diff --git a/llvm/lib/Object/MachOObjectFile.cpp b/llvm/lib/Object/MachOObjectFile.cpp
index ae1ac09..c0a7518 100644
--- a/llvm/lib/Object/MachOObjectFile.cpp
+++ b/llvm/lib/Object/MachOObjectFile.cpp
@@ -2454,6 +2454,8 @@
         *ArchFlag = "armv7em";
       return Triple("thumbv7em-apple-darwin");
     case MachO::CPU_SUBTYPE_ARM_V7K:
+      if (McpuDefault)
+        *McpuDefault = "cortex-a7";
       if (ArchFlag)
         *ArchFlag = "armv7k";
       return Triple("armv7k-apple-darwin");
@@ -2464,6 +2466,8 @@
         *ArchFlag = "armv7m";
       return Triple("thumbv7m-apple-darwin");
     case MachO::CPU_SUBTYPE_ARM_V7S:
+      if (McpuDefault)
+        *McpuDefault = "cortex-a7";
       if (ArchFlag)
         *ArchFlag = "armv7s";
       return Triple("armv7s-apple-darwin");