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Rollup of 6 pull requests #59689
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Rollup of 6 pull requests #59689
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Functions with uninhabited return values are already marked `noreturn`, but we were still generating return instructions for this. When running with `-C passes=lint`, LLVM prints: Unusual: Return statement in function with noreturn attribute The LLVM manual makes a stronger statement about `noreturn` though: > This produces undefined behavior at runtime if the function ever does dynamically return. We now emit an `abort` anywhere that would have tried to return an uninhabited value.
…dtolnay Document std::fs::File close behavior ignoring errors Resolves rust-lang#52685
update miri r? @oli-obk Fixes rust-lang#59477
update stdsimd Cc @gnzlbg
Never return uninhabited values at all Functions with uninhabited return values are already marked `noreturn`, but we were still generating return instructions for this. When running with `-C passes=lint`, LLVM prints: Unusual: Return statement in function with noreturn attribute The LLVM manual makes a stronger statement about `noreturn` though: > This produces undefined behavior at runtime if the function ever does dynamically return. We now emit an `abort` anywhere that would have tried to return an uninhabited value. Fixes rust-lang#48227 cc rust-lang#7463 rust-lang#48229 r? @eddyb
Add description for -Os and -Oz in rustc.1
… r=luqmana Temporarily disable stack probing for gnux32.
@bors r+ p=6 |
📌 Commit 641b2a4 has been approved by |
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Apr 4, 2019
Adding #59628. |
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Status: Waiting on bors to run and complete tests. Bors will change the label on completion.
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r? @ghost