rust/tests/codegen/no-redundant-item-monomorphization.rs
2024-04-04 21:59:08 +01:00

34 lines
818 B
Rust

// Test to make sure that inner functions within a polymorphic outer function
// don't get re-codegened when the outer function is monomorphized. The test
// code monomorphizes the outer functions several times, but the magic constants
// used in the inner functions should each appear only once in the generated IR.
// issue: rust-lang/rust#7349
//@ compile-flags: -Cno-prepopulate-passes -Copt-level=0
// CHECK-COUNT-1: ret i32 8675309
// CHECK-COUNT-1: ret i32 11235813
fn outer<T>() {
#[allow(dead_code)]
fn inner() -> u32 {
8675309
}
inner();
}
extern "C" fn outer_foreign<T>() {
#[allow(dead_code)]
fn inner() -> u32 {
11235813
}
inner();
}
fn main() {
outer::<isize>();
outer::<usize>();
outer_foreign::<isize>();
outer_foreign::<usize>();
}