[CodeGen] [CodeGen] Attach function attributes to functions created in

CGBlocks.cpp.

This commit fixes a bug in clang's code-gen where it creates the
following functions but doesn't attach function attributes to them:

__copy_helper_block_
__destroy_helper_block_
__Block_byref_object_copy_
__Block_byref_object_dispose_

rdar://problem/20828324

Differential Revision: http://reviews.llvm.org/D13525

llvm-svn: 249735

1 files changed, 5 insertions, 4 deletions

diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index dd8e76e..8c5491b 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -867,12 +867,12 @@ void CodeGenModule::SetLLVMFunctionAttributesForDefinition(const Decl *D,
 
 void CodeGenModule::SetCommonAttributes(const Decl *D,
                                         llvm::GlobalValue *GV) {
-  if (const auto *ND = dyn_cast<NamedDecl>(D))
+  if (const auto *ND = dyn_cast_or_null<NamedDecl>(D))
     setGlobalVisibility(GV, ND);
   else
     GV->setVisibility(llvm::GlobalValue::DefaultVisibility);
 
-  if (D->hasAttr<UsedAttr>())
+  if (D && D->hasAttr<UsedAttr>())
     addUsedGlobal(GV);
 }
 
@@ -890,8 +890,9 @@ void CodeGenModule::setNonAliasAttributes(const Decl *D,
                                           llvm::GlobalObject *GO) {
   SetCommonAttributes(D, GO);
 
-  if (const SectionAttr *SA = D->getAttr<SectionAttr>())
-    GO->setSection(SA->getName());
+  if (D)
+    if (const SectionAttr *SA = D->getAttr<SectionAttr>())
+      GO->setSection(SA->getName());
 
   getTargetCodeGenInfo().setTargetAttributes(D, GO, *this);
 }