Initial bits of ARMv4-only support.
Patch by John Tytgat!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97886 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMSubtarget.h b/lib/Target/ARM/ARMSubtarget.h
index 3f06b7b..6980851 100644
--- a/lib/Target/ARM/ARMSubtarget.h
+++ b/lib/Target/ARM/ARMSubtarget.h
@@ -26,7 +26,7 @@
 class ARMSubtarget : public TargetSubtarget {
 protected:
   enum ARMArchEnum {
-    V4T, V5T, V5TE, V6, V6T2, V7A
+    V4, V4T, V5T, V5TE, V6, V6T2, V7A
   };
 
   enum ARMFPEnum {
@@ -38,7 +38,7 @@
     Thumb2
   };
 
-  /// ARMArchVersion - ARM architecture version: V4T (base), V5T, V5TE,
+  /// ARMArchVersion - ARM architecture version: V4, V4T (base), V5T, V5TE,
   /// V6, V6T2, V7A.
   ARMArchEnum ARMArchVersion;