Auto merge of #136851 - jhpratt:rollup-ftijn95, r=jhpratt

Rollup of 11 pull requests

Successful merges:

 - #136606 (Fix long lines which rustfmt fails to format)
 - #136663 (Stabilize `NonZero::count_ones`)
 - #136672 (library: doc: core::alloc::Allocator: trivial typo fix)
 - #136704 (Improve examples for file locking)
 - #136721 (cg_llvm: Reduce visibility of some items outside the `llvm` module)
 - #136813 (rustc_target: Add the fp16 target feature for AArch32)
 - #136830 (fix i686-unknown-hurd-gnu x87 footnote)
 - #136832 (Fix platform support table for i686-unknown-uefi)
 - #136835 (Stop using span hack for contracts feature gating)
 - #136837 (Overhaul how contracts are lowered on fn-like bodies)
 - #136839 (fix ensure_monomorphic_enough)

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

1 files changed, 2 insertions, 1 deletions

diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs
index 53611c746a7..b4b5d6a5b19 100644
--- a/compiler/rustc_codegen_llvm/src/llvm_util.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs
@@ -271,6 +271,7 @@ pub(crate) fn to_llvm_features<'a>(sess: &Session, s: &'a str) -> Option<LLVMFea
         ("aarch64", "fp16") => Some(LLVMFeature::new("fullfp16")),
         // Filter out features that are not supported by the current LLVM version
         ("aarch64", "fpmr") if get_version().0 != 18 => None,
+        ("arm", "fp16") => Some(LLVMFeature::new("fullfp16")),
         // In LLVM 18, `unaligned-scalar-mem` was merged with `unaligned-vector-mem` into a single
         // feature called `fast-unaligned-access`. In LLVM 19, it was split back out.
         ("riscv32" | "riscv64", "unaligned-scalar-mem") if get_version().0 == 18 => {
@@ -303,7 +304,7 @@ pub(crate) fn to_llvm_features<'a>(sess: &Session, s: &'a str) -> Option<LLVMFea
 /// Must express features in the way Rust understands them.
 ///
 /// We do not have to worry about RUSTC_SPECIFIC_FEATURES here, those are handled outside codegen.
-pub fn target_features_cfg(sess: &Session, allow_unstable: bool) -> Vec<Symbol> {
+pub(crate) fn target_features_cfg(sess: &Session, allow_unstable: bool) -> Vec<Symbol> {
     let mut features: FxHashSet<Symbol> = Default::default();
 
     // Add base features for the target.