rust/tests/mir-opt/array_index_is_temporary.ma...

60 lines
1.4 KiB
Rust

// MIR for `main` after SimplifyCfg-pre-optimizations
fn main() -> () {
let mut _0: ();
let mut _1: [u32; 3];
let mut _4: &mut usize;
let mut _5: u32;
let mut _6: *mut usize;
let _7: usize;
let mut _8: usize;
let mut _9: bool;
scope 1 {
debug x => _1;
let mut _2: usize;
scope 2 {
debug y => _2;
let _3: *mut usize;
scope 3 {
debug z => _3;
}
}
}
bb0: {
StorageLive(_1);
_1 = [const 42_u32, const 43_u32, const 44_u32];
StorageLive(_2);
_2 = const 1_usize;
StorageLive(_3);
StorageLive(_4);
_4 = &mut _2;
_3 = &raw mut (*_4);
StorageDead(_4);
StorageLive(_5);
StorageLive(_6);
_6 = copy _3;
_5 = foo(move _6) -> [return: bb1, unwind unreachable];
}
bb1: {
StorageDead(_6);
StorageLive(_7);
_7 = copy _2;
_8 = Len(_1);
_9 = Lt(copy _7, copy _8);
assert(move _9, "index out of bounds: the length is {} but the index is {}", move _8, copy _7) -> [success: bb2, unwind unreachable];
}
bb2: {
_1[_7] = move _5;
StorageDead(_5);
StorageDead(_7);
_0 = const ();
StorageDead(_3);
StorageDead(_2);
StorageDead(_1);
return;
}
}