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