[PATCH] D28875: AArch64LoadStoreOptimizer: Update kill flags when merging stores

[Matthias Braun via Phabricator via llvm-commits]

MatzeB created this revision.
Herald added subscribers: mcrosier, rengolin, aemerson.

Kill flags need to be updated correctly when moving stores up/down to
form store pair instructions.
Those invalid flags have been ignored before but as of r290014 they are
recognized when using -mllvm -verify-machineinstrs.

Also simplifies test/CodeGen/AArch64/ldst-opt-dbg-limit.mir, renames it
to ldst-opt.mir test and adds a new tests for this change.


Repository:
  rL LLVM

https://reviews.llvm.org/D28875

Files:
  lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp
  test/CodeGen/AArch64/ldst-opt-dbg-limit.mir
  test/CodeGen/AArch64/ldst-opt.mir

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