rust/tests/ui/debuginfo/sroa-fragment-debuginfo.rs
2024-02-16 20:02:50 +00:00

32 lines
806 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 };
}