This adds serialization of the new local variables, VariableStatement and VariableDeclaration. This prepares for replacing LegacyVariable with the new variables in all backends.
TEST=existing
Change-Id: I9bbebfbfd372042d6b7027f0fabd24c165699832
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/506240
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
In the VM, factory constructors always had an extra "type arguments"
parameter, even if class is not generic. Factory constructor bodies
were using class type parameters instead of function type parameters.
This results in extra code when calling non-generic factories
which is slightly inefficient in terms of code size and performance.
Also, it creates an additional complexity throughout the system as
factories should be special cased in many places.
This change removes artificial "type arguments" parameter, treating
factory constructors basically as static methods. This matches
kernel AST representation.
TEST=ci
Change-Id: I957583cb2ce9a3c408699880a04036e06b01dd31
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/501762
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Call sites targeting a procedure annotated with `external-effect` will
not produce any code, including the argument which will not be
evaluated.
However, the single parameter will be treated as 'live' for the purposes
of any global analysis the backends do. This is useful for things like
protobuf shaking where a user may want to retain certain protobuf
messages without actually emitting the code that retains those messages.
Today this functionality is available internally in the vm and wasm SDK
libraries. dart2js has similar functionality represented via the
opaqueTrue and opaqueFalse booleans (which will cause conditional
branches to get shaken after analysis). This will replace dart2js's
opaque(True/False).
This also adds validation to the frontend to ensure a method annotated
with 'external-effect' is well-formed.
Change-Id: If1c4096673e655c58fe7638840a16125003e7809
Tested: Backend tests for codegen were added. A frontend test was added for the validation. A language test was added to confirm the behavior.
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/476020
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Nate Biggs <natebiggs@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>
When instantiating a closure, allocate a new closure object in
the same boostrap native method as checking bounds.
This simplifies code generation and prepares for variable-length
closure objects by removing the only place where closure of unknown
length was allocated in the generated code.
TEST=ci
Change-Id: I9ac51c862081612bca2160699ebe24526d4fc915
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/490360
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
This adds isRedirectingInitializer and isSuperInitializer to the Initializer hierarchy and adds flags to InvalidInitializer to signal when the InvalidInitializer should be taking as a redirecting or super initializer. This allows us to avoid miscatergorizing such declarations when they are erroneous.
Part of #61700
TEST=existing
Change-Id: If0fabbda10b72304999a5380fce74f9e8fa91ca4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/486180
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Erik Ernst <eernst@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
The unique IDs are assigned during VM-specific lowering transformation
and recomputed during TFA tree shaking.
The IDs are not assigned when local function AST nodes are created
as it makes certain AST transformations very fragile (e.g. moving
a sub-tree to another parent, cloning a tree to insert into another
member).
The IDs will be used to identify local functions within a member by
the VM and different compilers (dart2bytecode, modular AOT).
TEST=ci
Change-Id: Ifa5dc007322a0137776961d364bbf8565137b318
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/483840
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
This CL adds the field `thisExpression` to the Kernel AST nodes
representing invocations of methods, getters, and setters. The field
is initially populated with `ThisExpression` nodes, and eventually it
will be set to a `VariableGet` of a `ThisVariable` in the new variable
model.
Part of https://github.com/dart-lang/sdk/issues/61572
TEST=existing
Change-Id: I9d8e96cfe5c392f93d041d8947883fc86189c142
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/474320
Commit-Queue: Chloe Stefantsova <cstefantsova@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
This updates the Initializer classes such that InvalidInitializer has a message and will throw at runtime, similar to InvalidExpression. All initializers have positions and only FieldInitializer and SuperInitializer have an isSynthetic field.
TEST=pkg/front_end/testcases/general/invalid_initializer.dart
Change-Id: Ic444bb1dc273b433ac70249240527d115deaa332
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/463661
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
StreamingFlowGraphBuilder::BuildTryFinally talks about 5 different
cases where a finally block needs to be executed:
1) break/continue in a loop
2) continue in a switch
3) return statement
4) try body is an open fragment
5) exception is thrown inside try
StreamingFlowGraphBuilder::BuildTryFinally itself only handles cases
4 and 5. So when we added branch coverage to the finally inside
BuildTryFinally, we missed cases 1, 2, and 3, which go through
TranslateFinallyFinalizers instead.
Bug: https://github.com/dart-lang/tools/issues/2241
Change-Id: I02b38a18452be709d5fabd9945d6570a2f1b5120
Fixes: https://github.com/dart-lang/tools/issues/2241
TEST=SourceReport_BranchCoverage_finallyEdgeCases
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/463220
Commit-Queue: Liam Appelbe <liama@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
This adds an internal wrapper expression for redirecting factory invocations. This holds a reference to the original redirecting factory constructor along with the resulting invocation of the generative or factory constructor. The node is removed during constant evaluation and only available to backends through the pre-modular transformations.
TEST=existing
Change-Id: I35c19766117ab2942aefddb4ccebcd2df66babf3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/454820
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Chloe Stefantsova <cstefantsova@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Since Dart 2, assert statements only accept bool conditions,
so evaluation of the assert condition can be simplified in the VM.
TEST=existing
Change-Id: I0f54ad66b9d9aef707fef4eac192128a3994e7c9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/425920
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Certain kinds of functions do not have corresponding kernel binary,
so Function::KernelLibraryIndex() returns -1 for them.
However, flow graph builder and scopes builder established reading of
kernel binary for those functions, which was based on a typed data
view created for a library -1 (treating some unrelated field from
kernel component index as library offset).
This change fixes this out-of-bounds access and avoids reading
any kernel for these functions.
TEST=ci
Fixes https://github.com/dart-lang/sdk/issues/60369
Change-Id: I91717ec6ad905b71bab49d7b3b3f636bda19afb4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/417102
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
According to the spec, a call in the form
e(a0,...,aN)
where static type of 'e' is 'dynamic' should succeed only if
(1) 'e' evaluates to a function, or
(2) runtime type of 'e' has a 'call' *method*.
If runtime type of 'e' has a 'call' getter this invocation should
fail with NSM.
This behavior is different from 'e.call(a0,...,aN)' which accepts
'call' getters.
---
In order to implement this behavior in the VM, a special
'dyn:implicit:call' selector is added. It behaves similarly to
'dyn:call' except when looking for a getter target.
This selector is used when CFE sets FlagImplicitCall on a
DynamicInvocation node.
TEST=co19/Language/Expressions/Function_Invocation/Function_Expression_Invocation/call_A04_t01
TEST=co19/Language/Expressions/Function_Invocation/Function_Expression_Invocation/call_A04_t02
Fixes https://github.com/dart-lang/sdk/issues/59965
Issue https://github.com/dart-lang/sdk/issues/59952
Issue https://github.com/dart-lang/sdk/issues/51517
Issue https://github.com/dart-lang/language/issues/3482
Change-Id: Ic45f7743ad75571476642dcec9c91e6a77e8e321
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/407161
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
StreamingFlowGraphBuilder::BuildMethodInvocation handles both
DynamicInvocation and InstanceInvocation nodes.
BuildMethodInvocation has been reading flags field and testing
kInstanceInvocationFlagInvariant bit without checking if node is
InstanceInvocation, so it has been handling an unrelated
DynamicInvocation flag (FlagImplicitCall) as FlagInvariant.
TEST=ci
Change-Id: I1e2ecbb0023bfdb393fc24c29cc8263e05198277
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/407081
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Change core library '_throwNew' helpers to return Never.
Since https://dart-review.googlesource.com/c/sdk/+/405604 flow graph
builder automatically appends Stop and closes fragment after appending
a call with return type Never. So additional 'throw' after calling
'_throwNew' are no longer needed and can be removed.
Also, cleanup unused FlowGraphBuilder::ThrowTypeError() and
replace 'throw' with shorter Stop at the end of 'case'.
TEST=ci
Change-Id: I0a5109fd693c0463c53e70e5dd261f8080bf1132
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/406080
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Previously catch blocks were hanging off the function entry blocks being effectively an alternative entry-point into the function. Now catch blocks are hanging off the try-entry blocks.
Previously all the variables that are used in the catch block and beyond were declared as parameters to catch block. Now only those that have their definitions not dominating catch entry will become parameters (for example, if a variable is assigned in the try-block, it becomes a parameter to catch block).
During OSR, if OSR target entry point is inside some try-blocks, then all of corresponding try-entry/catch-blocks are pulled up to the OSR entry forming a chain that ends with a jump to the OSR target entry.
TEST=vm/dart/trycatch*, ci
Change-Id: Iae20c6548d5d65c63be6d7a53c1b0d2adac7ac31
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/356311
Commit-Queue: Alexander Aprelev <aam@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Previously, ComparisonInstr base class represented arbitrary conditions
used in Branch, IfThenElse and CheckCondition instructions and included
subclasses TestInt, TestCids, TestRange and unary DoubleTestOp which are
not comparisons. So this refactoring renames ComparisonInstr to
ConditionInstr.
In addition, a new Comparison instruction is added as a base class for
StrictCompare, EqualityCompare and RelationalOp.
TEST=ci (pure refactoring)
Change-Id: Ic8756ee5913ff2bc974c95cea8004370c9f5527f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/393420
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Make these pragmas apply to the function body even when
function is inlined into a caller.
* CheckStackOverflow is dropped directly in the flow graph builder;
* CheckBound is dropped when appending it if the caller is
marked with corresponding pragma.
These pragmas no longer have non-local effect and apply only
to the function which is marked with the pragma.
TEST=vm/cc/{CheckStackOverflowElimination_NoInterruptsPragma,BoundsCheckElimination_Pragma}
Change-Id: I9f4f9a5934d563049fe8e15e33c0432f0883ae3f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/384540
Commit-Queue: Slava Egorov <vegorov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
With sound null safety front-end guarantees that all logical
expressions have a non-nullable bool type, so legacy AssertBoolean
checks are no longer needed and can be removed.
TEST=ci
Change-Id: If952da7bd0ac83c43de3e5d98845c5e5d8d29f6a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/382744
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
This CL fixes two bugs related to scoping:
1. Empty variable name lookup in outer functions failing.
2. Let expressions not pushing and popping contexts.
Additionally, this CL introduces a `--print-scoping` debug flag to
ease debugging scoping issues in the future.
Variable lookup is now only using kernel offset, unless the offset
is `kNoKernelOffset`. In that case, the names are used.
All synthetic variables in the VM now use `kNoKernelOffset` as their
offset.
The let expressions not pushing contexts is fixed by pushing context.
The context is only pushed if the scope captures variables. So this
should not lead to performance regressions. (Any lacking pushing of
scopes should have lead to crashes.)
TEST=tests/ffi/regress_56412_2_test.dart
TEST=tests/ffi/regress_56412_test.dart
Closes: https://github.com/dart-lang/sdk/issues/56412
Change-Id: I85fc4a161b833df80ce8f2911d618aa2ac9797eb
Cq-Include-Trybots: dart/try:vm-aot-android-release-arm64c-try,vm-aot-android-release-arm_x64-try,vm-aot-asan-linux-release-x64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-debug-x64c-try,vm-aot-mac-release-arm64-try,vm-aot-mac-release-x64-try,vm-aot-msan-linux-release-x64-try,vm-aot-obfuscate-linux-release-x64-try,vm-aot-optimization-level-linux-release-x64-try,vm-aot-tsan-linux-release-x64-try,vm-aot-ubsan-linux-release-x64-try,vm-aot-win-debug-arm64-try,vm-aot-win-debug-x64-try,vm-aot-win-debug-x64c-try,vm-appjit-linux-debug-x64-try,vm-asan-linux-release-arm64-try,vm-asan-linux-release-x64-try,vm-checked-mac-release-arm64-try,vm-eager-optimization-linux-release-ia32-try,vm-eager-optimization-linux-release-x64-try,vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64c-try,vm-ffi-qemu-linux-release-arm-try,vm-ffi-qemu-linux-release-riscv64-try,vm-fuchsia-release-arm64-try,vm-fuchsia-release-x64-try,vm-linux-debug-ia32-try,vm-linux-debug-x64-try,vm-linux-debug-x64c-try,vm-mac-debug-arm64-try,vm-mac-debug-x64-try,vm-msan-linux-release-arm64-try,vm-msan-linux-release-x64-try,vm-reload-linux-debug-x64-try,vm-reload-rollback-linux-debug-x64-try,vm-tsan-linux-release-arm64-try,vm-tsan-linux-release-x64-try,vm-ubsan-linux-release-arm64-try,vm-ubsan-linux-release-x64-try,vm-win-debug-arm64-try,vm-win-debug-x64-try,vm-win-debug-x64c-try,vm-win-release-ia32-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/380983
Reviewed-by: Slava Egorov <vegorov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
No client of the VM uses this flag, only tests, and this flag was always
set to false in AOT mode. Thus, remove uses of this flag and instead
always lazily create dispatchers as needed when resolving method names
in JIT mode.
Remove the implicit value of `allow_add` for some Resolver
static methods. For callers that previously depended on the implicit
`true` value (which includes the AOT precompilier), pass `true` for
uses in the compiler and pass `!FLAG_precompiled_mode` for uses in the
runtime. Assert that `allow_add` is false when these methods are invoked
from the precompiled runtime.
Remove Resolver static methods that are no longer used.
TEST=ci
Change-Id: Ib6a7354f7a859e86743c381513a4129c14895753
Cq-Include-Trybots: luci.dart.try:vm-linux-debug-x64-try,vm-linux-release-x64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-release-x64-try,vm-aot-mac-release-arm64-try,vm-mac-debug-arm64-try,vm-mac-release-arm64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/366668
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
When uploading CLs, the presubmit checks verify that the lines in the
diff are formatted correctly according to `git cl format runtime`.
However, when `buildtools/<os>-<arch>/clang/bin/clang-format` is
updated, it does not force reformatting of files that would be
reformatted.
This leads to two issues:
* Inconsistent style within the code base and within a single file.
* Spurious reformatting in CLs when (1) clang-format is used on the
whole file, or (2) the diff lines overlap.
`clang-format` doesn't change that frequently, so in general this is
not a large issue, but I've seen a bit too many "spurious formatting,
please revert" comments on CLs recently.
This CL formats the runtime to be in line with the current pinned
`clang-format`:
```
$ find runtime/ -iname *.h -o -iname *.cc | xargs buildtools/mac-arm64/clang/bin/clang-format -i
```
`git cl format` (which only formats changed lines, and does so with
`clang-format`) seems to not agree with itself, or clang-format, or
cpplint in a handful of places. This CL adds `// clang-format off`
for these. (See previous patchsets for the specific instances.)
TEST=A variety of bots including GCC, MacOS and Windows.
Change-Id: I470892e898971899fda14bb3b8f2c8efefd67686
Cq-Include-Trybots: luci.dart.try:vm-gcc-linux-try,vm-ffi-qemu-linux-release-riscv64-try,vm-ffi-qemu-linux-release-arm-try,vm-aot-win-debug-x64-try,vm-win-debug-x64c-try,vm-mac-debug-x64-try,vm-mac-debug-arm64-try,vm-aot-linux-debug-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/362780
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Vm flag --null-assertions only makes sense without sound null safety.
Now that VM no longer supports unsound mode, the flag is obsolete and
can be removed.
TEST=ci
Change-Id: I69eb2012ac483f082fd43ecc9743076e0e1928c8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/362181
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
This CL changes compounds (structs, unions, and arrays) to be backed
by a TypedDataBase and an int offset.
Before this CL, the compounds where only backed by a TypedDataBase.
This leads to the following issues:
1. Access to nested structs required code for allocating new typed data
views or pointers, which the optimizer then had to prevent from
being allocated after inlining.
2. Runtime branching on whether the TypedDataBase was a Pointer or
TypedData increased code size and prevented inlining.
https://github.com/dart-lang/sdk/issues/54892
This could not be properly optimized if in AOT both typed
data and pointer were flowing into the same compound.
3. Constructing TypedData views required calculating the length of the
view.
After this CL, accessing nested compounds will lead to accesses on the
original TypedDataBase with an extra offset.
This removes the polymorphism on TypedData vs Pointer, because the
final int/float/Pointer accesses in nested compounds operate on
TypedDataBase.
Also, it simplifies creating an `offsetBy` accessor, because it will
no longer have to be polymorphic in typed data vs pointer, nor will it
have to calculate the length of the field.
Implementation details:
* The changes in the CFE and patch files are straightforward.
* VM: Struct-by-value returns (or callback params) are initialized
with an offsetInBytes of 0.
* VM: Struct-by-value arguments (and callback return) need to read out
the offsetInBytes. Before this CL we were passing in the TypedData
as tagged value. With this CL we are passing the TypedData as tagged
value and the offset as unboxed int, from 1 IL input to 2 IL
inputs. (The alternative would have been to take the compound as
a tagged value, but that would have prevented optimizations from not
allocating the compound object in the optimizer.
The FfiCallInstr is updated to have two definitions for the case
where we were passing in the TypedData previously.
The NativeReturnInstr is refactored to be able to take two inputs
instead of 1. (Note that we don't have VariadicInstr only
VariadicDefinition in the code base. So the instruction is _not_
implemented as variadic, rather as having a fixed length of 2.)
* dart2wasm does no longer support nested compounds due to the
compound implementation only storing a pointer address.
https://github.com/dart-lang/sdk/issues/55083
Intending to land this after
https://dart-review.googlesource.com/c/sdk/+/353101.
TEST=test/ffi
CoreLibraryReviewExempt: VM and WASM-only implementation change.
Closes: https://github.com/dart-lang/sdk/issues/54892
Bug: https://github.com/dart-lang/sdk/issues/44589
Change-Id: I8749e21094bf8fa2d5ff1e48b6b002c375232eb5
Cq-Include-Trybots: dart-internal/g3.dart-internal.try:g3-cbuild-try
Cq-Include-Trybots: dart/try:vm-aot-android-release-arm64c-try,vm-aot-android-release-arm_x64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-debug-x64c-try,vm-aot-mac-release-arm64-try,vm-aot-mac-release-x64-try,vm-aot-obfuscate-linux-release-x64-try,vm-aot-optimization-level-linux-release-x64-try,vm-aot-win-debug-arm64-try,vm-aot-win-debug-x64-try,vm-aot-win-debug-x64c-try,vm-appjit-linux-debug-x64-try,vm-asan-linux-release-x64-try,vm-checked-mac-release-arm64-try,vm-eager-optimization-linux-release-ia32-try,vm-eager-optimization-linux-release-x64-try,vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64c-try,vm-ffi-qemu-linux-release-arm-try,vm-ffi-qemu-linux-release-riscv64-try,vm-fuchsia-release-x64-try,vm-linux-debug-ia32-try,vm-linux-debug-x64-try,vm-linux-debug-x64c-try,vm-mac-debug-arm64-try,vm-mac-debug-x64-try,vm-msan-linux-release-x64-try,vm-reload-linux-debug-x64-try,vm-reload-rollback-linux-debug-x64-try,vm-ubsan-linux-release-x64-try,vm-win-debug-arm64-try,vm-win-debug-x64-try,vm-win-debug-x64c-try,vm-win-release-ia32-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/354226
Reviewed-by: Tess Strickland <sstrickl@google.com>
Previously, the FFI used unboxed integers as a native representation
for pointers in FFI code, as the compiler only handled very specific
uses of untagged pointers flowing between instructions. Since then,
this restriction has been removed for untagged pointers that do not
point to memory managed by the GC, like FFI pointers, so now they can
have a more precise representation.
By being precise about when untagged (untagged pointers to freshly
allocated Handles and the contents of Pointer data fields) and tagged
(TypedData objects constructed to hold the byte representation of
compound data) values are expected, we can remove the need to have
untagged pointers to GC-movable objects and/or having untagged
pointers escape as unboxed integers in the generated IL.
This CL also renames kUnboxedFfiIntPtr -> kUnboxedAddress and limits
its uses specifically to where the unboxed integer represents the
numeric representation of an untagged pointer.
This CL changes CCall to take Representations for the arguments and
return value instead of what looks like an arbitrary
NativeCallingConvention. However, the serializer and deserializers for
CCall, used in IL tests, originally assumed that the argument and return
representations were kUnboxedFfiIntPtr, so providing an arbitrary
NativeCallingConvention which didn't match that assumption would cause
failures during IL tests. That assumption came from the fact that
the only creator of CCall instructions was in kernel_to_il.cc, and there
that was the case.
Now CCall builds the native calling convention during construction
and deserialization from the argument and return representations and
stores both the representations and built native calling convention
internally. In the future, if we want to create CCall instructions with
more arbitrary native calling conventions, then we'll need to handle
serialization/deserialization of arbitrary native calling conventions,
and also add consistency checks that the provided representations
appropriately match the native calling convention.
TEST=ffi vm/dart/regress_306327173_il vm/dart/address_local_pointer_il
Issue: https://github.com/dart-lang/sdk/issues/54710
Cq-Include-Trybots: luci.dart.try:vm-aot-android-release-arm64c-try,vm-aot-android-release-arm_x64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-debug-x64c-try,vm-aot-mac-release-arm64-try,vm-aot-mac-release-x64-try,vm-aot-obfuscate-linux-release-x64-try,vm-aot-optimization-level-linux-release-x64-try,vm-aot-win-debug-arm64-try,vm-appjit-linux-debug-x64-try,vm-asan-linux-release-x64-try,vm-checked-mac-release-arm64-try,vm-eager-optimization-linux-release-ia32-try,vm-eager-optimization-linux-release-x64-try,vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64c-try,vm-ffi-qemu-linux-release-arm-try,vm-ffi-qemu-linux-release-riscv64-try,vm-fuchsia-release-x64-try,vm-linux-debug-ia32-try,vm-linux-debug-x64-try,vm-linux-debug-x64c-try,vm-mac-debug-arm64-try,vm-mac-debug-x64-try,vm-msan-linux-release-x64-try,vm-reload-linux-debug-x64-try,vm-reload-rollback-linux-debug-x64-try,vm-ubsan-linux-release-x64-try,vm-win-debug-arm64-try,vm-win-debug-x64-try,vm-win-release-ia32-try
Change-Id: I34effe8fbdc80288b703e0152d5ba67ce2343400
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/353101
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
Make FlowGraph constructor compute whether we are planning to reorder
blocks before code generation or not. This makes the state of the
graph at the end of the compilation more clear.
This is just a refactoring without any functional changes.
TEST=ci
Change-Id: Ieefb02237cc1ebd69d5d2b217bdc8ebbfdbf15c7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/358446
Commit-Queue: Slava Egorov <vegorov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
TFA now produces direct call metadata for function calls based on the
results of the analysis.
VM reads direct call metadata for function calls, but only uses it
if target is a tear-off, as it cannot handle inlining of an arbitrary
closure function yet (due to scope building dependencies between
compilation of a closure and its parent function).
TEST=pkg/vm/testcases/transformations/type_flow/transformer/closures.dart
Issue: https://github.com/dart-lang/sdk/issues/39692
Change-Id: Idf0b6988534bfca1a64c6661a82df8d453272abf
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/357180
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Previously, method extractors (getter functions which return
tear-offs) where implemented in the following way:
Method extractor body is an asm intrinsic which loads a few registers
and jumps to BuildMethodExtractor stubs.
BuildMethodExtractor stub loads more registers, calls AllocateClosure
stub and initializes a few fields of a closure (this stub also used
to call AllocateContext but it is no longer needed for tear-offs).
AllocateClosure allocates a closure object and initializes closure
fields.
Instead of doing 2 hops to the object allocation, method extractor
body now calls AllocateClosure stubs directly which initializes
all closure fields. This saves a jump and a handful of instructions
to load certain things on registers and set closure fields.
Assembler intrinsic for method extractor body and
architecture-specific BuildMethodExtractor stubs are now removed.
Also, as method extractors are really tiny, they are now always
inlined.
TEST=ci
Change-Id: Icfeed18414659a76c7d24d3f6f53a76c91e5bbd3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/356302
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
This adds a `forErrorHandling` to the `Throw` node. This is used that the `throw` is *not* present in the source code but added to ensure
correctness and/or soundness of the generated code.
This is used for instance in the lowering for handling duplicate writes
to a late final field or for pattern assignments that don't match.
In response to https://github.com/dart-lang/sdk/issues/53519
TEST=updated ast-to-text
Change-Id: Ie103829d98fda9cd7b64e9e3d893e77d1e86d7d8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/347900
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
Reviewed-by: Liam Appelbe <liama@google.com>
Previously, when taking a tear-off, a separate Context object was
allocated in order to capture receiver. Now, receiver is stored directly
in the Closure object in the 'context' field. This saves 1 object
allocation per tear-off and makes tear-offs cheaper compared to
explicit closures which can share context with other closures.
Benchmarks in AOT mode:
x64:
TearOff.NotInlined +40%
TearOff.NotInlined.InTry +43%
TearOff.Inlined.InTry +47%
arm64:
TearOff.NotInlined +27-43%
TearOff.NotInlined.InTry +29-43%
TearOff.Inlined.InTry +58-94%
arm64c:
TearOff.NotInlined +71%
TearOff.NotInlined.InTry +72%
TearOff.Inlined.InTry +96%
TEST=ci
Issue: https://github.com/dart-lang/sdk/issues/54808
Change-Id: I3ad95e8a8a4fc23f856bbc0fe238da58a9d25b8d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/350945
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
FFI loads and stores via structs can have a TypedData as receiver,
so this CL updates those loads to `kMayBeInnerPointer`.
This CL adds an IL test to verify that for `Pointer` loads the untagged
value is treated correctly as `kCannotBeInnerPointer`.
(And adds some prefer-inline pragmas to make some common operations
be inlined to avoid allocating `Pointer` objects.)
This CL updates the load in the FFI closures to use a load-field.
This can also potentially enable not allocating a pointer object when
this closure is inlined.
TEST=tests/ffi/unwrap_typeddata_generated_test.dart
TEST=tests/ffi
CoreLibraryReviewExempt: Only adding some pragmas.
Change-Id: If687e54c676f275cc849b3fed526a13766ab331a
Cq-Include-Trybots: luci.dart.try:vm-aot-android-release-arm64c-try,vm-aot-android-release-arm_x64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-debug-x64c-try,vm-aot-mac-release-arm64-try,vm-aot-mac-release-x64-try,vm-aot-obfuscate-linux-release-x64-try,vm-aot-optimization-level-linux-release-x64-try,vm-aot-win-debug-arm64-try,vm-aot-win-debug-x64-try,vm-appjit-linux-debug-x64-try,vm-asan-linux-release-x64-try,vm-checked-mac-release-arm64-try,vm-eager-optimization-linux-release-ia32-try,vm-eager-optimization-linux-release-x64-try,vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64c-try,vm-ffi-qemu-linux-release-arm-try,vm-ffi-qemu-linux-release-riscv64-try,vm-fuchsia-release-x64-try,vm-kernel-linux-debug-x64-try,vm-kernel-precomp-linux-release-x64-try,vm-linux-debug-ia32-try,vm-linux-debug-x64-try,vm-linux-debug-x64c-try,vm-mac-debug-arm64-try,vm-mac-debug-x64-try,vm-msan-linux-release-x64-try,vm-reload-linux-debug-x64-try,vm-reload-rollback-linux-debug-x64-try,vm-ubsan-linux-release-x64-try,vm-win-debug-arm64-try,vm-win-debug-x64-try,vm-win-release-ia32-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/349241
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Johnni Winther