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//@ unit-test: GVN
//@ compile-flags: -O
// Regression test for https://github.com/rust-lang/rust/issues/118328
#![allow(unused_assignments)]
struct SizeOfConst<T>(std::marker::PhantomData<T>);
impl<T> SizeOfConst<T> {
const SIZE: usize = std::mem::size_of::<T>();
}
// EMIT_MIR overwrite_with_const_with_params.size_of.GVN.diff
fn size_of<T>() -> usize {
// CHECK-LABEL: fn size_of(
// CHECK: _1 = const 0_usize;
// CHECK-NEXT: _1 = const SizeOfConst::<T>::SIZE;
// CHECK-NEXT: _0 = _1;
let mut a = 0;
a = SizeOfConst::<T>::SIZE;
a
}
fn main() {
assert_eq!(size_of::<u32>(), std::mem::size_of::<u32>());
}
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