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c9c80d2c5f
The only non-obvious changes: - `building/storage_live_dead_in_statics.rs` has a `#[rustfmt::skip]` attribute to avoid reformating a table of data. - Two `.mir` files have slight changes involving line numbers. - In `unusual_item_types.rs` an `EMIT_MIR` annotation is moved to outside a function, which is the usual spot, because `tidy` complains if such a comment is indented. The commit also tweaks the comments in `rustfmt.toml`.
17 lines
432 B
Rust
17 lines
432 B
Rust
// skip-filecheck
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// EMIT_MIR issue_75439.foo.MatchBranchSimplification.diff
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//@ ignore-endian-big
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use std::mem::transmute;
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pub fn foo(bytes: [u8; 16]) -> Option<[u8; 4]> {
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// big endian `u32`s
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let dwords: [u32; 4] = unsafe { transmute(bytes) };
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const FF: u32 = 0x0000_ffff_u32.to_be();
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if let [0, 0, 0 | FF, ip] = dwords { Some(unsafe { transmute(ip) }) } else { None }
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}
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fn main() {
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let _ = foo([0; 16]);
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}
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