tests/codegen/vecdeque-nonempty-get-no-panic.rs

   1 // Guards against regression for optimization discussed in issue #80836
   2
   3 // compile-flags: -O
   4 // ignore-debug: the debug assertions get in the way
   5
   6 #![crate_type = "lib"]
   7
   8 use std::collections::VecDeque;
   9
  10 // CHECK-LABEL: @front
  11 // CHECK: ret void
  12 #[no_mangle]
  13 pub fn front(v: VecDeque<usize>) {
  14     if !v.is_empty() {
  15         v.get(0).unwrap();
  16     }
  17 }