| // compile-flags: -Z identify_regions |
| |
| // Tests to make sure we correctly generate falseUnwind edges in loops |
| |
| fn main() { |
| // Exit early at runtime. Since only care about the generated MIR |
| // and not the runtime behavior (which is exercised by other tests) |
| // we just bail early. Without this the test just loops infinitely. |
| if true { |
| return; |
| } |
| loop { |
| let x = 1; |
| continue; |
| } |
| } |
| |
| // END RUST SOURCE |
| // START rustc.main.SimplifyCfg-qualify-consts.after.mir |
| // ... |
| // bb1: { // The cleanup block |
| // resume; |
| // } |
| // ... |
| // bb3: { // Entry into the loop |
| // _1 = (); |
| // goto -> bb4; |
| // } |
| // bb4: { // The loop_block |
| // falseUnwind -> [real: bb5, cleanup: bb1]; |
| // } |
| // bb5: { // The loop body (body_block) |
| // StorageLive(_5); |
| // _5 = const 1i32; |
| // FakeRead(ForLet, _5); |
| // StorageDead(_5); |
| // goto -> bb4; |
| // } |
| // ... |
| // END rustc.main.SimplifyCfg-qualify-consts.after.mir |
