Auto merge of #81335 - thomwiggers:no-panic-shrink-to, r=Mark-Simulacrum

Trying to shrink_to greater than capacity should be no-op

Per the discussion in https://github.com/rust-lang/rust/issues/56431, `shrink_to` shouldn't panic if you try to make a vector shrink to a capacity greater than its current capacity.

1 files changed, 0 insertions, 8 deletions

diff --git a/src/test/codegen/vec-shrink-panic.rs b/src/test/codegen/vec-shrink-panic.rs
index cee4128c650..6b0ac78857a 100644
--- a/src/test/codegen/vec-shrink-panic.rs
+++ b/src/test/codegen/vec-shrink-panic.rs
@@ -26,11 +26,3 @@ pub fn issue75636<'a>(iter: &[&'a str]) -> Box<[&'a str]> {
     // CHECK-NOT: panic
     iter.iter().copied().collect()
 }
-
-// Sanity-check that we do see a possible panic for an arbitrary `Vec::shrink_to`.
-// CHECK-LABEL: @shrink_to
-#[no_mangle]
-pub fn shrink_to(vec: &mut Vec<u32>) {
-    // CHECK: panic
-    vec.shrink_to(42);
-}