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Add codegen test to be sure we get rid of uneeded clones after monomorphization

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Santiago Pastorino 2025-03-28 16:33:45 -03:00
parent a0856eaff6
commit 20f93c9e8e
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1 changed files with 55 additions and 0 deletions
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tests/codegen/ergonomic-clones/closure.rs Normal file
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//@ compile-flags: -C no-prepopulate-passes -Copt-level=0 -Zmir-opt-level=0
#![crate_type = "lib"]
#![feature(ergonomic_clones)]
#![allow(incomplete_features)]
use std::clone::UseCloned;
pub fn ergonomic_clone_closure_move() -> String {
let s = String::from("hi");
// CHECK-NOT: ; call core::clone::impls::<impl core::clone::Clone for String>::clone
let cl = use || s;
cl()
}
#[derive(Clone)]
struct Foo;
impl UseCloned for Foo {}
pub fn ergonomic_clone_closure_use_cloned() -> Foo {
let f = Foo;
// CHECK: ; call <closure::Foo as core::clone::Clone>::clone
let f1 = use || f;
// CHECK: ; call <closure::Foo as core::clone::Clone>::clone
let f2 = use || f;
f
}
pub fn ergonomic_clone_closure_copy() -> i32 {
let i = 1;
// CHECK-NOT: ; call core::clone::impls::<impl core::clone::Clone for i32>::clone
let i1 = use || i;
// CHECK-NOT: ; call core::clone::impls::<impl core::clone::Clone for i32>::clone
let i2 = use || i;
i
}
pub fn ergonomic_clone_closure_use_cloned_generics<T: UseCloned>(f: T) -> T {
// CHECK-NOT: ; call core::clone::impls::<impl core::clone::Clone for i32>::clone
let f1 = use || f;
// CHECK-NOT: ; call core::clone::impls::<impl core::clone::Clone for i32>::clone
let f2 = use || f;
f
}