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| author | Yuki Okushi <huyuumi.dev@gmail.com> | 2021-01-27 04:43:37 +0900 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-01-27 04:43:37 +0900 |
| commit | b2f6c2aa9b0f87770b3160500cca2ae370aa618d (patch) | |
| tree | af5df905c660b9ceda7a7b7b5c5b1d7eded76b48 /compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp | |
| parent | d68570c78f698bd913bfc8dae33ebe81590457b7 (diff) | |
| parent | f52066726dd24ae07b1991b53f48ffa25c2b716d (diff) | |
| download | rust-b2f6c2aa9b0f87770b3160500cca2ae370aa618d.tar.gz rust-b2f6c2aa9b0f87770b3160500cca2ae370aa618d.zip | |
Rollup merge of #81412 - hyd-dev:array-assume-init-wrong-assertion, r=m-ou-se
Fix assertion in `MaybeUninit::array_assume_init()` for zero-length arrays
That assertion has a false positive ([playground](https://play.rust-lang.org/?version=nightly&mode=debug&edition=2018&gist=63922b8c897b04112adcdf346deb1d0e)):
```rust
#![feature(maybe_uninit_array_assume_init)]
use std::mem::MaybeUninit;
enum Uninhabited {}
fn main() {
unsafe {
// thread 'main' panicked at 'attempted to instantiate uninhabited type `Uninhabited`'
MaybeUninit::<Uninhabited>::array_assume_init([]);
}
}
```
*Previously reported in https://github.com/rust-lang/rust/pull/80600#discussion_r564496692.*
This PR makes it ignore zero-length arrays.
cc #80908
Diffstat (limited to 'compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp')
0 files changed, 0 insertions, 0 deletions