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This completes the handling for DLL import storage symbols when lowering instructions. A DLL import storage symbol must have an additional load performed prior to use. This is applicable to variables and functions. This is particularly important for non-function symbols as it is possible to handle function references by emitting a thunk which performs the translation from the unprefixed __imp_ symbol to the proper symbol (although, this is a non-optimal lowering). For a variable symbol, no such thunk can be accommodated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212431 91177308-0d34-0410-b5e6-96231b3b80d8
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