entry:
; CHECK: main
; CHECK: mov x29, sp
-; CHECK: mov [[REG:x[0-9]+]], sp
-; CHECK-NEXT: add x0, [[REG]], #8
+; CHECK: mov x[[REG:[0-9]+]], sp
+; CHECK-NEXT: orr x[[REG1:[0-9]+]], xzr, #0x8
+; CHECK-NEXT: add x0, x[[REG]], x[[REG1]]
%E = alloca %struct.S2Ty, align 4
%B = getelementptr inbounds %struct.S2Ty* %E, i32 0, i32 1
call void @takeS1(%struct.S1Ty* %B)