30 lines
766 B
Rust
30 lines
766 B
Rust
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// skip-filecheck
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//@ test-mir-pass: GVN
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// EMIT_MIR gvn_on_unsafe_binder.test.GVN.diff
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// EMIT_MIR gvn_on_unsafe_binder.propagate.GVN.diff
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#![feature(unsafe_binders)]
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use std::unsafe_binder::wrap_binder;
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// Test for ICE <https://github.com/rust-lang/rust/issues/137846>.
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fn test() {
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unsafe {
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let x = 1;
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let binder: unsafe<'a> &'a i32 = wrap_binder!(&x);
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}
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}
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// Test that GVN propagates const values through unsafe binders.
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//
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// The lifetime `'a` is redundant (and doesn't print when we print out the type).
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// However, we need it so that rustfmt doesn't rip out the `unsafe<>` part for now.
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fn propagate() -> unsafe<'a> i32 {
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unsafe {
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let x = 1;
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let binder: unsafe<'a> i32 = wrap_binder!(x);
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binder
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}
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}
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