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Add test for multiple terminator optimization

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This commit is contained in:
Antoine Martin 2020-10-01 10:08:09 +02:00
parent f0d407ed0f
commit 268f786d3c
2 changed files with 44 additions and 0 deletions
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14
src/test/mir-opt/multiple_return_terminators.rs Normal file
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@ -0,0 +1,14 @@
// compile-flags: -Z mir-opt-level=3
// EMIT_MIR multiple_return_terminators.test.MultipleReturnTerminators.diff
fn test(x: bool) {
if x {
// test
} else {
// test
}
}
fn main() {
test(true)
}

30
src/test/mir-opt/multiple_return_terminators.test.MultipleReturnTerminators.diff Normal file
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@ -0,0 +1,30 @@
- // MIR for `test` before MultipleReturnTerminators
+ // MIR for `test` after MultipleReturnTerminators
fn test(_1: bool) -> () {
debug x => _1; // in scope 0 at $DIR/multiple_return_terminators.rs:4:9: 4:10
let mut _0: (); // return place in scope 0 at $DIR/multiple_return_terminators.rs:4:18: 4:18
let mut _2: bool; // in scope 0 at $DIR/multiple_return_terminators.rs:5:8: 5:9
bb0: {
StorageLive(_2); // scope 0 at $DIR/multiple_return_terminators.rs:5:8: 5:9
_2 = _1; // scope 0 at $DIR/multiple_return_terminators.rs:5:8: 5:9
switchInt(_2) -> [false: bb1, otherwise: bb2]; // scope 0 at $DIR/multiple_return_terminators.rs:5:5: 9:6
}
bb1: {
_0 = const (); // scope 0 at $DIR/multiple_return_terminators.rs:7:12: 9:6
goto -> bb3; // scope 0 at $DIR/multiple_return_terminators.rs:5:5: 9:6
}
bb2: {
_0 = const (); // scope 0 at $DIR/multiple_return_terminators.rs:5:10: 7:6
goto -> bb3; // scope 0 at $DIR/multiple_return_terminators.rs:5:5: 9:6
}
bb3: {
StorageDead(_2); // scope 0 at $DIR/multiple_return_terminators.rs:10:1: 10:2
return; // scope 0 at $DIR/multiple_return_terminators.rs:10:2: 10:2
}
}