Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 0e9b6ac9acdafb0b910eb418f61aac05ae09058c
https://github.com/WebKit/WebKit/commit/0e9b6ac9acdafb0b910eb418f61aac05ae09058c
Author: Dan Hecht <[email protected]>
Date: 2025-02-19 (Wed, 19 Feb 2025)
Changed paths:
M Source/JavaScriptCore/b3/air/AirAllocateRegistersByGreedy.cpp
M Source/JavaScriptCore/runtime/OptionsList.h
Log Message:
-----------
[JSC][GreedyRegAlloc] Add airGreedyRegAllocSplitMultiplier option with
default 2
https://bugs.webkit.org/show_bug.cgi?id=288004
rdar://145166903
Reviewed by Yusuke Suzuki.
Value of 2 is chosen based on benchmark results and spot checking code
after register allocation.
It's useful to have this as an option since setting it to 0 will
cause the register allocator to split at every opportunity which
can stress test that logic.
* Source/JavaScriptCore/b3/air/AirAllocateRegistersByGreedy.cpp:
(JSC::B3::Air::Greedy::GreedyAllocator::trySplitAroundClobbers):
* Source/JavaScriptCore/runtime/OptionsList.h:
Canonical link: https://commits.webkit.org/290659@main
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