Auto merge of #79377 - jonas-schievink:rollup-ye81i66, r=jonas-schievink

Rollup of 10 pull requests

Successful merges:

 - #76858 (Add exploit mitigations chapter to the rustc book)
 - #79310 (Make `fold_item_recur` non-nullable)
 - #79312 (Get rid of `doctree::Impl`)
 - #79321 (Accept '!' in intra-doc links)
 - #79346 (Allow using `-Z fewer-names=no` to retain value names)
 - #79351 (Fix typo in `keyword` docs for traits)
 - #79354 (BTreeMap: cut out the ceremony around BoxedNode)
 - #79358 (BTreeMap/BTreeSet: make public doc more consistent)
 - #79367 (Allow disabling TrapUnreachable via -Ztrap-unreachable=no)
 - #79374 (Add note to use nightly when using expr in const generics)

Failed merges:

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

1 files changed, 20 insertions, 0 deletions

diff --git a/src/test/codegen/fewer-names.rs b/src/test/codegen/fewer-names.rs
new file mode 100644
index 00000000000..53a926d49ef
--- /dev/null
+++ b/src/test/codegen/fewer-names.rs
@@ -0,0 +1,20 @@
+// no-system-llvm
+// compile-flags: -Coverflow-checks=no -O
+// revisions: YES NO
+// [YES]compile-flags: -Zfewer-names=yes
+// [NO] compile-flags: -Zfewer-names=no
+#![crate_type = "lib"]
+
+#[no_mangle]
+pub fn sum(x: u32, y: u32) -> u32 {
+// YES-LABEL: define i32 @sum(i32 %0, i32 %1)
+// YES-NEXT:    %3 = add i32 %1, %0
+// YES-NEXT:    ret i32 %3
+
+// NO-LABEL: define i32 @sum(i32 %x, i32 %y)
+// NO-NEXT:  start:
+// NO-NEXT:    %z = add i32 %y, %x
+// NO-NEXT:    ret i32 %z
+    let z = x + y;
+    z
+}