2 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_llvm/src/context.rs b/compiler/rustc_codegen_llvm/src/context.rs
index d4d84147239..67ffc7cb951 100644
--- a/compiler/rustc_codegen_llvm/src/context.rs
+++ b/compiler/rustc_codegen_llvm/src/context.rs
@@ -886,6 +886,9 @@ impl<'ll> CodegenCx<'ll, '_> {
             ifn!("llvm.dbg.declare", fn(t_metadata, t_metadata) -> void);
             ifn!("llvm.dbg.value", fn(t_metadata, t_i64, t_metadata) -> void);
         }
+
+        ifn!("llvm.ptrmask", fn(i8p, t_isize) -> i8p);
+
         None
     }
 
diff --git a/compiler/rustc_codegen_llvm/src/intrinsic.rs b/compiler/rustc_codegen_llvm/src/intrinsic.rs
index f4227fbd8fa..3d789904707 100644
--- a/compiler/rustc_codegen_llvm/src/intrinsic.rs
+++ b/compiler/rustc_codegen_llvm/src/intrinsic.rs
@@ -71,6 +71,7 @@ fn get_simple_intrinsic<'ll>(
         sym::nearbyintf64 => "llvm.nearbyint.f64",
         sym::roundf32 => "llvm.round.f32",
         sym::roundf64 => "llvm.round.f64",
+        sym::ptr_mask => "llvm.ptrmask",
         _ => return None,
     };
     Some(cx.get_intrinsic(llvm_name))