| // compile-flags: -O | |
| // only-x86_64 | |
| // ignore-debug: the debug assertions get in the way | |
| #![crate_type = "lib"] | |
| use std::mem::swap; | |
| type RGB48 = [u16; 3]; | |
| // CHECK-LABEL: @swap_rgb48 | |
| #[no_mangle] | |
| pub fn swap_rgb48(x: &mut RGB48, y: &mut RGB48) { | |
| // CHECK-NOT: alloca | |
| // CHECK: load i48 | |
| // CHECK: store i48 | |
| swap(x, y) | |
| } |