This class is structurally equivalent to _HashVMBase and the only reason
for it to exist for inability of normal Dart classes to extend
_HashVMBase - but this can worked around by properly configuring
_HashVMBase class in bootstrapping.
TEST=ci
Change-Id: I5ca401e274920d2b4739424c6b6595306a6a6964
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/494140
Commit-Queue: Slava Egorov <vegorov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
This is a reland of commit 88496ba1c3
Fixes on top of the original change:
* Closure layout is changed to avoid gap between fixed fields and
variable-length elements on compressed pointers architecture.
This gap was causing crashes in the GC when scanning closure
objects.
* pkg/vm_snapshot_analysis/test/instruction_sizes_test is fixed
on arm64 by decreasing threshold for detecting size changes.
Original change's description:
> [vm,dart2bytecode,modular_aot] Variable-length closure objects
>
> Extend closure objects with variable number of elements to capture.
> This is needed to support capturing multiple independent contexts
> after capturing is computed in the front-end.
>
> The following fixed Closure fields are moved into variable-length
> elements:
> - delayed type arguments;
> - instantiator type arguments;
> - function type arguments;
> - context.
>
> Number of elements and presence/indices of various type arguments
> are encoded into the new length_and_flags field in the Closure.
>
> Most closure objects don't need any of the type arguments so this
> change will reduce average Closure object size.
TEST=ci
Issue: https://github.com/dart-lang/sdk/issues/61572
Issue: https://github.com/dart-lang/sdk/issues/61635
Change-Id: I8685e632e2d0832766ecdc470f3cf9a6b880de48
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/494243
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Tess Strickland <sstrickl@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
Extend closure objects with variable number of elements to capture.
This is needed to support capturing multiple independent contexts
after capturing is computed in the front-end.
The following fixed Closure fields are moved into variable-length
elements:
- delayed type arguments;
- instantiator type arguments;
- function type arguments;
- context.
Number of elements and presence/indices of various type arguments
are encoded into the new length_and_flags field in the Closure.
Most closure objects don't need any of the type arguments so this
change will reduce average Closure object size.
TEST=ci
Issue: https://github.com/dart-lang/sdk/issues/61572
Issue: https://github.com/dart-lang/sdk/issues/61635
Change-Id: I7ca5cec0fd8725c432a01d51781fb14e803997dd
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/489482
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
Reviewed-by: Tess Strickland <sstrickl@google.com>
Also:
* Support arguments descriptors.
* Fix order of ClosureCall inputs in local function invocations.
* Fix order of passing arguments in all Dart calls.
* Fix handling of fields in InstanceSerializationCluster.
* Do not compile abstract methods and fields.
* Do not generate initializer functions for fields with trivial
initializers.
* Initialize Code::code_source_map to an empty CodeSourceMap
(in order to avoid failed assertions).
TEST=tools/test.py -n vm-modaot-mac-debug-arm64 language
Issue: https://github.com/dart-lang/sdk/issues/61635
Change-Id: I40ff1b8234c32c41e08f3288a23e4abc173efcfd
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/480020
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Add support for constant lists, maps, sets, ints, doubles,
symbols, type literals and user-defined instances.
Also add initial support for function types (without
type parameters), extension types, nullable Never.
TEST=tools/test.py -n vm-modaot-mac-debug-arm64 language
Issue: https://github.com/dart-lang/sdk/issues/61635
Change-Id: I9f73925759b44ac33515895c06ef2a3fcb97e04b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/479066
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Moving these constants from global namespace to Page class prevents
possible conflicts with other kPageSize/kPageMask/kBlockSize constants
and allows us to export value of Page::kPageMask constant into runtime
offsets via runtime/vm/compiler/runtime_offsets_list.h.
TEST=ci
Change-Id: I4357f4644f0f5f7beba50184231fef55dd86b124
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/476147
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Closures going into shared variables in particular have to be confirmed to capture appropriate values.
BUG=https://github.com/dart-lang/sdk/issues/62179
TEST=run_isolate_group_run_test
Cq-Include-Trybots: luci.dart.try:vm-dyn-linux-debug-x64-try,vm-dyn-mac-debug-arm64-try,vm-aot-dyn-linux-debug-x64-try
Change-Id: I27416773fd77077018739ea4dbcc6e4695e67be8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/469103
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Alexander Aprelev <aam@google.com>
Thread::OffsetFromThread from runtime_api.cc assumed that all fields
between leaf and non-leaf runtime entries in Thread have word size,
so the delta between runtime entries can be translated from host to
target by multiplying by the ratio between target and host word size.
Since leaf and non-leaf runtime entries are not co-located in Thread,
this assumption is incorrect. It is now fixed by using separate
bases when calculating offsets of leaf and non-leaf runtime entries.
Also, add FatalError runtime entry which is useful for
bootstrapping of the new compiler.
TEST=ci
Issue: https://github.com/dart-lang/sdk/issues/61635
Change-Id: Iea4762b21285aa6423876b34328c863227ee1434
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/467900
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
Alexander Markov