[PATCH] D36467: [ARM, FIX] ARMTargetLowering::isLegalAddressingMode can accept illegal addressing modes for Thumb1 target

[Evgeny Astigeevich via Phabricator via llvm-commits]

eastig updated this revision to Diff 111960.
eastig added a comment.

- Moved Thumb1 related code into a separate function: ARMTargetLowering::isLegalT1ScaledAddressingMode
- Added support of the case: Scale == 2 and there is no base register


https://reviews.llvm.org/D36467

Files:
  lib/Target/ARM/ARMISelLowering.cpp
  lib/Target/ARM/ARMISelLowering.h
  test/CodeGen/Thumb/addr-modes.ll
  test/Transforms/LoopStrengthReduce/illegal-addr-modes.ll

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