[CodeGen] Introduce MachineLaneSSAUpdater for SSA Repair in Machine IR#163421

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alex-t wants to merge 8 commits intollvm:mainfrom

alex-t:mssa-updater

Commits on Oct 2, 2025

[CodeGen] Implement MachineLaneSSAUpdater for lane-aware SSA repair
alex-t
committed

Commits on Oct 6, 2025

[CodeGen] Refactor and implement MachineLaneSSAUpdater for lane-aware SSA repair
alex-t
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Commits on Oct 8, 2025

[CodeGen] MachineLaneSSAUpdater bugfixing, refactoring and unittests. WIP.
alex-t
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Commits on Oct 9, 2025

[CodeGen] MachineLaneSSAUpdater - added new unit tests
alex-t
committed

Commits on Oct 10, 2025

[CodeGen] MachineLaneSSAUpdater - all unit test for all cases of the usual new definition handling finished
alex-t
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Commits on Oct 13, 2025

[CodeGen] Add MachineLaneSSAUpdater tests and simplify API
alex-t
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Commits on Oct 15, 2025

[CodeGen] MachineLaneSSAUpdater Unit test debug output fixed
alex-t
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Commits on Oct 16, 2025

[MachineLaneSSAUpdater] Add optional NewVReg parameter to repairSSAForNewDef
alex-t
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