mirror of https://github.com/rust-lang/rust
70 lines
1.5 KiB
Diff
70 lines
1.5 KiB
Diff
- // MIR for `main` before UnreachablePropagation
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+ // MIR for `main` after UnreachablePropagation
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fn main() -> () {
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let mut _0: ();
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let _1: bool;
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let mut _2: std::option::Option<Empty>;
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let mut _3: isize;
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let _5: ();
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let mut _6: bool;
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let mut _7: !;
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+ let mut _8: bool;
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scope 1 {
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debug x => _1;
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scope 2 {
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debug bomb => _4;
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let _4: Empty;
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}
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}
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bb0: {
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StorageLive(_1);
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_1 = const true;
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StorageLive(_2);
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_2 = empty() -> [return: bb1, unwind unreachable];
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}
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bb1: {
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_3 = discriminant(_2);
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switchInt(move _3) -> [1: bb2, otherwise: bb6];
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}
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bb2: {
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StorageLive(_4);
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_4 = move ((_2 as Some).0: Empty);
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StorageLive(_5);
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StorageLive(_6);
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_6 = _1;
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- switchInt(move _6) -> [0: bb4, otherwise: bb3];
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+ _8 = Ne(_6, const false);
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+ assume(move _8);
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+ goto -> bb3;
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}
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bb3: {
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_5 = loop_forever() -> [return: bb5, unwind unreachable];
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}
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bb4: {
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- _5 = const ();
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- goto -> bb5;
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+ unreachable;
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}
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bb5: {
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- StorageDead(_6);
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- StorageDead(_5);
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- StorageLive(_7);
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unreachable;
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}
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bb6: {
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_0 = const ();
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StorageDead(_1);
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StorageDead(_2);
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return;
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}
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}
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