Vectorizer: propagate alignment of memory accesses #3451
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Currently it's always 8 but having this argument will help us consider alignment for new vector sequences.
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Explicitly propagate alignment of memory operations to
simd_selection.This is just a small refactoring to help us think about alignment when we vectorizer new operations.
Currently, the alignment is always 8 but having this argument will help us consider alignment for new vector sequences and hopefully avoid bugs.