47 lines
789 B
Rust
47 lines
789 B
Rust
// compile-flags: -O -Ccodegen-units=1
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#![crate_type = "lib"]
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#[repr(i64)]
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pub enum Boolean {
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False = 0,
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True = 1,
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}
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impl Clone for Boolean {
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fn clone(&self) -> Self {
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*self
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}
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}
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impl Copy for Boolean {}
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extern "C" {
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fn set_value(foo: *mut i64);
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fn bar();
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}
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pub fn foo(x: bool) {
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let mut foo = core::mem::MaybeUninit::<i64>::uninit();
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unsafe {
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set_value(foo.as_mut_ptr());
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}
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if x {
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let l1 = unsafe { *foo.as_mut_ptr().cast::<Boolean>() };
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if matches!(l1, Boolean::False) {
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unsafe {
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*foo.as_mut_ptr() = 0;
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}
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}
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}
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let l2 = unsafe { *foo.as_mut_ptr() };
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if l2 == 2 {
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// CHECK: call void @bar
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unsafe {
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bar();
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}
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}
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}
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