1*67e74705SXin Li // RUN: %clang -S -target armv7l-unknown-linux-gnueabihf -emit-llvm -O1 -mllvm -disable-llvm-optzns -S %s -o - | FileCheck %s
2*67e74705SXin Li
3*67e74705SXin Li // This test should not to generate llvm.lifetime.start/llvm.lifetime.end for
4*67e74705SXin Li // f function because all temporary objects in this function are used for the
5*67e74705SXin Li // final result
6*67e74705SXin Li
7*67e74705SXin Li class S {
8*67e74705SXin Li char *ptr;
9*67e74705SXin Li unsigned int len;
10*67e74705SXin Li };
11*67e74705SXin Li
12*67e74705SXin Li class T {
13*67e74705SXin Li S left;
14*67e74705SXin Li S right;
15*67e74705SXin Li
16*67e74705SXin Li public:
17*67e74705SXin Li T(const char s[]);
18*67e74705SXin Li T(S);
19*67e74705SXin Li
20*67e74705SXin Li T concat(const T &Suffix) const;
21*67e74705SXin Li const char * str() const;
22*67e74705SXin Li };
23*67e74705SXin Li
f(S s)24*67e74705SXin Li const char * f(S s)
25*67e74705SXin Li {
26*67e74705SXin Li // CHECK: [[T1:%.*]] = alloca %class.T, align 4
27*67e74705SXin Li // CHECK: [[T2:%.*]] = alloca %class.T, align 4
28*67e74705SXin Li // CHECK: [[T3:%.*]] = alloca %class.T, align 4
29*67e74705SXin Li // CHECK: [[T4:%.*]] = call %class.T* @_ZN1TC1EPKc(%class.T* [[T1]], i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i32 0, i32 0))
30*67e74705SXin Li // CHECK: [[T5:%.*]] = call %class.T* @_ZN1TC1E1S(%class.T* [[T2]], [2 x i32] %{{.*}})
31*67e74705SXin Li // CHECK: call void @_ZNK1T6concatERKS_(%class.T* sret [[T3]], %class.T* [[T1]], %class.T* dereferenceable(16) [[T2]])
32*67e74705SXin Li // CHECK: [[T6:%.*]] = call i8* @_ZNK1T3strEv(%class.T* [[T3]])
33*67e74705SXin Li // CHECK: ret i8* [[T6]]
34*67e74705SXin Li
35*67e74705SXin Li return T("[").concat(T(s)).str();
36*67e74705SXin Li }
37