| //@ compile-flags: -O | |
| //@ only-64bit | |
| // | |
| // This test confirms that we do not reload the length of a Vec after growing it in push. | |
| #![crate_type = "lib"] | |
| // CHECK-LABEL: @should_load_once | |
| #[no_mangle] | |
| pub fn should_load_once(v: &mut Vec<u8>) { | |
| // CHECK: load i64 | |
| // CHECK: call {{.*}}grow_one | |
| // CHECK-NOT: load i64 | |
| // CHECK: add {{.*}}, 1 | |
| v.push(1); | |
| } |