[PATCH] D11057: [ARM] Thumb1 3 to 2 operand convertion for commutative operations

[scott douglass]

scott-0 created this revision.
scott-0 added a subscriber: llvm-commits.
Herald added subscribers: rengolin, aemerson.

Implements transformations like 'adcs    r0, r1, r0' => 'adcs    r0, r1' that are already done for Thumb2 targets.

http://reviews.llvm.org/D11057

Files:
  lib/Target/ARM/AsmParser/ARMAsmParser.cpp
  test/MC/ARM/thumb2-narrow-dp.ll
  test/MC/ARM/thumb_rewrites.s

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