mirror of https://github.com/rust-lang/rust
42 lines
964 B
Rust
42 lines
964 B
Rust
//@ run-pass
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#![allow(non_upper_case_globals)]
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enum A { A1, A2 }
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enum B { B1=4, B2=2 }
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#[allow(dead_code)]
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#[repr(align(8))]
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enum Aligned {
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Zero = 0,
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One = 1,
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}
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// regression test for https://github.com/rust-lang/rust/issues/96185
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const X: u8 = {
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let aligned = Aligned::Zero;
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aligned as u8
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};
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pub fn main () {
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static c1: isize = A::A2 as isize;
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static c2: isize = B::B2 as isize;
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let a1 = A::A2 as isize;
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let a2 = B::B2 as isize;
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assert_eq!(c1, 1);
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assert_eq!(c2, 2);
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assert_eq!(a1, 1);
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assert_eq!(a2, 2);
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// Turns out that adding a let-binding generates totally different MIR.
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static c1_2: isize = { let v = A::A1; v as isize };
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static c2_2: isize = { let v = B::B1; v as isize };
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let a1_2 = { let v = A::A1; v as isize };
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let a2_2 = { let v = B::B1; v as isize };
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assert_eq!(c1_2, 0);
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assert_eq!(c2_2, 4);
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assert_eq!(a1_2, 0);
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assert_eq!(a2_2, 4);
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assert_eq!(X, 0);
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}
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