| //@ compile-flags: -O -Zmerge-functions=disabled |
| //! Test for <https://github.com/rust-lang/rust/issues/108395>. Check that |
| //! matching on two bools with wildcards does not produce branches. |
| #![crate_type = "lib"] |
| |
| // CHECK-LABEL: @wildcard( |
| #[no_mangle] |
| pub fn wildcard(a: u16, b: u16, v: u16) -> u16 { |
| // CHECK-NOT: br |
| match (a == v, b == v) { |
| (true, false) => 0, |
| (false, true) => u16::MAX, |
| _ => 1 << 15, // half |
| } |
| } |
| |
| // CHECK-LABEL: @exhaustive( |
| #[no_mangle] |
| pub fn exhaustive(a: u16, b: u16, v: u16) -> u16 { |
| // CHECK-NOT: br |
| match (a == v, b == v) { |
| (true, false) => 0, |
| (false, true) => u16::MAX, |
| (true, true) => 1 << 15, |
| (false, false) => 1 << 15, |
| } |
| } |
