Auto merge of #83030 - nikic:update-llvm, r=nagisa

Update llvm-project submodule

Fixes #82833. Fixes #82859. Probably also `fixes` #83025. This also merges in the current upstream 12.x branch.

r? `@nagisa`
This commit is contained in:
bors 2021-03-12 14:16:01 +00:00
commit 215ebc364e
3 changed files with 37 additions and 1 deletions

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Subproject commit 5f958e150d377e608d2f1f208b86110218d5da3c Subproject commit 62a1ddde22c267249eda72184520a21ad2052f0b

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// run-pass
// compile-flags: -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Copt-level=0 -Cdebuginfo=2
// ignore-tidy-linelength
// Make sure LLVM does not miscompile this.
fn make_string(ch: char) -> String {
let mut bytes = [0u8; 4];
ch.encode_utf8(&mut bytes).into()
}
fn main() {
let ch = '😃';
dbg!(ch);
let string = make_string(ch);
dbg!(string);
}

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// run-pass
// compile-flags: -Copt-level=0 -Cdebuginfo=2
// Make sure LLVM does not miscompile this.
fn indirect_get_slice() -> &'static [usize] {
&[]
}
#[inline(always)]
fn get_slice() -> &'static [usize] {
let ret = indirect_get_slice();
ret
}
fn main() {
let output = get_slice().len();
assert_eq!(output, 0);
}