For single argument FFI calls:
- reduces trampoline size significantly (up to 50%, 150-170 bytes),
- reduces the compressed size of GPay by 2.5kb on arm64,
- regresses performance on arm64 (up to 2.5%).
For more arguments, percentage-wise size gains and speed regressions
are smaller.
Only applied on arm and arm64, we care about code size for these.
Note: On Raspberry Pie (arm), the performance regression on single-
argument calls regresses up to 30%.
TEST=tests/ffi/*
Design doc: https://go/dart-ffi-outline-state-transitions
Closes: https://github.com/dart-lang/sdk/issues/50094
Change-Id: I8b8d7da45f69be6ac1432b11b695de71e56acfd1
Cq-Include-Trybots: luci.dart.try:vm-precomp-ffi-qemu-linux-release-arm-try,vm-ffi-android-debug-arm64c-try,vm-ffi-android-debug-arm-try,vm-kernel-nnbd-mac-debug-arm64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/262343
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
