[TIR] Add tir::builtin::undef #12266
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This is currently a draft PR, as the unit tests depend on functionality introduced in #12264. |
wrongtest-intellif
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Aug 3, 2022
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Rebased onto main to resolve conflict with #12267. |
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Nov 25, 2022
* [UnitTest] RemoveStoreUndef, simplest behavior * [RemoveStoreUndef] First implementation * [UnitTest] RemoveStoreUndef, stores that depend through LetStmt * [UnitTest] RemoveStoreUndef, LetStmt handling, error on illegal usage * [RemoveStoreUndef] Added error checking for illegal T.undef() usage * Fix lint error * Use const ref for list of stores to remove * Verify that removed expression has no other side effects * Fix lint error
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This PR introduces
tir::builtin::undef, which is used to represent values that are an arbitrary value of a known datatype, along with a transformation to remove instances oftir::builtin::undef.This PR is part of the handling of padded buffer layout transformations (tracking issue, rfc).