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Diffstat (limited to 'src/test/mir-opt/issue_41697.rs')
-rw-r--r-- | src/test/mir-opt/issue_41697.rs | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/src/test/mir-opt/issue_41697.rs b/src/test/mir-opt/issue_41697.rs deleted file mode 100644 index cbd8633a3..000000000 --- a/src/test/mir-opt/issue_41697.rs +++ /dev/null @@ -1,40 +0,0 @@ -// Regression test for #41697. Using dump-mir was triggering -// artificial cycles: during type-checking, we had to get the MIR for -// the constant expressions in `[u8; 2]`, which in turn would trigger -// an attempt to get the def-path, which in turn would request the -// types of the impl, which would trigger a cycle. We suppressed this -// cycle now by forcing mir-dump to avoid asking for types of an impl. - -#![feature(rustc_attrs)] - -use std::sync::Arc; - -trait Foo { - fn get(&self) -> [u8; 2]; -} - - -// EMIT_MIR issue_41697.{impl#0}-{constant#0}.SimplifyCfg-promote-consts.after.mir -impl Foo for [u8; 1+1] { - fn get(&self) -> [u8; 2] { - *self - } -} - -struct Bar<T: ?Sized>(T); - -fn unsize_fat_ptr<'a>(x: &'a Bar<Foo + Send + 'a>) -> &'a Bar<Foo + 'a> { - x -} - -fn unsize_nested_fat_ptr(x: Arc<Foo + Send>) -> Arc<Foo> { - x -} - -fn main() { - let x: Box<Bar<Foo + Send>> = Box::new(Bar([1,2])); - assert_eq!(unsize_fat_ptr(&*x).0.get(), [1, 2]); - - let x: Arc<Foo + Send> = Arc::new([3, 4]); - assert_eq!(unsize_nested_fat_ptr(x).get(), [3, 4]); -} |