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//@ test-mir-pass: EarlyOtherwiseBranch
//@ compile-flags: -Zmir-enable-passes=+UnreachableEnumBranching
// must not optimize as it does not follow the pattern of
// left and right hand side being the same variant
// EMIT_MIR early_otherwise_branch_noopt.noopt1.EarlyOtherwiseBranch.diff
fn noopt1(x: Option<u32>, y: Option<u32>) -> u32 {
// CHECK-LABEL: fn noopt1(
// CHECK: bb0: {
// CHECK: [[LOCAL1:_.*]] = discriminant({{.*}});
// CHECK-NOT: Ne
// CHECK-NOT: discriminant
// CHECK: switchInt(move [[LOCAL1]]) -> [
// CHECK-NEXT: }
match (x, y) {
(Some(a), Some(b)) => 0,
(Some(a), None) => 1,
(None, Some(b)) => 2,
(None, None) => 3,
}
}
fn main() {
noopt1(None, Some(0));
}
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