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Fork of llvm with experimental commits and workarounds for RPCS3
3173b24456
These function can be dropped by the compiler if they are no longer referenced in the current module. However there is a change that another module is still referencing them because of the import. Multiple solutions can be used: - Always import LinkOnce when a caller is imported. This ensure that every module with a call to a LinkOnce has the definition and will be able to emit it if it emits the call. - Turn the LinkOnce into Weak, so that it is always emitted. - Turn all LinkOnce into available_externally and come back after all modules are codegen'ed to emit only one copy of the linkonce, when there is still a reference to it. This patch implement the second option, with am optimization that only *one* module will turn the LinkOnce into Weak, while the others will turn it into available_externally, so that there is exactly one copy emitted for the whole compilation. http://reviews.llvm.org/D18346 From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 265190 |
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