diff options
Diffstat (limited to 'src/test/mir-opt/early_otherwise_branch_68867.rs')
-rw-r--r-- | src/test/mir-opt/early_otherwise_branch_68867.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/mir-opt/early_otherwise_branch_68867.rs b/src/test/mir-opt/early_otherwise_branch_68867.rs new file mode 100644 index 000000000..ca298e921 --- /dev/null +++ b/src/test/mir-opt/early_otherwise_branch_68867.rs @@ -0,0 +1,32 @@ +// compile-flags: -Z mir-opt-level=4 -Zunsound-mir-opts + +// example from #68867 +type CSSFloat = f32; + +pub enum ViewportPercentageLength { + Vw(CSSFloat), + Vh(CSSFloat), + Vmin(CSSFloat), + Vmax(CSSFloat), +} + +// EMIT_MIR early_otherwise_branch_68867.try_sum.EarlyOtherwiseBranch.diff +// EMIT_MIR early_otherwise_branch_68867.try_sum EarlyOtherwiseBranch.before SimplifyConstCondition-final.after +#[no_mangle] +pub extern "C" fn try_sum( + x: &ViewportPercentageLength, + other: &ViewportPercentageLength, +) -> Result<ViewportPercentageLength, ()> { + use self::ViewportPercentageLength::*; + Ok(match (x, other) { + (&Vw(one), &Vw(other)) => Vw(one + other), + (&Vh(one), &Vh(other)) => Vh(one + other), + (&Vmin(one), &Vmin(other)) => Vmin(one + other), + (&Vmax(one), &Vmax(other)) => Vmax(one + other), + _ => return Err(()), + }) +} + +fn main() { + try_sum(&ViewportPercentageLength::Vw(1.0), &ViewportPercentageLength::Vw(2.0)); +} |