| // skip-filecheck |
| // unit-test: EarlyOtherwiseBranch |
| // EMIT_MIR early_otherwise_branch.opt1.EarlyOtherwiseBranch.diff |
| fn opt1(x: Option<u32>, y: Option<u32>) -> u32 { |
| match (x, y) { |
| (Some(a), Some(b)) => 0, |
| _ => 1, |
| } |
| } |
| |
| // EMIT_MIR early_otherwise_branch.opt2.EarlyOtherwiseBranch.diff |
| fn opt2(x: Option<u32>, y: Option<u32>) -> u32 { |
| match (x, y) { |
| (Some(a), Some(b)) => 0, |
| (None, None) => 0, |
| _ => 1, |
| } |
| } |
| |
| // optimize despite different types |
| // EMIT_MIR early_otherwise_branch.opt3.EarlyOtherwiseBranch.diff |
| fn opt3(x: Option<u32>, y: Option<bool>) -> u32 { |
| match (x, y) { |
| (Some(a), Some(b)) => 0, |
| _ => 1, |
| } |
| } |
| |
| fn main() { |
| opt1(None, Some(0)); |
| opt2(None, Some(0)); |
| opt3(None, Some(false)); |
| } |