rust/tests/mir-opt/unreachable.main.UnreachablePropagation.panic-abort.diff

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- // MIR for `main` before UnreachablePropagation
+ // MIR for `main` after UnreachablePropagation
fn main() -> () {
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let mut _0: ();
let mut _1: std::option::Option<Empty>;
let mut _2: isize;
let _5: ();
let mut _6: bool;
let mut _7: !;
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scope 1 {
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debug _x => _3;
let _3: Empty;
let mut _4: i32;
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scope 2 {
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debug _y => _4;
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}
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}
bb0: {
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StorageLive(_1);
_1 = empty() -> [return: bb1, unwind unreachable];
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}
bb1: {
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_2 = discriminant(_1);
- switchInt(move _2) -> [1: bb2, otherwise: bb6];
+ switchInt(move _2) -> [1: bb2, otherwise: bb3];
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}
bb2: {
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- StorageLive(_3);
- _3 = move ((_1 as Some).0: Empty);
- StorageLive(_4);
- StorageLive(_5);
- StorageLive(_6);
- _6 = const true;
- switchInt(move _6) -> [0: bb4, otherwise: bb3];
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- }
-
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- bb3: {
- _4 = const 21_i32;
- _5 = const ();
- goto -> bb5;
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- }
-
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- bb4: {
- _4 = const 42_i32;
- _5 = const ();
- goto -> bb5;
- }
-
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- bb5: {
- StorageDead(_6);
- StorageDead(_5);
- StorageLive(_7);
unreachable;
}
- bb6: {
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+ bb3: {
_0 = const ();
StorageDead(_1);
return;
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}
}