[CIR] Extend CIR canonicalize to rewrite ptr_stride and array_to_ptrdecay to get_element when possible
#1761
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…o_ptrdecay` operations that can be simplified to `get_element` Extended the `CIRCanonicalizePass` with new rewrite rules: Rewrite `ptr_stride (cast array_to_ptrdecay %base), %index` to `get_element %base[%index]` Rewrite `ptr_stride (get_element %base[%index]), %stride` to `get_element %base[%index + %stride]` Rewrite `cast array_to_ptrdecay %base, ptr<T>` to `get_element %base[0], ptr<T>` if it is only used by `load %ptr : T`, `store %val : T, %ptr`, or `get_member %ptr[field] : ptr<T> -> U`
xlauko
reviewed
Jul 26, 2025
…<T>()` Co-authored-by: Henrich Lauko <xlauko@mail.muni.cz>
Co-authored-by: Henrich Lauko <xlauko@mail.muni.cz>
Co-authored-by: Henrich Lauko <xlauko@mail.muni.cz>
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Thanks for the review @xlauko, I've applied to requested changes. |
bcardosolopes
approved these changes
Jul 28, 2025
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Extended the
CIRCanonicalizePasswith new rewrite rules:ptr_stride (cast array_to_ptrdecay %base), %indextoget_element %base[%index]ptr_stride (get_element %base[%index]), %stridetoget_element %base[%index + %stride]cast array_to_ptrdecay %base, ptr<T>toget_element %base[0], ptr<T>if it is only used byload %ptr : T,store %val : T, %ptr, orget_member %ptr[field] : ptr<T> -> UUpdated CodeGen tests, and extended CIR-to-CIR test.