[PATCH] D23273: [ARM] Improve tests for sxta{b|h} and uxta{b|h} instructions for Thumb

[Sam Parker via llvm-commits]

samparker created this revision.
samparker added a subscriber: llvm-commits.
Herald added subscribers: samparker, rengolin, aemerson.

Created a predicate pattern for Thumb2 and HasT2ExtractPack and added more tests for those effected instructions along with a cortex-m4 target.

https://reviews.llvm.org/D23273

Files:
  lib/Target/ARM/ARMInstrFormats.td
  lib/Target/ARM/ARMInstrThumb2.td
  test/CodeGen/Thumb2/thumb2-sxt-uxt.ll

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