rust/tests/mir-opt/pre-codegen/simple_option_map.ezmap.PreCodegen.after.mir
2023-10-04 17:55:15 +00:00

49 lines
1.1 KiB
Rust

// MIR for `ezmap` after PreCodegen
fn ezmap(_1: Option<i32>) -> Option<i32> {
debug x => _1;
let mut _0: std::option::Option<i32>;
scope 1 (inlined map::<i32, i32, {closure@$DIR/simple_option_map.rs:17:12: 17:15}>) {
debug slf => _1;
debug f => const ZeroSized: {closure@$DIR/simple_option_map.rs:17:12: 17:15};
let mut _2: isize;
let _3: i32;
let mut _4: i32;
scope 2 {
debug x => _3;
scope 3 (inlined ezmap::{closure#0}) {
debug n => _3;
}
}
}
bb0: {
StorageLive(_2);
_2 = discriminant(_1);
switchInt(move _2) -> [0: bb1, 1: bb2, otherwise: bb4];
}
bb1: {
_0 = Option::<i32>::None;
goto -> bb3;
}
bb2: {
_3 = ((_1 as Some).0: i32);
StorageLive(_4);
_4 = Add(_3, const 1_i32);
_0 = Option::<i32>::Some(move _4);
StorageDead(_4);
goto -> bb3;
}
bb3: {
StorageDead(_2);
return;
}
bb4: {
unreachable;
}
}