Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 5525e18807d3b5940d8bfb57861cd296239cf53f
https://github.com/WebKit/WebKit/commit/5525e18807d3b5940d8bfb57861cd296239cf53f
Author: Yijia Huang <[email protected]>
Date: 2025-05-01 (Thu, 01 May 2025)
Changed paths:
M Source/JavaScriptCore/dfg/DFGLoopUnrollingPhase.cpp
Log Message:
-----------
[JSC] DFGLoopUnrollingPhase: Refactor material node tracking and add per-op
node type stats
https://bugs.webkit.org/show_bug.cgi?id=292401
rdar://150482513
Reviewed by Yusuke Suzuki.
This patch refactors how material (code-emitting) nodes are counted during loop
unrolling analysis.
Previously, this logic was inlined in isLoopBodyUnrollable(). It is now
encapsulated in
LoopData::analyzeLoopNode() and the materialNodeCount field, improving
modularity and readability.
Additionally, if the verboseLoopUnrolling flag is enabled, we now log a
breakdown of node types
used in each unrolling candidate loop. This helps with debugging and tuning
unrolling heuristics.
No functional behavior has changed; this is a refactor plus diagnostic
enhancement.
* Source/JavaScriptCore/dfg/DFGLoopUnrollingPhase.cpp:
(JSC::DFG::LoopUnrollingPhase::locateTail):
(JSC::DFG::LoopUnrollingPhase::isLoopBodyUnrollable):
(JSC::DFG::LoopUnrollingPhase::LoopData::analyzeLoopNode):
(JSC::DFG::LoopUnrollingPhase::dumpLoopNodeTypeStats):
(JSC::DFG::LoopUnrollingPhase::LoopData::dump const):
(JSC::DFG::LoopUnrollingPhase::LoopData::isMaterialNode):
(JSC::DFG::LoopUnrollingPhase::isMaterialNode): Deleted.
Canonical link: https://commits.webkit.org/294416@main
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