Commit Graph

125 Commits

Author SHA1 Message Date
Samir Jindel f03ddc496b [vm/ffi] Don't make force-optimized code masquerade as unoptimized code.
Instead, we set a bit on force-optimized code so that deoptimization knows to skip it and exception
handling will execute catch-entry moves.

In addition we don't throw away deoptimization info for these codes, so that exception handling
works.

Bug: dartbug.com/37311
Change-Id: If5bcff41a98c0053c581648a9ee22b3302ceea04
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/106740
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2019-06-24 15:25:53 +00:00
Régis Crelier 4403c58640 [vm] Delete obsolete await_token_positions_ from Code object and flow graph.
Change-Id: I80fff049c8d0b45ec7276b1d0ae71f492ad97b9a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/106564
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Régis Crelier <regis@google.com>
2019-06-19 23:38:02 +00:00
Matthew Dempsky 303dfdf9b5 [vm] Use std::unique_ptr for ThreadPool::Task
Updates #37244.

Change-Id: I32a5180a17fe43be5e18367d784cf756dffc6aeb
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/106009
Commit-Queue: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
2019-06-18 17:51:10 +00:00
Ryan Macnak 1e24fe7d69 [vm, compiler] Specialize unoptimized monomorphic and megamorphic calls.
dart-bytecode, arm64:            +4.742% geomean
dart-bytecode-jit-unopt, arm64: +12.73% geomean
dart2js-compile, x64:            +3.635% geomean

In the polymorphic and unlinked cases, call to a stub the does a linear scan against an ICData.

In the monomorphic case, call to a prologue of the expected target function that checks the expected receiver class. There is additional indirection in the JIT version compared to the AOT version to also tick a usage counter so the inliner can make good decisions.

In the megamorphic case, call to a stub that does a hash table lookup against a MegamorphicCache.

Megamorphic call sites face a loss of precision in usage counts. The call site count is not recorded and the usage counter of the target function is used as an approximation.

Monomorphic and megamorphic calls sites are reset to the polymorphic/unlinked state on hot reload.

Monomorphic and megamorphic calls sites do not check the stepping state, so they are reset to the polymorphic/unlinked state when stepping begins and disabled.

Back-edges now increment the usage counter in addition to checking it. This ensures function with loops containing monomorphic calls will eventually cross the optimization threshold.

Fixed backwards use of kMonomorphicEntryOffset and kPolymorphicEntryOffset.

Fixed C stack overflow when bouncing between the KBC interpreter and a simulator.

Bug: https://github.com/dart-lang/sdk/issues/26780
Bug: https://github.com/dart-lang/sdk/issues/36409
Bug: https://github.com/dart-lang/sdk/issues/36731
Change-Id: I78a49cccd962703a459288e71ce246ed845df474
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/102820
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2019-06-12 21:56:53 +00:00
Ryan Macnak 2be92b08c2 [vm] Remove more of the Dart 1 compiler.
Change-Id: Ib00e040f44275b9437e7fc622bf285607f4e4124
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/105681
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-06-12 01:00:29 +00:00
Régis Crelier cddf2bbdfe [vm/debugger] Support debugging of interpreted frames.
Change-Id: Iaf59e6ed887ed973fcfc7f1c414ad52ef98f01d7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/100270
Commit-Queue: Régis Crelier <regis@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2019-05-31 21:40:32 +00:00
Alexander Markov 372b02d97f [vm/bytecode] Add information about local variables to bytecode
Change-Id: I22bbd3b7ea0cccc0a8d721c3766a80ae1c72060d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/87701
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2019-05-30 21:21:44 +00:00
Teagan Strickland a17b52c2c1 Revert "[vm, compiler] Unoptimized megamorphic calls."
This reverts commit fde6a5917e.

Reason for revert: This commit looks to be causing new test failures on dart2js. While there are some odd results on some builders that look like infra failures, some builders (for example, dart2js-minified-strong-linux-x64-d8) show the new failing tests clearly.

Original change's description:
> [vm, compiler] Unoptimized megamorphic calls.
> 
> When an instance call in unoptimized code creates more than FLAG_max_polymorphic_checks cases, switch the call to use a MegamorphicCache instead of ICData. The prevents unbounded collection of type feedback, and gives improvements on microbenchmarks in the 3-8% range for unoptimized code.
> 
> It also leads to a loss of target frequency information for the optimizer, leading to different ordering for range checks in polymorphic inlining. This leads to changes on megamorphic microbenchmarks from -31% to +60%, weighted toward the negative end.
> 
> In practice the frequency information seems unimportant, as dart2js has 4.01% geomean improvement.
> 
> This is a step toward direct monomorphic calls in unoptimized code, which will also make use of the patching and type feedback extraction added here.
> 
> Bug: https://github.com/dart-lang/sdk/issues/26780
> Bug: https://github.com/dart-lang/sdk/issues/36409
> Bug: https://github.com/dart-lang/sdk/issues/36731
> Change-Id: I29f53f23b6794c5f5f0db8b8184788cee16fd9c5
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/99270
> Reviewed-by: Alexander Markov <alexmarkov@google.com>

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

Change-Id: Icad46b93cdf8541a00563f49da6b4ac0a4df1ba1
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: https://github.com/dart-lang/sdk/issues/26780, https://github.com/dart-lang/sdk/issues/36409, https://github.com/dart-lang/sdk/issues/36731
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/103440
Reviewed-by: Teagan Strickland <sstrickl@google.com>
Commit-Queue: Teagan Strickland <sstrickl@google.com>
2019-05-22 13:20:49 +00:00
Ryan Macnak fde6a5917e [vm, compiler] Unoptimized megamorphic calls.
When an instance call in unoptimized code creates more than FLAG_max_polymorphic_checks cases, switch the call to use a MegamorphicCache instead of ICData. The prevents unbounded collection of type feedback, and gives improvements on microbenchmarks in the 3-8% range for unoptimized code.

It also leads to a loss of target frequency information for the optimizer, leading to different ordering for range checks in polymorphic inlining. This leads to changes on megamorphic microbenchmarks from -31% to +60%, weighted toward the negative end.

In practice the frequency information seems unimportant, as dart2js has 4.01% geomean improvement.

This is a step toward direct monomorphic calls in unoptimized code, which will also make use of the patching and type feedback extraction added here.

Bug: https://github.com/dart-lang/sdk/issues/26780
Bug: https://github.com/dart-lang/sdk/issues/36409
Bug: https://github.com/dart-lang/sdk/issues/36731
Change-Id: I29f53f23b6794c5f5f0db8b8184788cee16fd9c5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/99270
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2019-05-21 19:44:27 +00:00
Matthew Dempsky 6d5f763952 [vm] Eliminate Mutex/Monitor indirection where possible
In many cases, the Mutexes and Monitors have to be marked "mutable"
because they're used to synchronize const accessor methods.

Small text segment improvement for Product builds:

$ size dart.{arm,x64}.{before,after}
   text	   data	    bss	    dec	    hex	filename
19726069	 409960	 392332	20528361	1393ce9	dart.arm.before
19725525	 409960	 392332	20527817	1393ac9	dart.arm.after
22576021	 600376	1782824	24959221	17cd8f5	dart.x64.before
22574821	 600376	1782824	24958021	17cd445	dart.x64.after

Change-Id: I68f5cd5ad452044df8bfebd160910496036a3e6b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/101745
Commit-Queue: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2019-05-13 21:17:51 +00:00
Aart Bik b0727bd661 [dart/vm] enhanced graph checker
Rationale:
Refactored existing verify uses (with some overlap and some
additional checks) into the graph checker. Also added more
verification code and repaired some inconsistencies in IR
found by new checker. However, some checks are disabled with
a TODO, since the IR does not currently meet all the stricter
assumptions. Fixes will follow.

https://github.com/dart-lang/sdk/issues/36893
https://github.com/dart-lang/sdk/issues/36894
https://github.com/dart-lang/sdk/issues/36895
https://github.com/dart-lang/sdk/issues/36899

Change-Id: Ic0395208da38ecb6fc8ca2551efe819e6458a731
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/101922
Commit-Queue: Aart Bik <ajcbik@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2019-05-13 17:47:11 +00:00
Daco Harkes a8b93d9e78 [vm/ffi] DBC support on x64 Linux/MacOS hosts
Issue: https://github.com/dart-lang/sdk/issues/35773

Change-Id: Ib58fb8df6c5c18e604fbf2a156ab69025e5f57d7
Cq-Include-Trybots: luci.dart.try:vm-kernel-linux-debug-simdbc64-try, vm-kernel-linux-release-simdbc64-try, vm-kernel-mac-debug-simdbc64-try, vm-kernel-mac-release-simdbc64-try, vm-kernel-reload-mac-debug-simdbc64-try, vm-kernel-reload-mac-release-simdbc64-try, vm-kernel-linux-debug-ia32-try, vm-dartkb-linux-debug-simarm64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/97221
Reviewed-by: Samir Jindel <sjindel@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
2019-05-09 11:46:03 +00:00
Stevie Strickland 4028fec3b5 Reland "[vm] Finish adding support for ECMAScript 2018 features."
This work pulls in v8 support for these features with
appropriate changes for Dart and closes
https://github.com/dart-lang/sdk/issues/34935.

This adds support for the following features:

* Interpreting patterns as Unicode patterns instead of
  BMP patterns
* the dotAll flag (`/s`) for changing the behavior
  of '.' to also match line terminators
* Escapes for character classes described by Unicode
  property groups (e.g., \p{Greek} to match all Greek
  characters, or \P{Greek} for all non-Greek characters).

The following TC39 proposals describe some of the added features:

* https://github.com/tc39/proposal-regexp-dotall-flag
* https://github.com/tc39/proposal-regexp-unicode-property-escapes

These additional changes are included:

* Extends named capture group names to include the full
  range of identifier characters supported by ECMAScript,
  not just ASCII.
* Changing the RegExp interface to return RegExpMatch
  objects, not Match objects, so that downcasting is
  not necessary to use named capture groups from Dart

**Note**: The changes to the RegExp interface are a
breaking change for implementers of the RegExp interface.
Current users of the RegExp interface (i.e., code using Dart
RegExp objects) will not be affected.

Change-Id: Ie62e6082a0e2fedc1680ef2576ce0c6db80fc19a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/100641
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Stevie Strickland <sstrickl@google.com>
2019-04-29 09:11:48 +00:00
Keerti Parthasarathy 9238e25305 Revert "[vm] Finish adding support for ECMAScript 2018 features."
This reverts commit 5ebb640a67.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> [vm] Finish adding support for ECMAScript 2018 features.
> 
> This work pulls in v8 support for these features with
> appropriate changes for Dart and closes
> https://github.com/dart-lang/sdk/issues/34935.
> 
> This adds support for the following features:
> 
> * Interpreting patterns as Unicode patterns instead of
>   BMP patterns
> * the dotAll flag (`/s`) for changing the behavior
>   of '.' to also match line terminators
> * Escapes for character classes described by Unicode
>   property groups (e.g., \p{Greek} to match all Greek
>   characters, or \P{Greek} for all non-Greek characters).
> 
> The following TC39 proposals describe some of the added features:
> 
> * https://github.com/tc39/proposal-regexp-dotall-flag
> * https://github.com/tc39/proposal-regexp-unicode-property-escapes
> 
> These additional changes are included:
> 
> * Extends named capture group names to include the full
>   range of identifier characters supported by ECMAScript,
>   not just ASCII.
> * Changing the RegExp interface to return RegExpMatch
>   objects, not Match objects, so that downcasting is
>   not necessary to use named capture groups from Dart
> 
> **Note**: The changes to the RegExp interface are a
> breaking change for implementers of the RegExp interface.
> Current users of the RegExp interface (i.e., code using Dart
> RegExp objects) will not be affected.
> 
> Change-Id: I0709ed0a8d5db36680e32bbad585594857b9ace4
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/95651
> Commit-Queue: Stevie Strickland <sstrickl@google.com>
> Reviewed-by: Johnni Winther <johnniwinther@google.com>
> Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>

TBR=lrn@google.com,kustermann@google.com,jmesserly@google.com,johnniwinther@google.com,sstrickl@google.com

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

Change-Id: I1eda0fee4fd9e94df095944049833a67b07277e2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/100560
Reviewed-by: Keerti Parthasarathy <keertip@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Keerti Parthasarathy <keertip@google.com>
2019-04-25 14:29:51 +00:00
Ryan Macnak 3fd6fa4ff7 [vm] Fix errors compiling with GCC.
Change-Id: Ia3127ba9ef4ee1faf1f85a6eaa0dafd0cf187b2b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/99376
Reviewed-by: Aart Bik <ajcbik@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Samir Jindel <sjindel@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-04-24 23:12:45 +00:00
Stevie Strickland 5ebb640a67 [vm] Finish adding support for ECMAScript 2018 features.
This work pulls in v8 support for these features with
appropriate changes for Dart and closes
https://github.com/dart-lang/sdk/issues/34935.

This adds support for the following features:

* Interpreting patterns as Unicode patterns instead of
  BMP patterns
* the dotAll flag (`/s`) for changing the behavior
  of '.' to also match line terminators
* Escapes for character classes described by Unicode
  property groups (e.g., \p{Greek} to match all Greek
  characters, or \P{Greek} for all non-Greek characters).

The following TC39 proposals describe some of the added features:

* https://github.com/tc39/proposal-regexp-dotall-flag
* https://github.com/tc39/proposal-regexp-unicode-property-escapes

These additional changes are included:

* Extends named capture group names to include the full
  range of identifier characters supported by ECMAScript,
  not just ASCII.
* Changing the RegExp interface to return RegExpMatch
  objects, not Match objects, so that downcasting is
  not necessary to use named capture groups from Dart

**Note**: The changes to the RegExp interface are a
breaking change for implementers of the RegExp interface.
Current users of the RegExp interface (i.e., code using Dart
RegExp objects) will not be affected.

Change-Id: I0709ed0a8d5db36680e32bbad585594857b9ace4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/95651
Commit-Queue: Stevie Strickland <sstrickl@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2019-04-24 09:24:16 +00:00
Ryan Macnak 9d376de55a [vm] Remove code collection.
Code collection interacts badly with
 - warming up compiled code
 - retaining pre-compiled code
 - code coverage
 - hot reload (deopting to an old version of a function)

Change-Id: Id269a6c3281e577d4f600f0c158af9e62f6b49ea
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/99722
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-04-18 20:12:09 +00:00
Alexander Aprelev 01c44ffc9a [vm/compiler] Don't restore errors we are ignoring.
In particular branch offset errors on arm result in another round of compilation in "far offset" mode.
We don't want to restore those branch offset errors.

Fixes https://github.com/dart-lang/sdk/issues/36478.

Change-Id: Iaaacc9b2e617bd582fa55e49ff676bf6266cdbe5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/98705
Commit-Queue: Alexander Aprelev <aam@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2019-04-09 21:52:57 +00:00
Samir Jindel a2709992a2 [vm] Support optcounter=1 and randomize it for testing.
Change-Id: I1d371ca9644a65f8fe9864ac708689c1469da17d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/97242
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Samir Jindel <sjindel@google.com>
2019-04-05 10:15:44 +00:00
Martin Kustermann 592aee4838 Revert "Reland "Temporary revert of two changes which potentially caused performance regressions in Flutter.""
The change was already reverted and I accidentally relanded this.

Change-Id: I62ff3367db7aaaf3a470727fdb587830a23fe53c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/98566
Reviewed-by: Martin Kustermann <kustermann@google.com>
2019-04-03 12:50:57 +00:00
Ben Konyi debd918696 Reland "Temporary revert of two changes which potentially caused performance regressions in Flutter."
This is a reland of 49c94d3600

It appears that the major regressions were introduced not by the typed data unification
changes but rather by 3fd124db1f "[vm] Repair the resolver abstraction." which got
reverted in e979895efb "Revert "[vm] Repair the resolver abstraction."


Original change's description:
> Temporary revert of two changes which potentially caused performance regressions in Flutter.
>
> Revert "[vm] Re-number class ids for internal/external typed data and typed data views"
>
> This reverts commit a062221b76.
>
> Revert "[vm] Unify internal/external/view typed data into new RawTypedDataBase class"
>
> This reverts commit 94362f1af0.
>
> Change-Id: I7189c976aa86cdcf0a3802631bff754baf3ca2cc
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/98521
> Reviewed-by: Ben Konyi <bkonyi@google.com>

Change-Id: I758775ccc426a02bce538d07ea04d9c67e8933d2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/98562
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
Auto-Submit: Martin Kustermann <kustermann@google.com>
2019-04-03 12:04:23 +00:00
asiva dc9370a07d [vm/runtime] Create separate background compilation queues for optimized and unoptimized compilations.
- create separate compilation queues for optimized and compilation
queues
- remove option FLAG_background_compilation_stop_alot doesn't seem to be used in any format testing
- remove some class finalization checks before starting the background compiler

Change-Id: I98f1773987e33a43e7b43ace4c383d17bd0a1710
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/98453
Reviewed-by: Zach Anderson <zra@google.com>
2019-04-03 00:58:43 +00:00
Ben Konyi d63d0b4bcd Revert "Temporary revert of two changes which potentially caused performance regressions in Flutter."
This reverts commit 49c94d3600.

Reason for revert: Relanding

Original change's description:
> Temporary revert of two changes which potentially caused performance regressions in Flutter.
> 
> Revert "[vm] Re-number class ids for internal/external typed data and typed data views"
> 
> This reverts commit a062221b76.
> 
> Revert "[vm] Unify internal/external/view typed data into new RawTypedDataBase class"
> 
> This reverts commit 94362f1af0.
> 
> Change-Id: I7189c976aa86cdcf0a3802631bff754baf3ca2cc
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/98521
> Reviewed-by: Ben Konyi <bkonyi@google.com>

TBR=bkonyi@google.com,asiva@google.com

Change-Id: I5c5be67fcec05434283153cb2592ba41afd1f41f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/98505
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
2019-04-02 23:53:42 +00:00
Ben Konyi 49c94d3600 Temporary revert of two changes which potentially caused performance regressions in Flutter.
Revert "[vm] Re-number class ids for internal/external typed data and typed data views"

This reverts commit a062221b76.

Revert "[vm] Unify internal/external/view typed data into new RawTypedDataBase class"

This reverts commit 94362f1af0.

Change-Id: I7189c976aa86cdcf0a3802631bff754baf3ca2cc
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/98521
Reviewed-by: Ben Konyi <bkonyi@google.com>
2019-04-02 23:53:12 +00:00
Siva Annamalai 057497e57b Revert "[vm/runtime] Create separate background compilation queues for optimized and unoptimized compilations."
This reverts commit bcb6df13b9.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> [vm/runtime] Create separate background compilation queues for optimized and unoptimized compilations.
> 
> - create separate compilation queues for optimized and compilation
> queues
> - remove option FLAG_background_compilation_stop_alot doesn't seem to be used in any format testing
> - remove some class finalization checks before starting the background compiler
> 
> Change-Id: I09feb500c2a5cc9c6e93347f63bfca41b83b35cf
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/98301
> Reviewed-by: Zach Anderson <zra@google.com>
> Commit-Queue: Siva Annamalai <asiva@google.com>

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

Change-Id: I3faf74c95dce7741c75f8836cce30f9dba2e154c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/98448
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
2019-04-02 01:17:24 +00:00
asiva bcb6df13b9 [vm/runtime] Create separate background compilation queues for optimized and unoptimized compilations.
- create separate compilation queues for optimized and compilation
queues
- remove option FLAG_background_compilation_stop_alot doesn't seem to be used in any format testing
- remove some class finalization checks before starting the background compiler

Change-Id: I09feb500c2a5cc9c6e93347f63bfca41b83b35cf
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/98301
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
2019-04-02 00:32:33 +00:00
Martin Kustermann 94362f1af0 [vm] Unify internal/external/view typed data into new RawTypedDataBase class
This moves the length field as well as an inner pointer to the start of
the data into the RawTypedDataBase class.  The inner pointer is updated
on allocation, scavenges and old space compactions.

To avoid writing more assembly the typed data view factory constructors
will be generated using IL, which will update the inner pointer. This
required adding new IR instructions and changing the existing
UnboxedIntConverter instruction.

This is the foundation work to de-virtualize calls on the public typed
data types, e.g. Uint8List.


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

Cq-Include-Trybots: luci.dart.try:vm-canary-linux-debug-try, vm-dartkb-linux-debug-x64-try, vm-dartkb-linux-release-x64-try, vm-kernel-asan-linux-release-x64-try, vm-kernel-checked-linux-release-x64-try, vm-kernel-linux-debug-ia32-try, vm-kernel-linux-debug-simdbc64-try, vm-kernel-linux-debug-x64-try, vm-kernel-linux-product-x64-try, vm-kernel-linux-release-ia32-try, vm-kernel-linux-release-simarm-try, vm-kernel-linux-release-simarm64-try, vm-kernel-linux-release-simdbc64-try, vm-kernel-linux-release-x64-try, vm-kernel-optcounter-threshold-linux-release-ia32-try, vm-kernel-optcounter-threshold-linux-release-x64-try, vm-kernel-precomp-android-release-arm-try, vm-kernel-precomp-bare-linux-release-simarm-try, vm-kernel-precomp-bare-linux-release-simarm64-try, vm-kernel-precomp-bare-linux-release-x64-try, vm-kernel-precomp-linux-debug-x64-try, vm-kernel-precomp-linux-product-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-obfuscate-linux-release-x64-try, vm-kernel-precomp-win-release-simarm64-try, vm-kernel-precomp-win-release-x64-try, vm-kernel-reload-linux-debug-x64-try, vm-kernel-reload-linux-release-x64-try, vm-kernel-reload-rollback-linux-debug-x64-try, vm-kernel-reload-rollback-linux-release-x64-try, vm-kernel-win-debug-ia32-try, vm-kernel-win-debug-x64-try, vm-kernel-win-product-x64-try, vm-kernel-win-release-ia32-try, vm-kernel-win-release-x64-try
Change-Id: I1aab0dd93fa0f06a05299ab4cb019cf898b9e1ef
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/97960
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2019-03-30 14:02:50 +00:00
Ryan Macnak cf32584870 [vm] Support compiling static field initializers and dynamic invocation forwarders from a compilation trace.
Clean up creating static field initializers.

Change-Id: I914263f532be1d1a7216d3b5e35d05c4f0fdf167
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/97547
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
2019-03-28 00:48:30 +00:00
Ryan Macnak 2c001aacc0 [vm] Address various quirks observed in Fuchsia profiling samples.
- Don't waste time scrubbing or qualifying function metadata names.
 - Don't waste time scrubbing or lib qualifying function names for timeline events.
 - Give intrinsic functions a grace usage counter.
 - Fix wrong flag guarding stack overflow name-based slow paths.

Change-Id: Ib78e7e4f8de51208266190fff2d1f7eb8d80c329
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/97174
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2019-03-19 17:46:08 +00:00
Stevie Strickland af5fc2d4d2 [VM] Partial support for named regexp captures.
See https://github.com/tc39/proposal-regexp-named-groups
for a high-level description of the feature and examples.  This is one of the
features requested in https://github.com/dart-lang/sdk/issues/34935.

This is a partial implementation because while there is a way to retrieve
groups via Dart by name, it requires casting the returned Match to the
new RegExpMatch interface to avoid changing the RegExp interface.
Changing the RegExp interface will happen in a future update, since there
are other planned changes to the RegExp interface coming soon and that way
we only change it once. See https://github.com/dart-lang/sdk/issues/36171
for more details on the planned changes.

Also, since only BMP regular expressions are supported, not full
Unicode ones (i.e., those with the /u flag in ECMAscript), \k<NAME>
will only be parsed as a named back reference if there are named
captures in the string. Otherwise, the \k will be parsed as the identity
escape for backwards compatibility. The new tests illustrate this
difference.

Change-Id: Ieeb0374813db78924c9aa8ac3e652dfb6d4a5934
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/95461
Commit-Queue: Stevie Strickland <sstrickl@google.com>
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Jenny Messerly <jmesserly@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
2019-03-19 10:40:15 +00:00
Samir Jindel 85f8d3c047 [vm] Build FFI trampolines with IL.
Bugs fixed: dartbug.com/36033, dartbug.com/36034, dartbug.com/36155.

Change-Id: Ic463dd2d299018e03f840ecedc8b7dfa350c6b95
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/94860
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Aart Bik <ajcbik@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2019-03-15 12:38:54 +00:00
Ryan Macnak 580e5731d6 [vm] Test compilation traces, type feedback, reused instructions.
Improve error for failure to reuse instructions.

Change-Id: I38b30a0da508f686d73dffebbf5893d6c939f19a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/95940
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-03-13 23:36:06 +00:00
Zichang Guo 4ec72c1eb1 [VM-Runtime]Fix source report coverage to not include field without function initializer
Fix issue created by 89173. Also rename HasInitializer to HasInitializerFunction to distinguish from has_initializer.

Bug= https://github.com/flutter/flutter/issues/28542

Change-Id: Id9f898937c2f4f350a6d619019dc12611505801f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/95680
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Zichang Guo <zichangguo@google.com>
2019-03-07 02:04:41 +00:00
Ryan Macnak bf7ecc40f9 [vm] Fix some compilation events to respect SUPPORT_TIMELINE instead of PRODUCT.
Cf. d6caaeeebb

Change-Id: I1b1db807113f38a3a3205b33d523c5db0961bd41
Reviewed-on: https://dart-review.googlesource.com/c/94360
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
2019-02-26 00:02:06 +00:00
Martin Kustermann d3fde891bf [VM] Fix deadlock between mutator and BG compiler
Here's how the deadlock can happen:

  * The vm-service background compiler asks all threads to go to a
    safepoint before it finalizes the code. Then it finalizes the
    code and notifies code observers. A code observer posts a
    message to the vm-service. Posting this message requires holding the
    monitor of the receiving isolate's message handler (see
    MessageHandler::PostMessage).

  * The vm-service mutator holds it's message handlers monitor and
    enters the isolate (see MessageHandler::HandleMessages). The
    StartIsolateScope schedules the mutator thread, which will in return
    see that BG compiler wants to safepoint, so it waits for BG compiler
    to finish.

At this point the mutator holds the MessageHandler's monitor and waits
for BG compiler to finish safepoint. The BG compiler tries to post a
message to the message handler (and the monitor is locked).

-> This CL ensures the BG compiler only arranges a safepoint before it
   starts creating the instructions object. It fills it in and exits the
   safepoint again.  Only then do we notify code observers.

Furthermore this CL ensures we transition out of VM to native state
before calling the Dart_PostCMessage() function.

Change-Id: I5320440d54ca303a1ccc7556600a42d37cd6e1de
Reviewed-on: https://dart-review.googlesource.com/c/93421
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
2019-02-19 14:00:04 +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
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
Ryan Macnak 169331abb1 [vm] Misc timeline tweaks.
- Move compiler pass events to a new CompilerVerbose stream
 - Remove serialization phase events
 - Add class name to class finalization event (lost along with finalization events in recent cleanups of finalization)
 - Add event for kernel loading

Change-Id: Ie72bced978400ea174c1551c961baa55c691b019
Reviewed-on: https://dart-review.googlesource.com/c/90883
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2019-01-25 18:37:05 +00:00
Vyacheslav Egorov f496e538f4 [vm] Decouple assemblers 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. The goal of the refactoring to locate all places where compiler
accesses some runtime information and partion those accesses into two
categories:

- creating objects in the host runtime (e.g. allocating strings, numbers, etc)
during compilation;
- accessing properties of the target runtime (e.g. offsets of fields) to
embed those into the generated code;

This change introduces dart::compiler and dart::compiler::target namespaces.

All code in the compiler will gradually be moved into dart::compiler namespace.
One of the motivations for this change is to be able to prevent access to
globally defined host constants like kWordSize by shadowing them in the
dart::compiler namespace.

The nested namespace dart::compiler::target hosts all information about
target runtime that compiler could access, e.g. compiler::target::kWordSize
defines word size of the target which will eventually be made different
from the host kWordSize (defined by dart::kWordSize).

The API for compiler to runtime interaction is placed into compiler_api.h.

Note that we still permit runtime to access compiler internals directly -
this is not going to be decoupled as part of this work.

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

Change-Id: If4396d295879391becfa6c38d4802bbff81f5b20
Reviewed-on: https://dart-review.googlesource.com/c/90242
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2019-01-25 16:45:13 +00:00
asiva fb2d829a0e [VM / Compiler] Change some OS::PrintErr to THR_Print
We still see some trace messages related to the compiler coming from the
service isolate when debugging compilations. Chnaged some of the

OS::PrintErr calls in the trace code under the compiler to THR_Print
so traces from the service isolate can be filtered out.
Change-Id: Ib370cb3bf4a1ce175b4ade9fafa187fecfa91cef
Reviewed-on: https://dart-review.googlesource.com/c/91140
Commit-Queue: Siva Annamalai <asiva@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Aart Bik <ajcbik@google.com>
2019-01-24 23:52:02 +00:00
Ryan Macnak 06a1e6e9e3 [vm] Enable timeline on Fuchsia even in product mode.
On Fuchsia, the timeline is accessed without involving the service isolate or vm-service.

Change-Id: Ia0d4e1ca252604e8fcef466a31e3d2a8b0912251
Reviewed-on: https://dart-review.googlesource.com/c/90100
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-01-18 00:06:10 +00:00
Ryan Macnak 07f95e7761 Revert "[vm] Enable timeline on Fuchsia even in product mode."
This reverts commit 3f7b371f2c.

Reason for revert: Some modes failing to find new constant?

Original change's description:
> [vm] Enable timeline on Fuchsia even in product mode.
> 
> On Fuchsia, the timeline is accessed without involving the service isolate or vm-service.
> 
> Change-Id: I0d2351dcadcfc47835732235e1b8fafa8212f883
> Reviewed-on: https://dart-review.googlesource.com/c/89880
> Reviewed-by: Zach Anderson <zra@google.com>
> Commit-Queue: Ryan Macnak <rmacnak@google.com>

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

Change-Id: Ic03a78d14821e0361d54587f1f7510bc9ebfef1c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/89942
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-01-17 00:39:39 +00:00
Ryan Macnak 3f7b371f2c [vm] Enable timeline on Fuchsia even in product mode.
On Fuchsia, the timeline is accessed without involving the service isolate or vm-service.

Change-Id: I0d2351dcadcfc47835732235e1b8fafa8212f883
Reviewed-on: https://dart-review.googlesource.com/c/89880
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
2019-01-16 22:55:51 +00:00
Stevie Strickland 23f427b1a7 Reland [VM/Compiler] Removing definition status from Store{Indexed,InstanceField}.
Also do the same for the unsafe version of StoreIndexed.

Similar to the inliner, we may replace calls in the specializers with
these non-definition instructions, so we make variants that allow an
unrelated value to be used for the old users of the call site value. (In
all cases, this ends up being null, since the original calls wouldn't
have returned a useable value anyway.)

Change-Id: I0befd54920c4c0e63e086b804860ee4c9a7d3767
Reviewed-on: https://dart-review.googlesource.com/c/89585
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Stevie Strickland <sstrickl@google.com>
2019-01-15 17:23:21 +00:00
Vyacheslav Egorov 02b1658f59 Revert "[VM/Compiler] Revoke definition status of certain instructions."
This reverts commit a8777149a7.

Reason for revert: benchmarking infrastructure reports broken benchmarks on ARM.

Original change's description:
> [VM/Compiler] Revoke definition status of certain instructions.
> 
> Change StoreIndexed, StoreIndexedUnsafe, and StoreInstanceField
> to be non-definition instructions. Fix up the flow graph builders
> so they no longer treat StoreIndexed and StoreIndexedUnsafe as
> pushing values on the stack that need to be dropped.
> 
> We recently changed FlowGraphInliner::TryInlineRecognizedMethod
> to create a distinction between the last instruction to be inlined
> and the definition that should be used as the new result. Perform
> the same separation of replacement code and result in the call
> specializers.
> 
> Change-Id: I66c7ab60a662dcca05092e47156d1d4ba809d51f
> Reviewed-on: https://dart-review.googlesource.com/c/88326
> Commit-Queue: Stevie Strickland <sstrickl@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>

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

Change-Id: I9c666d80a69ba6a5c37b421aae1ed83502694f19
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/89366
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
2019-01-14 18:50:29 +00:00
Stevie Strickland a8777149a7 [VM/Compiler] Revoke definition status of certain instructions.
Change StoreIndexed, StoreIndexedUnsafe, and StoreInstanceField
to be non-definition instructions. Fix up the flow graph builders
so they no longer treat StoreIndexed and StoreIndexedUnsafe as
pushing values on the stack that need to be dropped.

We recently changed FlowGraphInliner::TryInlineRecognizedMethod
to create a distinction between the last instruction to be inlined
and the definition that should be used as the new result. Perform
the same separation of replacement code and result in the call
specializers.

Change-Id: I66c7ab60a662dcca05092e47156d1d4ba809d51f
Reviewed-on: https://dart-review.googlesource.com/c/88326
Commit-Queue: Stevie Strickland <sstrickl@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2019-01-14 15:45:03 +00:00
asiva 2427a69e14 [VM/Runtime] Refactoring sources to enable interpreter only builds.
The interpreter only build of the Dart VM should not be including any
sources from the 'compiler' directory.
First part of restructuring sources to enable an interpreter only build
of the VM
- Move CompileClass from compiler.cc file to class_finalizer.cc

Change-Id: I8743c6537ed2d63e6991d78949f858a1ae506121
Reviewed-on: https://dart-review.googlesource.com/c/87987
Commit-Queue: Siva Annamalai <asiva@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
2019-01-07 18:49:17 +00:00
Régis Crelier cb8c0ab8f5 [vm] Remove MixinAppType VM class and VM code supporting type resolution.
In Dart2, mixin application classes are generated by kernel and type resolution
is performed by kernel. In Dart1, using the VM parser, these tasks were done
during class and type finalization.

Change-Id: I927b1446d906ffd76ed9591c96e0d974df09f3bf
Reviewed-on: https://dart-review.googlesource.com/c/87025
Commit-Queue: Régis Crelier <regis@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
2018-12-13 20:18:36 +00:00
Ryan Macnak 07f43510a2 [vm] Fix some cases of dropped errors and confusion between Exceptions::PropagateError and LongJumpScope::Jump.
Assert against Exceptions::PropagateError skipping over LongJumpScopes and LongJumpScope::Jump skipping over exit frames.

Bug: https://github.com/dart-lang/sdk/issues/35224
Change-Id: I67004a73265882191cb1945cb5a049559b747e89
Reviewed-on: https://dart-review.googlesource.com/c/85411
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2018-12-05 18:57:02 +00:00
Ryan Macnak 679a1a7867 [vm] Clean up sticky error accessors.
Bug: https://github.com/dart-lang/sdk/issues/35224
Change-Id: I867b47a95d7b38e511259b06ef24424d8809096d
Reviewed-on: https://dart-review.googlesource.com/c/85861
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2018-12-05 18:39:41 +00:00