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[ControlFlowOpt](fix) preserve same-base pointer provenance - #1921

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[ControlFlowOpt](fix) preserve same-base pointer provenance#1921
elstainniles wants to merge 1 commit into
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elstainniles:fix/cfo-tensor-ptr-same-base-dominance

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@elstainniles elstainniles commented Sep 2, 2026 •
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Summary

  • Preserve descriptor provenance for rebuilt pointer values across chained pointer rewrites.
  • Add a regression MLIR case covering same-base tensor pointer control flow with chained addptr operations.
  • The change is contained in ControlFlowOpt and does not alter unrelated lowering paths.

@github-actions github-actions Bot added compiler Changes to C/C++ compiler backend (lib/, include/) python Changes to Python runtime or bindings ascend-backend Changes to the Ascend NPU backend labels Sep 2, 2026
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@KanuaK KanuaK Awaiting requested review from KanuaK KanuaK is a code owner
@WuTYSFG WuTYSFG Awaiting requested review from WuTYSFG WuTYSFG is a code owner
@hongziqi hongziqi Awaiting requested review from hongziqi hongziqi is a code owner

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ascend-backend Changes to the Ascend NPU backend compiler Changes to C/C++ compiler backend (lib/, include/) python Changes to Python runtime or bindings

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