Decouple dllexport/dllimport from linkage
Representing dllexport/dllimport as distinct linkage types prevents using
these attributes on templates and inline functions.
Instead of introducing further mixed linkage types to include linkonce and
weak ODR, the old import/export linkage types are replaced with a new
separate visibility-like specifier:
define available_externally dllimport void @f() {}
@Var = dllexport global i32 1, align 4
Linkage for dllexported globals and functions is now equal to their linkage
without dllexport. Imported globals and functions must be either
declarations with external linkage, or definitions with
AvailableExternallyLinkage.
llvm-svn: 199218
diff --git a/llvm/include/llvm-c/Core.h b/llvm/include/llvm-c/Core.h
index 269869e..a84a031 100644
--- a/llvm/include/llvm-c/Core.h
+++ b/llvm/include/llvm-c/Core.h
@@ -284,8 +284,8 @@
LLVMInternalLinkage, /**< Rename collisions when linking (static
functions) */
LLVMPrivateLinkage, /**< Like Internal, but omit from symbol table */
- LLVMDLLImportLinkage, /**< Function to be imported from DLL */
- LLVMDLLExportLinkage, /**< Function to be accessible from DLL */
+ LLVMDLLImportLinkage, /**< Obsolete */
+ LLVMDLLExportLinkage, /**< Obsolete */
LLVMExternalWeakLinkage,/**< ExternalWeak linkage description */
LLVMGhostLinkage, /**< Obsolete */
LLVMCommonLinkage, /**< Tentative definitions */