslav Egorov beb7114861 [vm/compiler] Add check to prevent inclusion of compiler headers into AOT runtime
This relands commit b0a71d364c

Cq-Include-Trybots: dart/try:vm-kernel-precomp-linux-release-simarm64-try,vm-kernel-precomp-linux-release-simarm-try,vm-kernel-linux-release-simarm64-try,vm-kernel-linux-release-simarm-try,vm-kernel-precomp-linux-release-x64-try
Change-Id: I1d32e5d0d44f4e422d188643b548ed81859f7d74
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/143807
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2020-04-17 13:11:08 +00:00
Alexander Aprelev c7861f309f Revert "[vm/compiler] Add check to prevent inclusion of compiler headers into AOT runtime"
This reverts commit b0a71d364c as it broke precomp builds.

Change-Id: Ieb776739b8d3e9ac74794e05fc20a793625e5f09
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/143865
Commit-Queue: Alexander Aprelev <aam@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2020-04-16 23:51:09 +00:00
Vyacheslav Egorov b0a71d364c [vm/compiler] Add check to prevent inclusion of compiler headers into AOT runtime
#if defined(DART_PRECOMPILED_RUNTIME)
  #error "AOT runtime should not use compiler sources (including header files)"
  #endif  // defined(DART_PRECOMPILED_RUNTIME)

Remove #if defined(DART_PRECOMPILED_RUNTIME) from most compiler sources.

Change-Id: Id175c83fdbea38d9d5e1371ff433e3888f2afe8a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/143523
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-04-16 22:59:03 +00:00
Alexander Markov d5c38cd354 [vm/nnbd] Use InitStaticField instruction for late static fields
Issue: https://github.com/dart-lang/sdk/issues/41299
Issue: https://github.com/dart-lang/sdk/issues/41417
Issue: https://github.com/dart-lang/sdk/issues/40796
Change-Id: Ibcc0ea55c6262ccafdda6c3fb1b28f357297c1de
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/143100
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Liam Appelbe <liama@google.com>
Benchmark: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2020-04-15 20:04:34 +00:00
Daco Harkes 55659b0372 [vm] Make our AOT pipeline work independent of the FLAG_precompiled_mode
Closes: https://github.com/dart-lang/sdk/issues/36521

Change-Id: I8f56d7bc9f3bfc7f4a6f0dcbee66f99838dde3cb
Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-linux-debug-x64-try,vm-kernel-linux-debug-x64-try,vm-kernel-linux-release-simarm-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/136622
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
2020-03-25 11:58:20 +00:00
Victor Lima b951498903 [vm/aot] Allow static methods to have unboxed args and return
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>
2020-03-05 15:17:04 +00:00