From bb9760db9b86e93a638ed430d0a14785f7ff9064 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Tue, 9 Jun 2015 19:08:19 +0000
Subject: Vendor import of clang trunk r239412:
 https://llvm.org/svn/llvm-project/cfe/trunk@239412

---
 lib/CodeGen/CodeGenModule.cpp | 39 +++++++++++++++++++++++----------------
 1 file changed, 23 insertions(+), 16 deletions(-)

(limited to 'lib/CodeGen/CodeGenModule.cpp')

diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index 4005061..9496831 100644
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -676,6 +676,25 @@ CodeGenModule::getFunctionLinkage(GlobalDecl GD) {
   return getLLVMLinkageForDeclarator(D, Linkage, /*isConstantVariable=*/false);
 }
 
+void CodeGenModule::setFunctionDLLStorageClass(GlobalDecl GD, llvm::Function *F) {
+  const auto *FD = cast<FunctionDecl>(GD.getDecl());
+
+  if (const auto *Dtor = dyn_cast_or_null<CXXDestructorDecl>(FD)) {
+    if (getCXXABI().useThunkForDtorVariant(Dtor, GD.getDtorType())) {
+      // Don't dllexport/import destructor thunks.
+      F->setDLLStorageClass(llvm::GlobalValue::DefaultStorageClass);
+      return;
+    }
+  }
+
+  if (FD->hasAttr<DLLImportAttr>())
+    F->setDLLStorageClass(llvm::GlobalVariable::DLLImportStorageClass);
+  else if (FD->hasAttr<DLLExportAttr>())
+    F->setDLLStorageClass(llvm::GlobalVariable::DLLExportStorageClass);
+  else
+    F->setDLLStorageClass(llvm::GlobalVariable::DefaultStorageClass);
+}
+
 void CodeGenModule::setFunctionDefinitionAttributes(const FunctionDecl *D,
                                                     llvm::Function *F) {
   setNonAliasAttributes(D, F);
@@ -817,7 +836,7 @@ void CodeGenModule::setNonAliasAttributes(const Decl *D,
   if (const SectionAttr *SA = D->getAttr<SectionAttr>())
     GO->setSection(SA->getName());
 
-  getTargetCodeGenInfo().SetTargetAttributes(D, GO, *this);
+  getTargetCodeGenInfo().setTargetAttributes(D, GO, *this);
 }
 
 void CodeGenModule::SetInternalFunctionAttributes(const Decl *D,
@@ -889,13 +908,6 @@ void CodeGenModule::SetFunctionAttributes(GlobalDecl GD, llvm::Function *F,
 
   setLinkageAndVisibilityForGV(F, FD);
 
-  if (const auto *Dtor = dyn_cast_or_null<CXXDestructorDecl>(FD)) {
-    if (getCXXABI().useThunkForDtorVariant(Dtor, GD.getDtorType())) {
-      // Don't dllexport/import destructor thunks.
-      F->setDLLStorageClass(llvm::GlobalValue::DefaultStorageClass);
-    }
-  }
-
   if (const SectionAttr *SA = FD->getAttr<SectionAttr>())
     F->setSection(SA->getName());
 
@@ -909,13 +921,13 @@ void CodeGenModule::SetFunctionAttributes(GlobalDecl GD, llvm::Function *F,
 void CodeGenModule::addUsedGlobal(llvm::GlobalValue *GV) {
   assert(!GV->isDeclaration() &&
          "Only globals with definition can force usage.");
-  LLVMUsed.push_back(GV);
+  LLVMUsed.emplace_back(GV);
 }
 
 void CodeGenModule::addCompilerUsedGlobal(llvm::GlobalValue *GV) {
   assert(!GV->isDeclaration() &&
          "Only globals with definition can force usage.");
-  LLVMCompilerUsed.push_back(GV);
+  LLVMCompilerUsed.emplace_back(GV);
 }
 
 static void emitUsed(CodeGenModule &CGM, StringRef Name,
@@ -2455,12 +2467,7 @@ void CodeGenModule::EmitGlobalFunctionDefinition(GlobalDecl GD,
   // declarations).
   auto *Fn = cast<llvm::Function>(GV);
   setFunctionLinkage(GD, Fn);
-  if (D->hasAttr<DLLImportAttr>())
-    GV->setDLLStorageClass(llvm::GlobalVariable::DLLImportStorageClass);
-  else if (D->hasAttr<DLLExportAttr>())
-    GV->setDLLStorageClass(llvm::GlobalVariable::DLLExportStorageClass);
-  else
-    GV->setDLLStorageClass(llvm::GlobalVariable::DefaultStorageClass);
+  setFunctionDLLStorageClass(GD, Fn);
 
   // FIXME: this is redundant with part of setFunctionDefinitionAttributes
   setGlobalVisibility(Fn, D);
-- 
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