Re-enable inline memcpy expansion for Thumb1.

Patch by Moritz Roth!

llvm-svn: 208994
diff --git a/llvm/lib/Target/ARM/ARMSubtarget.h b/llvm/lib/Target/ARM/ARMSubtarget.h
index 77e4719..fd106f6 100644
--- a/llvm/lib/Target/ARM/ARMSubtarget.h
+++ b/llvm/lib/Target/ARM/ARMSubtarget.h
@@ -239,9 +239,7 @@
   /// getMaxInlineSizeThreshold - Returns the maximum memset / memcpy size
   /// that still makes it profitable to inline the call.
   unsigned getMaxInlineSizeThreshold() const {
-    // FIXME: For now, we don't lower memcpy's to loads / stores for Thumb1.
-    // Change this once Thumb1 ldmia / stmia support is added.
-    return isThumb1Only() ? 0 : 64;
+    return 64;
   }
   /// ParseSubtargetFeatures - Parses features string setting specified
   /// subtarget options.  Definition of function is auto generated by tblgen.