Rollup of 5 pull requests #24562
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Rollup of 5 pull requests #24562
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Manishearth
commented
Apr 18, 2015
Manishearth
commented
- Successful merges: More TRPL edits #24466, Emit correct alignment information for loads/store of small aggregates #24472, Bump prerelease to .3 #24532, Rollup of all extended-error PRs. #24542, Reference tidying #24548
- Failed merges: Add long diagnostics for E0133. #24552
…crichton Link to the big chapter for now, and add move semantics.
Loading from and storing to small aggregates happens by casting the aggregate pointer to an appropriately sized integer pointer to avoid the usage of first class aggregates which would lead to less optimized code. But this means that, for example, a tuple of type (i16, i16) will be loading through an i32 pointer and because we currently don't provide alignment information LLVM assumes that the load should use the ABI alignment for i32 which would usually be 4 byte alignment. But the alignment requirement for the (i16, i16) tuple will usually be just 2 bytes, so we're overestimating alignment, which invokes undefined behaviour. Therefore we must emit appropriate alignment information for stores/loads through such casted pointers. Fixes rust-lang#23431
I did a manual merge of all the extended error PRs as we were getting merge conflicts yesterday. I think this is preferable to merging separately as I ended up having to manually merge @nham and @GuillaumeGomez's commits. Rollup of rust-lang#24458, rust-lang#24482 and rust-lang#24488. rust-lang#24482 and rust-lang#24488 were already re-approved, and would need to be cancelled if this is merged instead.
…labnik This just deletes some egregious lies and obsolete terminology -- all of which I originally wrote -- from the reference. I expect the reference itself will be deleted soon enough, but I found myself gritting teeth over these bits too much to let them into a 1.0 release.
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(rust_highfive has picked a reviewer for you, use r? to override) |
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@bors: r+ p=20 force |
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📌 Commit 695efb5 has been approved by |
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⌛ Testing commit 695efb5 with merge 447c1c1... |
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💔 Test failed - auto-linux-64-nopt-t |
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@bors: r+ p=20 force |
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📌 Commit 88601f8 has been approved by |
This was referenced Apr 18, 2015
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