Extend DotGeneral CSE to recognize operand-swapped equivalence#1726

Draft

Copilot wants to merge 8 commits intomainfrom

copilot/expand-dotgeneral-cse-pass

Commits on Dec 11, 2025

Initial plan
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Add specialized CSE pattern for DotGeneralOp with operand swapping

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avik-pal
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Update test cases to only include valid CSE scenarios

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avik-pal
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Refactor CSEDotGeneral to eliminate code duplication

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avik-pal
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Address code review feedback: extract dimension checking helper and remove unnecessary checks

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avik-pal
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Fix trailing newlines in test file
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Further refactor to eliminate remaining code duplication

Copilot
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avik-pal
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Refactor CSEDotGeneral to reuse more of the generic CSE pattern structure

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avik-pal
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