Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: fda68a8bb055d56008d965dedc091eaed2b2f7c6
https://github.com/WebKit/WebKit/commit/fda68a8bb055d56008d965dedc091eaed2b2f7c6
Author: Yusuke Suzuki <[email protected]>
Date: 2026-09-21 (Mon, 21 Sep 2026)
Changed paths:
M Source/JavaScriptCore/b3/air/AirFixObviousSpills.cpp
Log Message:
-----------
[JSC] Air FixObviousSpills state should track aliased regs
https://bugs.webkit.org/show_bug.cgi?id=324695
rdar://187965961
Reviewed by Dan Hecht.
State::clobber(Reg) is very frequently called as it is called once per
def of regs in Air::Inst.
1. For regConst case, one reg can only have one const. So instead of
having Vector of Reg and Const pair, we have std::array for const
value with Reg-index. And we have ScalarRegisterSet for set constReg.
2. To quickly know whether we have RegSlot for a particular Reg, we
maintain ScalarRegisterSet regSlotRegs bitset.
* Source/JavaScriptCore/b3/air/AirFixObviousSpills.cpp:
Canonical link: https://commits.webkit.org/321519@main
To unsubscribe from these emails, change your notification settings at
https://github.com/WebKit/WebKit/settings/notifications
