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-rw-r--r--compiler/rustc_codegen_llvm/src/llvm_util.rs1
-rw-r--r--compiler/rustc_target/src/target_features.rs2
2 files changed, 3 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs
index 57936215ff1..aa38c02289d 100644
--- a/compiler/rustc_codegen_llvm/src/llvm_util.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs
@@ -248,6 +248,7 @@ pub(crate) fn to_llvm_features<'a>(sess: &Session, s: &'a str) -> Option<LLVMFea
         ("aarch64", "pmuv3") => Some(LLVMFeature::new("perfmon")),
         ("aarch64", "paca") => Some(LLVMFeature::new("pauth")),
         ("aarch64", "pacg") => Some(LLVMFeature::new("pauth")),
+        ("aarch64", "pauth-lr") if get_version().0 < 19 => None,
         // Before LLVM 20 those two features were packaged together as b16b16
         ("aarch64", "sve-b16b16") if get_version().0 < 20 => Some(LLVMFeature::new("b16b16")),
         ("aarch64", "sme-b16b16") if get_version().0 < 20 => Some(LLVMFeature::new("b16b16")),
diff --git a/compiler/rustc_target/src/target_features.rs b/compiler/rustc_target/src/target_features.rs
index e92366d5c5c..88de6f8998e 100644
--- a/compiler/rustc_target/src/target_features.rs
+++ b/compiler/rustc_target/src/target_features.rs
@@ -167,6 +167,8 @@ const AARCH64_ALLOWED_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[
     ("pacg", Stable, &[]),
     // FEAT_PAN
     ("pan", Stable, &[]),
+    // FEAT_PAuth_LR
+    ("pauth-lr", Unstable(sym::aarch64_unstable_target_feature), &[]),
     // FEAT_PMUv3
     ("pmuv3", Stable, &[]),
     // FEAT_RNG