Functions returning non-nullable records of 2 fields can now return
them as separate values on 2 registers. This postpones and sometimes
eliminates creation of record instances. As other unboxing
optimizations of return values, this optimization is only
performed in AOT.
Pair of values for an unboxed record are represented using
kPairOfTagged representation, which can be now used for the input of
Return and for the output of StaticCall/InstanceCall
PolymorphicInstanceCall/DispatchTableCall instructions.
In order to combine separate values for Return, a new MakePair
instruction is added. Extracting separate values from the result of
a call is implemented using existing ExtractNthOutput instruction.
Benchmarks (AOT mode):
MultipleReturns.Forwarded.Record +45-57%
MultipleReturns.Forwarded.RecordNamed +43-57%
MultipleReturns.NotInlined.Record +58-79%
MultipleReturns.NotInlined.RecordNamed +53-76%
TEST=runtime/tests/vm/dart/records_return_value_unboxing_il_test.dart
TEST=benchmarks/MultipleReturns/dart/MultipleReturns.dart
Issue: https://github.com/dart-lang/sdk/issues/49719
Change-Id: I7117b19a134c1db0ba5117a1ef093867f9ba20e2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/269100
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
* Add support for dumping flow graphs in JSON (to make it machine
readable);
* Add support for controlling which functions are dumped through
a pragma annotation:
`@pragma('vm:testing:print-flow-graph'[, "passes filter"])`
* Replace simple matching DSL with programmatic matching
* Support obfuscated builds
Fixes https://github.com/dart-lang/sdk/issues/47340
TEST=vm/dart{,_2}/aot_prefer_equality_comparison_il_test
Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-linux-product-x64-try,vm-kernel-precomp-linux-release-x64-try
Change-Id: Ie067ba451d311e6019a8c3a88c012231b0c50eb5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/219240
Commit-Queue: Slava Egorov <vegorov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Our current unit testing infrastructure does not make it possible to
test AOT compilation pipeline end-to-end, because it does not run TFA
when generating Kernel.
This makes it challenging to write regression tests for certain issues.
Instead we extend test runner with a capability to perform IL matching
when running AOT tests.
runtime/docs/infa/il_tests.md provides details on how to write such tests.
TEST=manually
Change-Id: I6f5220b814f4a5d8c053efacd3711df495dea404
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/214961
Commit-Queue: Slava Egorov <vegorov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@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>
New option can be used instead of --aot to produce a tree-shaken
minimal .dill file which can run on the VM in JIT mode.
Can be used along with --no-link-platform and --gen-bytecode to further
decrease size of the .dill file.
Change-Id: I35e8d81263a5e223decf160d79322c06cfd27321
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/140740
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
Code references other objects via object pools. In bare instructions mode
individual objects pool are merged together into a global object pool,
which means that we no longer can clearly see which objects are
referenced by each individual code object.
This CL adds logic into snapshot writer to include these implicit
references into the snapshot profile. We achieve this by keeping
individual object pools around (but avoiding writing them into the
snapshot itself).
R=sjindel@google.com
Change-Id: I35b48fcfc26c0a8c0b66593139fa7ac8e627da6c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/136626
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Samir Jindel <sjindel@google.com>
- Remove all code that generates the corelib and dart:io library sources into C++ arrays and link them into dart_bootstrap
- Remove the executable dart_bootstrap and all uses of it
- Remove bootstrap_nolib.cc and builtin_nocore.cc
- Remove the Dart 1 code in core lib bootstrap path
Change-Id: Ifd33496204285a08b42fe09e39428e7a92b416b6
Reviewed-on: https://dart-review.googlesource.com/c/77241
Commit-Queue: Siva Annamalai <asiva@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
This reverts commit 08f59e5de3.
There are no changes to take 3 except fixing merge conflicts.
Change-Id: I45d5a16274c80f469827c19f4e4f4ca724e85a67
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Reviewed-on: https://dart-review.googlesource.com/68363
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
which was blocking the Dart SDK roll.
Revert "Take 3 for "[vm/kernel/precomp] Remove procedures from entry points files.""
This reverts commit 567109df7f.
Revert "[vm/precomp] Extend @pragma entry-points to classes."
This reverts commit 232698047c.
Change-Id: Ib63d1afb8a1c978be7ddf282af0e7d5547111cc3
Reviewed-on: https://dart-review.googlesource.com/67300
Reviewed-by: Alexander Markov <alexmarkov@google.com>
I've updated the transformer test. The Windows build error appears to have been spurious.
Take 2 is in patchset 1.
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Change-Id: I6ef8f70aaf4664e0411e776463e88c2a1068dbcc
Reviewed-on: https://dart-review.googlesource.com/65902
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
This reverts commit a437b4b469.
Reason for revert: Build on Windows appears broken.
Original change's description:
> Re-land "[vm/kernel/precomp] Remove procedures from entry points files."
>
> The original revision is in Patchset 1.
>
> Due to idiosyncrasies of the legacy VM parser, we need to put the @pragma definition
> on both the original and patched definition. Hopefully we can remove these extra definitions
> once Dart 1 AOT is fully obsolete.
>
> Cq-Include-Trybots: luci.dart.try: vm-kernel-optcounter-threshold-linux-release-x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-linux-release-simarm-try,vm-kernel-precomp-linux-release-simarm64-try,vm-kernel-precomp-linux-release-x64-try,vm-kernel-precomp-win-release-x64-try
> Change-Id: I2515dee2bbf14cece5e75450b1951d45f1250959
> Reviewed-on: https://dart-review.googlesource.com/65545
> Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
> Reviewed-by: Alexander Markov <alexmarkov@google.com>
> Commit-Queue: Samir Jindel <sjindel@google.com>
TBR=lrn@google.com,alexmarkov@google.com,sjindel@google.com
Change-Id: I783dcd6f00d1f31907d90651ffbf80a6af1fb98d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
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Reviewed-on: https://dart-review.googlesource.com/65960
Reviewed-by: Samir Jindel <sjindel@google.com>
Commit-Queue: Samir Jindel <sjindel@google.com>
The original revision is in Patchset 1.
Due to idiosyncrasies of the legacy VM parser, we need to put the @pragma definition
on both the original and patched definition. Hopefully we can remove these extra definitions
once Dart 1 AOT is fully obsolete.
Cq-Include-Trybots: luci.dart.try: vm-kernel-optcounter-threshold-linux-release-x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-linux-release-simarm-try,vm-kernel-precomp-linux-release-simarm64-try,vm-kernel-precomp-linux-release-x64-try,vm-kernel-precomp-win-release-x64-try
Change-Id: I2515dee2bbf14cece5e75450b1951d45f1250959
Reviewed-on: https://dart-review.googlesource.com/65545
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Samir Jindel <sjindel@google.com>
- make Dart2 the default option for the command line VM
- add option --no-preview-dart-2 as a fallback option to run dart1
- change test scripts to use the executable dart for testing dart2 mode instead of
pkg/vm/tool/dart2
- adjust numerous build and test configurations
Change-Id: Id813fa5b71a89c7ec9335d3f6e83cfc9f35f86e7
Reviewed-on: https://dart-review.googlesource.com/58240
Commit-Queue: Siva Annamalai <asiva@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>
Reviewed-by: Nate Bosch <nbosch@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Reviewed-by: Vijay Menon <vsm@google.com>
Alexander Markov