[REFACTOR][Arith] Delete IntGroupBounds::Substitute - #20305
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tqchen merged 1 commit intoSep 10, 2026
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tlopex
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Sep 10, 2026
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Delete the redundant
IntGroupBounds::Substitutehelper and use reflected pre-orderStructuralMapat its only call site.Also use checked
as_or_throw<T>()conversion for arith StructuralMap results and move values out of successful map lookups.IterMarkNodeDAG semantics are unchanged.Validation: LLVM 17 CPU build; focused arith tests (11 passed, 1 skipped); C++ tests (133/133 passed); clang-format.