Commit Graph

14786 Commits

Author SHA1 Message Date
Aart Bik fa092aa77b [vm/compiler] actual string constant propagation
Rationale:
A bit more constant propagation for strings, this time
using actual values (rather than just testing identity).
Note that the worklist iteration broke down a bit for
this added case since push arguments do not have a
use-link to the call. Also note that the added cases
have some overlap with the inliner, but are able to
propagate values for different cases.

https://github.com/dart-lang/sdk/issues/35882

Change-Id: I380fca6ab90933e6342cd0572101cb94ed8c78ab
Reviewed-on: https://dart-review.googlesource.com/c/92861
Commit-Queue: Aart Bik <ajcbik@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2019-02-13 21:42:38 +00:00
asiva 44eb626186 [VM} Fix script URLs for dart:* libraries
The script URLs for core libraries were being recorded as follows
- dart:core for org-dartlang-sdk:///sdk/lib/core/core.dart
- dart:core/runtime/libcore_patch.dart for org-dartlang-sdk:///runtime/lib/core_patch.dart
- dart:io/runtime/binfilter_patch.dart for org-dartlang-sdk:///runtime/bin/filter_patch.dart

Now we record them as
- dart:core/core.dart for org-dartlang-sdk:///sdk/lib/core/core.dart
- dart:core/runtime/lib/core_patch.dart for org-dartlang-sdk:///runtime/lib/core_patch.dart
- dart:io/runtime/bin/filter_patch.dart for org-dartlang-sdk:///runtime/bin/filter_patch.dart

Change-Id: I645939e7ba937034471044fb492a5ecdb9a50bf5
Reviewed-on: https://dart-review.googlesource.com/c/92922
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
2019-02-13 21:27:47 +00:00
Ryan Macnak 0f24b9e7ae [standalone] Name dart:io threads, take 2.
Mac's pthread_setname_np assumes the current thread.

Bug: US-588
Change-Id: Ibbddd1f7bffeab10fd470a6176f68b1c0440aa99
Reviewed-on: https://dart-review.googlesource.com/c/93120
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-02-13 20:29:46 +00:00
Ryan Macnak 7329247892 [vm/tools] Add Graph Explorer to visualize output of --write_v8_snapshot_profile_to.
In particular, this tool can produce treemap visualizations of the dominator tree.

Change-Id: If582c80213b4bdec9ff8ee4d5d61a1e15bf342e5
Reviewed-on: https://dart-review.googlesource.com/c/92900
Reviewed-by: Aart Bik <ajcbik@google.com>
2019-02-13 19:30:37 +00:00
Ryan Macnak d566a674d0 Revert "[standalone] Name dart:io threads."
This reverts commit cc3218b771.

Reason for revert: Mac build

Original change's description:
> [standalone] Name dart:io threads.
> 
> Change-Id: I5f5248366b39afab96a8b70b4f107ec5134b84f4
> Reviewed-on: https://dart-review.googlesource.com/c/92960
> Reviewed-by: Zach Anderson <zra@google.com>
> Commit-Queue: Ryan Macnak <rmacnak@google.com>

TBR=rmacnak@google.com,zra@google.com,asiva@google.com

Change-Id: I9071c955d4710f8146a661d15fa980f237b6eb81
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/93064
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-02-13 18:04:49 +00:00
Ryan Macnak cc3218b771 [standalone] Name dart:io threads.
Change-Id: I5f5248366b39afab96a8b70b4f107ec5134b84f4
Reviewed-on: https://dart-review.googlesource.com/c/92960
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-02-13 17:23:56 +00:00
Martin Kustermann 525b43d747 [vm] Decouple intrinsifier code from runtime
This is the next step towards preventing compiler from directly peeking
into runtime and instead interact with runtime through a well defined
surface.

This CL decouples the hand-written intrinsifier code from the runtime:

  * the intrinsifier is split up into a GraphIntrinsifier and AsmIntrinsifier
  * the recognized methods list is moved to a separate .h file
  * all intrinsifier code is moved into dart::compiler namespace
  * the AsmIntrinsifier is only interacting with RT through runtime_api.h

Issue https://github.com/dart-lang/sdk/issues/31709

Change-Id: I0a73ad620e051dd49c9db7da3241212b3b74ccdd
Reviewed-on: https://dart-review.googlesource.com/c/92740
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Aart Bik <ajcbik@google.com>
2019-02-13 17:22:56 +00:00
Samir Jindel 010a12330e [vm] Fix ThrowErrorSlowPath-derived instructions (e.g. CheckNull) in JIT mode.
Previously these instructions were not safe to use on JIT, because they
crated catch-entry moves which are not used in JIT.

Now we assign deopt-infos to these slow paths so they can handle exceptions
correctly in JIT.

I considered removing uses of CheckNull in JIT mode, but I did not find a simple
replacement for all the existing uses.

Fixes #35887.

Change-Id: I05dfb46200679934d0ff6114cae8723f4908af8e
Reviewed-on: https://dart-review.googlesource.com/c/92783
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Samir Jindel <sjindel@google.com>
Auto-Submit: Samir Jindel <sjindel@google.com>
2019-02-13 16:39:55 +00:00
Daco Harkes d6a763ebd1 [vm / library] dart:ffi fix android build
Change-Id: I56f45b13f7c8d92e75f8c596290c2666276f65a1
Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-android-release-arm-try
Reviewed-on: https://dart-review.googlesource.com/c/93026
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Commit-Queue: Samir Jindel <sjindel@google.com>
Auto-Submit: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Samir Jindel <sjindel@google.com>
2019-02-13 14:55:58 +00:00
Daco Harkes 7d46d4b5cb [vm / library] Foreign function interface prototype
Prototype for `dart:ffi` on Linux/MacOS x64 in JIT mode.
`dart:ffi` is experimental and its API is likely to change in the future.
Progress and design decisions are tracked in https://github.com/dart-lang/sdk/projects/13


issue: https://github.com/dart-lang/sdk/issues/34452
Change-Id: Ifa4566388e42c8757f154741d11e303465ef305d
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, vm-kernel-mac-debug-x64-try, vm-kernel-asan-linux-release-x64
Reviewed-on: https://dart-review.googlesource.com/c/80124
Reviewed-by: Samir Jindel <sjindel@google.com>
Auto-Submit: Daco Harkes <dacoharkes@google.com>
2019-02-13 12:42:47 +00:00
Lasse R.H. Nielsen 671865cd1a Fix JSON parser.
JSON parser was not rewritten when integers became fixed-size, so
some large integers could overflow silently and give the wrong
result, as could some doubles where the pre-decimal point digits
overflowed an `int`. Also added overflow protection for exponent.

Change-Id: I02941272c36fba4b9226e324936aebd4a5c5aa3b
Reviewed-on: https://dart-review.googlesource.com/c/91521
Commit-Queue: Lasse R.H. Nielsen <lrn@google.com>
Reviewed-by: Leaf Petersen <leafp@google.com>
2019-02-13 11:06:35 +00:00
Aart Bik c8b28c4cf9 [vm/compiler] graph checker addition
Rationale:
Loop part was not checking anything (no ASSERT).
Also, made test more strict (block should be
in all enveloping loops).
Change-Id: Ib918afa9c130dc8aa26cd8e8104e735075ff1176
Reviewed-on: https://dart-review.googlesource.com/c/92863
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Aart Bik <ajcbik@google.com>
2019-02-13 00:38:13 +00:00
Ryan Macnak 78509055b6 [vm] Add names for more types to the V8 snapshot profile output.
Fix some types of base objects in the V8 snapshot profile output.

Rename ICData::ic_data_ to entries_ as it does not point to an ICData.

Change-Id: Ie80974e2eb741810a5f540dd40e5d60a519d8e4e
Reviewed-on: https://dart-review.googlesource.com/c/92665
Reviewed-by: Samir Jindel <sjindel@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-02-12 17:54:58 +00:00
Martin Kustermann 660cf26dbb Reland "[vm] Decouple stub code from runtime"
This is the next step towards preventing compiler from directly peeking
into runtime and instead interact with runtime through a well defined
surface.

This CL decouples the hand-written stub codes from the runtime. The
target architecture dependent stubs are moved to
dart::compiler::StubCodeCompiler which use dart::compiler::target:*
for accessing any runtime related code.

The generation of type testing stubs is moved to separate files for the
time being.

Issue https://github.com/dart-lang/sdk/issues/31709

Change-Id: Icd0995b18a7bac496b1e12231cf437943f5c94f1
Reviewed-on: https://dart-review.googlesource.com/c/92720
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
Auto-Submit: Martin Kustermann <kustermann@google.com>
2019-02-12 13:52:28 +00:00
Chinmay Garde 0a7dcf17eb Attempt tracing to /sys/kernel/tracing/trace_marker on Linux.
Change-Id: I845e74a7b15da73b8e4d1d60dbe0b8a5df28b9c9
Reviewed-on: https://dart-review.googlesource.com/c/92628
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-02-12 01:59:15 +00:00
Ben Konyi 30f9143831 Revert "[vm] Decouple stub code from runtime." and "[VM/Decoupling] Follow-up change to decoupling of stub_code: Fix missing "!""
This reverts commits a8e2dfdb9b and 473c424fe2.

Change-Id: Id5f67541adcdcb4fa0900a34fa389149f556929f
Reviewed-on: https://dart-review.googlesource.com/c/92667
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
2019-02-12 00:59:23 +00:00
Ryan Macnak ecd7a88606 [vm, gc] Don't enqueue pre-marked Instructions.
Change-Id: Ic9a3b5f83fc45e363162c0531d474a663d243c6c
Reviewed-on: https://dart-review.googlesource.com/c/92666
Reviewed-by: Régis Crelier <regis@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-02-12 00:53:44 +00:00
Ryan Macnak 553e20863c [vm] Remove some dead code from the old front end.
Change-Id: I9c26cbc617b25dbd04e4dfd46a68307e88eec60e
Reviewed-on: https://dart-review.googlesource.com/c/92481
Reviewed-by: Régis Crelier <regis@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-02-11 21:56:47 +00:00
Samir Jindel 754e5f404c Revert "[vm/extensions] Fix Loader::ReloadNativeExtensions(...)."
This reverts commit 4118d3c793.

Crashes on hot reload/rollback bots.

Original change's description:
> [vm/extensions] Fix Loader::ReloadNativeExtensions(...).
> 
> This method was not doing anything since the switch to Dart 2
> because extensions no longer were added as imports to the libraries
> which loaded them.
> 
> This is a commandeer of https://dart-review.googlesource.com/c/sdk/+/90240 with a bug fix.
> 
> Change-Id: Idfe2ec16ae714b5a31ed53332da6704248949915
> Reviewed-on: https://dart-review.googlesource.com/c/92180
> Commit-Queue: Samir Jindel <sjindel@google.com>
> Reviewed-by: Ryan Macnak <rmacnak@google.com>

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

Change-Id: If8c8d6cf8ee2cb0a354601f94c609d3d7b5ddf03
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/92640
Reviewed-by: Samir Jindel <sjindel@google.com>
2019-02-11 18:16:21 +00:00
Samir Jindel 4118d3c793 [vm/extensions] Fix Loader::ReloadNativeExtensions(...).
This method was not doing anything since the switch to Dart 2
because extensions no longer were added as imports to the libraries
which loaded them.

This is a commandeer of https://dart-review.googlesource.com/c/sdk/+/90240 with a bug fix.

Change-Id: Idfe2ec16ae714b5a31ed53332da6704248949915
Reviewed-on: https://dart-review.googlesource.com/c/92180
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2019-02-11 16:52:20 +00:00
Martin Kustermann 473c424fe2 [VM/Decoupling] Follow-up change to decoupling of stub_code: Fix missing "!"
Change-Id: I5eddd8c1484a70c85851e9a94a61fbbdbed731d5
Reviewed-on: https://dart-review.googlesource.com/c/92565
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
Auto-Submit: Martin Kustermann <kustermann@google.com>
2019-02-11 13:41:44 +00:00
Martin Kustermann a8e2dfdb9b [vm] Decouple stub code from runtime.
This is the next step towards preventing compiler from directly peeking
into runtime and instead interact with runtime through a well defined
surface.

This CL decouples the hand-written stub codes from the runtime. The
target architecture dependent stubs are moved to
dart::compiler::StubCodeCompiler which use dart::compiler::target:*
for accessing any runtime related code.

The generation of type testing stubs is moved to separate files for the
time being.

Issue https://github.com/dart-lang/sdk/issues/31709

Change-Id: I1b4f1cca0acb704b30b80eca7f634734772389b5
Reviewed-on: https://dart-review.googlesource.com/c/92138
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Aart Bik <ajcbik@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2019-02-11 11:24:00 +00:00
Aart Bik 32603d5626 [vm/compiler] improve equality constant folding
Rationale:
Static calls were formerly unexplored in our constant
folding. This is a first step towards making the
constant folder aware of semantics of recognized methods.

https://github.com/dart-lang/sdk/issues/35882

Change-Id: Id6e366f4d25f08a618931fc3c8a8c065f6358feb
Reviewed-on: https://dart-review.googlesource.com/c/92410
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Aart Bik <ajcbik@google.com>
2019-02-09 01:09:39 +00:00
Ryan Macnak 174d6fec3d [vm] Increase the size of the irregexp interpreter's backtracing stack.
The new size more closely matches the size available on the call stack to the compiled implementation of irregexp.

Bug: https://github.com/flutter/flutter/issues/27273
Change-Id: I131b4ddd5ab462a65c2033fb509ff9f7c2d3e1ea
Reviewed-on: https://dart-review.googlesource.com/c/92403
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
2019-02-08 18:52:05 +00:00
Ryan Macnak 128139be71 [vm] Rename RawObject::Size to RawObject::HeapSize.
To avoid confusion between the heap size (includes header and rounding up) and number-of-elements size or payload size.

Change-Id: I714c4e8cec92d7ef963de39474d2a1bb23e5b4a3
Reviewed-on: https://dart-review.googlesource.com/c/92400
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Aart Bik <ajcbik@google.com>
2019-02-08 18:48:46 +00:00
Aart Bik d136a35244 [dart/fuzzer] Add O3 as random command line switch
Also further refactors switch selection from naming.
The JIT stress execution modes don't really need
their own visible name (you cannot really control
which stress test to use anyway with --mode), so it's
cleaner to remove the idea of controlling switches
altogether.

Change-Id: I98aa71ce8653013fb45a4c482d7b4c5a02143a55
Reviewed-on: https://dart-review.googlesource.com/c/92386
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Aart Bik <ajcbik@google.com>
2019-02-08 18:04:05 +00:00
Alexander Markov eab295e521 [vm/bytecode] Split bytecode reading from kernel metadata
Change-Id: I8852379f6c01f3993cddb36f5211b637fd927ba1
Reviewed-on: https://dart-review.googlesource.com/c/92388
Commit-Queue: Régis Crelier <regis@google.com>
Auto-Submit: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
2019-02-08 17:41:25 +00:00
Ryan Macnak 3afac84840 [vm, aot] Remove KernelProgramInfo etc before Symbols::Compact.
Eliminates some symbols that were memory-reachable but not snapshot-reachable.

Compact the canonical type and type arguments tables along with the symbol table.


flutter_gallery, Android release
Total(CodeSize): 11158045 -> 11055480 (-0.92%)

Change-Id: I63bd1353906ea66c6f82a932cff57f7c25331200
Reviewed-on: https://dart-review.googlesource.com/c/92221
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-02-08 17:16:26 +00:00
Aart Bik b05b8777d4 [dart/fuzzer] Refactor switch setup, add VFP to ARM
Rationale:
The fuzz test constructors were getting a bit convoluted
with mode specific setup. This CL refactors the flag
and mode name setup into the factory method, making
all constructors small again.
Change-Id: I5fd34e089315c89e674c7b28a4f298143fbeaeea
Reviewed-on: https://dart-review.googlesource.com/c/92380
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Aart Bik <ajcbik@google.com>
2019-02-07 22:41:18 +00:00
Adam Barth 2710834272 [fuchsia] Update path to fuchsia.timezone
The path to this target has changed.

Change-Id: I35344e2aed75c7bce01acb85b8219fa660165338
Reviewed-on: https://dart-review.googlesource.com/c/92301
Auto-Submit: Adam Barth <abarth@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Zach Anderson <zra@google.com>
2019-02-07 22:01:08 +00:00
Aart Bik dbf4900c99 [vm/tools] Fix issues with snapshot size reporting
Rationale:
This fixes the following three issues to get byte-exact
snapshot size difference reporting, which makes optimizing
for code size a lot easier.

Issues:
(1) reports the slightly more accurate raw size
(2) accumulates dups in the json
    (before we only did bookkeeping for one)
(3) avoid non-deterministic parts in names
    (this resulted in reporting baffling method size
     differences against the same layout, even though
     the aggregate difference added up to 0).

https://github.com/dart-lang/sdk/issues/35323

Change-Id: Ia6abe50ab8694fe54906e28a3b3375ed99ace9df
Reviewed-on: https://dart-review.googlesource.com/c/92320
Commit-Queue: Aart Bik <ajcbik@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2019-02-07 19:42:26 +00:00
Alexander Markov a0516965b4 [vm] Load top-level functions and variables lazily
LoadKernel part of startup: 409ms -> 196-210ms.
FinishTopLevelClassLoading: 15ms

Change-Id: If47f06fe235a70ed08e6a3d75e8f871edae5e45c
Reviewed-on: https://dart-review.googlesource.com/c/92155
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
2019-02-07 18:12:34 +00:00
Ben Konyi fea5413d5a [ VM ] Fix hang of Flutter engine tests caused by global RuntimeEntry objects being destroyed when exit() is called when the VM hasn't finished shutting down.
This is due to how Windows destroys objects as destroyed objects have
their vtables reset to the vtable of the base class. If this happens
when an isolate hasn't finished shutting down and a virtual function
which is overriding a pure virtual function from the base class is
called, _purecall() is invoked and attempts to call exit() again which
leads to a deadlock.

See issue #35855 for more details.

Change-Id: I93a0e00549e7ee87a717a6cde01bf0848050384d
Reviewed-on: https://dart-review.googlesource.com/c/92000
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
2019-02-06 22:37:24 +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 d972c2b7b7 [vm] Update raw_object_fields.cc after 7e81f56a.
Change-Id: I5b738c31a0bd056c7720e0b0d66ec0c69cbae950
Reviewed-on: https://dart-review.googlesource.com/c/92129
Reviewed-by: Samir Jindel <sjindel@google.com>
2019-02-06 12:20:22 +00:00
Zichang Guo 7e81f56ad7 Save Initializer for field and pass into debugger to enable breakpoint setting.
Change-Id: I9f7afcdd057f161873d3c6e47cb0ce171806f301
Reviewed-on: https://dart-review.googlesource.com/c/91120
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Zichang Guo <zichangguo@google.com>
2019-02-06 03:20:35 +00:00
Alexander Markov e83b309354 [vm] Remove single-stepping from PRODUCT
Change-Id: I2884cc1feff563d05ca7d31f6154fbfda7922544
Reviewed-on: https://dart-review.googlesource.com/c/92025
Auto-Submit: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Régis Crelier <regis@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
2019-02-05 21:51:55 +00:00
Alexander Markov 336969538c [vm/bytecode] Revise representation of types, constants and calls in bytecode
* Type arguments are moved to global object table (and de-duplicated).
* Finalize non-recursive generic types at bytecode generation time.
* Constants are moved to global object table (and de-duplicated).
* ICData creation is avoided for direct calls.
* Interface calls reference target member instead of selector name.

Size of a dilp files: 17868K => 15896K (-11%).

Change-Id: I0c9bf338137a0fae6ed90ab6b125ed2b24a1a8ad
Reviewed-on: https://dart-review.googlesource.com/c/91108
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
2019-02-05 20:13:45 +00:00
Alexander Markov 9afb65d7f1 [vm] Fixes for recursive class loading
In --compile-all mode with CL [1] when NoSuchMethodError was finalized
the following happened:

ClassFinalizer::FinalizeClass calls KernelLoader::FinishLoading,
which calls KernelLoader::LoadProcedure to load precedures,
which calls Library::GetMetadata, which runs Dart code and triggers
background compilation; BackgroundCompiler::Start calls finalization of
NoSuchMethodError class recursively.

FinalizeClass calls FinishLoading for the second time, but this time
background compilation is not invoked, FinishLoading completes
and all members are finalized. After returning from recursive finalization,
the first FinishLoading proceeds and overwrites already finalized
functions with freshly loaded non-finalized functions.
As class is already marked as finalized, functions are not finalized
for the second time, causing crash later.

This CL fixes 2 problems related to recursive class loading:

* When fields are loaded, they should replace previous fields
  rather than appending them. This ensures that recursive loading
  won't add several duplicate fields (potential problem).

* IsLoaded flag is added to a class and checked after loading each
  procedure. If class happens to be loaded already, then FinishLoading
  should return immediately, discarding its loaded functions.
  This prevents overwriting finalized functions with freshly loaded.

Also, this change adds guard against repeated class loading (may happen
during recursive attempts of class finalization).

[1] https://dart-review.googlesource.com/c/sdk/+/91108

Change-Id: I5279a73f56fde26a8d9068912b3e08829ceaa4a8
Reviewed-on: https://dart-review.googlesource.com/c/91981
Auto-Submit: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
Commit-Queue: Régis Crelier <regis@google.com>
2019-02-05 18:43:05 +00:00
Ryan Macnak d6caaeeebb [vm] Have Dart_TimelineEvent respect SUPPORT_TIMELINE instead of PRODUCT.
Remove unused Dart_GlobalTimelineGetTrace and Dart_SetEmbedderTimelineCallbacks, leftover from the days of Mojo.

Change-Id: Id9ea56734155c9c0ef4f23956e0043dddd5070c0
Reviewed-on: https://dart-review.googlesource.com/c/91768
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-02-05 18:26:05 +00:00
Martin Kustermann 7213306aad [VM/Compiler] Do not use unboxed doubles if target CPU does not support VFP
The optimizing compiler should never emit IL instructions which need FPU
registers/instructions if FlowGraphCompiler::SupportsUnboxedDoubles() is false.

Issue https://github.com/flutter/flutter/issues/26773

Change-Id: Ia72d239f448ee3ec7d156e70bfde3ba9501deccd
Reviewed-on: https://dart-review.googlesource.com/c/91830
Reviewed-by: Aart Bik <ajcbik@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2019-02-05 09:57:52 +00:00
Samir Jindel 4b28312282 [vm] Remove reference to vm/flag_list.h in runtime/bin/main.cc.
Change-Id: I3a18487a0ef7ed9d50d54f539b9a815eb334c6b9
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/91923
Commit-Queue: Siva Annamalai <asiva@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
Auto-Submit: Samir Jindel <sjindel@google.com>
2019-02-05 03:54:41 +00:00
Alexander Markov b59d5a2be9 [vm] Relax assertion about duplicated direct implementors
When mixin application is transformed, mixin is added to the end of
interfaces list. This may cause assertion failure if the same class
is used as mixin and mentioned among implemented interfaces.
This CL relaxes that assertion for mixins as this duplication is very
rare and seems harmless.

Note that it would not be valid to remove duplicated interface/mixin
from the list of interfaces, as it would break dart:mirrors in this case:
dart:mirrors needs to reflect duplicated interface/mixin both in
ClassMirror.superinterfaces (which is populated from the
list of interfaces without last element) and ClassMirror.mixin (the last
element in the list of interfaces).

Fixes https://github.com/dart-lang/sdk/issues/35854

Change-Id: I9b986f7759a76cb6f963ebd837e9ea26f6242f8e
Reviewed-on: https://dart-review.googlesource.com/c/91961
Reviewed-by: Régis Crelier <regis@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2019-02-05 00:35:02 +00:00
Aart Bik 5823be65af [vm/compiler] Continued graph checker development (reland)
Rationale:
More assumption verified. Found some true issues.

Relands:
https://dart-review.googlesource.com/c/sdk/+/91702
with some fixes

https://github.com/dart-lang/sdk/issues/35803
https://github.com/dart-lang/sdk/issues/35819
https://github.com/dart-lang/sdk/issues/35848
https://github.com/dart-lang/sdk/issues/35849

Change-Id: I26101f8af3bd3fcdd5868d0882f8f096ab02b512
Reviewed-on: https://dart-review.googlesource.com/c/91945
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Aart Bik <ajcbik@google.com>
2019-02-04 23:18:42 +00:00
Ryan Macnak db7f848632 [vm] Remove dead BigInt code.
Change-Id: I2b7169c2cd0ea62849e67e8f34808bf566cde2fe
Reviewed-on: https://dart-review.googlesource.com/c/91944
Reviewed-by: Régis Crelier <regis@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-02-04 22:40:42 +00:00
Alexander Markov 569ee07f91 [vm] Cleanup class finalization checks
Change-Id: If262b5fd271ce8fa0aaa49959f808792f66578cd
Reviewed-on: https://dart-review.googlesource.com/c/90580
Auto-Submit: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2019-02-04 21:00:49 +00:00
Alexander Markov bd51d6f120 [vm] Build scopes for implicit getters of static const fields
Usually implicit getters are not used for static const fields.
However, coverage can force their compilation. In order to compile
implicit getter of a static const field, its initializer is
evaluated in a constant evaluator. Initializer may have Let
expressions and can declare local variables.

Before this fix scope builder was not visiting initializer body for
implicit getters, which caused crashes in constant evaluator.

Fixes https://github.com/dart-lang/sdk/issues/35808

Change-Id: I807aeaa90886d84169c27275abdd0cfd0f3ff777
Reviewed-on: https://dart-review.googlesource.com/c/91705
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Auto-Submit: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2019-02-04 19:03:39 +00:00
Aart Bik b876d12f03 Revert "[vm/compiler] Continued graph checker development"
This reverts commit b01697ba5a.

Reason for revert: we have two check fails on bleeding edge
                    reverting this until we found the underlying issue

Original change's description:
> [vm/compiler] Continued graph checker development
> 
> Rationale:
> More assumption verified. Found some true issues.
> 
> Bug:
> https://github.com/dart-lang/sdk/issues/35803
> https://github.com/dart-lang/sdk/issues/35819
> 
> Change-Id: I5526f203925fb320aa504b4e142fcf987579300a
> Reviewed-on: https://dart-review.googlesource.com/c/91702
> Commit-Queue: Aart Bik <ajcbik@google.com>
> Reviewed-by: Aart Bik <ajcbik@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>
> Reviewed-by: Alexander Markov <alexmarkov@google.com>

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

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

Change-Id: Ifd7ee46c42d82312f762cac7021e6a55deac83fd
Reviewed-on: https://dart-review.googlesource.com/c/91943
Reviewed-by: Aart Bik <ajcbik@google.com>
Commit-Queue: Aart Bik <ajcbik@google.com>
2019-02-04 18:11:52 +00:00
Aart Bik b01697ba5a [vm/compiler] Continued graph checker development
Rationale:
More assumption verified. Found some true issues.

Bug:
https://github.com/dart-lang/sdk/issues/35803
https://github.com/dart-lang/sdk/issues/35819

Change-Id: I5526f203925fb320aa504b4e142fcf987579300a
Reviewed-on: https://dart-review.googlesource.com/c/91702
Commit-Queue: Aart Bik <ajcbik@google.com>
Reviewed-by: Aart Bik <ajcbik@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2019-02-01 19:14:27 +00:00
Jens Johansen eb956a2516 Add synthetic bit to Library flags
Fasta can generate synthetic libraries.
Previously we didn't include them when serializing, but that leaves
references in the binary to libraries that doesn't exist which isn't
ideal.

This change includes them, and adds a flag to kernel Libraries such that
we know they are synthetic.

Change-Id: Ied25a21cd1f384d318347021bc7ec18dae3a4e05
Reviewed-on: https://dart-review.googlesource.com/c/91722
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Peter von der Ahé <ahe@google.com>
2019-02-01 11:00:26 +00:00