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- // MIR for `main` before ConstProp
+ // MIR for `main` after ConstProp
fn main() -> () {
let mut _0: ();
let _1: i32;
let mut _2: i32;
let mut _3: std::boxed::Box<i32>;
let mut _4: usize;
let mut _5: usize;
let mut _6: *mut u8;
let mut _7: std::boxed::Box<i32>;
let mut _8: *const i32;
let mut _9: *const i32;
scope 1 {
debug x => _1;
}
scope 2 {
}
bb0: {
StorageLive(_1);
StorageLive(_2);
StorageLive(_3);
- _4 = SizeOf(i32);
- _5 = AlignOf(i32);
+ _4 = const 4_usize;
+ _5 = const 4_usize;
_6 = alloc::alloc::exchange_malloc(move _4, move _5) -> [return: bb1, unwind continue];
}
bb1: {
StorageLive(_7);
_7 = ShallowInitBox(move _6, i32);
_8 = (((_7.0: std::ptr::Unique<i32>).0: std::ptr::NonNull<i32>).0: *const i32);
(*_8) = const 42_i32;
_3 = move _7;
StorageDead(_7);
_9 = (((_3.0: std::ptr::Unique<i32>).0: std::ptr::NonNull<i32>).0: *const i32);
_2 = (*_9);
_1 = Add(move _2, const 0_i32);
StorageDead(_2);
drop(_3) -> [return: bb2, unwind: bb3];
}
bb2: {
StorageDead(_3);
_0 = const ();
StorageDead(_1);
return;
}
bb3 (cleanup): {
resume;
}
}
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