1; RUN: llvm-as -disable-output < %s 2 3%"struct.std::pair<int,int>" = type { i32, i32 } 4 5declare void @_Z3barRKi(ptr) 6 7declare void @llvm.lifetime.start(i64, ptr nocapture) nounwind 8declare void @llvm.lifetime.end(i64, ptr nocapture) nounwind 9declare ptr @llvm.invariant.start.p0(i64, ptr nocapture) readonly nounwind 10declare void @llvm.invariant.end.p0(ptr, i64, ptr nocapture) nounwind 11 12define i32 @_Z4foo2v() nounwind { 13entry: 14 %x = alloca %"struct.std::pair<int,int>" 15 16 ;; Constructor starts here (this isn't needed since it is immediately 17 ;; preceded by an alloca, but shown for completeness). 18 call void @llvm.lifetime.start(i64 8, ptr %x) 19 20 %0 = getelementptr %"struct.std::pair<int,int>", ptr %x, i32 0, i32 0 21 store i32 4, ptr %0, align 8 22 %1 = getelementptr %"struct.std::pair<int,int>", ptr %x, i32 0, i32 1 23 store i32 5, ptr %1, align 4 24 25 ;; Constructor has finished here. 26 %inv = call ptr @llvm.invariant.start.p0(i64 8, ptr %x) 27 call void @_Z3barRKi(ptr %0) nounwind 28 %2 = load i32, ptr %0, align 8 29 30 ;; Destructor is run here. 31 call void @llvm.invariant.end.p0(ptr %inv, i64 8, ptr %x) 32 ;; Destructor is done here. 33 call void @llvm.lifetime.end(i64 8, ptr %x) 34 ret i32 %2 35} 36