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author | Nico Rieck <nico.rieck@gmail.com> | 2014-01-14 11:55:03 +0000 |
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committer | Nico Rieck <nico.rieck@gmail.com> | 2014-01-14 11:55:03 +0000 |
commit | bce07a0c3bb907488e75bcabe0d7c6a8fb9c7132 (patch) | |
tree | e2d9d6de6bafcbf303219d701a015e3e78a0388a /lib/ExecutionEngine/ExecutionEngine.cpp | |
parent | 1b1321f0805d74481af18c1bdefd6ed7ef2b60e6 (diff) | |
download | llvm-bce07a0c3bb907488e75bcabe0d7c6a8fb9c7132.tar.gz llvm-bce07a0c3bb907488e75bcabe0d7c6a8fb9c7132.tar.bz2 llvm-bce07a0c3bb907488e75bcabe0d7c6a8fb9c7132.tar.xz |
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199204 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/ExecutionEngine/ExecutionEngine.cpp')
-rw-r--r-- | lib/ExecutionEngine/ExecutionEngine.cpp | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/lib/ExecutionEngine/ExecutionEngine.cpp b/lib/ExecutionEngine/ExecutionEngine.cpp index abc8877ec5..88ec5b3e6a 100644 --- a/lib/ExecutionEngine/ExecutionEngine.cpp +++ b/lib/ExecutionEngine/ExecutionEngine.cpp @@ -1211,9 +1211,7 @@ void ExecutionEngine::emitGlobals() { } // If the existing global is strong, never replace it. - if (GVEntry->hasExternalLinkage() || - GVEntry->hasDLLImportLinkage() || - GVEntry->hasDLLExportLinkage()) + if (GVEntry->hasExternalLinkage()) continue; // Otherwise, we know it's linkonce/weak, replace it if this is a strong |