| // Copyright 2017 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // compile-flags: -O |
| // ignore-x86 |
| // ignore-arm |
| // ignore-emscripten |
| // ignore-gnux32 |
| // ignore 32-bit platforms (LLVM has a bug with them) |
| |
| // See issue #37945. |
| |
| #![crate_type = "lib"] |
| |
| use std::slice::Iter; |
| |
| // CHECK-LABEL: @is_empty_1 |
| #[no_mangle] |
| pub fn is_empty_1(xs: Iter<f32>) -> bool { |
| // CHECK-NOT: icmp eq float* {{.*}}, null |
| {xs}.next().is_none() |
| } |
| |
| // CHECK-LABEL: @is_empty_2 |
| #[no_mangle] |
| pub fn is_empty_2(xs: Iter<f32>) -> bool { |
| // CHECK-NOT: icmp eq float* {{.*}}, null |
| xs.map(|&x| x).next().is_none() |
| } |
