Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: dd6466790ff0627f99c0321f2b61214dc4971dde
https://github.com/WebKit/WebKit/commit/dd6466790ff0627f99c0321f2b61214dc4971dde
Author: Yijia Huang <[email protected]>
Date: 2025-04-15 (Tue, 15 Apr 2025)
Changed paths:
M Source/JavaScriptCore/dfg/DFGCloneHelper.h
M Source/JavaScriptCore/dfg/DFGLoopUnrollingPhase.cpp
Log Message:
-----------
[JSC] Fix CloneHelper usage in loop unrolling to pass both original and clone
blocks
https://bugs.webkit.org/show_bug.cgi?id=291543
rdar://149243490
Reviewed by Yusuke Suzuki.
Fixes the call to CloneHelper::cloneBlock to correctly pass both the original
and cloned
BasicBlock to the customization lambda. This ensures the successor
customization logic
can distinguish which block is being cloned and update the tail block’s branch
correctly.
Previously, only the clone block was passed, which caused ambiguity and
incorrect behavior
when customizing successors in loop unrolling.
Also updates the loop unrolling logic to clone from the loop header directly
instead of
looping through all blocks, simplifying the logic and improving correctness.
* Source/JavaScriptCore/dfg/DFGCloneHelper.h:
(JSC::DFG::CloneHelper::cloneBlock):
* Source/JavaScriptCore/dfg/DFGLoopUnrollingPhase.cpp:
(JSC::DFG::LoopUnrollingPhase::unrollLoop):
Canonical link: https://commits.webkit.org/293708@main
To unsubscribe from these emails, change your notification settings at
https://github.com/WebKit/WebKit/settings/notifications
_______________________________________________
webkit-changes mailing list
[email protected]
https://lists.webkit.org/mailman/listinfo/webkit-changes
