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author | Nico Rieck <nico.rieck@gmail.com> | 2014-01-14 15:22:47 +0000 |
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committer | Nico Rieck <nico.rieck@gmail.com> | 2014-01-14 15:22:47 +0000 |
commit | 38f68c5a2e3993a3ae51421d82e57ccca8f6ec38 (patch) | |
tree | 33b1f01682f8443c419396a7368769dbcb4d1a3f /lib/CodeGen | |
parent | d05a6582daf7af4142c91576739d4a780d4a30c8 (diff) | |
download | llvm-38f68c5a2e3993a3ae51421d82e57ccca8f6ec38.tar.gz llvm-38f68c5a2e3993a3ae51421d82e57ccca8f6ec38.tar.bz2 llvm-38f68c5a2e3993a3ae51421d82e57ccca8f6ec38.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@199218 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
-rw-r--r-- | lib/CodeGen/AsmPrinter/AsmPrinter.cpp | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp index 5a8e8cc2f0..cf950f8cc7 100644 --- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp +++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp @@ -257,7 +257,6 @@ void AsmPrinter::EmitLinkage(const GlobalValue *GV, MCSymbol *GVSym) const { OutStreamer.EmitSymbolAttribute(GVSym, MCSA_Weak); } return; - case GlobalValue::DLLExportLinkage: case GlobalValue::AppendingLinkage: // FIXME: appending linkage variables should go into a section of // their name or something. For now, just emit them as external. @@ -272,7 +271,6 @@ void AsmPrinter::EmitLinkage(const GlobalValue *GV, MCSymbol *GVSym) const { return; case GlobalValue::AvailableExternallyLinkage: llvm_unreachable("Should never emit this"); - case GlobalValue::DLLImportLinkage: case GlobalValue::ExternalWeakLinkage: llvm_unreachable("Don't know how to emit these"); } |