diff options
Diffstat (limited to 'tests/ui/mir/mir_alignment_check.rs')
-rw-r--r-- | tests/ui/mir/mir_alignment_check.rs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tests/ui/mir/mir_alignment_check.rs b/tests/ui/mir/mir_alignment_check.rs new file mode 100644 index 000000000..68a5384b3 --- /dev/null +++ b/tests/ui/mir/mir_alignment_check.rs @@ -0,0 +1,12 @@ +// run-fail +// ignore-wasm32-bare: No panic messages +// compile-flags: -C debug-assertions +// error-pattern: misaligned pointer dereference: address must be a multiple of 0x4 but is + +fn main() { + let mut x = [0u32; 2]; + let ptr: *mut u8 = x.as_mut_ptr().cast::<u8>(); + unsafe { + *(ptr.add(1).cast::<u32>()) = 42; + } +} |