Commit Graph

23 Commits

Author SHA1 Message Date
Alexander Aprelev 0914835773 [vm/inliner] Tweak inlining heuristic, improve List.of inlining.
Builds on top of https://dart-review.googlesource.com/c/sdk/+/228660, introduces vm:vm:always-consider-inlining that tell inliner not to give up inlining of a function.

HashMap constructor got prefer-inline pragma to accommodate shift in inlining away from where it used to be inlined due to large size of inlined HashMap, greater than FLAG_inline_getters_setters_smaller_than heuristic.

Notable performance changes:

JIT (x64)
===
ListCopy.List.of.fixed.100 27.37%
ListCopy.List.of.fixed.2 16.31%

AOT (x64)
===
Empty  -9.978%
InstantiateTypeArgs.Instantiate1  -8.262%
...
ListCopy.List.of.fixed.2 13.73%
ListCopy.spread.num.2 15.51%
ListCopy.List.of.2 15.08%
MapCopy.Map.String.of.Map.100 55.62%
MapCopy.Map.Thing.of.Map.100 56.06%

flutter release
===
flutter_gallery_apk_size (Pixel 2)
-0.0074% (1.0 noise)41809568.00 41812676.00


Addresses https://github.com/dart-lang/sdk/issues/49408

TEST=Inliner_always_consider_inlining, Inliner_List_of_inlined
Change-Id: I7f8fc7cb0ac4a69310c108cf519518c384dc0164
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/253740
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Alexander Aprelev <aam@google.com>
2022-08-15 21:14:36 +00:00
Dan Field fe30c3f235 [vm] Expose whether extension stream has listeners, guard postEvent
This avoids json encoding that was otherwise happening even in product mode. JSON encoding shows up CPU profiling as taking significant time, particularly on low end devices.

TEST=runtime/observatory/tests/service/developer_extension_test.dart

Bug: https://github.com/dart-lang/sdk/issues/48860
Change-Id: I2cf4d949e85c0b23de01ec2033b04527d40c76fe
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/242081
Reviewed-by: Ben Konyi <bkonyi@google.com>
Reviewed-by: Lasse Nielsen <lrn@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Commit-Queue: Dan Field <dnfield@google.com>
2022-04-26 07:53:43 +00:00
Aske Simon Christensen 1ab705f60c [vm] Require all recognized methods to be marked with pragma.
Adds a @pragma("vm:recognized", <kind>) to all recognized methods, where
<kind> is one of "intrinsic", "graph" or "other", corresponding to the
kind of recognized method.

When running in debug mode, it is checked that all recognized methods
are marked with the correct kind of pragma, and that all methods marked
with the pragma are in fact recognized.

This enables kernel-level analyses and optimizations to query whether
a method is recognized by the VM.

TEST=Asserts that check the correspondence both ways, covered by test
suite, in particular the various CompileAll tests that compile all code.
Change-Id: I12f3305c72a93ecb1aefae2d66e3d9a7dae23b44
Cq-Do-Not-Cancel-Tryjobs: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/168951
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-11-16 13:49:50 +00:00
Martin Kustermann 7310377823 [vm/compiler] Tests, cleanups and fixes to Type Testing Stubs.
So far we relied on our normal Dart tests to exercise and test TTS.

This CL adds concrete TTS unit tests, which directly construct the
values the TTS accepts via the calling convention (instance,
dst_type, instantiator tav, function tav), and allows us to test

  * whether TTS handled the type test
  * whether TTS was falling back to STC which handled the type test
  * whether TTS (and STC) preserve the necessary registers

This CL also gets rid of TMP usage in TTS related code.

This CL also adds documentation about TTS to
runtime/docs/compiler/type_testing_stubs.md.

This CL also fixes two issues:

  * handle all-dynamic null vector `as Foo<..., T, ...>`
  * compare the actual type parameter value in `as Foo<..., T, ...>`
    (instead of using type_class_id>)

There seem to be no major performance changes, some benchmarks change
positive/negative but many of them seem to be bi-modal.

Issue https://github.com/dart-lang/sdk/issues/40964
Issue https://github.com/dart-lang/sdk/issues/40736

Change-Id: Iad41e405fe693c67be6221a18e3dad03cc0a5f24
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/139461
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
2020-03-17 14:11:02 +00:00
Samir Jindel 445ae73b32 [vm/tfa] Use pragma to pass type arguments to exact return types.
Change-Id: Ie2a1de07653c53e8b9506c54a0a66a5fe6503b9a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/129160
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2020-01-03 14:08:19 +00:00
Samir Jindel c885bdde1d [vm] DBC is obsolete. Remove dead code.
Change-Id: Ica33af158cca53c8e951e4b2582de83660e8a60d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/121851
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2019-10-27 18:18:29 +00:00
Teagan Strickland f822dfa3ea Reland "[vm/compiler] Implement new inlining pragmas."
This change introduces two new pragmas:

* `@pragma('vm:never-inline')`
* `@pragma('vm:prefer-inline')`

These replaces the old way of specifying AlwaysInline or NeverInline
annotations when the (now removed) --enable-inlining-annotations flag
was used.

Bug: https://github.com/dart-lang/sdk/issues/36571
Change-Id: Iee152c1d67abde8d58c58fa967449d36e77c8c93
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/110440
Commit-Queue: Teagan Strickland <sstrickl@google.com>
Reviewed-by: Samir Jindel <sjindel@google.com>
2019-07-30 12:01:06 +00:00
Siva Annamalai 27001fb289 Revert "[vm/compiler] Implement new inlining pragmas."
This reverts commit 629f38cf87.

Reason for revert: This CL seems to depend on constant_update_2018 flag being turned on by default. The CL that turns on constant_update_2018 has been reverted, so this CL is also being reverted.

Original change's description:
> [vm/compiler] Implement new inlining pragmas.
> 
> This change introduces two new pragmas:
> 
> * `@pragma('vm:never-inline')`
> * `@pragma('vm:prefer-inline')`
> 
> These replaces the old way of specifying AlwaysInline or NeverInline
> annotations when the (now removed) --enable-inlining-annotations flag
> was used.
> 
> Bug: https://github.com/dart-lang/sdk/issues/36571
> Change-Id: I2495c72819d94e43cefc837d4eb454b7b3d4140c
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/99148
> Commit-Queue: Teagan Strickland <sstrickl@google.com>
> Reviewed-by: Samir Jindel <sjindel@google.com>

TBR=sjindel@google.com,sstrickl@google.com

Change-Id: Idc8e8344adb026a308af20c8b0d0224edb891d9c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: https://github.com/dart-lang/sdk/issues/36571
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/109320
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
2019-07-16 22:33:00 +00:00
Teagan Strickland 629f38cf87 [vm/compiler] Implement new inlining pragmas.
This change introduces two new pragmas:

* `@pragma('vm:never-inline')`
* `@pragma('vm:prefer-inline')`

These replaces the old way of specifying AlwaysInline or NeverInline
annotations when the (now removed) --enable-inlining-annotations flag
was used.

Bug: https://github.com/dart-lang/sdk/issues/36571
Change-Id: I2495c72819d94e43cefc837d4eb454b7b3d4140c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/99148
Commit-Queue: Teagan Strickland <sstrickl@google.com>
Reviewed-by: Samir Jindel <sjindel@google.com>
2019-07-16 09:41:12 +00:00
Samir Jindel ae7bf9e999 [vm] Support closurization of methods through @pragma entry-points.
Fixes dartbug.com/35720.

Also enable native extensions in AOT.
Increases Flutter Gallery snapshot size by 0.19%.

Change-Id: I1b24c3b9a49a13fd48452e9a89595516a7f01780
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-mac-release-simarm64-try, vm-kernel-precomp-win-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/92283
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2019-02-14 17:47:28 +00:00
Aart Bik a5570bd995 [vm/compiler] Add optimization flag
Rationale:
See min-design doc.
Change-Id: Ic949a01ea2dcc873cf9e6d4d862e159be91da6f9
Reviewed-on: https://dart-review.googlesource.com/c/92161
Reviewed-by: Aart Bik <ajcbik@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Aart Bik <ajcbik@google.com>
2019-02-06 22:16:12 +00:00
Samir Jindel 267e91a0ea Re-land "[vm] Prevent access to non-annotated members through native API."
Two fixes:

  - Make entrypoints_verification_test work on configurations where CFE compilation
    is separate from execution.
  - Add missing entry-point annotation for Windows.

The original revision is in patchset 1.

Change-Id: I6c4b52b1bae7bc730546dad6a3e31d8625f850b1
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-mac-release-simarm64-try, vm-kernel-precomp-win-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/90942
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2019-01-29 15:10:34 +00:00
Régis Crelier 27316cc97b Revert "[vm] Prevent access to non-annotated members through native API."
This reverts commit 0203243381.

Reason for revert: breaking several bots

Original change's description:
> [vm] Prevent access to non-annotated members through native API.
> 
> We will issue warnings and throw an API error when the native API is used to access members which were not appropriately
> annotated as entry-points, if the flag "--verify-entry-points" is passed.
> 
> Also, fixes Class::Invoke against fields (isn't allowed through native API but
> could be allowed with mirrors, and is inconsistent with Library::Invoke behavior).
> 
> I've checked locally that this would have caught the bug in
> "Wrap the user entrypoint function in a zone with native exception callback. (#7512)".
> 
> Change-Id: I617c71e1965457c956c97761359765bb9bb18c1c
> 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-mac-release-simarm64-try, vm-kernel-precomp-win-release-x64-try
> Reviewed-on: https://dart-review.googlesource.com/c/90060
> Commit-Queue: Samir Jindel <sjindel@google.com>
> Reviewed-by: Alexander Markov <alexmarkov@google.com>

TBR=alexmarkov@google.com,sjindel@google.com

Change-Id: I554b389780e4ba652183c044b040b0c524beb5c2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
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-mac-release-simarm64-try, vm-kernel-precomp-win-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/90841
Reviewed-by: Régis Crelier <regis@google.com>
Commit-Queue: Régis Crelier <regis@google.com>
2019-01-23 20:37:22 +00:00
Samir Jindel 0203243381 [vm] Prevent access to non-annotated members through native API.
We will issue warnings and throw an API error when the native API is used to access members which were not appropriately
annotated as entry-points, if the flag "--verify-entry-points" is passed.

Also, fixes Class::Invoke against fields (isn't allowed through native API but
could be allowed with mirrors, and is inconsistent with Library::Invoke behavior).

I've checked locally that this would have caught the bug in
"Wrap the user entrypoint function in a zone with native exception callback. (#7512)".

Change-Id: I617c71e1965457c956c97761359765bb9bb18c1c
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-mac-release-simarm64-try, vm-kernel-precomp-win-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/90060
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2019-01-23 19:04:26 +00:00
Aart Bik aae0f7997d [vm/compiler] Express control dependence as data dependence.
Rationale:
This provides a more robust way of expressing control
dependences between bounds checks and their uses, while
still allowing for CSE and LICM where possible.
This also fixes the original bug that started this
whole redesign: invalid LICM of checkbound.

Note:
Deals with bounds check, null check still TBD.

Reland of:
https://dart-review.googlesource.com/c/sdk/+/85470

Mini design doc:
runtime/docs/compiler/data_dep_for_control_dep.md

https://github.com/dart-lang/sdk/issues/35139
https://github.com/dart-lang/sdk/issues/34684
https://github.com/dart-lang/sdk/issues/30633

Change-Id: I24b994344ed28c9f5fbf0ed033698be75448df1c
Reviewed-on: https://dart-review.googlesource.com/c/85720
Commit-Queue: Aart Bik <ajcbik@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2018-12-03 18:07:39 +00:00
Aart Bik ef419f68f9 Revert "[vm/compiler] Express control dependence as data dependence."
This reverts commit 41f3d4326e.

Reason for revert: I hit +2 by accident when I wanted to submit do a dry run

Original change's description:
> [vm/compiler] Express control dependence as data dependence.
> 
> Rationale:
> This provides a more robust way of expressing control
> dependences between bounds checks and their uses, while
> still allowing for CSE and LICM where possible.
> This also fixes the original bug that started this
> whole redesign: invalid LICM of checkbound.
> 
> Note:
> Deals with bounds check, null check still TBD.
> 
> Mini design doc:
> runtime/docs/compiler/data_dep_for_control_dep.md
> 
> https://github.com/dart-lang/sdk/issues/35139
> https://github.com/dart-lang/sdk/issues/34684
> https://github.com/dart-lang/sdk/issues/30633
> 
> Change-Id: Icfbd3ca60662e37046e48b95be7f81d05d94af88
> Reviewed-on: https://dart-review.googlesource.com/c/85470
> Commit-Queue: Aart Bik <ajcbik@google.com>
> Reviewed-by: Alexander Markov <alexmarkov@google.com>
> Reviewed-by: Vyacheslav Egorov <vegorov@google.com>

TBR=vegorov@google.com,kustermann@google.com,rmacnak@google.com,alexmarkov@google.com,asiva@google.com,ajcbik@google.com

Change-Id: Id20699f957681c248851b37d545b330fd4972d7a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/85522
Reviewed-by: Aart Bik <ajcbik@google.com>
Commit-Queue: Aart Bik <ajcbik@google.com>
2018-11-29 03:02:17 +00:00
Aart Bik 41f3d4326e [vm/compiler] Express control dependence as data dependence.
Rationale:
This provides a more robust way of expressing control
dependences between bounds checks and their uses, while
still allowing for CSE and LICM where possible.
This also fixes the original bug that started this
whole redesign: invalid LICM of checkbound.

Note:
Deals with bounds check, null check still TBD.

Mini design doc:
runtime/docs/compiler/data_dep_for_control_dep.md

https://github.com/dart-lang/sdk/issues/35139
https://github.com/dart-lang/sdk/issues/34684
https://github.com/dart-lang/sdk/issues/30633

Change-Id: Icfbd3ca60662e37046e48b95be7f81d05d94af88
Reviewed-on: https://dart-review.googlesource.com/c/85470
Commit-Queue: Aart Bik <ajcbik@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2018-11-29 01:47:18 +00:00
Martin Kustermann 0ef66e0f5c [VM] Add @pragma("vm:non-nullable-result-type") annotation
A field/function annotated with this pragma must be guaranteed to not
return `null` at runtime.

Make use of this non-nullable annotation in the VM's type propagator.

Annotates the "_TypedListView._typedData" field to ensure the VM knows it
returns a non-nullable _TypedListView.

Furthermore annotates methods on the integer implementation.  Those particular
methods are recognized methods with a "dynamic" return type.  This caused
the type propagator to use CompileType::Dynamic() as result type.  Since a
previous CL started to only utilize the annotated type if it is better than
"dynamic" more integer operations got handled in-line, though with null-checks.
Annotating those methods to return non-null improves the in-line handling of
integer operations.

This improves dart-aot

On arm7hf:
  SHA256: +5%, SHA: +6%, JsonObjectRoundTrip: +7%, ...

On arm8:
  SHA1: +28%, MD5: +25%, SHA256: +15%, TypedData.Int16ListViewBench: +18.5%, StringInterpolation: +18%, ...


Issue https://github.com/dart-lang/sdk/issues/31954
Issue https://github.com/dart-lang/sdk/issues/35154

Change-Id: Ia4263a37241a36c9dc35e8a48893297effa6f4b2
Reviewed-on: https://dart-review.googlesource.com/c/84421
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2018-11-22 16:18:27 +00:00
Martin Kustermann 94c325a889 Reland "[VM] Make @pragma annotations work generally"
Currently the @pramga('vm:exact-result-type') annotation only works if
the function is a recognized method.  This change changes that to make
the VM just look if a function has the annotation (no matter if it's
also in the list of recognized methods or not).

Furthermore this CL lets the type propgagator use
@pragma('vm:exact-result-type') annotations to narrow the [CompileType]
set on [LoadFieldInstr]s.

Since the @pragma is a general feature, this CL moves the
`Function::FindPragma()` to `Library::FindPragma` (which is where any
other metadata lookup happens).  We also let the `FindPragma` accept any
of Class/Function/Field objects.

Furthermore the `FindPragma()` function is fixed to handle the case
when the evaluation of the metadata results in an error.
In this case we simply claim to not have found a pragma annotation.

Issue https://github.com/dart-lang/sdk/issues/31954

Change-Id: If03f566e334cd53549985823ee3dd6b5e9672969
Reviewed-on: https://dart-review.googlesource.com/c/85163
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2018-11-22 10:54:44 +00:00
Martin Kustermann 845310302d Revert "[VM] Add @pragma annotations on Field, make @pragma annotations work generally"
This reverts commit 2de63ac01c.

Reason for revert: This triggers shutdown deadlocks for some reason:

#0  0xf7782cd9 __kernel_vsyscall
#1  0xf7753d0b pthread_cond_wait@@GLIBC_2.3.2
#2  0x0108a515 dart::Monitor::WaitMicros(long long)
#3  0x0108a467 dart::Monitor::Wait(long long)
#4  0x00fe9048 dart::KernelIsolate::Shutdown()
#5  0x00f99ae4 dart::Dart::Cleanup()
#6  0x01278fce Dart_Cleanup
#7  0x00dd347e dart::bin::main(int, char**)
#8  0x00dd3d64 main
#9  0xf745caf3 __libc_start_main
#10 0x00dd2021 _start
TID 30443:
#0  0xf7782cd9 __kernel_vsyscall
#1  0xf7531ee6 epoll_wait
#2  0x00ddab61 dart::bin::EventHandlerImplementation::Poll(unsigned int)
#3  0x00dfb2d4 dart::bin::ThreadStart(void*)
#4  0xf774ff72 start_thread
#5  0xf753143e __clone
TID 30444:
#0  0xf7782cd9 __kernel_vsyscall
#1  0xf7753d0b pthread_cond_wait@@GLIBC_2.3.2
#2  0x0108a515 dart::Monitor::WaitMicros(long long)
#3  0x0108a467 dart::Monitor::Wait(long long)
#4  0x012484d8 dart::BackgroundCompiler::Run()
#5  0x01248a37 dart::BackgroundCompilerTask::Run()
#6  0x0112203a dart::ThreadPool::Worker::Loop()
#7  0x01121efe dart::ThreadPool::Worker::Main(unsigned int)
#8  0x01089e73 dart::ThreadStart(void*)
#9  0xf774ff72 start_thread
#10 0xf753143e __clone

Original change's description:
> [VM] Add @pragma annotations on Field, make @pragma annotations work generally
> 
> Currently the @pramga('vm:exact-result-type') annotation only works if
> the function is a recognized method.  This change changes that to make
> the VM just look if a function has the annotation (no matter if it's
> also in the list of recognized methods or not).
> 
> Furthermore this CL adds a "has_pragma" bit to [Field] objects, similar
> to how we have it on [Function]/[Class]es.  This allows annotating
> fields with types, as we do with function return types.
> 
> Furthermore this CL lets the type propgagator use
> @pragma('vm:exact-result-type') annotations to narrow the [CompileType]
> set on [LoadFieldInstr]s.
> 
> Since the @pragma is a general feature, this CL moves the
> `Function::FindPragma()` to `Library::FindPragma` (which is where any
> other metadata lookup happens).  We also let the `FindPragma` accept any
> of Class/Function/Field objects.
> 
> Furthermore this CL adds a bailout if we try to evaluate metadata in
> the background compiler, since the background compiler is not allowed
> to execute generated code. The bailout should trigger a re-compilation
> on the mutator thread.
> 
> Furthermore the `FindPragma()` function is fixed to handle the case
> when the evaluation of the metadata results in e.g. a language error.
> In this case we simply claim to not have found a pragma annotation.
> 
> Issue https://github.com/dart-lang/sdk/issues/31954
> 
> Change-Id: I0900a80d5ae0f3e8d09baf13cba1b20dd974df31
> Reviewed-on: https://dart-review.googlesource.com/c/84037
> Commit-Queue: Martin Kustermann <kustermann@google.com>
> Reviewed-by: Alexander Markov <alexmarkov@google.com>
> Reviewed-by: Vyacheslav Egorov <vegorov@google.com>

TBR=vegorov@google.com,kustermann@google.com,alexmarkov@google.com,sjindel@google.com

Change-Id: Ic0d22d32b0eea3a76ec245cabab0006f97ca1b05
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/84622
Reviewed-by: Martin Kustermann <kustermann@google.com>
2018-11-16 14:50:32 +00:00
Martin Kustermann 2de63ac01c [VM] Add @pragma annotations on Field, make @pragma annotations work generally
Currently the @pramga('vm:exact-result-type') annotation only works if
the function is a recognized method.  This change changes that to make
the VM just look if a function has the annotation (no matter if it's
also in the list of recognized methods or not).

Furthermore this CL adds a "has_pragma" bit to [Field] objects, similar
to how we have it on [Function]/[Class]es.  This allows annotating
fields with types, as we do with function return types.

Furthermore this CL lets the type propgagator use
@pragma('vm:exact-result-type') annotations to narrow the [CompileType]
set on [LoadFieldInstr]s.

Since the @pragma is a general feature, this CL moves the
`Function::FindPragma()` to `Library::FindPragma` (which is where any
other metadata lookup happens).  We also let the `FindPragma` accept any
of Class/Function/Field objects.

Furthermore this CL adds a bailout if we try to evaluate metadata in
the background compiler, since the background compiler is not allowed
to execute generated code. The bailout should trigger a re-compilation
on the mutator thread.

Furthermore the `FindPragma()` function is fixed to handle the case
when the evaluation of the metadata results in e.g. a language error.
In this case we simply claim to not have found a pragma annotation.

Issue https://github.com/dart-lang/sdk/issues/31954

Change-Id: I0900a80d5ae0f3e8d09baf13cba1b20dd974df31
Reviewed-on: https://dart-review.googlesource.com/c/84037
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2018-11-16 11:18:22 +00:00
Vyacheslav Egorov a1a38da58e [vm] Report an error when illegally accessing class through API in AOT mode.
Move all pragma documentation into runtime/docs and reformat it a bit.

Fixes https://github.com/dart-lang/sdk/issues/35170

Change-Id: I2ab4d6d598f115efaa3192135cb838fb85cbbb01
Reviewed-on: https://dart-review.googlesource.com/c/84435
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
Auto-Submit: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Samir Jindel <sjindel@google.com>
2018-11-15 12:00:57 +00:00
Vyacheslav Egorov 229d793602 [vm/compiler] Support materializing unboxed variables when entering catch.
Previously we tried to rely on the assumption that all variables would be
boxed - so the machinery for setting correct catch-entry state only
supported tagged values and constants. However this both leads to worse code
and is not entirely correct assumption.

This also:

- renames various confusingly named classes: we move away from talking
about "catch entry state" to "catch entry moves" - because we only
record a subset of moves that needs to be performed and that does
not describe the whole state;
- refactors a bunch of associated code to be more readable and maintainable;
- adds documentation about catch implementation in optimized code
to runtime/docs/compiler;

Fixes https://github.com/flutter/flutter/issues/21685.

Change-Id: I03ae361a1bb7710acbd9f661ae014e663a163c59
Reviewed-on: https://dart-review.googlesource.com/74860
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2018-09-14 17:39:12 +00:00