Commit Graph

17 Commits

Author SHA1 Message Date
Johnni Winther 6f54f6236e [cfe] Add AwaitExpression.runtimeTypeCheck
Add AwaitExpression.runtimeTypeCheck to support easy backend
implementation of runtime type check.

In response to https://github.com/dart-lang/sdk/issues/49396

TEST=pkg/front_end/testcases/general/issue49396.dart

Change-Id: I13b9b14566ebc34cdb0811c16a262421417b68e7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/270723
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
2022-11-22 10:42:22 +00:00
Alexander Markov 3e0abdbb98 Reland "[vm] Enable new implementation of async/async* in JIT mode"
TEST=ci

Issue: https://github.com/dart-lang/sdk/issues/48378
Change-Id: I5b8720b8ef5b8d28773d26c7e94c2e78d876c9d2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/247603
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
2022-06-09 15:24:13 +00:00
Alexander Markov 3e10d8c833 Revert "[vm] Enable new implementation of async/async* in JIT mode"
This reverts commit b3544c44dc.

Reason for revert: avoid incompatibility between Dart->kernel compiler
and Dart VM during Dart and Flutter rolls (b/234850964).

TEST=ci

Original change's description:
> [vm] Enable new implementation of async/async* in JIT mode
>
> TEST=ci
>
> Issue: https://github.com/dart-lang/sdk/issues/48378
> Change-Id: I0fc069508cb1ce5648deb6604171dfdcd5bcb5c8
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/246082
> Reviewed-by: Johnni Winther <johnniwinther@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>
> Reviewed-by: Slava Egorov <vegorov@google.com>
> Commit-Queue: Alexander Markov <alexmarkov@google.com>

TBR=vegorov@google.com,kustermann@google.com,rmacnak@google.com,alexmarkov@google.com,johnniwinther@google.com

Change-Id: I6157623857dbfa9bb07eb1f620d100f5b24314d9
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Issue: https://github.com/dart-lang/sdk/issues/48378
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/247243
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2022-06-07 17:57:30 +00:00
Alexander Markov b3544c44dc [vm] Enable new implementation of async/async* in JIT mode
TEST=ci

Issue: https://github.com/dart-lang/sdk/issues/48378
Change-Id: I0fc069508cb1ce5648deb6604171dfdcd5bcb5c8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/246082
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2022-06-02 23:40:15 +00:00
Johnni Winther a6acb1a5f0 [cfe] Include the future value type in ast-to-text
This is in preparation for including a "futureValueType" for
non-nnbd async functions.

TEST=existing

Change-Id: I15cf5e58623df07fe3c670aa866b7b04805c0f3d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/238703
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Reviewed-by: Aske Simon Christensen <askesc@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
2022-03-28 10:37:25 +00:00
Martin Kustermann f50b3a52e4 [vm] Make async lowering no longer use optional parameters
This CL

  * Makes :async_op only have two parameters: We take advantage
    of the fact that errors not only have exception != null but
    also stacktrace != null.
  * Makes :async_op have no optional parameters. This reduces
    code size significantly.
  * Removes unused parameter in _awaitHelper calls
  * Wrap the then callback instead of the error callback. (needed
    to make optional parameters required)

This results in 2% code savings on a big g3 app.
The size of :async_op shrinks on average by 11%

TEST=ci

Change-Id: I38d5fba4ebebc780b48dac5aa6a250d2c7952bfd
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/233362
Reviewed-by: Slava Egorov <vegorov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2022-02-18 12:09:42 +00:00
Martin Kustermann 4eaacc3df9 [vm] Improve async performance by taking advantage of static types of returned values
In general any async function can return X or Future<X>. Though the
future implementation has to do different things depending on which case
we're in. It does so by using a `<obj> is Future<T>` test. This test is very
expensive if many different classes flow into `<obj>`.

Though most functions do not return `Future` objects from async
functions. We can determine that statically by looking if any returned
expression could be a future. If not, we can bypass the `is Future<T>`
test entirely.

Issue https://github.com/dart-lang/sdk/issues/48226
Issue https://github.com/dart-lang/sdk/issues/48235

TEST=pkg/front_end/testcases/general/async_function_returns_future_or.dart

Change-Id: If655bdbdddc214dd7b12be9905b3c788252547d0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/230662
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Lasse Nielsen <lrn@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2022-02-04 22:06:59 +00:00
Alexander Markov 8e1fbc9ab3 Migrate pkg/vm to null safety, part 1
TEST=ci
Issue: https://github.com/dart-lang/sdk/issues/46620

Change-Id: I2ad3f3aac03c8c13d2562a385a5b6636675401f5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/207362
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2021-07-20 06:49:20 +00:00
Alexander Markov 93c812e5a7 [vm/kernel] Revise call site metadata for new invocation nodes
Call site attributes metadata is used to pass receiver static type
from kernel AST to the VM. In certain cases, call site metadata is
superseded by the new invocation nodes. This change revises how call
site attributes metadata is generated in call site annotator and
used in the VM for the new invocation nodes.

* When building flow graph for FunctionInvocation,
  the decision to generate unchecked calls is now done by
  looking only at the function access kind, without taking static
  receiver type into account. Call site annotator now verifies that
  static receiver type matches function access kind for
  FunctionInvocation nodes to make sure nothing is lost during this
  transition. Also, flow graph builder asserts that
  function access kind is either Function or FunctionType.

* Call site metadata is no longer generated for LocalFunctionInvocation
  and FunctionInvocation nodes, as it is no longer used by the VM.

* Call site annotator now verifies that InstanceInvocation nodes
  cannot be used for unchecked closure calls. Flow graph builder no
  longer recognizes unchecked closure calls for InstanceInvocation
  and DynamicInvocation nodes.

* When generating flow graph for DynamicInvocation and DynamicSet,
  call site metadata is no longer taken into account (metadata is not
  generated by call site annotator for these nodes).
  Also, 'this' receiver is not recognized for DynamicInvocation and
  DynamicSet nodes as it may potentially violate dynamic call semantics.

TEST=ci

Issue: https://github.com/dart-lang/sdk/issues/45340
Change-Id: Ia8c5e547965ac8d7a17908d4be4bd048e5cfb23f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/203668
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2021-06-16 18:06:17 +00:00
Alexander Markov 6e989dfe35 [vm/kernel] Generate new invocation nodes in async transformers
This change replaces generation of old invocation AST nodes
(such as PropertyGet, PropertySet and MethodInvocation) in async
transformers with new nodes (InstanceGet, InstanceSet,
InstanceInvocation, LocalFunctionInvocation).
The old nodes will be deleted eventually.

TEST=existing tests

Issue: https://github.com/dart-lang/sdk/issues/45340
Change-Id: I8c2ead9509cfd2def2f75f9d82dc13b2a9490fdf
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/202801
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Clement Skau <cskau@google.com>
Reviewed-by: Aske Simon Christensen <askesc@google.com>
2021-06-09 22:14:51 +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
Liam Appelbe 504e9a32f9 Reland "[wasm] Remove dart:wasm"
This is a reland of ade333dd54

Original change's description:
> [wasm] Remove dart:wasm
>
> I'm not entirely sure why I had to modify a random set of fingerprints
> in runtime/vm/compiler/recognized_methods_list.h, but when I did a debug
> build it had some fingerprint errors.
>
> Change-Id: Ib0a0cccb37f2efba509e2b37b6eabe790fa933c4
> TEST= Deleting stuff, so not really necessary
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/170620
> Commit-Queue: Liam Appelbe <liama@google.com>
> Reviewed-by: Liam Appelbe <liama@google.com>
> Reviewed-by: Ryan Macnak <rmacnak@google.com>

Change-Id: I0d1388f6312358cc62bb32f5ac7b88a3187223c9
TEST= Deleting stuff, so not really necessary
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/171940
Commit-Queue: Ivan Inozemtsev <iinozemtsev@google.com>
Reviewed-by: Liam Appelbe <liama@google.com>
2020-11-13 20:40:24 +00:00
Siva Annamalai 54a91f26c4 Revert "[wasm] Remove dart:wasm"
This reverts commit ade333dd54.

Reason for revert: This broke both the Flutter HHH and Google3 bots. It looks like some co-ordination is required between the Google3 and Flutter engine build changes for this CL to land.

Original change's description:
> [wasm] Remove dart:wasm
>
> I'm not entirely sure why I had to modify a random set of fingerprints
> in runtime/vm/compiler/recognized_methods_list.h, but when I did a debug
> build it had some fingerprint errors.
>
> Change-Id: Ib0a0cccb37f2efba509e2b37b6eabe790fa933c4
> TEST= Deleting stuff, so not really necessary
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/170620
> Commit-Queue: Liam Appelbe <liama@google.com>
> Reviewed-by: Liam Appelbe <liama@google.com>
> Reviewed-by: Ryan Macnak <rmacnak@google.com>

TBR=rmacnak@google.com,liama@google.com

Change-Id: I244d7b3549845dd71719176a62b6ec3a4c4b5f86
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/171860
Reviewed-by: Siva Annamalai <asiva@google.com>
2020-11-13 01:54:10 +00:00
Liam Appelbe ade333dd54 [wasm] Remove dart:wasm
I'm not entirely sure why I had to modify a random set of fingerprints
in runtime/vm/compiler/recognized_methods_list.h, but when I did a debug
build it had some fingerprint errors.

Change-Id: Ib0a0cccb37f2efba509e2b37b6eabe790fa933c4
TEST= Deleting stuff, so not really necessary
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/170620
Commit-Queue: Liam Appelbe <liama@google.com>
Reviewed-by: Liam Appelbe <liama@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2020-11-12 19:22:29 +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
Ryan Macnak 471b01de2e [vm] Topologically sort loading units.
The VM assumes parents appear before children when iterating loading units in id order. Normally this happens as a side-effect of sources being loaded in import order, but this might not happen in environments that combine separately produced kernel files.

Bug: https://github.com/dart-lang/sdk/issues/42985
Change-Id: Ice9e2e07cf2aa89e91ab313951cc33c1924f17ed
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/158066
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2020-08-11 20:42:29 +00:00
Ryan Macnak 6cc943957b [vm] Compute a partitioning of the program into loading units.
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>
2020-06-19 21:35:47 +00:00