Rollup merge of rust-lang#92121 - RalfJung:miri-core-test, r=kennytm

matthiaskrgr · web-flow · commit 94b9b5f35fe1 · 2021-12-23T17:48:30.000+01:00
disable test with self-referential generator on Miri Running the libcore test suite in Miri currently fails due to the known incompatibility of self-referential generators with Miri's aliasing checks (rust-lang/unsafe-code-guidelines#148). So let's disable that test in Miri for now.
diff --git a/library/core/tests/future.rs b/library/core/tests/future.rs
@@ -30,6 +30,7 @@ fn poll_n(val: usize, num: usize) -> PollN {
 }
 
 #[test]
+#[cfg_attr(miri, ignore)] // self-referential generators do not work with Miri's aliasing checks
 fn test_join() {
     block_on(async move {
         let x = join!(async { 0 }).await;

Original file line number	Diff line number	Diff line change
`@@ -30,6 +30,7 @@ fn poll_n(val: usize, num: usize) -> PollN {`
`30`	`30`	`}`
`31`	`31`
`32`	`32`	`#[test]`
	`33`	`+#[cfg_attr(miri, ignore)] // self-referential generators do not work with Miri's aliasing checks`
`33`	`34`	`fn test_join() {`
`34`	`35`	`block_on(async move {`
`35`	`36`	`let x = join!(async { 0 }).await;`