22 lines
496 B
Rust
22 lines
496 B
Rust
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// skip-filecheck
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//@ test-mir-pass: GVN
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//@ only-64bit
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//@ compile-flags: -Z mir-enable-passes=+Inline
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// Regression for <https://github.com/rust-lang/rust/issues/127089>
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struct Foo<T>(std::marker::PhantomData<T>);
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impl<T> Foo<T> {
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const SENTINEL: *mut T = std::ptr::dangling_mut();
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fn cmp_ptr(a: *mut T) -> bool {
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std::ptr::eq(a, Self::SENTINEL)
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}
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}
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// EMIT_MIR gvn_ptr_eq_with_constant.main.GVN.diff
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pub fn main() {
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Foo::<u8>::cmp_ptr(std::ptr::dangling_mut());
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}
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