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-rw-r--r--src/librustc_codegen_llvm/llvm_util.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/librustc_codegen_llvm/llvm_util.rs b/src/librustc_codegen_llvm/llvm_util.rs
index 357b639e788..87ee9ef5adb 100644
--- a/src/librustc_codegen_llvm/llvm_util.rs
+++ b/src/librustc_codegen_llvm/llvm_util.rs
@@ -84,6 +84,7 @@ unsafe fn configure_llvm(sess: &Session) {
 // array, leading to crashes.
 
 const ARM_WHITELIST: &[(&str, Option<&str>)] = &[
+    ("mclass", Some("arm_target_feature")),
     ("neon", Some("arm_target_feature")),
     ("v7", Some("arm_target_feature")),
     ("vfp2", Some("arm_target_feature")),