Use dart compile wasm for wasm compilations
#143298
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LGTM, but @eyebrowsoffire should review, too
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Looks good to me! Eventually I will probably want to get rid of the --omit-type-checks flag and just expose the -O level of the wasm compiler. I assume though that the only differences between -O2 and -O4 at the moment are the type checking?
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Yes please :-) We should align flutter's uses of dart2wasm and dart2js, to also ensure we get fair comparison numbers.
Flutter should simply use the same Yes, right now the difference is type checks, but we may do more alignment between dart2js and dart2wasm in behavior of those flags. |
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Roll Flutter from a628814 to d7867ca (66 revisions) flutter/flutter@a628814...d7867ca 2024-02-16 [email protected] Roll Packages from ef349be to c56c12d (5 revisions) (flutter/flutter#143581) 2024-02-16 [email protected] Update `MaterialStatesController` docs for calling `setState` in a listener (flutter/flutter#143453) 2024-02-16 [email protected] Update `DataTable` docs for disabled `DataRow` ink well (flutter/flutter#143450) 2024-02-16 [email protected] Roll Flutter Engine from b7103bc8b374 to dd530f1556df (17 revisions) (flutter/flutter#143565) 2024-02-16 [email protected] Manual roll Flutter Engine from b7103bc8b374 to 7de84271eb65 (flutter/flutter#143564) 2024-02-16 [email protected] Manual roll Flutter Engine from d3c71d78f8ef to df0dc1fc06ca (flutter/flutter#143563) 2024-02-16 [email protected] Manual roll Flutter Engine from bc4dd534a0fa to d3c71d78f8ef (flutter/flutter#143561) 2024-02-16 [email protected] Manual roll Flutter Engine from edb2745e9834 to bc4dd534a0fa (flutter/flutter#143559) 2024-02-16 [email protected] Manual roll Flutter Engine from 15a358bbaf71 to edb2745e9834 (flutter/flutter#143555) 2024-02-16 [email protected] [devicelab] retain prior events for flutter gallery. (flutter/flutter#143554) 2024-02-16 [email protected] Reland "Disentangle and align flutter build web --wasm flags (#143517)" (flutter/flutter#143549) 2024-02-16 [email protected] Roll Flutter Engine from 3af336bfb2df to 15a358bbaf71 (1 revision) (flutter/flutter#143428) 2024-02-15 [email protected] Android Gradle file templates: make it easier to convert them to Kotlin DSL in the future (flutter/flutter#142146) 2024-02-15 [email protected] Remove bringup from win arm64 builds. (flutter/flutter#143548) 2024-02-15 [email protected] Fix minor spelling error (flutter/flutter#143541) 2024-02-15 [email protected] [devicelab] migrate new gallery benchmarks to local copy. 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Flags to
dart compile wasmSome options are not relevant to a standalone user of
dart compile wasm(e.g. specyfing dart-sdk, platform file etc). => Those aren't offered by thedart compile wasmtool directly. => We use the--extra-compiler-option=instead which passes through arbitrary options to the dart2wasm compiler. => We don't maintain compatibility of those options, if we update them we'll ensure to also update flutter toolsBinaryen optimization passes
This change will mean we use the binaryen flags from Dart SDK which are slightly different from the ones in flutter.
Optimization configuration
This change will also start using the more standardized
-Oflag for determining optimization levels. The meaning of those flags have been mostly aligned with dart2js (with some differences remaining).Minimization
Using the new optimization flags, namely
-O4for--wasm-opt=full, will automatically enable the new--minifysupport. Minification is Dart semantics preserving but changes the<obj>.runtimeType.toString()to use minified names (just as in dart2js).Code size changes
Overall this change will reduce wonderous code size by around 10%.
Issue dart-lang/sdk#54675