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

// unit-test
// compile-flags: -O

static mut STATIC: u32 = 0x42424242;

// EMIT_MIR mutable_variable_no_prop.main.ConstProp.diff
fn main() {
    let mut x = 42;
    unsafe {
        x = STATIC;
    }
    let y = x;
}
make some const prop tests unit-test 2022-07-26 19:04:27 +02:00			`// unit-test`
Const prop aggregates even if partially or fully modified 2020-05-06 19:28:48 +02:00			`// compile-flags: -O`

Fix mir-opt tests for big-endian platforms The test cases src/test/mir-opt/building/custom/consts.rs and src/test/mir-opt/const_prop/mutable_variable_no_prop.rs are currently failing on big-endian platforms as the binary encoding of some constants is hard-coded in the MIR test files. Fix this by choosing constant values that have the same encoding on big- and little-endian platforms. The test case src/test/mir-opt/issues/issue_75439.rs is failing as well, but since the purpose of the test is to validate handling of big-endian integer encodings on a little-endian platform, it does not make much sense to run it on big-endian platforms in the first place - we can just ignore it there. Fixed part of https://github.com/rust-lang/rust/issues/105383. 2022-12-22 16:33:12 +01:00			`static mut STATIC: u32 = 0x42424242;`
Const prop aggregates even if partially or fully modified 2020-05-06 19:28:48 +02:00
add crate name to mir dumps 2020-07-27 21:22:43 +02:00			`// EMIT_MIR mutable_variable_no_prop.main.ConstProp.diff`
Const prop aggregates even if partially or fully modified 2020-05-06 19:28:48 +02:00			`fn main() {`
			`let mut x = 42;`
			`unsafe {`
			`x = STATIC;`
			`}`
			`let y = x;`
			`}`