Auto merge of #136658 - matthiaskrgr:rollup-tg1vmex, r=matthiaskrgr

Rollup of 7 pull requests

Successful merges:

 - #133925 (disallow `repr()` on invalid items)
 - #136069 (Simplify slice indexing in next trait solver)
 - #136152 (Stabilize `map_many_mut` feature)
 - #136219 (Misc. `rustc_hir` cleanups 🧹)
 - #136580 (Couple of changes to run rustc in miri)
 - #136636 (Couple of minor cleanups to the diagnostic infrastructure)
 - #136645 (Clippy subtree update)

r? `@ghost`
`@rustbot` modify labels: rollup

1 files changed, 12 insertions, 0 deletions

diff --git a/compiler/rustc_data_structures/src/stack.rs b/compiler/rustc_data_structures/src/stack.rs
index 3d6d0003483..102b3640911 100644
--- a/compiler/rustc_data_structures/src/stack.rs
+++ b/compiler/rustc_data_structures/src/stack.rs
@@ -17,6 +17,18 @@ const STACK_PER_RECURSION: usize = 16 * 1024 * 1024; // 16MB
 ///
 /// Should not be sprinkled around carelessly, as it causes a little bit of overhead.
 #[inline]
+#[cfg(not(miri))]
 pub fn ensure_sufficient_stack<R>(f: impl FnOnce() -> R) -> R {
     stacker::maybe_grow(RED_ZONE, STACK_PER_RECURSION, f)
 }
+
+/// Grows the stack on demand to prevent stack overflow. Call this in strategic locations
+/// to "break up" recursive calls. E.g. almost any call to `visit_expr` or equivalent can benefit
+/// from this.
+///
+/// Should not be sprinkled around carelessly, as it causes a little bit of overhead.
+#[cfg(miri)]
+#[inline]
+pub fn ensure_sufficient_stack<R>(f: impl FnOnce() -> R) -> R {
+    f()
+}