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cf065f7118
Previously we were assuming whole program compilation. Now that separate compilation is a thing we need to update this pass. Firstly, it can no longer assert on the existence of malloc and free. This functions might not be in the current translation unit. If we need them then we will generate not imports for them. Secondly the global helper function we create should be marked as weak since we will be generating a separate copy in each translation unit. Finally the names of the symbols used must be unique and fixed since they need to agree across translation units. Differential Revision: https://reviews.llvm.org/D49263 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@337301 91177308-0d34-0410-b5e6-96231b3b80d8