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4d5055805f
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>
47 lines
1.3 KiB
Dart
47 lines
1.3 KiB
Dart
// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// @dart = 2.9
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import 'dart:ffi';
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import 'dylib_utils.dart';
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import "package:expect/expect.dart";
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final ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
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typedef NativeCallbackTest = Int32 Function(Pointer);
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typedef NativeCallbackTestFn = int Function(Pointer);
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class CallbackTest {
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final String name;
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final Pointer callback;
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final void Function() afterCallbackChecks;
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final bool isLeaf;
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CallbackTest(this.name, this.callback, {this.isLeaf: false})
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: afterCallbackChecks = noChecks {}
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CallbackTest.withCheck(this.name, this.callback, this.afterCallbackChecks,
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{this.isLeaf: false}) {}
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void run() {
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final NativeCallbackTestFn tester = isLeaf
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? ffiTestFunctions.lookupFunction<NativeCallbackTest,
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NativeCallbackTestFn>("Test$name", isLeaf: true)
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: ffiTestFunctions.lookupFunction<NativeCallbackTest,
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NativeCallbackTestFn>("Test$name", isLeaf: false);
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final int testCode = tester(callback);
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if (testCode != 0) {
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Expect.fail("Test $name failed.");
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}
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afterCallbackChecks();
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}
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}
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void noChecks() {}
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