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authorbors <bors@rust-lang.org>2017-12-15 19:02:22 +0000
committerbors <bors@rust-lang.org>2017-12-15 19:02:22 +0000
commit77efd6800c57ba83923dddbbabf03c7afa6a34a4 (patch)
tree3524f06aa28cea73cda2b2c151dc5d817ab80b9a /src/libsyntax/codemap.rs
parent50f6c3ece0ec738da48f8e77e6379a14bd02d1f4 (diff)
parent8a26e0422dc55b82577de3027800ca29a4d522b7 (diff)
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Auto merge of #46623 - eddyb:issue-46449, r=nagisa
rustc_trans: approximate ABI alignment for padding/union fillers.

Before #45225 and after this PR, unions and enums are filled with integers of size and alignment matching their alignment (e.g. `Option<u32>` becomes `[u32; 2]`) instead of mere bytes.
Also, the alignment padding between struct fields gets this treatment after this PR.

Partially helps with some reduced testcases in #46449, although it doesn't solve the bug itself.
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