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* [MS] Don't escape MS C++ names with \01Reid Kleckner2018-03-161-2/+2
| | | | | | | It is not needed after LLVM r327734. Now it will be easier to copy-paste IR symbol names from Clang. llvm-svn: 327738
* Bring r325915 back.Rafael Espindola2018-02-231-2/+2
| | | | | | | | | | | | | | | The tests that failed on a windows host have been fixed. Original message: Start setting dso_local for COFF. With this there are still some GVs where we don't set dso_local because setGVProperties is never called. I intend to fix that in followup commits. This is just the bare minimum to teach shouldAssumeDSOLocal what it should do for COFF. llvm-svn: 325940
* Revert "Start setting dso_local for COFF."Rafael Espindola2018-02-231-2/+2
| | | | | | | | This reverts commit r325915. It will take some time to fix the failures on a windows host. llvm-svn: 325929
* Start setting dso_local for COFF.Rafael Espindola2018-02-231-2/+2
| | | | | | | | | With this there are still some GVs where we don't set dso_local because setGVProperties is never called. I intend to fix that in followup commits. This is just the bare minimum to teach shouldAssumeDSOLocal what it should do for COFF. llvm-svn: 325915
* [patch][pr19848] Produce explicit comdats in clang.Rafael Espindola2015-01-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | The llvm IR until recently had no support for comdats. This was a problem when targeting C++ on ELF/COFF as just using weak linkage would cause quite a bit of dead bits to remain on the executable (unless -ffunction-sections, -fdata-sections and --gc-sections were used). To fix the problem, llvm's codegen will just assume that any weak or linkonce that is not in an explicit comdat should be output in one with the same name as the global. This unfortunately breaks cases like pr19848 where a weak symbol is not xpected to be part of any comdat. Now that we have explicit comdats in the IR, we can finally get both cases right. This first patch just makes clang give explicit comdats to GlobalValues where t is allowed to. A followup patch to llvm will then stop implicitly producing comdats. llvm-svn: 225705
* MS compatibility: always emit dllexported in-class initialized static data ↵Hans Wennborg2014-07-171-0/+22
members (PR20140) This makes us emit dllexported in-class initialized static data members (which are treated as definitions in MSVC), even when they're not referenced. It also makes their special linkage reflected in the GVA linkage instead of getting massaged in CodeGen. Differential Revision: http://reviews.llvm.org/D4563 llvm-svn: 213304
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