Commit Graph

13143 Commits

Author SHA1 Message Date
Alexander Markov 320ad6adb4 [vm/aot] Remove heuristic selection of checked Smi operations
TEST=existing tests

Change-Id: Id1fb01d6efa51e272636f54595393cebab3d45b4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191760
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2021-03-25 19:18:47 +00:00
Alexander Aprelev 024ff88ce8 [vm/debugger] Refactor reference to Function out of BreakpointLocation.
BreakpointLocation represents source code location, which can
correspond to multiple Functions(in case of some mixin method
mixed-in in several classes, for example).
BreakpointLocation is connected to a Function via CodeBreakpoint.
CodeBreakpoint represents some point in the generated Code in some
Function. BreakpointLocation connects to multiple
CodeBreakpoints - one per Function that source code location was
generated into.

This CL removes Function reference stored directly in BreakpointLocation
as it is misleading.

This CL also removes some source-code-related attributes(uri/token_pos)
stored in CodeBreakpoint. If CodeBreakpoint code needs that information
it can find it in BreakpointLocation it references.

This should help with further refactoring to support BreakpointLocation
that map to multiple scripts

TEST=ci

Change-Id: I41b82fddc5018ef7df61c9d3a3c4aee657cee528
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192946
Commit-Queue: Alexander Aprelev <aam@google.com>
Reviewed-by: Ben Konyi <bkonyi@google.com>
2021-03-25 17:57:04 +00:00
Ryan Macnak 2c371ff74e [vm, compiler] Respect --use_slow_path in CheckedSmiOp/Comparison.
TEST=ci
Change-Id: Ib2b1a9b067beb1cbeea2b12355e62a45396697f5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192726
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2021-03-25 17:39:24 +00:00
Martin Kustermann 1453eebebc Reland "[vm/compiler] Always allow CSE of LoadStaticField & loosen assertion in AllowsCSE"
Loosening of assertion:

There is no guarantee that a static-final field has been initialized by
the time a function is compiled (in optimized mode) that uses such a
field.

We should therefore loosen the ASSERT to not require the field to be
initialized and rather allows CSE

Enabling of CSE:

In the past we had separate InitStaticField and LoadStaticField. The
load itself had no side-effects and could therefore be moved
arbitrarily. Though we couldn't allow it to be moved before it's
InitStaticField. This dependency was not explicitly made and we
therefore disabled CSE / LICM if the actual field was not initialized
(or field may be reset) - see [0].

Though after merging of InitStaticField and LoadStaticField in [1] there
is no longer a need for tracking any dependencies: The side-effects
of InitStaticField are now reported by LoadStaticField.
=> We can therefore always allow CSE of LoadStaticFieldinstr and
any code motion would respect side-effects of the instruction.

[0] https://codereview.chromium.org/1497783002
[1] https://dart-review.googlesource.com/c/sdk/+/148283

TEST=Fixes flaky test.

Closes https://github.com/dart-lang/sdk/issues/45133
Closes https://github.com/dart-lang/sdk/issues/45446

Change-Id: I4a699e9b1dc9dfec9a91208ed78ed0a0c41f5cad
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192924
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2021-03-25 15:04:43 +00:00
Tess Strickland bf74cad477 [vm/compiler] Change when parents of local functions are retained.
Now they are only retained if one of the following is true:

* The parent is Future.wait or Future.timeout.
* The local function is a generated body of an async/async*/sync*
  function.
* Symbolic stack traces are enabled.

When a local closure's parent is dropped, the parent name will
be printed as `<optimized out>` in places like exceptions.

Changes in Flutter gallery in release-sizeopt mode:

* ARM7: ROData -1.41%, Isolate snapshot -2.35%, Total snapshot -0.54%,
        Isolate heap -1.38%, Total heap -1.38%
* ARM8: ROData -1.55%, Isolate snapshot -2.34%, Total snapshot -0.65%,
        Isolate heap -1.41%, Total heap -1.41%

TEST=Existing tests on CI.

Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-linux-release-x64-try,vm-kernel-precomp-linux-product-x64-try,vm-kernel-precomp-nnbd-linux-release-x64-try, vm-kernel-precomp-dwarf-linux-product-x64-try
Change-Id: I9d05f9e0e30e9f428eff16a15b0f1eeb974419c8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/190023
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2021-03-25 13:47:03 +00:00
Ben Konyi c4bfca9b6a [ dart:io / package:vm_service ] Add HTTP request profiling service
extensions

This change adds HTTP request profiling support to the dart:io service
extensions and removes HTTP request/response body logging to the
timeline due to memory constraints.

Fixes https://github.com/dart-lang/sdk/issues/44950

TEST=pkg/vm_service/test/get_http_profile_test.dart

Change-Id: I85642296c3d6595197f3365022477c7685c452bf
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/189881
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Kenzie Schmoll <kenzieschmoll@google.com>
2021-03-24 23:01:03 +00:00
Ben Konyi b43e89c7f6 [ VM ] Cleanup timeline_test.cc
Updated the timeline cc tests to override Timeline::recorder()
consistently and properly cleanup recorder memory. Fixes some memory
leaks.

Fixes https://github.com/dart-lang/sdk/issues/45445

TEST=timeline_test.cc

Change-Id: I36d69434ec29fa6bf42ffdb06943374b5a412dc0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192960
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
2021-03-24 19:46:32 +00:00
Tess Strickland e4ea8e8d97 [vm] Remove dead Function:IsInFactoryScope method.
TEST=None needed.

Change-Id: I1fa6a0647d4d54f425f1209acbcee81cf7f7af47
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192923
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Auto-Submit: Tess Strickland <sstrickl@google.com>
2021-03-24 16:58:41 +00:00
Martin Kustermann f41277178c Revert "[vm/compiler] Always allow CSE of LoadStaticField & loosen assertion in AllowsCSE"
This reverts commit ff1c9c9916.

Reason for revert: Most likely cause of failures in AOT, e.g.

    python tools/test.py -n dartkp-strong-linux-release-x64 co19/LanguageFeatures/nnbd/late_A06_t05

Original change's description:
> [vm/compiler] Always allow CSE of LoadStaticField & loosen assertion in AllowsCSE
>
> Loosening of assertion:
>
> There is no guarantee that a static-final field has been initialized by
> the time a function is compiled (in optimized mode) that uses such a
> field.
>
> We should therefore loosen the ASSERT to not require the field to be
> initialized and rather allows CSE
>
> Enabling of CSE:
>
> In the past we had separate InitStaticField and LoadStaticField. The
> load itself had no side-effects and could therefore be moved
> arbitrarily. Though we couldn't allow it to be moved before it's
> InitStaticField. This dependency was not explicitly made and we
> therefore disabled CSE / LICM if the actual field was not initialized
> (or field may be reset) - see [0].
>
> Though after merging of InitStaticField and LoadStaticField in [1] there
> is no longer a need for tracking any dependencies: The side-effects
> of InitStaticField are now reported by LoadStaticField.
> => We can therefore always allow CSE of LoadStaticFieldinstr and
> any code motion would respect side-effects of the instruction.
>
> [0] https://codereview.chromium.org/1497783002
> [1] https://dart-review.googlesource.com/c/sdk/+/148283
>
> TEST=Fixes flaky test.
>
> Closes https://github.com/dart-lang/sdk/issues/45133
>
> Change-Id: I547702586d980f5d02fde0e8d12b057ca4d8c363
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192740
> Commit-Queue: Martin Kustermann <kustermann@google.com>
> Reviewed-by: Vyacheslav Egorov <vegorov@google.com>

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

Change-Id: I921c6e8929bbc9f58392d6be6db599dddb8e4b4c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192922
Reviewed-by: Martin Kustermann <kustermann@google.com>
2021-03-24 14:45:13 +00:00
Martin Kustermann 6127386cfa [vm/compiler] Ensure allocate instructions have correctly pruned lazy deopt environment
Since allocation instructions can throw OOM exceptions, they require
deopt information. In general it's rather hard to test that this deopt
information is correct.

In order to test this, this CL makes those IR instructions support lazy
deopt and add tests that exercise this deopt sequence, thereby ensuring
the deoptimization environment is correct.

Issue https://github.com/dart-lang/sdk/issues/45213

TEST=New vm/dart_2/isolates/deopt/*_test.

Change-Id: I6a02dcf5a0c47636f1f0aa4cd8cc0d2b4f032ca0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192687
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2021-03-24 12:48:29 +00:00
Martin Kustermann 6a585a2089 [vm/compiler] Assign deopt id to all allocation instructions
An allocation can - in the slow path - go to runtime which can cause a
pre-allocated OutOfMemory exception to be thrown. It therefore requires
correct deopt information.

Issue https://github.com/dart-lang/sdk/issues/45213

TEST=Existing test suite. A follow-up CL will add actual deoptimization tests for those instructions.

Change-Id: Iaf44904b82ec021919352483f58e9e8fed473955
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192685
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2021-03-24 11:55:44 +00:00
Martin Kustermann bdb77e4f3d [vm/compiler] Mark all allocation IR instructions as potentially throwing
Allocation instructions can end up going to runtime - and in rare cases
- throw a pre-allocated OutOfMemory exception. We have to mark
allocation IR instructions therefore as potentially throwing.

We make this CL separately from follow-up related changes, to see
possible effects on benchmarks.

Issue https://github.com/dart-lang/sdk/issues/45213

TEST=Existing tests. Will add validation of correct deopt environment in future CL.

Change-Id: Ic3ed5c277c222f8432f5f72da18d32182e566dac
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192683
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2021-03-24 11:48:49 +00:00
Martin Kustermann ff1c9c9916 [vm/compiler] Always allow CSE of LoadStaticField & loosen assertion in AllowsCSE
Loosening of assertion:

There is no guarantee that a static-final field has been initialized by
the time a function is compiled (in optimized mode) that uses such a
field.

We should therefore loosen the ASSERT to not require the field to be
initialized and rather allows CSE

Enabling of CSE:

In the past we had separate InitStaticField and LoadStaticField. The
load itself had no side-effects and could therefore be moved
arbitrarily. Though we couldn't allow it to be moved before it's
InitStaticField. This dependency was not explicitly made and we
therefore disabled CSE / LICM if the actual field was not initialized
(or field may be reset) - see [0].

Though after merging of InitStaticField and LoadStaticField in [1] there
is no longer a need for tracking any dependencies: The side-effects
of InitStaticField are now reported by LoadStaticField.
=> We can therefore always allow CSE of LoadStaticFieldinstr and
any code motion would respect side-effects of the instruction.

[0] https://codereview.chromium.org/1497783002
[1] https://dart-review.googlesource.com/c/sdk/+/148283

TEST=Fixes flaky test.

Closes https://github.com/dart-lang/sdk/issues/45133

Change-Id: I547702586d980f5d02fde0e8d12b057ca4d8c363
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192740
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2021-03-24 11:47:39 +00:00
Martin Kustermann 2fa31c9dbd [vm/compiler] Explicitly use near jumps in InstantiateTypeArgumentsInstr
This addresses a small performance regression introduced in a
refactoring (see [0]).

[0] https://dart-review.googlesource.com/c/sdk/+/192185

TEST=Existing test suite.

Change-Id: Ib4a7374d7172ce8a87ac608b2a0afa38cfd89a4e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192741
Reviewed-by: Aske Simon Christensen <askesc@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2021-03-24 04:42:53 +00:00
Ben Konyi 5e88959488 [ Service ] Deprecate CpuSamples.timeSpan
The implementation of CpuSamples.timeSpan has never matched the
specification and has never been returned properly from the service
(returned as 'timespan' instead of 'timeSpan'). Since timeSpan is
effectively the same value as timeExtentMicros, timeExtendMicros should
be used instead.

Fixes https://github.com/dart-lang/sdk/issues/45276

TEST=N/A

Change-Id: I3a1fda81e199718824ad80eb955adb3214ae192c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192780
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
2021-03-23 21:23:31 +00:00
Ben Konyi 19b67901f2 [ VM ] Add missing locks in timeline recorder cleanup
Fixes https://github.com/flutter/flutter/issues/78076

Reverts commits ddcb60a3d9 and 3ecbfd927f.

TEST=runtime/vm/timeline_test.cc

Change-Id: I5eeb66e01a1a1b842edf9183fa876fc97e992398
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192500
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
Auto-Submit: Ben Konyi <bkonyi@google.com>
2021-03-23 20:05:11 +00:00
Martin Kustermann deb946745c [vm/compiler] Correctly prune environment for lazy-deopt in IR instructions
This ensures the following IR instructions use a correctly pruned
lazy-deopt environment:

  * AssertBoolInstr
  * AssertSubtypeInstr
  * InstantiateTypeInstr
  * InstantiateTypeArgumentsInstr

Issue https://github.com/dart-lang/sdk/issues/45213

TEST=New vm/dart_2/isolates/deopt/*_test.

Change-Id: I3d44909f0933c5df109d69e0a61f2d9d7dcc1247
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192184
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2021-03-23 14:03:56 +00:00
Martin Kustermann dec7b4f5b6 [vm/compiler] Avoid pruning deopt environments during SSA construction
Generally speaking, the optimizing compiler should be able to use
(deopt-id, deopt-environ) of any IR instruction and use it as an eager
deopt target (e.g. optimizing compiler might insert TestCidsInstr
with eager (deopt-id, deopt-environ) from AssertAssignable).

Currently we prune the environment eagerly during SSA construction for
some instructions This pruning breaks the above mechanism, since the
deopt-environ isn't usable as eager deopt target. (It is effectively
changing the environment on the IR instruction to be a lazy-deopt
environment).

This CL makes the [Environment] represent both the eager deopt target as
well as the lazy deopt target. It distinguishes the two by remembering
how many slots the eager deopt target needs to be pruned to come to the
lazy deopt target. The SSA construction will populate this information.

Effectively we move the deopt env pruning from SSA construction to the
place when we need it (e.g. inlining, emitting after-call metadata).

Issue https://github.com/dart-lang/sdk/issues/45213

TEST=Refactoring of existing code.

Change-Id: I6c2a117b33f35764e556372484e4beaa294b708d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192141
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2021-03-23 12:22:16 +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
Ryan Macnak 5bfb36daa3 [vm, compiler] Use leaf calls for exp and log.
We already do this for the other functions in dart:math.

TEST=ci
Bug: https://github.com/dart-lang/sdk/issues/45414
Change-Id: Ic1fb1c7cdbbf39eaa4af645219874408988b740b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192522
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2021-03-22 23:14:25 +00:00
Ben Konyi 3b49fd862b [ VM / Service ] Add identityHashCode to @Instance and Instance
responses

Allows for comparing @Instances and Instances with allocation traces and
heap snapshot entries.

TEST=pkg/vm_service/test/get_allocation_traces_test.dart

Change-Id: I6d021b0267f1595332475470961df6e35321ce80
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/188600
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2021-03-22 22:45:57 +00:00
Siva Annamalai 3ecbfd927f Revert "[ VM ] Ensure shared timeline objects are protected by locks"
This reverts commit a62e144882.

Reason for revert: Flutter engine shell tests are timing out because of deadlock.

Original change's description:
> [ VM ] Ensure shared timeline objects are protected by locks
>
> Timeline::Clear() could cause an user after free error if trying to allocate a timeline
> event immediately after clearing the timeline buffer.
>
> Timeline::Cleanup() could result in recorder_ being freed while timeline events are still
> being processed.
>
> Should fix https://github.com/flutter/flutter/issues/78076
>
> TEST=tests/lib/developer/timeline_recorders_test.dart
>
> Change-Id: Ia61b9c93986788c79ef6f2ff1907625b66fb4ea1
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191802
> Commit-Queue: Ben Konyi <bkonyi@google.com>
> Reviewed-by: Siva Annamalai <asiva@google.com>

# Not skipping CQ checks because original CL landed > 1 day ago.

Change-Id: Iac2c19147a3e73df37418e11106f0c5132a35302
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192482
Reviewed-by: Siva Annamalai <asiva@google.com>
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
2021-03-22 18:06:04 +00:00
Siva Annamalai ddcb60a3d9 Revert "[ VM ] Update Timeline tests to not use recorder->Clear()"
This reverts commit f06348108a.

Reason for revert: Flutter engine shell tests are timing out

Original change's description:
> [ VM ] Update Timeline tests to not use recorder->Clear()
>
> Also added IsOwnedByCurrentThread() assert for ReclaimCachedBlocksFromThreadsLocked
>
> Follow up to a62e144882
>
> TEST=runtime/vm/timeline_test.cc
>
> Change-Id: Iec3597b407d99ada1894752f7150a9ae4025bf91
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192243
> Commit-Queue: Ben Konyi <bkonyi@google.com>
> Reviewed-by: Siva Annamalai <asiva@google.com>

# Not skipping CQ checks because original CL landed > 1 day ago.

Change-Id: Id7ba866d7966743bc54659a5d2a632eb31bbf355
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192481
Reviewed-by: Siva Annamalai <asiva@google.com>
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
2021-03-22 17:42:37 +00:00
Chase Latta dfb009d70a [fuchsia] allow injecting the inspect node
This CL allows users to inject the inspect node used inside the
os_fuchsia.cc file instead of having it get created automatically.
This allows us to use inspect in other areas of the flutter/dart
runners. This code needs to be soft transitioned so there will be
follow up CLs after the runners are migrated.

TEST=This was tested against the current version of the runner that does
not use these new codepaths and against a version that does.

Change-Id: I2fff36223aa4021da9cd2051daf6312d2b115492
Bug: fxbug.dev/69558
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/190960
Commit-Queue: Chase Latta <chaselatta@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2021-03-22 17:38:24 +00:00
Vyacheslav Egorov d82ecdfe01 [vm] Fix GCC build
TEST=tools/gn.py --no-clang -m release -a x64, ninja -C out/ReleaseX64

Change-Id: I923ae50de25e8936507c665091d57870a33f7fa1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192306
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2021-03-22 15:08:04 +00:00
Ben Konyi f06348108a [ VM ] Update Timeline tests to not use recorder->Clear()
Also added IsOwnedByCurrentThread() assert for ReclaimCachedBlocksFromThreadsLocked

Follow up to a62e144882

TEST=runtime/vm/timeline_test.cc

Change-Id: Iec3597b407d99ada1894752f7150a9ae4025bf91
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192243
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
2021-03-20 01:35:38 +00:00
Alexander Aprelev dd9b00f7b9 [vm/concurrency/debugger] Fix lock acquisition to avoid deadlocks.
TEST=break_on_function_many_child_isolates_test flaky failures on debug build

Fixes https://github.com/dart-lang/sdk/issues/45391

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

Change-Id: I075318878f1e4b0f3f921377b0281b785274621e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192060
Commit-Queue: Alexander Aprelev <aam@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2021-03-19 22:20:18 +00:00
Alexander Aprelev 2c5b320b14 [vm/concurrency/debugger] Fix pool patching synchronization for lightweight isolates breakpoints.
TEST=service/break_on_function_many_child_isolates_test

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

Change-Id: I15b9d9db938042c89f21700876bf75d932f044a6
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191781
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Aprelev <aam@google.com>
2021-03-19 20:24:48 +00:00
Ben Konyi a62e144882 [ VM ] Ensure shared timeline objects are protected by locks
Timeline::Clear() could cause an user after free error if trying to allocate a timeline
event immediately after clearing the timeline buffer.

Timeline::Cleanup() could result in recorder_ being freed while timeline events are still
being processed.

Should fix https://github.com/flutter/flutter/issues/78076

TEST=tests/lib/developer/timeline_recorders_test.dart

Change-Id: Ia61b9c93986788c79ef6f2ff1907625b66fb4ea1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191802
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
2021-03-19 18:47:32 +00:00
Daco Harkes 77dc74bcd5 [vm/ffi] Support packed Structs
Closes: https://github.com/dart-lang/sdk/issues/38158

This CL implements unaligned access for float/double on arm32, but does
not expose it in an API. Rather it only uses these loads/stores inside
the getters and setters of packed structs.
Bug: https://github.com/dart-lang/sdk/issues/45009

Besides unaligned access for float/double, this CL is mostly a CFE
change. The only VM change is reading the packing in the
`_FfiStructLayout` annotation.

The implementation of using the packing in the VM, and analyzer changes
have landed separately in earlier CLs.

tools/test.py ffi ffi_2
TEST=tests/ffi(_2)/(.*)by_value_(*.)_test.dart

Change-Id: Ic3106ecc626d2e30674a49bf03f65ae12d2b3502
Cq-Include-Trybots: luci.dart.try:dart-sdk-linux-try,dart-sdk-mac-try,dart-sdk-win-try,vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64-try,vm-kernel-asan-linux-release-x64-try,vm-kernel-mac-debug-x64-try,vm-kernel-linux-debug-ia32-try,vm-kernel-linux-debug-x64-try,vm-kernel-nnbd-linux-debug-x64-try,vm-kernel-nnbd-linux-debug-ia32-try,vm-kernel-nnbd-mac-release-x64-try,vm-kernel-nnbd-win-debug-x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-linux-debug-simarm_x64-try,vm-kernel-precomp-nnbd-linux-debug-x64-try,vm-kernel-precomp-win-release-x64-try,vm-kernel-reload-linux-debug-x64-try,vm-kernel-reload-rollback-linux-debug-x64-try,vm-kernel-win-debug-x64-try,vm-kernel-win-debug-ia32-try,vm-precomp-ffi-qemu-linux-release-arm-try,vm-kernel-precomp-obfuscate-linux-release-x64-try,vm-kernel-msan-linux-release-x64-try,vm-kernel-precomp-msan-linux-release-x64-try,vm-kernel-precomp-android-release-arm_x64-try,analyzer-analysis-server-linux-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/186143
Reviewed-by: Aske Simon Christensen <askesc@google.com>
2021-03-19 15:34:42 +00:00
Daco Harkes e7acc69507 [vm/ffi] Support packed Structs backend - part 2
With packed structs, the x64 non-Windows ABI only put structs in CPU/FPU
registers when all it fields happen to be aligned. The previous CL did
not check the alignment of nested structs and structs in inline arrays
based on their offset in an outer struct.

Follow up of: https://dart-review.googlesource.com/c/sdk/+/186142.
Split off: https://dart-review.googlesource.com/c/sdk/+/186143.

Bug: https://github.com/dart-lang/sdk/issues/38158

tools/build.py run_ffi_unit_tests && tools/test.py ffi_unit
TEST=runtime/vm/compiler/ffi/native_type_test.cc
These tests are exercised on vm-precomp-ffi-qemu-linux-release-arm-try.

Change-Id: Ic64bdef2c13ac737dbf58864911f043fc7a3d831
Cq-Include-Trybots: luci.dart.try:vm-precomp-ffi-qemu-linux-release-arm-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191720
Reviewed-by: Aske Simon Christensen <askesc@google.com>
2021-03-19 15:34:42 +00:00
Tess Strickland 6d1ea68cc9 [build] Move from the C++11 to the C++17 standard.
Also includes some example changes using C++14/C++17 features.

TEST=vm/cc/BitField_Assert

Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-win-release-x64-try,vm-kernel-precomp-mac-release-simarm64-try,vm-kernel-precomp-linux-release-x64-try,dart-sdk-win-try,vm-kernel-win-release-x64-try,vm-kernel-win-release-ia32-try,dart-sdk-mac-try,vm-kernel-mac-release-x64-try
Change-Id: Icf5c5267431daf9cea2e61b67131021557675f3c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192183
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
2021-03-19 15:29:57 +00:00
Martin Kustermann caa31f55be [vm/compiler] Make codegen of InstantiateTypeArgumentsInstr sharable
Simplifies work for adding deopt info to this IR instruction.

Issue https://github.com/dart-lang/sdk/issues/45213

TEST=Existing test suite.

Change-Id: Ia0936647f8f025397131b6d89764885a79cba9c7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192185
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2021-03-19 15:04:37 +00:00
Tess Strickland d504084f42 [vm] Fix uses of NullIsAssignableTo at runtime.
NullIsAssignableTo only takes the type to check for nullability.
However, while a type parameter may itself be non-nullable, its
instantiation with a nullable type is nullable.

Thus, this CL adds type instantiation before runtime uses of
NullIsAssignableTo in Function::DoArgumentTypesMatch.

Fixes https://github.com/dart-lang/sdk/issues/45270

TEST=vm/dart/regress_45270

Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-nnbd-linux-release-simarm64-try,vm-kernel-precomp-nnbd-linux-release-simarm_x64-try,vm-kernel-precomp-nnbd-linux-release-x64-try,vm-kernel-nnbd-linux-release-ia32-try,vm-kernel-nnbd-linux-release-simarm-try,vm-kernel-nnbd-linux-release-simarm64-try
Change-Id: Iaefffe9ab6d4d3ad889c4962489b2153d2bbaee1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/190443
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
2021-03-19 12:29:27 +00:00
Johnni Winther 9ad76fe7bd [cfe] Support annotations on function type parameters
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>
2021-03-19 11:52:57 +00:00
Alexander Markov c665bac02d [vm/compiler] Follow-up to SupportsUnboxedInt64 cleanup
This is a follow-up to https://dart-review.googlesource.com/c/sdk/+/191761.
That change removed FlowGraphCompiler::SupportsUnboxedInt64() which is
always true, but incorrectly changed

  return (compiler::target::kSmiBits >= 32) ||
         FlowGraphCompiler::SupportsUnboxedInt64();

to

  return (compiler::target::kSmiBits >= 32);

in CanUnboxInt32(). That resulted in a performance regression on
golem benchmarks as certain methods were not inlined.

This change cleans up CanUnboxInt32() as it is also always true.

TEST=Manually verified one of the benchmarks on IA32.

Change-Id: I9fd72f3adc27e2e31340559cf79df1701bd98da7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192062
Auto-Submit: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2021-03-19 03:56:14 +00:00
Martin Kustermann dbd2c76e22 [vm/compiler] Remove InstanceOf runtime call from IL instruction, call stub instead
Having pushed arguments inside generated code makes deopt environments
incorrect, so we'll move all runtime calls out of IL instructions into
stubs.

Issue https://github.com/dart-lang/sdk/issues/45213

TEST=Existing test suite.

Change-Id: I843ba1ba626c3d704d75d4a7088752100ddfb906
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191900
Reviewed-by: Tess Strickland <sstrickl@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2021-03-19 03:53:24 +00:00
Ryan Macnak da5fa77042 [vm] Avoid populating page table entries for the compressed heap up front.
TEST=ci
Bug: https://github.com/dart-lang/sdk/issues/45331
Change-Id: I1bb8e7ea3fce88dceb28edf8a81cee48db83f144
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191982
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Liam Appelbe <liama@google.com>
2021-03-18 23:04:14 +00:00
Ryan Macnak 19e5899a02 [vm] Switch most non-Instances to compressed pointers.
The following are not compressed: Code, ObjectPool, Context, CallSiteData and subclasses.

Code::instructions_ is uncompressible because the VM doesn't control the address of Instructions when they are loaded via dynamic library.

Loads from the ObjectPool are a frequent occurrence in generated code, and shrinking ObjectPool entries would be offset by longer code sequences to decompress them. Also, some ObjectPool entries contain uncompressible pointers to C functions.

Context is not compressed based on reports from earlier work on compressed pointers that compressing them is disproporately bad for performance. The earlier work used a different, more-expensive compression scheme, so we should reinvestigate this.

CallSiteData et al. are on the hot path for unoptimized code but make up a comparatively small portion of the heap size.

TEST=ci
Change-Id: I9a425fa4e12113c9fd0b51999525d32a7e589a90
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/190600
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Liam Appelbe <liama@google.com>
2021-03-18 22:52:04 +00:00
Ryan Macnak c5eaf317b6 Revert "[vm, compiler] Convert binary Smi ops to graph intrinsics."
This reverts commit 051ec30ff0.

Reason for revert: Failures on ARM32 AOT

Original change's description:
> [vm, compiler] Convert binary Smi ops to graph intrinsics.
>
> Keep left shift as an ASM intrinsic because it includes fallbacks to Mint operations on 32-bit architectures that graph intrinsics aren't good at expressing.
>
> This should be close to neutral on performance, but removes a fair amount of redundant code.
>
> TEST=ci
> Change-Id: Ic9c7d3b2d015ebf31972163a58c6bc9a27bad4ca
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/187164
> Reviewed-by: Alexander Markov <alexmarkov@google.com>
> Commit-Queue: Ryan Macnak <rmacnak@google.com>

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

Change-Id: I2a08df5b4aa0269a6237a3d967729c155c88a1c7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/192061
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2021-03-18 22:11:56 +00:00
Ryan Macnak 051ec30ff0 [vm, compiler] Convert binary Smi ops to graph intrinsics.
Keep left shift as an ASM intrinsic because it includes fallbacks to Mint operations on 32-bit architectures that graph intrinsics aren't good at expressing.

This should be close to neutral on performance, but removes a fair amount of redundant code.

TEST=ci
Change-Id: Ic9c7d3b2d015ebf31972163a58c6bc9a27bad4ca
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/187164
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2021-03-18 20:33:34 +00:00
Ryan Macnak 08295a8cb3 [vm, compiler] Consider T{_IntegerImplementation} as equivalent to T{int} for optimization purposes.
TEST=ci
Bug: https://github.com/dart-lang/sdk/issues/45297
Change-Id: Ic6a8956ad6344058c480e20018e876f5aae4c610
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191662
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2021-03-18 17:59:03 +00:00
Alexander Markov 817582a155 [vm/compiler] Cleanup --no-unbox_mints flag and SupportsUnboxedInt64()
Unboxed int64 are supported on all architectures which Dart VM supports.
The only was to disable support for unboxed int64 is to use
--no-unbox_mints flag, which is not used and not tested.
This change cleans up this flag and corresponding compiler predicates.

TEST=ci

Change-Id: Ib667319eaf87f0ded8bf9d9505272a3693a9e63e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191761
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2021-03-18 17:49:28 +00:00
Tess Strickland 5fc2ba5fc4 [platform] Adjust Utils::StringHash() for misaligned starts.
Fixes https://github.com/dart-lang/sdk/issues/45290

TEST=vm/cc/StringHash

Cq-Include-Trybots: luci.dart.try:vm-kernel-ubsan-linux-release-x64-try,vm-kernel-precomp-ubsan-linux-release-x64-try
Change-Id: I7c1ef59cece77c6c9b705116e956e945bfcb55d4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/190882
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Liam Appelbe <liama@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2021-03-18 17:42:53 +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 Aprelev 7b94d56d67 [observatory] Provide isolate for send data events because observatory expects it for write events.
_ConsoleStreamPrinter::onEvent expects isolate on WriteEvent. It's absence causes exceptions in Observatory. This started with https://dart-review.googlesource.com/c/sdk/+/190303

TEST=updated capture_stdio_test with isolate expectations; run observatory to ensure to exceptions are generated

Change-Id: I73efe9c1ab5b0d779d9432fd64ad5ccc5fcc14ca
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191661
Commit-Queue: Alexander Aprelev <aam@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2021-03-17 23:30:47 +00:00
Ryan Macnak 2e56467afb [vm, compiler] Unpredicate boolean loads on x64.
This reverts part of c9e10c931c, which Golem reports as negative for Xeon.

Generate dist8 branches for these cases.

TEST=ci
Change-Id: I77432e478c0d3a46868a530a2d75036994c8809e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191469
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2021-03-17 22:59:07 +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
Alexander Aprelev 4baf7e5e3d [vm/concurrency] Introduce GroupDebugger that takes CodeBreakpoints management away from isolate Debugger.
CodeBreakpoint class tracks patching of the call targets for the purpose of routing the call to the debugger runtime.
With this CL CodeBreakpoint instance is managed by GroupDebugger, debugger class owned by IsolateGroup, and can be associated with multiple BreakpointLocation, one location per isolate that set a breakpoint at particular code location.

TEST=observatory/tests/service/break_on_function_child_isolate_test

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

Change-Id: I3b3d0974a0fb9668742e5c1e2a2ce13b84b1d630
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/190732
Commit-Queue: Alexander Aprelev <aam@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2021-03-17 18:03:14 +00:00
Martin Kustermann 4c0edc6720 [vm] Extend BitField class to allow storing negative numbers by sign-extending when decoding
Will be used to encode deopt-id (which can be -1) into bit field.

Issue https://github.com/dart-lang/sdk/issues/45213

TEST=Newly added vm/cc/BitFields_SignedField.

Change-Id: I537820d813a191006388b8bfc08a3bac6f23f79f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191360
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Tess Strickland <sstrickl@google.com>
2021-03-17 15:27:32 +00:00