mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-27 09:14:20 +00:00
32 lines
803 B
Rust
32 lines
803 B
Rust
// Verify that we do not trigger an LLVM assertion by creating zero-sized DWARF fragments.
|
|
//
|
|
// build-pass
|
|
// compile-flags: -g -Zmir-opt-level=0 -Zmir-enable-passes=+ScalarReplacementOfAggregates
|
|
// compile-flags: -Cno-prepopulate-passes
|
|
|
|
#![crate_type = "lib"]
|
|
|
|
pub struct ExtraSlice<'input> {
|
|
slice: &'input [u8],
|
|
extra: u32,
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub fn extra(s: &[u8]) {
|
|
let slice = ExtraSlice { slice: s, extra: s.len() as u32 };
|
|
}
|
|
|
|
struct Zst;
|
|
|
|
pub struct ZstSlice<'input> {
|
|
slice: &'input [u8],
|
|
extra: Zst,
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub fn zst(s: &[u8]) {
|
|
// The field `extra` is a ZST. The fragment for the field `slice` encompasses the whole
|
|
// variable, so is not a fragment. In that case, the variable must have no fragment.
|
|
let slice = ZstSlice { slice: s, extra: Zst };
|
|
}
|