mirror of https://github.com/rust-lang/rust
42 lines
1.2 KiB
Rust
42 lines
1.2 KiB
Rust
//@ test-mir-pass: EarlyOtherwiseBranch
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//@ compile-flags: -Zmir-enable-passes=+UnreachableEnumBranching
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// FIXME: This test was broken by the derefer change.
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// example from #68867
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type CSSFloat = f32;
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pub enum ViewportPercentageLength {
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Vw(CSSFloat),
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Vh(CSSFloat),
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Vmin(CSSFloat),
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Vmax(CSSFloat),
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}
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// EMIT_MIR early_otherwise_branch_68867.try_sum.EarlyOtherwiseBranch.diff
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#[no_mangle]
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pub extern "C" fn try_sum(
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x: &ViewportPercentageLength,
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other: &ViewportPercentageLength,
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) -> Result<ViewportPercentageLength, ()> {
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// CHECK-LABEL: fn try_sum(
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// CHECK: bb0: {
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// CHECK: [[LOCAL1:_.*]] = discriminant({{.*}});
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// CHECK-NOT: Ne
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// CHECK-NOT: discriminant
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// CHECK: switchInt(move [[LOCAL1]]) -> [
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// CHECK-NEXT: }
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use self::ViewportPercentageLength::*;
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Ok(match (x, other) {
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(&Vw(one), &Vw(other)) => Vw(one + other),
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(&Vh(one), &Vh(other)) => Vh(one + other),
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(&Vmin(one), &Vmin(other)) => Vmin(one + other),
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(&Vmax(one), &Vmax(other)) => Vmax(one + other),
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_ => return Err(()),
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})
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}
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fn main() {
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try_sum(&ViewportPercentageLength::Vw(1.0), &ViewportPercentageLength::Vw(2.0));
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}
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