rust/tests/mir-opt/inline/polymorphic_recursion.rs

27 lines
772 B
Rust

// skip-filecheck
// Make sure that the MIR inliner does not loop indefinitely on polymorphic recursion.
//@ compile-flags: --crate-type lib
// Randomize `def_path_hash` by defining them under a module with different names
macro_rules! emit {
($($m:ident)*) => {$(
pub mod $m {
pub trait Tr { type Next: Tr; }
pub fn hoge<const N: usize, T: Tr>() {
inner::<N, T>();
}
#[inline(always)]
fn inner<const N: usize, T: Tr>()
{
inner::<N, T::Next>();
inner::<N, T::Next>();
}
}
)*};
}
// Increase the chance of triggering the bug
emit!(m00 m01 m02 m03 m04 m05 m06 m07 m08 m09 m10 m11 m12 m13 m14 m15 m16 m17 m18 m19);