rust/tests/codegen/issue-97217.rs

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

22 lines
538 B
Rust
Raw Normal View History

//@ compile-flags: -C opt-level=3
//@ min-llvm-version: 17.0.2
#![crate_type = "lib"]
// Regression test for issue 97217 (the following should result in no allocations)
// CHECK-LABEL: @issue97217
#[no_mangle]
pub fn issue97217() -> i32 {
// drop_in_place should be inlined and never appear
// CHECK-NOT: drop_in_place
// __rust_alloc should be optimized out
// CHECK-NOT: __rust_alloc
let v1 = vec![5, 6, 7];
let v1_iter = v1.iter();
let total: i32 = v1_iter.sum();
println!("{}", total);
total
}