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Set dso_local on runtime variables. 

llvm-svn: 328068
This commit is contained in:
Rafael Espindola 2018-03-21 01:30:16 +00:00
parent 69949d0b5a
commit 6ab4ae4168
2 changed files with 7 additions and 2 deletions
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5
clang/lib/CodeGen/CodeGenModule.cpp
View File

@ -2953,7 +2953,10 @@ llvm::Constant *CodeGenModule::GetAddrOfGlobalVar(const VarDecl *D,
llvm::Constant * llvm::Constant *
CodeGenModule::CreateRuntimeVariable(llvm::Type *Ty, CodeGenModule::CreateRuntimeVariable(llvm::Type *Ty,
StringRef Name) { 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) { void CodeGenModule::EmitTentativeDefinition(const VarDecl *D) {

4
clang/test/CodeGenCXX/ubsan-vtable-checks.cpp
View File

@ -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-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-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-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 { struct T {
virtual ~T() {} virtual ~T() {}
virtual int v() { return 1; } virtual int v() { return 1; }
@ -14,6 +14,8 @@ struct U : T {
U::~U() {} U::~U() {}
// CHECK-VPTR-MS: @__ubsan_vptr_type_cache = external dso_local
// ITANIUM: define i32 @_Z5get_vP1T // ITANIUM: define i32 @_Z5get_vP1T
// MSABI: define dso_local i32 @"?get_v // MSABI: define dso_local i32 @"?get_v
int get_v(T* t) { int get_v(T* t) {