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|
// MIR for `foo` after PreCodegen
fn foo(_1: Option<String>) -> i32 {
debug s => _1;
let mut _0: i32;
let mut _2: bool;
let mut _3: isize;
let mut _4: &std::string::String;
let mut _5: &str;
let mut _6: bool;
let _7: std::option::Option<std::string::String>;
scope 1 {
debug s => _7;
}
bb0: {
_2 = const false;
_2 = const true;
_3 = discriminant(_1);
switchInt(move _3) -> [1: bb1, otherwise: bb5];
}
bb1: {
_4 = &((_1 as Some).0: std::string::String);
_5 = <String as Deref>::deref(move _4) -> [return: bb2, unwind unreachable];
}
bb2: {
_6 = <str as PartialEq>::eq(_5, const "a") -> [return: bb3, unwind unreachable];
}
bb3: {
switchInt(move _6) -> [0: bb5, otherwise: bb4];
}
bb4: {
_0 = const 1234_i32;
goto -> bb7;
}
bb5: {
StorageLive(_7);
_2 = const false;
_7 = move _1;
_0 = const 4321_i32;
drop(_7) -> [return: bb6, unwind unreachable];
}
bb6: {
StorageDead(_7);
goto -> bb7;
}
bb7: {
switchInt(_2) -> [0: bb9, otherwise: bb8];
}
bb8: {
drop(_1) -> [return: bb9, unwind unreachable];
}
bb9: {
return;
}
}
|
