rust/tests/ui/issues/issue-22008.rs

//@ run-pass
pub fn main() {
    let command = "a";

    match command {
        "foo" => println!("foo"),
        _     => println!("{}", command),
    }
}
[AUTO-GENERATED] Migrate ui tests from `//` to `//@` directives 2024-02-16 20:02:50 +00:00			`//@ run-pass`
Fix misoptimizations when matching against strings/slices When matching against strings/slices, we call the comparison function for strings, which takes two string slices by value. The slices are passed in memory, and currently we just pass in a pointer to the original slice. That can cause misoptimizations because we emit a call to llvm.lifetime.end for all by-value arguments at the end of a function, which in this case marks the original slice as dead. So we need to properly create copies of the slices to pass them to the comparison function. Fixes #22008 2015-02-15 23:23:19 +01:00			`pub fn main() {`
			`let command = "a";`

			`match command {`
			`"foo" => println!("foo"),`
			`_ => println!("{}", command),`
			`}`
			`}`