rustc/tests/codegen/vec-optimizes-away.rs
2024-05-08 17:27:53 +02:00

14 lines
371 B
Rust

// ignore-debug: the debug assertions get in the way
// no-system-llvm
// compile-flags: -O
#![crate_type = "lib"]
#[no_mangle]
pub fn sum_me() -> i32 {
// CHECK-LABEL: @sum_me
// CHECK-NEXT: {{^.*:$}}
// CHECK-NEXT: {{.*}} load volatile i8, ptr @__rust_no_alloc_shim_is_unstable, align 1
// CHECK-NEXT: ret i32 6
vec![1, 2, 3].iter().sum::<i32>()
}