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// MIR for `foo` after PreCodegen
fn foo(_1: Option<String>) -> i32 {
debug s => _1; // in scope 0 at $DIR/string.rs:+0:12: +0:13
let mut _0: i32; // return place in scope 0 at $DIR/string.rs:+0:34: +0:37
let mut _2: &std::string::String; // in scope 0 at $DIR/string.rs:+2:14: +2:17
let mut _3: &str; // in scope 0 at $DIR/string.rs:+2:14: +2:17
let mut _4: bool; // in scope 0 at $DIR/string.rs:+2:14: +2:17
let mut _5: isize; // in scope 0 at $DIR/string.rs:+2:9: +2:18
let _6: std::option::Option<std::string::String>; // in scope 0 at $DIR/string.rs:+3:9: +3:10
let mut _7: bool; // in scope 0 at $DIR/string.rs:+5:1: +5:2
scope 1 {
debug s => _6; // in scope 1 at $DIR/string.rs:+3:9: +3:10
}
bb0: {
_7 = const false; // scope 0 at $DIR/string.rs:+1:11: +1:12
_7 = const true; // scope 0 at $DIR/string.rs:+1:11: +1:12
_5 = discriminant(_1); // scope 0 at $DIR/string.rs:+1:11: +1:12
switchInt(move _5) -> [1: bb2, otherwise: bb1]; // scope 0 at $DIR/string.rs:+1:5: +1:12
}
bb1: {
StorageLive(_6); // scope 0 at $DIR/string.rs:+3:9: +3:10
_7 = const false; // scope 0 at $DIR/string.rs:+3:9: +3:10
_6 = move _1; // scope 0 at $DIR/string.rs:+3:9: +3:10
_0 = const 4321_i32; // scope 1 at $DIR/string.rs:+3:14: +3:18
drop(_6) -> [return: bb6, unwind unreachable]; // scope 0 at $DIR/string.rs:+3:17: +3:18
}
bb2: {
_2 = &((_1 as Some).0: std::string::String); // scope 0 at $DIR/string.rs:+2:14: +2:17
_3 = <String as Deref>::deref(move _2) -> [return: bb3, unwind unreachable]; // scope 0 at $DIR/string.rs:+2:14: +2:17
// mir::Constant
// + span: $DIR/string.rs:9:14: 9:17
// + literal: Const { ty: for<'a> fn(&'a String) -> &'a <String as Deref>::Target {<String as Deref>::deref}, val: Value(<ZST>) }
}
bb3: {
_4 = <str as PartialEq>::eq(_3, const "a") -> [return: bb4, unwind unreachable]; // scope 0 at $DIR/string.rs:+2:14: +2:17
// mir::Constant
// + span: $DIR/string.rs:9:14: 9:17
// + literal: Const { ty: for<'a, 'b> fn(&'a str, &'b str) -> bool {<str as PartialEq>::eq}, val: Value(<ZST>) }
// mir::Constant
// + span: $DIR/string.rs:9:14: 9:17
// + literal: Const { ty: &str, val: Value(Slice(..)) }
}
bb4: {
switchInt(move _4) -> [0: bb1, otherwise: bb5]; // scope 0 at $DIR/string.rs:+2:14: +2:17
}
bb5: {
_0 = const 1234_i32; // scope 0 at $DIR/string.rs:+2:22: +2:26
goto -> bb9; // scope 0 at $DIR/string.rs:+2:22: +2:26
}
bb6: {
StorageDead(_6); // scope 0 at $DIR/string.rs:+3:17: +3:18
goto -> bb9; // scope 0 at $DIR/string.rs:+3:17: +3:18
}
bb7: {
return; // scope 0 at $DIR/string.rs:+5:2: +5:2
}
bb8: {
drop(_1) -> [return: bb7, unwind unreachable]; // scope 0 at $DIR/string.rs:+5:1: +5:2
}
bb9: {
switchInt(_7) -> [0: bb7, otherwise: bb8]; // scope 0 at $DIR/string.rs:+5:1: +5:2
}
}
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