Set dso_local on runtime variables.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@328068 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index 53177d26407767e02b95704acf90c44a15ddbc40..e7efd410dbf8eb7b8fd54e74a2fe29e398569281 100644 (file)
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -2953,7 +2953,10 @@ llvm::Constant *CodeGenModule::GetAddrOfGlobalVar(const VarDecl *D,
 llvm::Constant *
 CodeGenModule::CreateRuntimeVariable(llvm::Type *Ty,
                                      StringRef Name) {
-  return GetOrCreateLLVMGlobal(Name, llvm::PointerType::getUnqual(Ty), nullptr);
+  auto *Ret =
+      GetOrCreateLLVMGlobal(Name, llvm::PointerType::getUnqual(Ty), nullptr);
+  setDSOLocal(cast<llvm::GlobalValue>(Ret->stripPointerCasts()));
+  return Ret;
 }
 
 void CodeGenModule::EmitTentativeDefinition(const VarDecl *D) {

diff --git a/test/CodeGenCXX/ubsan-vtable-checks.cpp b/test/CodeGenCXX/ubsan-vtable-checks.cpp
index 96f128918c582fa8babd86b165511e477002dbdb..ec4a21a2b2b42cf774144595df4fc4cf77b27fe3 100644 (file)
--- a/test/CodeGenCXX/ubsan-vtable-checks.cpp
+++ b/test/CodeGenCXX/ubsan-vtable-checks.cpp
@@ -1,7 +1,7 @@
 // RUN: %clang_cc1 -std=c++11 -triple x86_64-unknown-linux -emit-llvm -fsanitize=null %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-NULL --check-prefix=ITANIUM
 // RUN: %clang_cc1 -std=c++11 -triple x86_64-windows -emit-llvm -fsanitize=null %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-NULL --check-prefix=MSABI
 // RUN: %clang_cc1 -std=c++11 -triple x86_64-unknown-linux -emit-llvm -fsanitize=null,vptr %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-VPTR --check-prefix=ITANIUM
-// RUN: %clang_cc1 -std=c++11 -triple x86_64-windows -emit-llvm -fsanitize=null,vptr %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-VPTR --check-prefix=MSABI
+// RUN: %clang_cc1 -std=c++11 -triple x86_64-windows -emit-llvm -fsanitize=null,vptr %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-VPTR --check-prefix=MSABI  --check-prefix=CHECK-VPTR-MS
 struct T {
   virtual ~T() {}
   virtual int v() { return 1; }
@@ -14,6 +14,8 @@ struct U : T {
 
 U::~U() {}
 
+// CHECK-VPTR-MS: @__ubsan_vptr_type_cache = external dso_local
+
 // ITANIUM: define i32 @_Z5get_vP1T
 // MSABI: define dso_local i32 @"?get_v
 int get_v(T* t) {