98db248dc4
This reverts commit a865d16bc2.
Reason for revert: breaks tsan and gc-stress
Original change's description:
> [wasm] Resume suspender on resolved promise
>
> Implement the WasmResume builtin, which resumes a wasm suspender
> when the corresponding JS promise resolves.
>
> Drive-by 1: Fix detection of empty stacks in the stack frame iterator.
> Drive-by 2: Add a stack ID for better tracing.
>
> R=ahaas@chromium.org
> CC=fgm@chromium.org
>
> Bug: v8:12191
> Change-Id: Ifa3f00c4259f802292b04d426c739e9b551f87b9
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3420827
> Reviewed-by: Andreas Haas <ahaas@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#78842}
Bug: v8:12191
Change-Id: I3352c8b1dcc8d99e1bd782a09276add219a3ecda
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3424489
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Owners-Override: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78845}
64 lines
2.5 KiB
JavaScript
64 lines
2.5 KiB
JavaScript
// Copyright 2021 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax --experimental-wasm-stack-switching
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// Flags: --experimental-wasm-type-reflection --expose-gc
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load("test/mjsunit/wasm/wasm-module-builder.js");
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(function TestSuspender() {
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print(arguments.callee.name);
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let suspender = new WebAssembly.Suspender();
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assertTrue(suspender.toString() == "[object WebAssembly.Suspender]");
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assertThrows(() => WebAssembly.Suspender(), TypeError,
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/WebAssembly.Suspender must be invoked with 'new'/);
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})();
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(function TestStackSwitchNoSuspend() {
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print(arguments.callee.name);
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let builder = new WasmModuleBuilder();
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builder.addGlobal(kWasmI32, true).exportAs('g');
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builder.addFunction("test", kSig_v_v)
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.addBody([kExprI32Const, 42, kExprGlobalSet, 0]).exportFunc();
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let instance = builder.instantiate();
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let suspender = new WebAssembly.Suspender();
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let wrapper = suspender.returnPromiseOnSuspend(instance.exports.test);
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wrapper();
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assertEquals(42, instance.exports.g.value);
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})();
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(function TestStackSwitchSuspend() {
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print(arguments.callee.name);
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let builder = new WasmModuleBuilder();
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builder.addGlobal(kWasmI32, true).exportAs('g');
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import_index = builder.addImport('m', 'import', kSig_i_v);
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builder.addFunction("test", kSig_v_v)
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.addBody([
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kExprCallFunction, import_index, // suspend
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kExprGlobalSet, 0 // resume
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]).exportFunc();
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let suspender = new WebAssembly.Suspender();
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function js_import() {
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return new Promise((resolve) => { resolve(42); });
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};
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let wasm_js_import = new WebAssembly.Function({parameters: [], results: ['i32']}, js_import);
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let suspending_wasm_js_import = suspender.suspendOnReturnedPromise(wasm_js_import);
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let instance = builder.instantiate({m: {import: suspending_wasm_js_import}});
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let wrapped_export = suspender.returnPromiseOnSuspend(instance.exports.test);
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let combined_promise = wrapped_export();
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assertEquals(0, instance.exports.g.value);
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})();
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(function TestStackSwitchGC() {
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print(arguments.callee.name);
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let builder = new WasmModuleBuilder();
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let gc_index = builder.addImport('m', 'gc', kSig_v_v);
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builder.addFunction("test", kSig_v_v)
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.addBody([kExprCallFunction, gc_index]).exportFunc();
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let instance = builder.instantiate({'m': {'gc': gc}});
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let suspender = new WebAssembly.Suspender();
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let wrapper = suspender.returnPromiseOnSuspend(instance.exports.test);
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wrapper();
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})();
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