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Block address forward-references are implemented by creating a `BasicBlock` ahead of time that gets inserted in the `Function` when it's eventually encountered. However, if the same blockaddress was used in two separate functions that were parsed *before* the referenced function (and the blockaddress was never used at global scope), two separate basic blocks would get created, one of which would be forgotten creating invalid IR. This commit changes the forward-reference logic to create only one basic block (and always return the same blockaddress). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215805 91177308-0d34-0410-b5e6-96231b3b80d8 |
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