Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 81f52509684ddc620c4c121aa8a3d226953687f6
https://github.com/WebKit/WebKit/commit/81f52509684ddc620c4c121aa8a3d226953687f6
Author: Yusuke Suzuki <[email protected]>
Date: 2023-05-09 (Tue, 09 May 2023)
Changed paths:
M Source/JavaScriptCore/jit/BaselineJITPlan.cpp
M Source/JavaScriptCore/jit/BaselineJITPlan.h
M Source/JavaScriptCore/jit/JIT.cpp
M Source/JavaScriptCore/jit/JIT.h
Log Message:
-----------
[JSC] JSC::JIT should be fully created and destroyed in the compiler thread
https://bugs.webkit.org/show_bug.cgi?id=256394
rdar://108965411
Reviewed by Justin Michaud.
This patch avoids creating and destroying JSC::JIT in the main thread. This is
involving a lot of costly things,
like AssemblerBuffer instantiation, destruction of many data structures related
to JIT etc.
This is the same to DFG / FTL: compiler should be instantiated in the compiler
thread. From the compiler thread,
we get BaselineJITCode and LinkBuffer, and run the remaining main-thread task
in BaselineJITPlan::finalize.
* Source/JavaScriptCore/jit/BaselineJITPlan.cpp:
(JSC::BaselineJITPlan::BaselineJITPlan):
(JSC::BaselineJITPlan::compileInThreadImpl):
(JSC::BaselineJITPlan::codeSize const):
(JSC::BaselineJITPlan::finalize):
* Source/JavaScriptCore/jit/BaselineJITPlan.h:
* Source/JavaScriptCore/jit/JIT.cpp:
(JSC::JIT::compileAndLinkWithoutFinalizing):
(JSC::JIT::link):
(JSC::JIT::finalizeOnMainThread):
(JSC::JIT::privateCompile):
(JSC::JIT::doMainThreadPreparationBeforeCompile):
(JSC::JIT::codeSize const): Deleted.
* Source/JavaScriptCore/jit/JIT.h:
Canonical link: https://commits.webkit.org/263878@main
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