Index: lib/CodeGen/AsmPrinter/AsmPrinter.cpp
===================================================================
--- lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -186,7 +186,7 @@
   // use the directive, where it would need the same conditionalization
   // anyway.
   Triple TT(getTargetTriple());
-  if (TT.isOSDarwin()) {
+  if (TT.isOSDarwin() && MAI->useIntegratedAssembler()) {
     unsigned Major, Minor, Update;
     TT.getOSVersion(Major, Minor, Update);
     // If there is a version specified, Major will be non-zero.
Index: test/MC/MachO/no-integrated-as.ll
===================================================================
--- /dev/null
+++ test/MC/MachO/no-integrated-as.ll
@@ -0,0 +1,9 @@
+; RUN: llc -mtriple=x86_64-apple-darwin10.9 -no-integrated-as -o - %s > %t
+; RUN: FileCheck --check-prefix=CHECK-ASM < %t %s
+
+; CHECK-ASM-NOT: .macosx_version_min
+
+; RUN: llc -mtriple=x86_64-apple-darwin10.9 -no-integrated-as -filetype=obj -o - %s | macho-dump > %t
+; RUN: FileCheck --check-prefix=CHECK-OBJ < %t %s
+
+; CHECK-OBJ-NOT: (('command', 36)