Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 4f8543eb59c333c82931a72c54759848f0b7cf12
https://github.com/WebKit/WebKit/commit/4f8543eb59c333c82931a72c54759848f0b7cf12
Author: Marcus Plutowski <marcus_plutow...@apple.com>
Date: 2025-03-10 (Mon, 10 Mar 2025)
Changed paths:
M Source/JavaScriptCore/b3/B3BackwardsCFG.h
M Source/JavaScriptCore/b3/B3BackwardsDominators.h
M Source/JavaScriptCore/b3/B3BasicBlock.cpp
M Source/JavaScriptCore/b3/B3BasicBlock.h
M Source/JavaScriptCore/b3/B3CFG.h
M Source/JavaScriptCore/b3/B3CheckSpecial.cpp
M Source/JavaScriptCore/b3/B3CheckSpecial.h
M Source/JavaScriptCore/b3/B3Dominators.h
M Source/JavaScriptCore/b3/B3NaturalLoops.h
M Source/JavaScriptCore/b3/B3PhiChildren.cpp
M Source/JavaScriptCore/b3/B3PhiChildren.h
M Source/JavaScriptCore/b3/B3Procedure.cpp
M Source/JavaScriptCore/b3/B3Procedure.h
M Source/JavaScriptCore/b3/B3StackmapSpecial.h
M Source/JavaScriptCore/b3/B3TZoneImpls.cpp
M Source/JavaScriptCore/b3/B3Value.cpp
M Source/JavaScriptCore/b3/B3Value.h
M Source/JavaScriptCore/b3/B3ValueRep.cpp
M Source/JavaScriptCore/b3/B3ValueRep.h
M Source/JavaScriptCore/b3/B3Variable.cpp
M Source/JavaScriptCore/b3/B3Variable.h
M Source/JavaScriptCore/dfg/DFGSlowPathGenerator.h
M Source/JavaScriptCore/ftl/FTLState.cpp
M Source/JavaScriptCore/wasm/WasmOMGIRGenerator.cpp
M Source/JavaScriptCore/wasm/WasmOMGIRGenerator32_64.cpp
Log Message:
-----------
[JSC] Allocate b3 types using SequesteredArenaAllocator
https://bugs.webkit.org/show_bug.cgi?id=287995
rdar://145159538
Reviewed by Yijia Huang.
This covers all of the air-internal types whose lifetimes do not extend
past that of a compilation job. Allocating these out of the arena is
intended to improve security and performance.
Note that this does not yet cover all bytes used by Air: components
which themselves allocate (e.g. Vector) need to be handled separately.
This patch just ensures that when the top-level types are allocated
directly, they're allocated using SequesteredArenaMalloc.
The primary notable type not covered is the B3DataSection, which will
need to be allocated using the future persistent allocator.
* Source/JavaScriptCore/b3/B3BackwardsCFG.h:
* Source/JavaScriptCore/b3/B3BackwardsDominators.h:
* Source/JavaScriptCore/b3/B3BasicBlock.cpp:
* Source/JavaScriptCore/b3/B3BasicBlock.h:
* Source/JavaScriptCore/b3/B3CFG.h:
* Source/JavaScriptCore/b3/B3CheckSpecial.cpp:
* Source/JavaScriptCore/b3/B3CheckSpecial.h:
* Source/JavaScriptCore/b3/B3DataSection.h:
* Source/JavaScriptCore/b3/B3Dominators.h:
* Source/JavaScriptCore/b3/B3NaturalLoops.h:
* Source/JavaScriptCore/b3/B3PhiChildren.cpp:
* Source/JavaScriptCore/b3/B3PhiChildren.h:
* Source/JavaScriptCore/b3/B3Procedure.cpp:
* Source/JavaScriptCore/b3/B3Procedure.h:
* Source/JavaScriptCore/b3/B3StackmapSpecial.h:
* Source/JavaScriptCore/b3/B3TZoneImpls.cpp:
* Source/JavaScriptCore/b3/B3Value.cpp:
* Source/JavaScriptCore/b3/B3Value.h:
* Source/JavaScriptCore/b3/B3ValueRep.cpp:
* Source/JavaScriptCore/b3/B3ValueRep.h:
* Source/JavaScriptCore/b3/B3Variable.cpp:
* Source/JavaScriptCore/b3/B3Variable.h:
* Source/JavaScriptCore/ftl/FTLState.cpp:
(JSC::FTL::State::State):
* Source/JavaScriptCore/wasm/WasmOMGIRGenerator.cpp:
(JSC::Wasm::parseAndCompileOMG):
* Source/JavaScriptCore/wasm/WasmOMGIRGenerator32_64.cpp:
(JSC::Wasm::parseAndCompileOMG):
Canonical link: https://commits.webkit.org/291921@main
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