[PATCH] D20353: [Sparc][LEON] Erratum fix. Insert NOP after LD or LDF instruction

[Chris Dewhurst via llvm-commits]

lero_chris created this revision.
lero_chris added a reviewer: jacob_hansen.
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lero_chris set the repository for this revision to rL LLVM.
Herald added a subscriber: jyknight.

Due to an erratum in some versions of LEON, we must insert a NOP after any LD or LDF instruction to ensure the processor has time to load the value correctly before using it. This pass will implement that erratum fix.

Repository:
  rL LLVM

http://reviews.llvm.org/D20353

Files:
  lib/Target/Sparc/CMakeLists.txt
  lib/Target/Sparc/LeonFeatures.td
  lib/Target/Sparc/LeonPasses.cpp
  lib/Target/Sparc/LeonPasses.h
  lib/Target/Sparc/Sparc.td
  lib/Target/Sparc/SparcISelLowering.cpp
  lib/Target/Sparc/SparcSubtarget.cpp
  lib/Target/Sparc/SparcSubtarget.h
  lib/Target/Sparc/SparcTargetMachine.cpp
  lib/Target/Sparc/SparcTargetMachine.h
  test/CodeGen/SPARC/LeonInsertNOPLoadPassUT.ll

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