[ARM] Testcase for Thumb1 cmp with constants.
[ARM] Testcase for Thumb1 cmp with constants.

Even if a comparison isn't legal, we should try to prefer constants
which can be materialized with a two-instruction sequence. (Thinking
about it a bit more, there might be some more clever sequence we could
generate for certain comparisons invoving powers of two, but I'm not
sure exactly what that would look like.)



git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@335003 91177308-0d34-0410-b5e6-96231b3b80d8

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