| // 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() | |
| } |