| //! This is a regression test for https://github.com/rust-lang/rust/issues/140686. |
| //! Although this is a ld64(ld-classic) bug, we still need to support it |
| //! due to cross-compilation and support for older Xcode. |
| |
| //@ compile-flags: -Copt-level=3 -Ccodegen-units=256 -Clink-arg=-ld_classic |
| //@ run-pass |
| //@ only-x86_64-apple-darwin |
| |
| fn main() { |
| let dst: Vec<u8> = Vec::new(); |
| let len = broken_func(std::hint::black_box(2), dst); |
| assert_eq!(len, 8); |
| } |
| |
| #[inline(never)] |
| pub fn broken_func(version: usize, mut dst: Vec<u8>) -> usize { |
| match version { |
| 1 => dst.extend_from_slice(b"aaaaaaaa"), |
| 2 => dst.extend_from_slice(b"bbbbbbbb"), |
| 3 => dst.extend_from_slice(b"bbbbbbbb"), |
| _ => panic!(), |
| } |
| dst.len() |
| } |
