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@Centril Centril commented Apr 4, 2019

Successful merges:

Failed merges:

r? @ghost

czipperz and others added 17 commits March 27, 2019 16:37
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
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.
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Centril commented Apr 4, 2019

@bors r+ p=6

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bors commented Apr 4, 2019

📌 Commit 641b2a4 has been approved by Centril

@bors bors added the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Apr 4, 2019
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Centril commented Apr 4, 2019

Adding #59628.

@Centril Centril closed this Apr 4, 2019
@Centril Centril deleted the rollup-tjx3owz branch April 4, 2019 09:23
@Centril Centril added the rollup A PR which is a rollup label Oct 24, 2019
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7 participants