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authorLaurențiu Nicola <lnicola@users.noreply.github.com>2025-07-15 14:52:23 +0000
committerGitHub <noreply@github.com>2025-07-15 14:52:23 +0000
commit0393e061e74672661d7f816103df66b47b1dc312 (patch)
treeb3d42464413144da825bfc98a7375319f12d4dc5 /compiler/rustc_codegen_llvm/src/llvm_util.rs
parent4faef6f9040c788d564449a2b9431f351bc0f403 (diff)
parent28f822f100c3714b37be9566b6dac376c72d2758 (diff)
downloadrust-0393e061e74672661d7f816103df66b47b1dc312.tar.gz
rust-0393e061e74672661d7f816103df66b47b1dc312.zip
Merge pull request #20243 from lnicola/sync-from-rust
minor: Sync from downstream
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/llvm_util.rs')
-rw-r--r--compiler/rustc_codegen_llvm/src/llvm_util.rs8
1 files changed, 8 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs
index 6fd07d562af..0fb987bdf82 100644
--- a/compiler/rustc_codegen_llvm/src/llvm_util.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs
@@ -370,10 +370,18 @@ fn update_target_reliable_float_cfg(sess: &Session, cfg: &mut TargetConfig) {
     let target_env = sess.target.options.env.as_ref();
     let target_abi = sess.target.options.abi.as_ref();
     let target_pointer_width = sess.target.pointer_width;
+    let version = get_version();
 
     cfg.has_reliable_f16 = match (target_arch, target_os) {
         // Selection failure <https://github.com/llvm/llvm-project/issues/50374>
         ("s390x", _) => false,
+        // LLVM crash without neon <https://github.com/llvm/llvm-project/issues/129394> (now fixed)
+        ("aarch64", _)
+            if !cfg.target_features.iter().any(|f| f.as_str() == "neon")
+                && version < (20, 1, 1) =>
+        {
+            false
+        }
         // Unsupported <https://github.com/llvm/llvm-project/issues/94434>
         ("arm64ec", _) => false,
         // MinGW ABI bugs <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115054>