Commit Graph

36 Commits

Author SHA1 Message Date
Tess Strickland cb9ecbc363 [vm] Enforce that entry points must be annotated by default.
Changes the default value of the --verify-entry-points flag
to true.

Changes the default value for the check_is_entrypoint argument to
to the Invoke/InvokeGetter/InvokeSetter flags to true. The mirrors
library implementation and calls via vm-service explicitly pass
false for this argument now.

Add annotations as needed, such as annotating classes with
annotated generative constructors. In some cases, the annotations
were more general than needed (e.g., annotating with a no-argument
entry point annotation when only the setter is needed), so make
those annotations more specific.

As this pattern is already common in downstream code, allow
Dart_Invoke on fields as long as the field is annotated for getter
access. (That is, calling Dart_Invoke for a field is equivalent to
retrieving the closure value via Dart_GetField and then calling
Dart_InvokeClosure.)

TEST=vm/cc/DartAPI_MissingEntryPoints
     vm/dart/entrypoints_verification_test

Issue: https://github.com/dart-lang/sdk/issues/50649
Issue: https://github.com/flutter/flutter/issues/118608

Change-Id: Ibb3bf15632ab2958d8791b449af8651d47f871a5
Cq-Include-Trybots: luci.dart.try:vm-aot-linux-product-x64-try,vm-aot-linux-debug-x64-try,vm-aot-mac-release-arm64-try,vm-aot-mac-product-arm64-try,vm-aot-dwarf-linux-product-x64-try
CoreLibraryReviewExempt: adding/editing vm-only pragma annotations
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/363566
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
2024-10-22 09:34:22 +00:00
Alexander Markov 6ca015ab20 [vm] Cleanup obsolete pragma vm:non-nullable-result-type
Since sound null safety, 'vm:non-nullable-result-type' pragma is
no longer useful as the same information is conveyed by a non-nullable
return type.

TEST=ci

Change-Id: Ie6a61aca38cfea47cb005b12ca7f0d7631791024
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/372200
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
2024-06-20 20:24:44 +00:00
Alexander Markov dcdfcc2b8d Reland "[vm/ffi] Express FFI call closures explicitly in AST"
This reverts commit 1800039c2a.

The changes fd2e9b9f1a and
c20f9eaf6f are relanded as is.

Reason for revert was fixed separately in
https://dart-review.googlesource.com/c/sdk/+/341621

TEST=ci

CoreLibraryReviewExempt: Implementation change only.
Issue: https://github.com/dart-lang/sdk/issues/54172
Issue: https://github.com/dart-lang/sdk/issues/39692
Change-Id: I1a2324768502e5ffbce328127938c0d3c96c38ba
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/341642
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
2023-12-15 15:25:29 +00:00
Alexander Markov 1800039c2a Revert "[vm/ffi] Express FFI call closures explicitly in AST"
This reverts commit fd2e9b9f1a.

Revert "[vm/ffi] Cleanup FFI call trampolines"

This reverts commit c20f9eaf6f.

Reason: https://github.com/flutter/flutter/issues/140074
TEST=ci
CoreLibraryReviewExempt: Implementation change only.
Change-Id: Ib193d8f015fc66461fe3cc90550a92e1ba65f236
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/341620
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Auto-Submit: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
2023-12-14 01:14:58 +00:00
Alexander Markov fd2e9b9f1a [vm/ffi] Express FFI call closures explicitly in AST
Instead of implicitly creating closures for FFI
asFunction/lookupFunction APIs in the VM, now they are explicitly expressed in the kernel AST. That makes it possible to analyze
them in TFA.

FFI calls from Dart code into native are now performed in the following way:

```
  block {
    Pointer #ffiTarget0 = target;
    @pragma('vm:ffi:call-closure', _FfiCall<Int32 Function(Int32)>(isLeaf: false))
    #ffiClosure0(int arg1) {
      _nativeEffect(arg1);
      return _ffiCall<int>(#ffiTarget0);
    }
  } =>#ffiClosure0;
```

_ffiCall method is recognized by the VM and its call is replaced
directly with FFI calling sequence. _ffiCall uses closure
parameters implicitly. No extra trampolines are generated for FFI calls.

TEST=existing
Fixes https://github.com/dart-lang/sdk/issues/54172
Issue https://github.com/dart-lang/sdk/issues/39692

CoreLibraryReviewExempt: Implementation change only.
Change-Id: I92b3ff7391470686151ad0807e2cdbbf1a69d256
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/339662
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
2023-12-12 18:34:39 +00:00
Daco Harkes 47357d8535 Reland "[vm/ffi] Optimize @Native calls"
Original change in patchset 1.

The reland contains a fix for handles. The objects passed in handles
must live on the stack (or in the heap) so that that memory location
can be used as a handle.

This CL introduces a new allocation policy `RequiresRegister` which
forces constants to be spilled to the stack during register
allocation.
Note: Parameters to FfiCall instructions are currently not used in a
way that can make the parameters assigned to registers. So only
constants are treated currently. If we have a way to reproduce params
being assigned to registers, then we can force spilling for
non-consts as well in the register allocator.

Original change's description:
> [vm/ffi] Optimize `@Native` calls
>
> This CL removes static fields for storing the `@Native`'s function
> addresses. Instead, the function addresses are stored in the object
> pool for all archs except for ia32. ia32 has no AOT and no AppJit
> snapshots, so the addresses are directly embedded in the code.
>
> This CL removes the closure wrapping for `@Native`s. Instead of
> `pointer.asFunctionInternal()()` where `asFunction` returns a closure
> which contains the trampoline, the function is compiled to a body
> which contains the trampoline `Native()`. This is possible for
> `@Native`s because the dylib and symbol names are known statically.
>
> Doing the compilation in kernel_to_il instead of a CFE transform
> enables supporting static linking later. (The alternative would have
> been to transform in the cfe to a `@pragma('vm:cachable-idempotent')`
> instead of constructing the IL in kernel_to_il.
>
> To enable running resolution in ia32 in kernel_to_il.cc, the
> resolution function has been made available via
> `runtime/lib/ffi_dynamic_library.h`.
>
> Because the new calls are simply static calls, the TFA can figure
> out const arguments flowing to these calls. This leads to constant
> locations in the parameters to FfiCalls. So, this CL also introduces
> logic to move constants into `NativeLocation`s.

TEST=tests/ffi/vmspecific_ffi_native_handles_test.dart
TEST=tests/ffi/function_*_native_(leaf_)test.dart
TEST=pkg/vm/testcases/transformations/ffi/ffinative_compound_return.dart

Closes: https://github.com/dart-lang/sdk/issues/47625
CoreLibraryReviewExempt: Internal FFI implementation changes
Change-Id: Ia1401b335524dcbf50c663a8770d9a02802923df
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-x64c-try,vm-aot-win-release-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-debug-x64c-try,vm-win-release-ia32-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/333841
Reviewed-by: Slava Egorov <vegorov@google.com>
2023-11-22 16:13:42 +00:00
Martin Kustermann 96921245f9 Revert "[vm/ffi] Optimize @Native calls"
This reverts commit e16bb210d2.

Reason for revert: Indication this caused engine test
failures of the kind:
```
[ RUN      ] EmbedderA11yTest.A11yTreeIsConsistentUsingV1Callbacks
../../flutter/shell/platform/embedder/tests/embedder_a11y_unittests.cc:639: Failure
Expected equality of these values:
  std::strncmp(kTooltip, node->tooltip, sizeof(kTooltip) - 1)
    Which is: 116
  0
```

Original change's description:
> [vm/ffi] Optimize `@Native` calls
>
> This CL removes static fields for storing the `@Native`'s function
> addresses. Instead, the function addresses are stored in the object
> pool for all archs except for ia32. ia32 has no AOT and no AppJit
> snapshots, so the addresses are directly embedded in the code.
>
> This CL removes the closure wrapping for `@Native`s. Instead of
> `pointer.asFunctionInternal()()` where `asFunction` returns a closure
> which contains the trampoline, the function is compiled to a body
> which contains the trampoline `Native()`. This is possible for
> `@Native`s because the dylib and symbol names are known statically.
>
> Doing the compilation in kernel_to_il instead of a CFE transform
> enables supporting static linking later. (The alternative would have
> been to transform in the cfe to a `@pragma('vm:cachable-idempotent')`
> instead of constructing the IL in kernel_to_il.
>
> To enable running resolution in ia32 in kernel_to_il.cc, the
> resolution function has been made available via
> `runtime/lib/ffi_dynamic_library.h`.
>
> Because the new calls are simply static calls, the TFA can figure
> out const arguments flowing to these calls. This leads to constant
> locations in the parameters to FfiCalls. So, this CL also introduces
> logic to move constants into `NativeLocation`s.
>
> TEST=runtime/vm/compiler/backend/il_test.cc
> TEST=tests/ffi/function_*_native_(leaf_)test.dart
> TEST=pkg/vm/testcases/transformations/ffi/ffinative_compound_return.dart
>
> Closes: https://github.com/dart-lang/sdk/issues/47625
> Closes: https://github.com/dart-lang/sdk/issues/51618
> Change-Id: Ic5d017005dedcedea40c455c4d24dbe774f91603
> CoreLibraryReviewExempt: Internal FFI implementation changes
> 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-win-debug-arm64-try,vm-aot-win-debug-x64c-try,vm-aot-win-release-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-debug-x64c-try,vm-win-release-ia32-try
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/284300
> Commit-Queue: Daco Harkes <dacoharkes@google.com>
> Reviewed-by: Alexander Markov <alexmarkov@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>

Change-Id: Icc87a6ca33bffecabb15c6b168a06ccc38c2fe5b
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-win-debug-arm64-try,vm-aot-win-debug-x64c-try,vm-aot-win-release-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-debug-x64c-try,vm-win-release-ia32-try
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/333840
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
2023-11-03 09:04:24 +00:00
Daco Harkes e16bb210d2 [vm/ffi] Optimize @Native calls
This CL removes static fields for storing the `@Native`'s function
addresses. Instead, the function addresses are stored in the object
pool for all archs except for ia32. ia32 has no AOT and no AppJit
snapshots, so the addresses are directly embedded in the code.

This CL removes the closure wrapping for `@Native`s. Instead of
`pointer.asFunctionInternal()()` where `asFunction` returns a closure
which contains the trampoline, the function is compiled to a body
which contains the trampoline `Native()`. This is possible for
`@Native`s because the dylib and symbol names are known statically.

Doing the compilation in kernel_to_il instead of a CFE transform
enables supporting static linking later. (The alternative would have
been to transform in the cfe to a `@pragma('vm:cachable-idempotent')`
instead of constructing the IL in kernel_to_il.

To enable running resolution in ia32 in kernel_to_il.cc, the
resolution function has been made available via
`runtime/lib/ffi_dynamic_library.h`.

Because the new calls are simply static calls, the TFA can figure
out const arguments flowing to these calls. This leads to constant
locations in the parameters to FfiCalls. So, this CL also introduces
logic to move constants into `NativeLocation`s.

TEST=runtime/vm/compiler/backend/il_test.cc
TEST=tests/ffi/function_*_native_(leaf_)test.dart
TEST=pkg/vm/testcases/transformations/ffi/ffinative_compound_return.dart

Closes: https://github.com/dart-lang/sdk/issues/47625
Closes: https://github.com/dart-lang/sdk/issues/51618
Change-Id: Ic5d017005dedcedea40c455c4d24dbe774f91603
CoreLibraryReviewExempt: Internal FFI implementation changes
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-win-debug-arm64-try,vm-aot-win-debug-x64c-try,vm-aot-win-release-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-debug-x64c-try,vm-win-release-ia32-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/284300
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2023-11-02 16:00:53 +00:00
Alexander Markov e27923a5a0 [dart2js] Static weak references to method tearoffs
TEST=language/static_weak_reference_test
TEST=language/static_weak_reference_error_test

Bug: b/269223463

Cq-Include-Trybots: luci.dart.try:vm-kernel-precomp-nnbd-linux-release-x64-try
Change-Id: I760476a7c81751f6c302f21251b525cb5c916c02
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/284489
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Stephen Adams <sra@google.com>
2023-03-02 20:04:19 +00:00
Alexander Markov 143e4e9dc8 [vm/aot/tfa] Static weak references to method tearoffs
TEST=pkg/vm/testcases/transformations/type_flow/transformer/weak.dart
TEST=language/vm/static_weak_reference_test
TEST=language/vm/static_weak_reference_error_test

Bug: b/269223463
Change-Id: I23c8229c39217aa1c3f9fb576d8eefa5ceb1d8ad
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/283421
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
2023-02-22 01:01:29 +00:00
Josh Soref f7a2ea5e06 Spelling
Closes https://github.com/dart-lang/sdk/pull/50922

GitOrigin-RevId: 58fd7cfd5ef470a65a52ea28e0407244d853c917
Change-Id: I2e5a5ed991cb05270170a18b8f0169daa9eabdb7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/278537
Reviewed-by: Alexander Thomas <athom@google.com>
Commit-Queue: Alexander Thomas <athom@google.com>
2023-01-24 18:00:25 +00:00
Josh Soref 84e3c8b50f Spelling tests
Closes https://github.com/dart-lang/sdk/pull/50920

GitOrigin-RevId: fa87531bd0f52b69485c9d02ff9e44a4a29c6a91
Change-Id: I0ae8574a5b77087895e004079f221201bb550cf3
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/278535
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>
Commit-Queue: Alexander Thomas <athom@google.com>
2023-01-19 16:24:29 +00:00
Daco Harkes 9a8508ebff [vm/ffi] FfiNative assets
Adds support for `asset: 'asset-id'` in `FfiNative`s.
Symbols in assets are resolved by
1. the provided [asset] (the bulk of this CL),
2. the native resolver set with `Dart_SetFfiNativeResolver` in
   `dart_api.h` (old behavior), and
3. the current process.

Symbols in assets are resolved by the Dart VM through the mapping
provided in the `vm:ffi:native_assets` library:
```
@pragma('vm:ffi:native-assets', {
  "linux_x64": {
    "<asset1>": [
      "absolute",
      "<absolute-path>"
    ],
    "<asset2>": [
      "relative",
      "<relative-path>"
    ],
    "<asset3>": [
      "system",
      "<system-path>"
    ],
    "<asset4>": [
      "process",
    ],
    "<asset5>": [
      "executable",
    ],
  }
})
library;
```

There are 5 asset path types. Symbols resolved in these asset types are
resolved as follows.
A. Absolute paths are dlopened, after which the symbol is looked up.
B. Relative paths are resolved relative to `Platform.script.uri`, and
   dlopened, after which the symbol is looked up.
C. System paths are treated as absolute paths. (But we might explicitly
   try to use `PATH` in the future.)
D. Symbols looked up in Process assets are looked up in the current
   process.
E. Symbols looked up in Executable assets are looked up in the current
   executable.

The native assets mapping can be provided in three ways.

X. In the invocation to `gen_kernel` with the `--native-assets`
   argument. This uses the gen_kernel entry point for compiling
   kernel.
Y. By placing a `native_assets.yaml` next to the
   `package_config.json` used by the isolate group. This works for
   `dart <source file>` and `Isolate.spawnUri(<dart source file>)`.
   This uses the kernel_service entry point for compiling kernel.
Z. By sending a String containing the native assets mapping when
   invoking the kernel_service directly from within the VM. Currently,
   only used for unit tests.

TEST=tests/ffi/native_assets/asset_*_test.dart (X)
TEST=tests/ffi/native_assets/infer_native_assets_yaml_*.dart (Y)
TEST=runtime/vm/ffi/native_assets_test.cc (Z)

The library is synthesized from yaml in pkg:vm as AST.

Design doc: go/dart-native-assets

Bug: https://github.com/dart-lang/sdk/issues/49803
Change-Id: I8bf7000bfcc03b362948efd3baf168838948e6b9
Cq-Include-Trybots: luci.dart.try:vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64c-try,vm-precomp-ffi-qemu-linux-release-arm-try,vm-kernel-nnbd-mac-debug-arm64-try,vm-kernel-nnbd-mac-debug-x64-try,vm-kernel-win-debug-x64-try,vm-kernel-win-debug-ia32-try,vm-kernel-precomp-win-debug-x64c-try,vm-kernel-reload-linux-debug-x64-try,vm-kernel-reload-rollback-linux-debug-x64-try,vm-kernel-precomp-nnbd-linux-debug-x64-try,vm-kernel-precomp-win-debug-x64c-try,vm-kernel-precomp-nnbd-mac-release-arm64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/264842
Reviewed-by: Martin Kustermann <kustermann@google.com>
2023-01-18 21:08:38 +00:00
Alexander Aprelev 0914835773 [vm/inliner] Tweak inlining heuristic, improve List.of inlining.
Builds on top of https://dart-review.googlesource.com/c/sdk/+/228660, introduces vm:vm:always-consider-inlining that tell inliner not to give up inlining of a function.

HashMap constructor got prefer-inline pragma to accommodate shift in inlining away from where it used to be inlined due to large size of inlined HashMap, greater than FLAG_inline_getters_setters_smaller_than heuristic.

Notable performance changes:

JIT (x64)
===
ListCopy.List.of.fixed.100 27.37%
ListCopy.List.of.fixed.2 16.31%

AOT (x64)
===
Empty  -9.978%
InstantiateTypeArgs.Instantiate1  -8.262%
...
ListCopy.List.of.fixed.2 13.73%
ListCopy.spread.num.2 15.51%
ListCopy.List.of.2 15.08%
MapCopy.Map.String.of.Map.100 55.62%
MapCopy.Map.Thing.of.Map.100 56.06%

flutter release
===
flutter_gallery_apk_size (Pixel 2)
-0.0074% (1.0 noise)41809568.00 41812676.00


Addresses https://github.com/dart-lang/sdk/issues/49408

TEST=Inliner_always_consider_inlining, Inliner_List_of_inlined
Change-Id: I7f8fc7cb0ac4a69310c108cf519518c384dc0164
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/253740
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Alexander Aprelev <aam@google.com>
2022-08-15 21:14:36 +00:00
Dan Field fe30c3f235 [vm] Expose whether extension stream has listeners, guard postEvent
This avoids json encoding that was otherwise happening even in product mode. JSON encoding shows up CPU profiling as taking significant time, particularly on low end devices.

TEST=runtime/observatory/tests/service/developer_extension_test.dart

Bug: https://github.com/dart-lang/sdk/issues/48860
Change-Id: I2cf4d949e85c0b23de01ec2033b04527d40c76fe
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/242081
Reviewed-by: Ben Konyi <bkonyi@google.com>
Reviewed-by: Lasse Nielsen <lrn@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Commit-Queue: Dan Field <dnfield@google.com>
2022-04-26 07:53:43 +00:00
Aske Simon Christensen 1ab705f60c [vm] Require all recognized methods to be marked with pragma.
Adds a @pragma("vm:recognized", <kind>) to all recognized methods, where
<kind> is one of "intrinsic", "graph" or "other", corresponding to the
kind of recognized method.

When running in debug mode, it is checked that all recognized methods
are marked with the correct kind of pragma, and that all methods marked
with the pragma are in fact recognized.

This enables kernel-level analyses and optimizations to query whether
a method is recognized by the VM.

TEST=Asserts that check the correspondence both ways, covered by test
suite, in particular the various CompileAll tests that compile all code.
Change-Id: I12f3305c72a93ecb1aefae2d66e3d9a7dae23b44
Cq-Do-Not-Cancel-Tryjobs: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/168951
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2020-11-16 13:49:50 +00:00
Martin Kustermann 7310377823 [vm/compiler] Tests, cleanups and fixes to Type Testing Stubs.
So far we relied on our normal Dart tests to exercise and test TTS.

This CL adds concrete TTS unit tests, which directly construct the
values the TTS accepts via the calling convention (instance,
dst_type, instantiator tav, function tav), and allows us to test

  * whether TTS handled the type test
  * whether TTS was falling back to STC which handled the type test
  * whether TTS (and STC) preserve the necessary registers

This CL also gets rid of TMP usage in TTS related code.

This CL also adds documentation about TTS to
runtime/docs/compiler/type_testing_stubs.md.

This CL also fixes two issues:

  * handle all-dynamic null vector `as Foo<..., T, ...>`
  * compare the actual type parameter value in `as Foo<..., T, ...>`
    (instead of using type_class_id>)

There seem to be no major performance changes, some benchmarks change
positive/negative but many of them seem to be bi-modal.

Issue https://github.com/dart-lang/sdk/issues/40964
Issue https://github.com/dart-lang/sdk/issues/40736

Change-Id: Iad41e405fe693c67be6221a18e3dad03cc0a5f24
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/139461
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Régis Crelier <regis@google.com>
2020-03-17 14:11:02 +00:00
Samir Jindel 445ae73b32 [vm/tfa] Use pragma to pass type arguments to exact return types.
Change-Id: Ie2a1de07653c53e8b9506c54a0a66a5fe6503b9a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/129160
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2020-01-03 14:08:19 +00:00
Samir Jindel c885bdde1d [vm] DBC is obsolete. Remove dead code.
Change-Id: Ica33af158cca53c8e951e4b2582de83660e8a60d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/121851
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
2019-10-27 18:18:29 +00:00
Teagan Strickland f822dfa3ea Reland "[vm/compiler] Implement new inlining pragmas."
This change introduces two new pragmas:

* `@pragma('vm:never-inline')`
* `@pragma('vm:prefer-inline')`

These replaces the old way of specifying AlwaysInline or NeverInline
annotations when the (now removed) --enable-inlining-annotations flag
was used.

Bug: https://github.com/dart-lang/sdk/issues/36571
Change-Id: Iee152c1d67abde8d58c58fa967449d36e77c8c93
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/110440
Commit-Queue: Teagan Strickland <sstrickl@google.com>
Reviewed-by: Samir Jindel <sjindel@google.com>
2019-07-30 12:01:06 +00:00
Siva Annamalai 27001fb289 Revert "[vm/compiler] Implement new inlining pragmas."
This reverts commit 629f38cf87.

Reason for revert: This CL seems to depend on constant_update_2018 flag being turned on by default. The CL that turns on constant_update_2018 has been reverted, so this CL is also being reverted.

Original change's description:
> [vm/compiler] Implement new inlining pragmas.
> 
> This change introduces two new pragmas:
> 
> * `@pragma('vm:never-inline')`
> * `@pragma('vm:prefer-inline')`
> 
> These replaces the old way of specifying AlwaysInline or NeverInline
> annotations when the (now removed) --enable-inlining-annotations flag
> was used.
> 
> Bug: https://github.com/dart-lang/sdk/issues/36571
> Change-Id: I2495c72819d94e43cefc837d4eb454b7b3d4140c
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/99148
> Commit-Queue: Teagan Strickland <sstrickl@google.com>
> Reviewed-by: Samir Jindel <sjindel@google.com>

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

Change-Id: Idc8e8344adb026a308af20c8b0d0224edb891d9c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: https://github.com/dart-lang/sdk/issues/36571
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/109320
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
2019-07-16 22:33:00 +00:00
Teagan Strickland 629f38cf87 [vm/compiler] Implement new inlining pragmas.
This change introduces two new pragmas:

* `@pragma('vm:never-inline')`
* `@pragma('vm:prefer-inline')`

These replaces the old way of specifying AlwaysInline or NeverInline
annotations when the (now removed) --enable-inlining-annotations flag
was used.

Bug: https://github.com/dart-lang/sdk/issues/36571
Change-Id: I2495c72819d94e43cefc837d4eb454b7b3d4140c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/99148
Commit-Queue: Teagan Strickland <sstrickl@google.com>
Reviewed-by: Samir Jindel <sjindel@google.com>
2019-07-16 09:41:12 +00:00
Samir Jindel ae7bf9e999 [vm] Support closurization of methods through @pragma entry-points.
Fixes dartbug.com/35720.

Also enable native extensions in AOT.
Increases Flutter Gallery snapshot size by 0.19%.

Change-Id: I1b24c3b9a49a13fd48452e9a89595516a7f01780
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/92283
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2019-02-14 17:47:28 +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 267e91a0ea Re-land "[vm] Prevent access to non-annotated members through native API."
Two fixes:

  - Make entrypoints_verification_test work on configurations where CFE compilation
    is separate from execution.
  - Add missing entry-point annotation for Windows.

The original revision is in patchset 1.

Change-Id: I6c4b52b1bae7bc730546dad6a3e31d8625f850b1
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/90942
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2019-01-29 15:10:34 +00:00
Régis Crelier 27316cc97b Revert "[vm] Prevent access to non-annotated members through native API."
This reverts commit 0203243381.

Reason for revert: breaking several bots

Original change's description:
> [vm] Prevent access to non-annotated members through native API.
> 
> We will issue warnings and throw an API error when the native API is used to access members which were not appropriately
> annotated as entry-points, if the flag "--verify-entry-points" is passed.
> 
> Also, fixes Class::Invoke against fields (isn't allowed through native API but
> could be allowed with mirrors, and is inconsistent with Library::Invoke behavior).
> 
> I've checked locally that this would have caught the bug in
> "Wrap the user entrypoint function in a zone with native exception callback. (#7512)".
> 
> Change-Id: I617c71e1965457c956c97761359765bb9bb18c1c
> 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/90060
> Commit-Queue: Samir Jindel <sjindel@google.com>
> Reviewed-by: Alexander Markov <alexmarkov@google.com>

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

Change-Id: I554b389780e4ba652183c044b040b0c524beb5c2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
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/90841
Reviewed-by: Régis Crelier <regis@google.com>
Commit-Queue: Régis Crelier <regis@google.com>
2019-01-23 20:37:22 +00:00
Samir Jindel 0203243381 [vm] Prevent access to non-annotated members through native API.
We will issue warnings and throw an API error when the native API is used to access members which were not appropriately
annotated as entry-points, if the flag "--verify-entry-points" is passed.

Also, fixes Class::Invoke against fields (isn't allowed through native API but
could be allowed with mirrors, and is inconsistent with Library::Invoke behavior).

I've checked locally that this would have caught the bug in
"Wrap the user entrypoint function in a zone with native exception callback. (#7512)".

Change-Id: I617c71e1965457c956c97761359765bb9bb18c1c
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/90060
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2019-01-23 19:04:26 +00:00
Aart Bik aae0f7997d [vm/compiler] Express control dependence as data dependence.
Rationale:
This provides a more robust way of expressing control
dependences between bounds checks and their uses, while
still allowing for CSE and LICM where possible.
This also fixes the original bug that started this
whole redesign: invalid LICM of checkbound.

Note:
Deals with bounds check, null check still TBD.

Reland of:
https://dart-review.googlesource.com/c/sdk/+/85470

Mini design doc:
runtime/docs/compiler/data_dep_for_control_dep.md

https://github.com/dart-lang/sdk/issues/35139
https://github.com/dart-lang/sdk/issues/34684
https://github.com/dart-lang/sdk/issues/30633

Change-Id: I24b994344ed28c9f5fbf0ed033698be75448df1c
Reviewed-on: https://dart-review.googlesource.com/c/85720
Commit-Queue: Aart Bik <ajcbik@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2018-12-03 18:07:39 +00:00
Aart Bik ef419f68f9 Revert "[vm/compiler] Express control dependence as data dependence."
This reverts commit 41f3d4326e.

Reason for revert: I hit +2 by accident when I wanted to submit do a dry run

Original change's description:
> [vm/compiler] Express control dependence as data dependence.
> 
> Rationale:
> This provides a more robust way of expressing control
> dependences between bounds checks and their uses, while
> still allowing for CSE and LICM where possible.
> This also fixes the original bug that started this
> whole redesign: invalid LICM of checkbound.
> 
> Note:
> Deals with bounds check, null check still TBD.
> 
> Mini design doc:
> runtime/docs/compiler/data_dep_for_control_dep.md
> 
> https://github.com/dart-lang/sdk/issues/35139
> https://github.com/dart-lang/sdk/issues/34684
> https://github.com/dart-lang/sdk/issues/30633
> 
> Change-Id: Icfbd3ca60662e37046e48b95be7f81d05d94af88
> Reviewed-on: https://dart-review.googlesource.com/c/85470
> Commit-Queue: Aart Bik <ajcbik@google.com>
> Reviewed-by: Alexander Markov <alexmarkov@google.com>
> Reviewed-by: Vyacheslav Egorov <vegorov@google.com>

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

Change-Id: Id20699f957681c248851b37d545b330fd4972d7a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/85522
Reviewed-by: Aart Bik <ajcbik@google.com>
Commit-Queue: Aart Bik <ajcbik@google.com>
2018-11-29 03:02:17 +00:00
Aart Bik 41f3d4326e [vm/compiler] Express control dependence as data dependence.
Rationale:
This provides a more robust way of expressing control
dependences between bounds checks and their uses, while
still allowing for CSE and LICM where possible.
This also fixes the original bug that started this
whole redesign: invalid LICM of checkbound.

Note:
Deals with bounds check, null check still TBD.

Mini design doc:
runtime/docs/compiler/data_dep_for_control_dep.md

https://github.com/dart-lang/sdk/issues/35139
https://github.com/dart-lang/sdk/issues/34684
https://github.com/dart-lang/sdk/issues/30633

Change-Id: Icfbd3ca60662e37046e48b95be7f81d05d94af88
Reviewed-on: https://dart-review.googlesource.com/c/85470
Commit-Queue: Aart Bik <ajcbik@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2018-11-29 01:47:18 +00:00
Martin Kustermann 0ef66e0f5c [VM] Add @pragma("vm:non-nullable-result-type") annotation
A field/function annotated with this pragma must be guaranteed to not
return `null` at runtime.

Make use of this non-nullable annotation in the VM's type propagator.

Annotates the "_TypedListView._typedData" field to ensure the VM knows it
returns a non-nullable _TypedListView.

Furthermore annotates methods on the integer implementation.  Those particular
methods are recognized methods with a "dynamic" return type.  This caused
the type propagator to use CompileType::Dynamic() as result type.  Since a
previous CL started to only utilize the annotated type if it is better than
"dynamic" more integer operations got handled in-line, though with null-checks.
Annotating those methods to return non-null improves the in-line handling of
integer operations.

This improves dart-aot

On arm7hf:
  SHA256: +5%, SHA: +6%, JsonObjectRoundTrip: +7%, ...

On arm8:
  SHA1: +28%, MD5: +25%, SHA256: +15%, TypedData.Int16ListViewBench: +18.5%, StringInterpolation: +18%, ...


Issue https://github.com/dart-lang/sdk/issues/31954
Issue https://github.com/dart-lang/sdk/issues/35154

Change-Id: Ia4263a37241a36c9dc35e8a48893297effa6f4b2
Reviewed-on: https://dart-review.googlesource.com/c/84421
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2018-11-22 16:18:27 +00:00
Martin Kustermann 94c325a889 Reland "[VM] Make @pragma annotations work generally"
Currently the @pramga('vm:exact-result-type') annotation only works if
the function is a recognized method.  This change changes that to make
the VM just look if a function has the annotation (no matter if it's
also in the list of recognized methods or not).

Furthermore this CL lets the type propgagator use
@pragma('vm:exact-result-type') annotations to narrow the [CompileType]
set on [LoadFieldInstr]s.

Since the @pragma is a general feature, this CL moves the
`Function::FindPragma()` to `Library::FindPragma` (which is where any
other metadata lookup happens).  We also let the `FindPragma` accept any
of Class/Function/Field objects.

Furthermore the `FindPragma()` function is fixed to handle the case
when the evaluation of the metadata results in an error.
In this case we simply claim to not have found a pragma annotation.

Issue https://github.com/dart-lang/sdk/issues/31954

Change-Id: If03f566e334cd53549985823ee3dd6b5e9672969
Reviewed-on: https://dart-review.googlesource.com/c/85163
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2018-11-22 10:54:44 +00:00
Martin Kustermann 845310302d Revert "[VM] Add @pragma annotations on Field, make @pragma annotations work generally"
This reverts commit 2de63ac01c.

Reason for revert: This triggers shutdown deadlocks for some reason:

#0  0xf7782cd9 __kernel_vsyscall
#1  0xf7753d0b pthread_cond_wait@@GLIBC_2.3.2
#2  0x0108a515 dart::Monitor::WaitMicros(long long)
#3  0x0108a467 dart::Monitor::Wait(long long)
#4  0x00fe9048 dart::KernelIsolate::Shutdown()
#5  0x00f99ae4 dart::Dart::Cleanup()
#6  0x01278fce Dart_Cleanup
#7  0x00dd347e dart::bin::main(int, char**)
#8  0x00dd3d64 main
#9  0xf745caf3 __libc_start_main
#10 0x00dd2021 _start
TID 30443:
#0  0xf7782cd9 __kernel_vsyscall
#1  0xf7531ee6 epoll_wait
#2  0x00ddab61 dart::bin::EventHandlerImplementation::Poll(unsigned int)
#3  0x00dfb2d4 dart::bin::ThreadStart(void*)
#4  0xf774ff72 start_thread
#5  0xf753143e __clone
TID 30444:
#0  0xf7782cd9 __kernel_vsyscall
#1  0xf7753d0b pthread_cond_wait@@GLIBC_2.3.2
#2  0x0108a515 dart::Monitor::WaitMicros(long long)
#3  0x0108a467 dart::Monitor::Wait(long long)
#4  0x012484d8 dart::BackgroundCompiler::Run()
#5  0x01248a37 dart::BackgroundCompilerTask::Run()
#6  0x0112203a dart::ThreadPool::Worker::Loop()
#7  0x01121efe dart::ThreadPool::Worker::Main(unsigned int)
#8  0x01089e73 dart::ThreadStart(void*)
#9  0xf774ff72 start_thread
#10 0xf753143e __clone

Original change's description:
> [VM] Add @pragma annotations on Field, make @pragma annotations work generally
> 
> Currently the @pramga('vm:exact-result-type') annotation only works if
> the function is a recognized method.  This change changes that to make
> the VM just look if a function has the annotation (no matter if it's
> also in the list of recognized methods or not).
> 
> Furthermore this CL adds a "has_pragma" bit to [Field] objects, similar
> to how we have it on [Function]/[Class]es.  This allows annotating
> fields with types, as we do with function return types.
> 
> Furthermore this CL lets the type propgagator use
> @pragma('vm:exact-result-type') annotations to narrow the [CompileType]
> set on [LoadFieldInstr]s.
> 
> Since the @pragma is a general feature, this CL moves the
> `Function::FindPragma()` to `Library::FindPragma` (which is where any
> other metadata lookup happens).  We also let the `FindPragma` accept any
> of Class/Function/Field objects.
> 
> Furthermore this CL adds a bailout if we try to evaluate metadata in
> the background compiler, since the background compiler is not allowed
> to execute generated code. The bailout should trigger a re-compilation
> on the mutator thread.
> 
> Furthermore the `FindPragma()` function is fixed to handle the case
> when the evaluation of the metadata results in e.g. a language error.
> In this case we simply claim to not have found a pragma annotation.
> 
> Issue https://github.com/dart-lang/sdk/issues/31954
> 
> Change-Id: I0900a80d5ae0f3e8d09baf13cba1b20dd974df31
> Reviewed-on: https://dart-review.googlesource.com/c/84037
> Commit-Queue: Martin Kustermann <kustermann@google.com>
> Reviewed-by: Alexander Markov <alexmarkov@google.com>
> Reviewed-by: Vyacheslav Egorov <vegorov@google.com>

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

Change-Id: Ic0d22d32b0eea3a76ec245cabab0006f97ca1b05
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/84622
Reviewed-by: Martin Kustermann <kustermann@google.com>
2018-11-16 14:50:32 +00:00
Martin Kustermann 2de63ac01c [VM] Add @pragma annotations on Field, make @pragma annotations work generally
Currently the @pramga('vm:exact-result-type') annotation only works if
the function is a recognized method.  This change changes that to make
the VM just look if a function has the annotation (no matter if it's
also in the list of recognized methods or not).

Furthermore this CL adds a "has_pragma" bit to [Field] objects, similar
to how we have it on [Function]/[Class]es.  This allows annotating
fields with types, as we do with function return types.

Furthermore this CL lets the type propgagator use
@pragma('vm:exact-result-type') annotations to narrow the [CompileType]
set on [LoadFieldInstr]s.

Since the @pragma is a general feature, this CL moves the
`Function::FindPragma()` to `Library::FindPragma` (which is where any
other metadata lookup happens).  We also let the `FindPragma` accept any
of Class/Function/Field objects.

Furthermore this CL adds a bailout if we try to evaluate metadata in
the background compiler, since the background compiler is not allowed
to execute generated code. The bailout should trigger a re-compilation
on the mutator thread.

Furthermore the `FindPragma()` function is fixed to handle the case
when the evaluation of the metadata results in e.g. a language error.
In this case we simply claim to not have found a pragma annotation.

Issue https://github.com/dart-lang/sdk/issues/31954

Change-Id: I0900a80d5ae0f3e8d09baf13cba1b20dd974df31
Reviewed-on: https://dart-review.googlesource.com/c/84037
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
2018-11-16 11:18:22 +00:00
Vyacheslav Egorov a1a38da58e [vm] Report an error when illegally accessing class through API in AOT mode.
Move all pragma documentation into runtime/docs and reformat it a bit.

Fixes https://github.com/dart-lang/sdk/issues/35170

Change-Id: I2ab4d6d598f115efaa3192135cb838fb85cbbb01
Reviewed-on: https://dart-review.googlesource.com/c/84435
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
Auto-Submit: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Samir Jindel <sjindel@google.com>
2018-11-15 12:00:57 +00:00
Vyacheslav Egorov 229d793602 [vm/compiler] Support materializing unboxed variables when entering catch.
Previously we tried to rely on the assumption that all variables would be
boxed - so the machinery for setting correct catch-entry state only
supported tagged values and constants. However this both leads to worse code
and is not entirely correct assumption.

This also:

- renames various confusingly named classes: we move away from talking
about "catch entry state" to "catch entry moves" - because we only
record a subset of moves that needs to be performed and that does
not describe the whole state;
- refactors a bunch of associated code to be more readable and maintainable;
- adds documentation about catch implementation in optimized code
to runtime/docs/compiler;

Fixes https://github.com/flutter/flutter/issues/21685.

Change-Id: I03ae361a1bb7710acbd9f661ae014e663a163c59
Reviewed-on: https://dart-review.googlesource.com/74860
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
2018-09-14 17:39:12 +00:00