diff --git a/tools/llc/llc.cpp b/tools/llc/llc.cpp
index d34a3ed745a..bb426a9de8c 100644
--- a/tools/llc/llc.cpp
+++ b/tools/llc/llc.cpp
@@ -278,6 +278,18 @@ int main(int argc, char **argv) {
 
   if (DisableDotLoc)
     Target.setMCUseLoc(false);
+  if (TheTriple.getOS() == Triple::Darwin) {
+    switch (TheTriple.getDarwinMajorNumber()) {
+    case 7:
+    case 8:
+    case 9:
+      // disable .loc support for older darwin OS.
+      Target.setMCUseLoc(false);
+      break;
+    default:
+      break;
+    }
+  }
 
   // Figure out where we are going to send the output...
   OwningPtr<tool_output_file> Out