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| author | Simon Vandel Sillesen <simon.vandel@gmail.com> | 2020-09-17 18:27:49 +0200 |
|---|---|---|
| committer | Simon Vandel Sillesen <simon.vandel@gmail.com> | 2020-09-19 15:29:09 +0200 |
| commit | cad050b002ff36c65b68833fcd90824eceee1993 (patch) | |
| tree | fd856d0ed2262362912b23ed3ec8495a60a26fa0 /src/test/mir-opt/76803_regression.encode.SimplifyBranchSame.diff | |
| parent | fd702d2919fe23eeaf59574040d0b29853d44289 (diff) | |
| download | rust-cad050b002ff36c65b68833fcd90824eceee1993.tar.gz rust-cad050b002ff36c65b68833fcd90824eceee1993.zip | |
Add regression test showcasing miscompilation
Diffstat (limited to 'src/test/mir-opt/76803_regression.encode.SimplifyBranchSame.diff')
| -rw-r--r-- | src/test/mir-opt/76803_regression.encode.SimplifyBranchSame.diff | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/test/mir-opt/76803_regression.encode.SimplifyBranchSame.diff b/src/test/mir-opt/76803_regression.encode.SimplifyBranchSame.diff new file mode 100644 index 00000000000..63139285209 --- /dev/null +++ b/src/test/mir-opt/76803_regression.encode.SimplifyBranchSame.diff @@ -0,0 +1,30 @@ +- // MIR for `encode` before SimplifyBranchSame ++ // MIR for `encode` after SimplifyBranchSame + + fn encode(_1: Type) -> Type { + debug v => _1; // in scope 0 at $DIR/76803_regression.rs:10:15: 10:16 + let mut _0: Type; // return place in scope 0 at $DIR/76803_regression.rs:10:27: 10:31 + let mut _2: isize; // in scope 0 at $DIR/76803_regression.rs:12:9: 12:16 + + bb0: { + _2 = discriminant(_1); // scope 0 at $DIR/76803_regression.rs:12:9: 12:16 +- switchInt(move _2) -> [0_isize: bb2, otherwise: bb1]; // scope 0 at $DIR/76803_regression.rs:12:9: 12:16 ++ goto -> bb1; // scope 0 at $DIR/76803_regression.rs:12:9: 12:16 + } + + bb1: { + _0 = move _1; // scope 0 at $DIR/76803_regression.rs:13:14: 13:15 +- goto -> bb3; // scope 0 at $DIR/76803_regression.rs:11:5: 14:6 ++ goto -> bb2; // scope 0 at $DIR/76803_regression.rs:11:5: 14:6 + } + + bb2: { +- discriminant(_0) = 1; // scope 0 at $DIR/76803_regression.rs:12:20: 12:27 +- goto -> bb3; // scope 0 at $DIR/76803_regression.rs:11:5: 14:6 +- } +- +- bb3: { + return; // scope 0 at $DIR/76803_regression.rs:15:2: 15:2 + } + } + |