rust/tests/mir-opt/const_prop/pointer_expose_address.rs
2023-12-24 20:08:57 +00:00

18 lines
454 B
Rust

// EMIT_MIR_FOR_EACH_PANIC_STRATEGY
// unit-test: GVN
#[inline(never)]
fn read(_: usize) { }
// EMIT_MIR pointer_expose_address.main.GVN.diff
fn main() {
// CHECK-LABEL: fn main(
// CHECK: [[ptr:_.*]] = const _;
// CHECK: [[ref:_.*]] = &raw const (*[[ptr]]);
// CHECK: [[x:_.*]] = move [[ref]] as usize (PointerExposeAddress);
// CHECK: = read([[x]])
const FOO: &i32 = &1;
let x = FOO as *const i32 as usize;
read(x);
}