diff --git a/clang/include/clang/Basic/TargetInfo.h b/clang/include/clang/Basic/TargetInfo.h
--- a/clang/include/clang/Basic/TargetInfo.h
+++ b/clang/include/clang/Basic/TargetInfo.h
@@ -758,9 +758,7 @@
   }
 
   /// Return the mangled code of bfloat.
-  virtual const char *getBFloat16Mangling() const {
-    llvm_unreachable("bfloat not implemented on this target");
-  }
+  virtual const char *getBFloat16Mangling() const { return "u6__bf16"; }
 
   /// Return the value for the C99 FLT_EVAL_METHOD macro.
   virtual LangOptions::FPEvalMethodKind getFPEvalMethod() const {
diff --git a/clang/lib/Basic/Targets/AArch64.h b/clang/lib/Basic/Targets/AArch64.h
--- a/clang/lib/Basic/Targets/AArch64.h
+++ b/clang/lib/Basic/Targets/AArch64.h
@@ -167,7 +167,6 @@
 
   int getEHDataRegisterNumber(unsigned RegNo) const override;
 
-  const char *getBFloat16Mangling() const override { return "u6__bf16"; };
   bool hasInt128Type() const override;
 
   bool hasBitIntType() const override { return true; }
diff --git a/clang/lib/Basic/Targets/AMDGPU.h b/clang/lib/Basic/Targets/AMDGPU.h
--- a/clang/lib/Basic/Targets/AMDGPU.h
+++ b/clang/lib/Basic/Targets/AMDGPU.h
@@ -116,7 +116,6 @@
   }
 
   bool hasBFloat16Type() const override { return isAMDGCN(getTriple()); }
-  const char *getBFloat16Mangling() const override { return "u6__bf16"; };
 
   const char *getClobbers() const override { return ""; }
 
diff --git a/clang/lib/Basic/Targets/ARM.h b/clang/lib/Basic/Targets/ARM.h
--- a/clang/lib/Basic/Targets/ARM.h
+++ b/clang/lib/Basic/Targets/ARM.h
@@ -197,8 +197,6 @@
   bool hasSjLjLowering() const override;
 
   bool hasBitIntType() const override { return true; }
-
-  const char *getBFloat16Mangling() const override { return "u6__bf16"; };
 };
 
 class LLVM_LIBRARY_VISIBILITY ARMleTargetInfo : public ARMTargetInfo {
diff --git a/clang/lib/Basic/Targets/NVPTX.h b/clang/lib/Basic/Targets/NVPTX.h
--- a/clang/lib/Basic/Targets/NVPTX.h
+++ b/clang/lib/Basic/Targets/NVPTX.h
@@ -179,7 +179,6 @@
 
   bool hasBitIntType() const override { return true; }
   bool hasBFloat16Type() const override { return true; }
-  const char *getBFloat16Mangling() const override { return "u6__bf16"; };
 };
 } // namespace targets
 } // namespace clang
diff --git a/clang/lib/Basic/Targets/X86.h b/clang/lib/Basic/Targets/X86.h
--- a/clang/lib/Basic/Targets/X86.h
+++ b/clang/lib/Basic/Targets/X86.h
@@ -415,8 +415,6 @@
   uint64_t getPointerAlignV(LangAS AddrSpace) const override {
     return getPointerWidthV(AddrSpace);
   }
-
-  const char *getBFloat16Mangling() const override { return "u6__bf16"; };
 };
 
 // X86-32 generic target