[PATCH] Disable passes on optnone functions

[Paul Robinson]

probinson added you to the CC list for the revision "Disable passes on optnone functions".

Hi chandlerc,

Functions marked 'optnone' should not be optimized.  Per Chandler's request, we avoided adding new attributes that Pass Manager would have to be aware of, and had each pass individually ignore 'optnone' functions.

http://llvm-reviews.chandlerc.com/D2369

Files:
  lib/IR/LegacyPassManager.cpp
  lib/Analysis/LoopPass.cpp
  lib/Transforms/Scalar/JumpThreading.cpp
  lib/Transforms/Scalar/Reassociate.cpp
  lib/Transforms/Scalar/SimplifyCFGPass.cpp
  lib/Transforms/Scalar/DeadStoreElimination.cpp
  lib/Transforms/Scalar/SROA.cpp
  lib/Transforms/Scalar/EarlyCSE.cpp
  lib/Transforms/Scalar/ADCE.cpp
  lib/Transforms/Scalar/MemCpyOptimizer.cpp
  lib/Transforms/Scalar/TailRecursionElimination.cpp
  lib/Transforms/Scalar/ScalarReplAggregates.cpp
  lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
  lib/Transforms/Scalar/SCCP.cpp
  lib/Transforms/Scalar/GVN.cpp
  lib/Transforms/Scalar/DCE.cpp
  lib/Transforms/InstCombine/InstructionCombining.cpp
  lib/Transforms/Vectorize/SLPVectorizer.cpp
  lib/Transforms/Utils/LowerExpectIntrinsic.cpp
  lib/CodeGen/IfConversion.cpp
  lib/CodeGen/MachineLICM.cpp
  lib/CodeGen/PeepholeOptimizer.cpp
  lib/CodeGen/ProcessImplicitDefs.cpp
  lib/CodeGen/TailDuplication.cpp
  lib/CodeGen/EarlyIfConversion.cpp
  lib/CodeGen/DeadMachineInstructionElim.cpp
  lib/CodeGen/BranchFolding.cpp
  lib/CodeGen/OptimizePHIs.cpp
  lib/CodeGen/MachineSink.cpp
  lib/CodeGen/MachineCSE.cpp
  lib/CodeGen/MachineCopyPropagation.cpp
  test/Transforms/FunctionAttrs/optnone.ll
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