[PATCH] DataLayout is mandatory, update the API to reflect it with references.

[Mehdi AMINI]

- add a DataLayout parameter to getOrEnforceKnownAlignment() instead of using CtxI instruction to please clang (which does not have an instruction hanging around).
- cleanup:
  - some includes were in header where they could have been in .cpp.
  - rename TD to DL everywhere for consistency (DataLayout was TargetData in the past apparently).
  - fixup all comments mentioning what to do in case of missing DataLayout


REPOSITORY
  rL LLVM

http://reviews.llvm.org/D8158

Files:
  include/llvm/Analysis/AliasAnalysis.h
  include/llvm/Analysis/ConstantFolding.h
  include/llvm/Analysis/IVUsers.h
  include/llvm/Analysis/InstructionSimplify.h
  include/llvm/Analysis/LazyValueInfo.h
  include/llvm/Analysis/Loads.h
  include/llvm/Analysis/LoopAccessAnalysis.h
  include/llvm/Analysis/MemoryBuiltins.h
  include/llvm/Analysis/MemoryDependenceAnalysis.h
  include/llvm/Analysis/PHITransAddr.h
  include/llvm/Analysis/ScalarEvolution.h
  include/llvm/Analysis/ScalarEvolutionExpander.h
  include/llvm/Analysis/TargetFolder.h
  include/llvm/Analysis/ValueTracking.h
  include/llvm/IR/IRBuilder.h
  include/llvm/IR/InstrTypes.h
  include/llvm/IR/Value.h
  include/llvm/Target/TargetLowering.h
  include/llvm/Transforms/IPO/LowerBitSets.h
  include/llvm/Transforms/Utils/BuildLibCalls.h
  include/llvm/Transforms/Utils/Cloning.h
  include/llvm/Transforms/Utils/Local.h
  include/llvm/Transforms/Utils/LoopUtils.h
  include/llvm/Transforms/Utils/SimplifyLibCalls.h
  lib/Analysis/AliasAnalysis.cpp
  lib/Analysis/BasicAliasAnalysis.cpp
  lib/Analysis/ConstantFolding.cpp
  lib/Analysis/DependenceAnalysis.cpp
  lib/Analysis/IPA/GlobalsModRef.cpp
  lib/Analysis/IPA/InlineCost.cpp
  lib/Analysis/IVUsers.cpp
  lib/Analysis/InstructionSimplify.cpp
  lib/Analysis/LazyValueInfo.cpp
  lib/Analysis/Lint.cpp
  lib/Analysis/Loads.cpp
  lib/Analysis/LoopAccessAnalysis.cpp
  lib/Analysis/MemDerefPrinter.cpp
  lib/Analysis/MemoryBuiltins.cpp
  lib/Analysis/MemoryDependenceAnalysis.cpp
  lib/Analysis/ScalarEvolution.cpp
  lib/Analysis/ScalarEvolutionExpander.cpp
  lib/Analysis/ValueTracking.cpp
  lib/CodeGen/AsmPrinter/AsmPrinter.cpp
  lib/CodeGen/CodeGenPrepare.cpp
  lib/CodeGen/MachineFunction.cpp
  lib/CodeGen/ScheduleDAGInstrs.cpp
  lib/CodeGen/SelectionDAG/SelectionDAG.cpp
  lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
  lib/CodeGen/TargetLoweringBase.cpp
  lib/CodeGen/WinEHPrepare.cpp
  lib/IR/Instructions.cpp
  lib/IR/Mangler.cpp
  lib/IR/Value.cpp
  lib/Linker/LinkModules.cpp
  lib/Target/Mips/MipsDelaySlotFiller.cpp
  lib/Target/NVPTX/NVPTXAsmPrinter.cpp
  lib/Target/PowerPC/PPCCTRLoops.cpp
  lib/Target/PowerPC/PPCLoopDataPrefetch.cpp
  lib/Target/PowerPC/PPCLoopPreIncPrep.cpp
  lib/Target/R600/AMDGPUTargetTransformInfo.cpp
  lib/Target/R600/R600ISelLowering.cpp
  lib/Transforms/IPO/ArgumentPromotion.cpp
  lib/Transforms/IPO/ConstantMerge.cpp
  lib/Transforms/IPO/GlobalOpt.cpp
  lib/Transforms/IPO/LowerBitSets.cpp
  lib/Transforms/IPO/MergeFunctions.cpp
  lib/Transforms/InstCombine/InstCombineAddSub.cpp
  lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
  lib/Transforms/InstCombine/InstCombineCalls.cpp
  lib/Transforms/InstCombine/InstCombineCasts.cpp
  lib/Transforms/InstCombine/InstCombineCompares.cpp
  lib/Transforms/InstCombine/InstCombineInternal.h
  lib/Transforms/InstCombine/InstCombineLoadStoreAlloca.cpp
  lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
  lib/Transforms/InstCombine/InstCombinePHI.cpp
  lib/Transforms/InstCombine/InstCombineSelect.cpp
  lib/Transforms/InstCombine/InstCombineShifts.cpp
  lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
  lib/Transforms/InstCombine/InstCombineVectorOps.cpp
  lib/Transforms/InstCombine/InstructionCombining.cpp
  lib/Transforms/Instrumentation/AddressSanitizer.cpp
  lib/Transforms/Instrumentation/BoundsChecking.cpp
  lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
  lib/Transforms/Instrumentation/MemorySanitizer.cpp
  lib/Transforms/Instrumentation/ThreadSanitizer.cpp
  lib/Transforms/ObjCARC/DependencyAnalysis.cpp
  lib/Transforms/ObjCARC/ObjCARC.h
  lib/Transforms/ObjCARC/ObjCARCAliasAnalysis.cpp
  lib/Transforms/ObjCARC/ObjCARCOpts.cpp
  lib/Transforms/ObjCARC/ProvenanceAnalysis.cpp
  lib/Transforms/ObjCARC/ProvenanceAnalysis.h
  lib/Transforms/ObjCARC/ProvenanceAnalysisEvaluator.cpp
  lib/Transforms/Scalar/AlignmentFromAssumptions.cpp
  lib/Transforms/Scalar/BDCE.cpp
  lib/Transforms/Scalar/ConstantProp.cpp
  lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
  lib/Transforms/Scalar/DeadStoreElimination.cpp
  lib/Transforms/Scalar/EarlyCSE.cpp
  lib/Transforms/Scalar/GVN.cpp
  lib/Transforms/Scalar/IndVarSimplify.cpp
  lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp
  lib/Transforms/Scalar/JumpThreading.cpp
  lib/Transforms/Scalar/LICM.cpp
  lib/Transforms/Scalar/LoadCombine.cpp
  lib/Transforms/Scalar/LoopIdiomRecognize.cpp
  lib/Transforms/Scalar/LoopInstSimplify.cpp
  lib/Transforms/Scalar/LoopRerollPass.cpp
  lib/Transforms/Scalar/LoopRotation.cpp
  lib/Transforms/Scalar/LoopStrengthReduce.cpp
  lib/Transforms/Scalar/LoopUnrollPass.cpp
  lib/Transforms/Scalar/LoopUnswitch.cpp
  lib/Transforms/Scalar/MemCpyOptimizer.cpp
  lib/Transforms/Scalar/SCCP.cpp
  lib/Transforms/Scalar/SROA.cpp
  lib/Transforms/Scalar/ScalarReplAggregates.cpp
  lib/Transforms/Scalar/Scalarizer.cpp
  lib/Transforms/Scalar/SeparateConstOffsetFromGEP.cpp
  lib/Transforms/Scalar/SimplifyCFGPass.cpp
  lib/Transforms/Scalar/Sink.cpp
  lib/Transforms/Scalar/TailRecursionElimination.cpp
  lib/Transforms/Utils/BuildLibCalls.cpp
  lib/Transforms/Utils/CloneFunction.cpp
  lib/Transforms/Utils/InlineFunction.cpp
  lib/Transforms/Utils/Local.cpp
  lib/Transforms/Utils/LoopSimplify.cpp
  lib/Transforms/Utils/LoopUnroll.cpp
  lib/Transforms/Utils/LoopUnrollRuntime.cpp
  lib/Transforms/Utils/PromoteMemoryToRegister.cpp
  lib/Transforms/Utils/SSAUpdater.cpp
  lib/Transforms/Utils/SimplifyCFG.cpp
  lib/Transforms/Utils/SimplifyInstructions.cpp
  lib/Transforms/Utils/SimplifyLibCalls.cpp
  lib/Transforms/Vectorize/BBVectorize.cpp
  lib/Transforms/Vectorize/LoopVectorize.cpp
  lib/Transforms/Vectorize/SLPVectorizer.cpp
  unittests/IR/IRBuilderTest.cpp
  unittests/IR/InstructionsTest.cpp

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