Rafael Espindola 981c18bd80 Drop comdats from the dst module if they are not selected. ... A really unfortunate design of llvm-link and related libraries is that they operate one module at a time. This means they can copy a GV to the destination module that should not be there in the final result because a later bitcode file takes precedence. We already handled cases like a strong GV replacing a weak for example. One case that is not currently handled is a comdat replacing another. This doesn't happen in ELF, but with COFF largest selection kind it is possible. In "llvm-link a.ll b.ll" if the selected comdat was from a.ll, everything will work and we will not copy the comdat from b.ll. But if we run "llvm-link b.ll a.ll", we fail to delete the already copied comdat from b.ll. This patch fixes that. llvm-svn: 264103		2016-03-22 21:35:47 +00:00
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CMakeLists.txt	Slit lib/Linker in two.	2015-12-10 14:19:35 +00:00
IRMover.cpp	Minor cleanup and documentation to IRMover (NFC)	2016-03-11 22:19:06 +00:00
LinkDiagnosticInfo.h	Slit lib/Linker in two.	2015-12-10 14:19:35 +00:00
LinkModules.cpp	Drop comdats from the dst module if they are not selected.	2016-03-22 21:35:47 +00:00
LLVMBuild.txt