[cfe-commits] patch: add "suitably aligned" value to TargetInfo

[Nick Lewycky]

The attached patch adds a method to Basic/TargetInfo to return the suitable
alignment, above which any object is considered over-aligned. This value is
also equal to the amount of alignment you're guaranteed to get out of
malloc and equal to alignof(std::max_align_t).

Please review!

Nick
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