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15 lines
444 B
Rust
15 lines
444 B
Rust
// compile-flags: -O -C no-prepopulate-passes -Z mutable-noalias=yes
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#![crate_type = "lib"]
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use std::sync::{RwLock, RwLockReadGuard};
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// Make sure that `RwLockReadGuard` does not get a `noalias` attribute, because
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// the `RwLock` might alias writes after it is dropped.
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// CHECK-LABEL: @maybe_aliased(
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// CHECK-NOT: noalias
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// CHECK-SAME: %_data
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#[no_mangle]
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pub unsafe fn maybe_aliased(_: RwLockReadGuard<'_, i32>, _data: &RwLock<i32>) {}
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