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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /js/src/jit/IonCompileTask.h | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/jit/IonCompileTask.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/js/src/jit/IonCompileTask.h b/js/src/jit/IonCompileTask.h new file mode 100644 index 0000000000..c997c13bc6 --- /dev/null +++ b/js/src/jit/IonCompileTask.h @@ -0,0 +1,89 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- + * vim: set ts=8 sts=2 et sw=2 tw=80: + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef jit_IonCompileTask_h +#define jit_IonCompileTask_h + +#include "mozilla/LinkedList.h" + +#include "jit/MIRGenerator.h" + +#include "js/Utility.h" +#include "vm/HelperThreadTask.h" + +struct JS_PUBLIC_API JSContext; + +namespace js { +namespace jit { + +class CodeGenerator; +class WarpSnapshot; + +// IonCompileTask represents a single off-thread Ion compilation task. +class IonCompileTask final : public HelperThreadTask, + public mozilla::LinkedListElement<IonCompileTask> { + MIRGenerator& mirGen_; + + // If off thread compilation is successful, the final code generator is + // attached here. Code has been generated, but not linked (there is not yet + // an IonScript). This is heap allocated, and must be explicitly destroyed, + // performed by FinishOffThreadTask(). + CodeGenerator* backgroundCodegen_ = nullptr; + + WarpSnapshot* snapshot_ = nullptr; + + // Alias of the JSContext field of this task, to determine the priority of + // compiling this script. Contexts are destroyed after the pending tasks are + // removed from the helper threads. Thus this should be safe. + const mozilla::Atomic<bool, mozilla::ReleaseAcquire>& isExecuting_; + + public: + explicit IonCompileTask(JSContext* cx, MIRGenerator& mirGen, + WarpSnapshot* snapshot); + + JSScript* script() { return mirGen_.outerInfo().script(); } + MIRGenerator& mirGen() { return mirGen_; } + TempAllocator& alloc() { return mirGen_.alloc(); } + WarpSnapshot* snapshot() { return snapshot_; } + + size_t sizeOfExcludingThis(mozilla::MallocSizeOf mallocSizeOf); + void trace(JSTracer* trc); + + CodeGenerator* backgroundCodegen() const { return backgroundCodegen_; } + void setBackgroundCodegen(CodeGenerator* codegen) { + backgroundCodegen_ = codegen; + } + + // Return whether the main thread which scheduled this task is currently + // executing JS code. This changes the way we prioritize tasks. + bool isMainThreadRunningJS() const { return isExecuting_; } + + ThreadType threadType() override { return THREAD_TYPE_ION; } + void runTask(); + void runHelperThreadTask(AutoLockHelperThreadState& locked) override; +}; + +class IonFreeTask : public HelperThreadTask { + public: + explicit IonFreeTask(IonCompileTask* task) : task_(task) {} + IonCompileTask* compileTask() { return task_; } + + ThreadType threadType() override { return THREAD_TYPE_ION_FREE; } + void runHelperThreadTask(AutoLockHelperThreadState& locked) override; + + private: + IonCompileTask* task_; +}; + +void AttachFinishedCompilations(JSContext* cx); +void FinishOffThreadTask(JSRuntime* runtime, IonCompileTask* task, + const AutoLockHelperThreadState& lock); +void FreeIonCompileTask(IonCompileTask* task); + +} // namespace jit +} // namespace js + +#endif /* jit_IonCompileTask_h */ |