rust/tests/mir-opt/const_prop/cast.rs

// unit-test: ConstProp
// EMIT_MIR cast.main.ConstProp.diff

fn main() {
    let x = 42u8 as u32;

    let y = 42u32 as u8;
}
make some const prop tests unit-test 2022-07-26 19:04:27 +02:00			`// unit-test: ConstProp`
add crate name to mir dumps 2020-07-27 21:22:43 +02:00			`// EMIT_MIR cast.main.ConstProp.diff`
Enable `--bless`ing of MIR dumps 2020-03-11 11:49:00 +01:00
Lint overflowing integer casts in const prop This extends the invalid cases we catch in const prop to include overflowing integer casts using the same machinery as the overflowing binary and unary operation logic. 2019-12-12 22:03:32 -05:00			`fn main() {`
			`let x = 42u8 as u32;`

			`let y = 42u32 as u8;`
			`}`