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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/mir-opt/matches_reduce_branches.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/mir-opt/matches_reduce_branches.rs')
-rw-r--r-- | src/test/mir-opt/matches_reduce_branches.rs | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/test/mir-opt/matches_reduce_branches.rs b/src/test/mir-opt/matches_reduce_branches.rs new file mode 100644 index 000000000..51be3884d --- /dev/null +++ b/src/test/mir-opt/matches_reduce_branches.rs @@ -0,0 +1,59 @@ +// EMIT_MIR_FOR_EACH_BIT_WIDTH +// EMIT_MIR matches_reduce_branches.foo.MatchBranchSimplification.diff +// EMIT_MIR matches_reduce_branches.foo.PreCodegen.before.mir +// EMIT_MIR matches_reduce_branches.bar.MatchBranchSimplification.diff +// EMIT_MIR matches_reduce_branches.match_nested_if.MatchBranchSimplification.diff + +fn foo(bar: Option<()>) { + if matches!(bar, None) { + () + } +} + +fn bar(i: i32) -> (bool, bool, bool, bool) { + let a; + let b; + let c; + let d; + + match i { + 7 => { + a = false; + b = true; + c = false; + d = true; + () + } + _ => { + a = true; + b = false; + c = false; + d = true; + () + } + }; + + (a, b, c, d) +} + +fn match_nested_if() -> bool { + let val = match () { + () if if if if true { true } else { false } { true } else { false } { + true + } else { + false + } => + { + true + } + _ => false, + }; + val +} + +fn main() { + let _ = foo(None); + let _ = foo(Some(())); + let _ = bar(0); + let _ = match_nested_if(); +} |