... and use this to wrap expressions instead of Let
TEST=existing
Change-Id: I6d1f5cfa4693222840d6cb406790c39c6ae63e5d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/208580
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
Previously constants were referenced via there relative binary offset,
i.e. a constant reference saying 42 meant at byte offset 42 relative to
the start of the constant table in the binary. This was done to be able
to (on the VM side) read the needed constants lazily. It meant, though,
that constants had to be stored in a map, mapping from the byte position
to the constant.
This change adds a level of indirection when needing the lazy reading,
but lets the constant references reference the constant number instead
so that a constant reference saying 42 means constant number 42,
i.e. constants can be stored in a list instead of in a map.
This is done on the dart side, but the VM still stores it in a map.
The level of indirection is a tabel next to the constant table where
each entry has constant size (4 bytes) from which one can read the
relative byte offset into the constant table from the constant number,
thus still being able to read needed constants lazily.
This CL also cleans up a leftover where for instance double constants
had their textual representation saved as a string in the string indexer
(and thus the output dill) even though they were never referenced.
File size changes:
* Platform: increses 7,816 bytes.
* Compile of dart2js (including platform): decreases 71,424 bytes.
Speed changes:
* Adding `UserTag`s to the code and looking at observatories cpu profile
on a `pkg/kernel/test/binary_bench.dart --golem AstFromBinaryLazy`
run of a compile of dart2js reading the constant table has gone
from ~10% to ~5%.
* Doing statistics on
`pkg/kernel/test/binary_bench.dart --raw AstFromBinaryLazy` run of a
compile of dart2js says -6.28169% +/- 4.97269%.
* Golem runs has nothing above the noise level.
It does say "AstFromBinaryLazy (Intel Xeon) -4.006% (0.4 noise)" and
"AstFromBinaryEagerP50 (Intel Core i5) -8.929% (0.6 noise)" though.
TEST=All tests running the VM tests this.
Change-Id: I07ead457527a4477de803ee55ba742f5557413d3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196925
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Function type parameters in occurring in constants were using an offset
based on the context in which the constant first occurred. This meant
that function type parameters occurring in a generic context would have
a different offset that those occurring in a non-generic context.
The loading of .dill in ast_from_binary would read all constants outside
the context and would therefore get the indices wrong on generic
function types.
This CL changes the encoding of these type parameters to always use
a fresh context.
Closes#45415
TEST=pkg/front_end/testcases/generic_metadata/from_dill/main.dart
Change-Id: Ifdaedb4581f1e022c908fc58a58ceac3d7b0900e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/193481
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
The fix includes processing of type parameters elsewhere and also
adding support for annotations on extensions.
Closes#28981
TEST=existing
Change-Id: I71ab5640bd3a16f4a024b6edd047a525eed1c399
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191404
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@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>
* 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>
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>
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/+/181303Closes#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>
Changes fields to be either mutable or immutable by construction.
This ensure that we don't create setter references for fields that
cannot be assigned to and is a prerequisite for replacing @fields/
@fields= canonical names with @getters/@setters.
TEST=existing expectation tests and verification
Change-Id: I70b9a504ee6f221b7c334ac02620feb0d5f7ae01
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/176665
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
+ add predicate helpers to identify these and extract their
original names.
TEST=pkg/front_end/test/predicates/predicate_test.dart
Change-Id: I4d94c575d010b6b01c985eaf5392b9e0e979d044
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/175250
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
The enum `ProcedureStubKind` together with the flag `isSynthetic`
replaces the flags `isForwardingStub`, `isForwardingSemiStub`,
`isNoSuchMethodForwarder` and `isMemberSignature`.
The semantics of the existing properties on `Procedure` is unchanged.
The new MixinStub and MixinSuperStub stub kinds are not used yet and
the stub target for NoSuchMethodForwarder is not set yet.
TEST=refactoring
Change-Id: I6e81970dbb4baf0229f43c2a0bf0d5e575e65043
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/174462
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Dmitry Stefantsov <dmitryas@google.com>
This adds the recorded constant coverage to the dill file.
runtimes for constant evaluation:
dart2js: No difference proven at 95.0% confidence
flutter gallery: No difference proven at 95.0% confidence
big internal app: No difference proven at 95.0% confidence
sdk sizes:
vm: ~0.0182%
dart2js: ~0.0137%
flutter: ~0.0197%
compile sizes:
dart2js: ~0.0179%
flutter gallery: ~0.0162%
big internal app: ~0.0414%
TEST=test was fixed.
Change-Id: I347751e4d96d4d62140d26ebe37960f46a0dfbfa
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/171948
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
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>
ClassLevel and Class.level have been unused for (at least) years.
This CL removes them.
Library.flags furthermore had the first bit unused after the 'external'
flag was removed (last year I think).
This CL shifts it down so the actual flags doesn't start at bit 1.
Change-Id: Ie0afd150cad331ea694bc5fe2a20aafed22916cc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/169202
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
This is a follow-up to
https://dart-review.googlesource.com/c/sdk/+/169080
mostly changing the library nnbd bit encoding so that weak is uniquely
represented as "00" which is the default when nothing else is set.
Change-Id: I1cd31e8c1927fee29d579772fb6893cb28befbf1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/169200
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
- 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>
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>
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>
Note: This is a reland of https://dart-review.googlesource.com/c/sdk/+/150343
Adds a new SDK hash to kernels and the VM which is optionally checked
to verify kernels are built for the same SDK as the VM.
This helps catch incompatibilities that are currently causing
subtle bugs and (not so subtle) crashes.
The SDK hash is encoded in kernels as a new field in components.
The hash is derived from the 10 byte git short hash.
This new check can be disabled via:
tools/gn.py ... --no-verify-sdk-hash
This CL bumps the min. (and max.) supported kernel format version,
making the VM backwards incompatible from this point back.
This also bumps the min. and current ABI version.
Bug: https://github.com/dart-lang/sdk/issues/41802
Change-Id: I2f85945045a603eb9dcfd1f2c0d0d024bd84a956
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152802
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
This reverts commit edde575dcd.
Reason for revert: Breaks the Dart to Flutter roll and golem
Original change's description:
> [SDK] Adds an SDK hash to kernels and the VM.
>
> Adds a new SDK hash to kernels and the VM which is optionally checked
> to verify kernels are built for the same SDK as the VM.
> This helps catch incompatibilities that are currently causing
> subtle bugs and (not so subtle) crashes.
>
> The SDK hash is encoded in kernels as a new field in components.
> The hash is derived from the 10 byte git short hash.
>
> This new check can be disabled via:
> tools/gn.py ... --no-verify-sdk-hash
>
> This CL bumps the min. (and max.) supported kernel format version,
> making the VM backwards incompatible from this point back.
>
> Bug: https://github.com/dart-lang/sdk/issues/41802
> Change-Id: I3cbb2d481239ee64dafdaa0e4aac36c80281931b
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/150343
> Commit-Queue: Clement Skau <cskau@google.com>
> Reviewed-by: Jens Johansen <jensj@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>
TBR=kustermann@google.com,jensj@google.com,cskau@google.com
Change-Id: I34cc7d378e2babdaaca4d932d19c19d0f35422fc
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: https://github.com/dart-lang/sdk/issues/41802
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152703
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
Adds a new SDK hash to kernels and the VM which is optionally checked
to verify kernels are built for the same SDK as the VM.
This helps catch incompatibilities that are currently causing
subtle bugs and (not so subtle) crashes.
The SDK hash is encoded in kernels as a new field in components.
The hash is derived from the 10 byte git short hash.
This new check can be disabled via:
tools/gn.py ... --no-verify-sdk-hash
This CL bumps the min. (and max.) supported kernel format version,
making the VM backwards incompatible from this point back.
Bug: https://github.com/dart-lang/sdk/issues/41802
Change-Id: I3cbb2d481239ee64dafdaa0e4aac36c80281931b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/150343
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
This makes the string (de)serialization independent of the core library
UTF-8 encoder/decoder so we can change that without affecting kernel
serialization.
It also speeds up serialization and deserialization by a few percent.
Change-Id: I347e471ed0174cc5cb191335dd7c47e6eb3dad59
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/140293
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
Commit-Queue: Aske Simon Christensen <askesc@google.com>
This bit is required to support synthesized field used for the late
lowering. These fields should not be seen as part of the interface,
that is, classes that implement the class declaring the late field should
not be required to override these fields.
Closes#41436
Change-Id: I9a98322bdd1842b46bde34fff1176a7577672e0f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/142998
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
index to fix VMs coverage issue
This CL fixes the VM not always reporting coverage for mixin usages
properly.
* When asking the VM for coverage you can do it in one of two ways
* Ask the VM for coverage for everything; or
* Ask the VM for coverage for a specific script
* Asking the VM for coverage for everything works perfectly fine.
The VM goes through everything and reports coverage correctly.
* Asking the VM for coverage for a specific script (which is, at least
now, what the flutter tools does) doesn't work in the simple mixin
case described at http://dartbug.com/39779: The VM goes through the
libraries, asking for the list of scripts they "know about",
and checks for matches against what you asked for.
In this case, when asking for 'master.dart', the library for
'lib.dart' says no when it shouldn't --- because of the way the mixin
transformation works the content is actually in lib.dart.
This CL updates the content of the field 'sourceReferences' on Library
to fix the issue.
Fixes#39779
Change-Id: I0c38a323c81d1784ade704837b67ece549fc95d2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/128585
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
This reverts commit 63333deed6.
Reason for revert: Causes failures on Flutter HHH CI in the "flutter test hostonly_devicelab_tests" step due to kernel binary format version mismatch.
Original change's description:
> [vm/cfe] Elaborate for-in statements during async transform
>
> This allows us TFA to analyze the iterator calls and we generate much tighter
> code in AOT.
>
> However, due to the increased inlining opportunities, we end up emitting 0.5%
> more code. Inlining of the _GrowableList iterator specifically also includes the
> concurrent modification check and error handling.
>
> Calls to get:iterator, moveNext and get:current account for 7.12% of all InstanceCall
> instructions in Flutter Gallery.
>
> Fixes https://github.com/dart-lang/sdk/issues/39516
> Issue https://github.com/dart-lang/sdk/issues/39566
> Issue https://github.com/dart-lang/sdk/issues/39565
>
> Change-Id: I8dcc08b7571137e869a16ceea8cc73539eb02a5a
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/126381
> Commit-Queue: Samir Jindel <sjindel@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>
TBR=kustermann@google.com,sjindel@google.com,johnniwinther@google.com
# Not skipping CQ checks because original CL landed > 1 day ago.
Change-Id: I89b88c3d9f7c743fc340ee73a45c3f57059bcf30
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/126734
Reviewed-by: Clement Skau <cskau@google.com>
Reviewed-by: Teagan Strickland <sstrickl@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Clement Skau <cskau@google.com>
This allows us TFA to analyze the iterator calls and we generate much tighter
code in AOT.
However, due to the increased inlining opportunities, we end up emitting 0.5%
more code. Inlining of the _GrowableList iterator specifically also includes the
concurrent modification check and error handling.
Calls to get:iterator, moveNext and get:current account for 7.12% of all InstanceCall
instructions in Flutter Gallery.
Fixes https://github.com/dart-lang/sdk/issues/39516
Issue https://github.com/dart-lang/sdk/issues/39566
Issue https://github.com/dart-lang/sdk/issues/39565
Change-Id: I8dcc08b7571137e869a16ceea8cc73539eb02a5a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/126381
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
