db762108fb
`Pointer`s were not handled in deferred materialization of objects
on deoptimizations. This lead to the address field being written as a
tagged value, causing the actual address to be smitagged.
Subsequent uses of those addresses would lead to segfaults.
This CL handles the `Pointer`s manually to deal with the untagged
address.
`--trace-deoptimization-verbose` before this CL:
```
Deoptimizing [...]
_typedDataBase@8050071 <- Pointer: address=0x7ffff7488081
null Field @ offset(8) <- 140736616678128
null Field @ offset(16) <- TypeArguments: (H39d2e3b4) [Type: Never]
```
after this CL:
```
Deoptimizing [...]
_typedDataBase@8050071 <- Pointer: address=0x7fa2c0a88081
pointer@data <- 0x7fa29c16c0e0
pointer@type_args <- TypeArguments: (H39d2e3b4) [Type: Never]
```
TEST=runtime/tests/vm/dart/regress_54871_test.dart
TEST=tests/ffi/structs_test.dart with --hot-reload-rollback-test-mode
and --optimization-counter-threshold=50
Closes: https://github.com/dart-lang/sdk/issues/54871
Change-Id: I13b6404c8b098643b8ac0f59ee8e9bc635f33b8d
Cq-Include-Trybots: luci.dart.try:vm-reload-rollback-linux-debug-x64-try,vm-reload-rollback-linux-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/352300
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
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| .dart_tool | ||
| .github | ||
| benchmarks | ||
| build | ||
| docs | ||
| pkg | ||
| runtime | ||
| samples | ||
| sdk | ||
| tests | ||
| third_party | ||
| tools | ||
| utils | ||
| .clang-format | ||
| .gitattributes | ||
| .gitconfig | ||
| .gitignore | ||
| .gn | ||
| .mailmap | ||
| .style.yapf | ||
| AUTHORS | ||
| BUILD.gn | ||
| CHANGELOG.md | ||
| codereview.settings | ||
| CONTRIBUTING.md | ||
| DEPS | ||
| LICENSE | ||
| OWNERS | ||
| PATENT_GRANT | ||
| PRESUBMIT.py | ||
| README.dart-sdk | ||
| README.md | ||
| sdk.code-workspace | ||
| sdk_args.gni | ||
| SECURITY.md | ||
| WATCHLISTS | ||
Dart
An approachable, portable, and productive language for high-quality apps on any platform
Dart is:
-
Approachable: Develop with a strongly typed programming language that is consistent, concise, and offers modern language features like null safety and patterns.
-
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See LICENSE and PATENT_GRANT.
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