llvm dev - Nov 2017 - discrepancy between include/llvm/ADT/Triple.h and lib/Target/ARM/ARMGenSubtargetInfo.inc?

lib/Target/ARM/ARMGenSubtargetInfo.inc:

namespace ARM {
enum {
  ARMv2 = 0,
  ARMv2a = 1,
  ARMv3 = 2,
  ARMv3m = 3,
  ARMv4 = 4,
  ARMv4t = 5,
  ARMv5t = 6,
  ARMv5te = 7,
  ARMv5tej = 8,
  ARMv6 = 9,
  ARMv6j = 10,
  ARMv6k = 11,
  ARMv6kz = 12,
  ARMv6m = 13,
  ARMv6sm = 14,
  ARMv6t2 = 15,
  ARMv7a = 16,
  ARMv7em = 17,
  ARMv7k = 18,
  ARMv7m = 19,
  ARMv7r = 20,
  ARMv7s = 21,
  ARMv7ve = 22,
  ARMv8a = 23,
  ARMv8mBaseline = 24,
  ARMv8mMainline = 25,
  ARMv8r = 26,
  ARMv81a = 27,
  ARMv82a = 28,
  ARMv83a = 29,
...

include/llvm/ADT/Triple.h:
    ARMSubArch_v8_3a,
    ARMSubArch_v8_2a,
    ARMSubArch_v8_1a,
    ARMSubArch_v8,
    ARMSubArch_v8r,
    ARMSubArch_v8m_baseline,
    ARMSubArch_v8m_mainline,
    ARMSubArch_v7,
    ARMSubArch_v7em,
    ARMSubArch_v7m,
    ARMSubArch_v7s,
    ARMSubArch_v7k,
    ARMSubArch_v7ve,
    ARMSubArch_v6,
    ARMSubArch_v6m,
    ARMSubArch_v6k,
    ARMSubArch_v6t2,
    ARMSubArch_v5,
    ARMSubArch_v5te,
    ARMSubArch_v4t,



Why are these different? Which one is canonical? What would I do to
enumerate the actual list of all targets?
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