From b735004615be10ffa60dd3d4b0a060f0bed2f8de Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Thu, 1 Mar 2018 00:35:47 +0000
Subject: Start setting dllimport/dllexport in setGVProperties.

This is the next step in setting dso_local for COFF.

The patches changes setGVProperties to first set dllimport/dllexport
and changes a few cases that were setting dllimport/dllexport
manually. With this a few more GVs are marked dso_local.

llvm-svn: 326397
---
 clang/lib/CodeGen/CGObjCGNU.cpp | 40 +++++++---------------------------------
 1 file changed, 7 insertions(+), 33 deletions(-)

(limited to 'clang/lib/CodeGen/CGObjCGNU.cpp')

diff --git a/clang/lib/CodeGen/CGObjCGNU.cpp b/clang/lib/CodeGen/CGObjCGNU.cpp
index c8b8be7f455..57110467f61 100644
--- a/clang/lib/CodeGen/CGObjCGNU.cpp
+++ b/clang/lib/CodeGen/CGObjCGNU.cpp
@@ -1035,16 +1035,8 @@ llvm::Value *CGObjCGNU::GetClass(CodeGenFunction &CGF,
                                  const ObjCInterfaceDecl *OID) {
   auto *Value =
       GetClassNamed(CGF, OID->getNameAsString(), OID->isWeakImported());
-  if (CGM.getTriple().isOSBinFormatCOFF()) {
-    if (auto *ClassSymbol = dyn_cast<llvm::GlobalVariable>(Value)) {
-      auto DLLStorage = llvm::GlobalValue::DefaultStorageClass;
-      if (OID->hasAttr<DLLExportAttr>())
-        DLLStorage = llvm::GlobalValue::DLLExportStorageClass;
-      else if (OID->hasAttr<DLLImportAttr>())
-        DLLStorage = llvm::GlobalValue::DLLImportStorageClass;
-      ClassSymbol->setDLLStorageClass(DLLStorage);
-    }
-  }
+  if (auto *ClassSymbol = dyn_cast<llvm::GlobalVariable>(Value))
+    CGM.setGVProperties(ClassSymbol, OID);
   return Value;
 }
 
@@ -1061,13 +1053,7 @@ llvm::Value *CGObjCGNU::EmitNSAutoreleasePoolClassRef(CodeGenFunction &CGF) {
         if ((VD = dyn_cast<VarDecl>(Result)))
           break;
 
-      auto DLLStorage = llvm::GlobalValue::DefaultStorageClass;
-      if (!VD || VD->hasAttr<DLLImportAttr>())
-        DLLStorage = llvm::GlobalValue::DLLImportStorageClass;
-      else if (VD->hasAttr<DLLExportAttr>())
-        DLLStorage = llvm::GlobalValue::DLLExportStorageClass;
-
-      ClassSymbol->setDLLStorageClass(DLLStorage);
+      CGM.setGVProperties(ClassSymbol, VD);
     }
   }
   return Value;
@@ -2336,14 +2322,8 @@ void CGObjCGNU::GenerateClass(const ObjCImplementationDecl *OID) {
       NULLPtr, NULLPtr, 0x12L, ClassName.c_str(), nullptr, Zeros[0],
       GenerateIvarList(empty, empty, empty), ClassMethodList, NULLPtr, NULLPtr,
       NULLPtr, ZeroPtr, ZeroPtr, true);
-  if (CGM.getTriple().isOSBinFormatCOFF()) {
-    auto Storage = llvm::GlobalValue::DefaultStorageClass;
-    if (OID->getClassInterface()->hasAttr<DLLImportAttr>())
-      Storage = llvm::GlobalValue::DLLImportStorageClass;
-    else if (OID->getClassInterface()->hasAttr<DLLExportAttr>())
-      Storage = llvm::GlobalValue::DLLExportStorageClass;
-    cast<llvm::GlobalValue>(MetaClassStruct)->setDLLStorageClass(Storage);
-  }
+  CGM.setGVProperties(cast<llvm::GlobalValue>(MetaClassStruct),
+                      OID->getClassInterface());
 
   // Generate the class structure
   llvm::Constant *ClassStruct = GenerateClassStructure(
@@ -2351,14 +2331,8 @@ void CGObjCGNU::GenerateClass(const ObjCImplementationDecl *OID) {
       llvm::ConstantInt::get(LongTy, instanceSize), IvarList, MethodList,
       GenerateProtocolList(Protocols), IvarOffsetArray, Properties,
       StrongIvarBitmap, WeakIvarBitmap);
-  if (CGM.getTriple().isOSBinFormatCOFF()) {
-    auto Storage = llvm::GlobalValue::DefaultStorageClass;
-    if (OID->getClassInterface()->hasAttr<DLLImportAttr>())
-      Storage = llvm::GlobalValue::DLLImportStorageClass;
-    else if (OID->getClassInterface()->hasAttr<DLLExportAttr>())
-      Storage = llvm::GlobalValue::DLLExportStorageClass;
-    cast<llvm::GlobalValue>(ClassStruct)->setDLLStorageClass(Storage);
-  }
+  CGM.setGVProperties(cast<llvm::GlobalValue>(ClassStruct),
+                      OID->getClassInterface());
 
   // Resolve the class aliases, if they exist.
   if (ClassPtrAlias) {
-- 
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