rust/tests/codegen/vec-as-ptr.rs
2023-02-19 14:30:21 -05:00

20 lines
568 B
Rust

// compile-flags: -O -Zmerge-functions=disabled
#![crate_type = "lib"]
// Test that even though we return a *const u8 not a &[u8] or a NonNull<u8>, LLVM knows that this
// pointer is nonnull.
// CHECK: nonnull {{i8\*|ptr}} @vec_as_ptr
#[no_mangle]
pub fn vec_as_ptr(v: &Vec<u8>) -> *const u8 {
v.as_ptr()
}
// Test that even though we return a *const u8 not a &[u8] or a NonNull<u8>, LLVM knows that this
// pointer is nonnull.
// CHECK: nonnull {{i8\*|ptr}} @vec_as_mut_ptr
#[no_mangle]
pub fn vec_as_mut_ptr(v: &mut Vec<u8>) -> *mut u8 {
v.as_mut_ptr()
}