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![]() This CL adds FFI leaf calls by adding `lookupFunction(.., isLeaf)` and `_asFunctionInternal(.., isLeaf)`, which generate FFI leaf calls. These calls skip a lot of the usual frame building and generated <-> native transition overhead. `benchmark/FfiCall/` shows a 1.1x - 4.3x speed-up between the regular FFI calls and their leaf call counterparts (JIT, x64, release). TEST=Adds `tests/ffi{,_2}/vmspecific_leaf_call_test.dart`. Tested FFI tests. Closes: https://github.com/dart-lang/sdk/issues/36707 Cq-Include-Trybots: luci.dart.try:vm-precomp-ffi-qemu-linux-release-arm-try,vm-ffi-android-release-arm64-try,vm-ffi-android-release-arm-try,vm-ffi-android-product-arm64-try,vm-ffi-android-product-arm-try,vm-ffi-android-debug-arm64-try,vm-ffi-android-debug-arm-try,vm-kernel-linux-debug-ia32-try,vm-kernel-win-debug-ia32-try,vm-kernel-win-debug-x64-try,vm-kernel-win-release-x64-try,vm-kernel-mac-debug-x64-try,vm-kernel-precomp-nnbd-mac-release-simarm64-try,vm-kernel-precomp-android-release-arm64-try,vm-kernel-precomp-asan-linux-release-x64-try,vm-kernel-precomp-linux-release-simarm_x64-try,vm-kernel-precomp-obfuscate-linux-release-x64-try,vm-kernel-precomp-ubsan-linux-release-x64-try,vm-kernel-precomp-tsan-linux-release-x64-try,vm-kernel-precomp-win-release-x64-try,vm-precomp-ffi-qemu-linux-release-arm-try,vm-kernel-reload-rollback-linux-debug-x64-try,vm-kernel-reload-linux-debug-x64-try Bug: https://github.com/dart-lang/sdk/issues/36707 Change-Id: Id8824f36b0006bf09951207bd004356fe6e9f46e Cq-Do-Not-Cancel-Tryjobs: true Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/179768 Commit-Queue: Clement Skau <cskau@google.com> Reviewed-by: Daco Harkes <dacoharkes@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com> |
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