mirror of
https://github.com/rust-lang/rust.git
synced 2024-10-30 22:12:15 +00:00
32 lines
854 B
Rust
32 lines
854 B
Rust
// LLVM 17 realizes double panic is not possible and doesn't generate calls
|
|
// to panic_cannot_unwind.
|
|
//@ compile-flags: -O
|
|
//@ ignore-debug: plain old debug assertions
|
|
//@ needs-unwind
|
|
#![crate_type = "lib"]
|
|
#![feature(shrink_to)]
|
|
|
|
// Make sure that `Vec::shrink_to_fit` never emits panics via `RawVec::shrink_to_fit`,
|
|
// "Tried to shrink to a larger capacity", because the length is *always* <= capacity.
|
|
|
|
// CHECK-LABEL: @shrink_to_fit
|
|
#[no_mangle]
|
|
pub fn shrink_to_fit(vec: &mut Vec<u32>) {
|
|
// CHECK-NOT: panic
|
|
vec.shrink_to_fit();
|
|
}
|
|
|
|
// CHECK-LABEL: @issue71861
|
|
#[no_mangle]
|
|
pub fn issue71861(vec: Vec<u32>) -> Box<[u32]> {
|
|
// CHECK-NOT: panic
|
|
vec.into_boxed_slice()
|
|
}
|
|
|
|
// CHECK-LABEL: @issue75636
|
|
#[no_mangle]
|
|
pub fn issue75636<'a>(iter: &[&'a str]) -> Box<[&'a str]> {
|
|
// CHECK-NOT: panic
|
|
iter.iter().copied().collect()
|
|
}
|