rust/tests/mir-opt/lower_intrinsics_e2e.rs
2023-01-11 09:32:08 +00:00

33 lines
615 B
Rust

// Checks that we do not have any branches in the MIR for the two tested functions.
// compile-flags: -Cpanic=abort
#![feature(core_intrinsics)]
#![crate_type = "lib"]
// EMIT_MIR lower_intrinsics_e2e.f_unit.PreCodegen.after.mir
pub fn f_unit() {
f_dispatch(());
}
// EMIT_MIR lower_intrinsics_e2e.f_u64.PreCodegen.after.mir
pub fn f_u64() {
f_dispatch(0u64);
}
#[inline(always)]
pub fn f_dispatch<T>(t: T) {
if std::mem::size_of::<T>() == 0 {
f_zst(t);
} else {
f_non_zst(t);
}
}
#[inline(never)]
pub fn f_zst<T>(_t: T) {
}
#[inline(never)]
pub fn f_non_zst<T>(_t: T) {}