[PATCH] Specify the access behaviour of the memcpy, memmove and memset intrinsics

[Arnaud Allard de Grandmaison]

  Rebase + address Chandler's comments

  The isVolatile method is not as clean as it could be, but knowing that it will disappear in the next commits, I do not think it is worth modifying the different classes to provide a nicer transient interface.

Hi chandlerc,

http://llvm-reviews.chandlerc.com/D386

CHANGE SINCE LAST DIFF
  http://llvm-reviews.chandlerc.com/D386?vs=1628&id=1793#toc

Files:
  docs/LangRef.rst
  include/llvm/IR/IntrinsicInst.h
  include/llvm/IR/Intrinsics.td
  lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
  lib/IR/AutoUpgrade.cpp
  lib/IR/IRBuilder.cpp
  lib/IR/Verifier.cpp
  lib/Target/ARM/ARMFastISel.cpp
  lib/Transforms/Utils/InlineFunction.cpp
  test/Analysis/TypeBasedAliasAnalysis/memcpyopt.ll
  test/Assembler/auto_upgrade_intrinsics.ll
  test/Transforms/DeadStoreElimination/OverwriteStoreEnd.ll
  test/Transforms/InstCombine/objsize.ll
  test/Transforms/InstCombine/sprintf-1.ll
  test/Transforms/LoopIdiom/basic.ll
  test/Transforms/MemCpyOpt/align.ll
  test/Transforms/MemCpyOpt/smaller.ll
  test/Verifier/2006-12-12-IntrinsicDefine.ll
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