diff --git a/llvm/lib/Target/ARM/ARMISelLowering.h b/llvm/lib/Target/ARM/ARMISelLowering.h
index 76e4b60..e0db4c4 100644
--- a/llvm/lib/Target/ARM/ARMISelLowering.h
+++ b/llvm/lib/Target/ARM/ARMISelLowering.h
@@ -184,6 +184,10 @@
       SMLALBT,      // 64-bit signed accumulate multiply bottom, top 16
       SMLALTB,      // 64-bit signed accumulate multiply top, bottom 16
       SMLALTT,      // 64-bit signed accumulate multiply top, top 16
+      SMLALD,       // Signed multiply accumulate long dual
+      SMLALDX,      // Signed multiply accumulate long dual exchange
+      SMLSLD,       // Signed multiply subtract long dual
+      SMLSLDX,      // Signed multiply subtract long dual exchange
 
       // Operands of the standard BUILD_VECTOR node are not legalized, which
       // is fine if BUILD_VECTORs are always lowered to shuffles or other