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[MS] Fix packed struct layout for arrays of aligned non-record types

Authored by rnk on Apr 8 2020, 2:09 PM.



In particular, this affects Clang's vectors. Users encounter this issue
when a struct contains an __m128 type.

Fixes PR45420

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rnk created this revision.Apr 8 2020, 2:09 PM
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rjmccall accepted this revision.Apr 10 2020, 10:52 PM

Okay, so this is basically just saying that the required-alignment-defeats-packed rule looks through arrays? Make sense. LGTM.

This revision is now accepted and ready to land.Apr 10 2020, 10:52 PM
This revision was automatically updated to reflect the committed changes.