[PATCH] D19719: [mips][atomics] Fix atomic instruction descriptions and uses.

[Simon Dardis via llvm-commits]

sdardis created this revision.
sdardis added a reviewer: dsanders.
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sdardis set the repository for this revision to rL LLVM.
Herald added a reviewer: vkalintiris.
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PR/27458 highlights that the MIPS backend does not have well formed
MIR for atomic operations (among other errors).

This patch adds expands and corrects the LL/SC descriptions and uses
for MIPS(64).

Repository:
  rL LLVM

http://reviews.llvm.org/D19719

Files:
  lib/Target/Mips/Mips32r6InstrInfo.td
  lib/Target/Mips/Mips64InstrInfo.td
  lib/Target/Mips/Mips64r6InstrInfo.td
  lib/Target/Mips/MipsISelLowering.cpp
  lib/Target/Mips/MipsInstrInfo.td
  test/CodeGen/Mips/atomic.ll

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