1// RUN: %clang_cc1 -verify -fsyntax-only -Wlarge-by-value-copy=100 %s
2
3// rdar://8548050
4namespace rdar8548050 {
5
6struct S100 {
7    char x[100];
8};
9
10struct S101 {
11    char x[101];
12};
13
14S100 f100(S100 s) { return s; }
15
16S101 f101(S101 s) { return s; } // expected-warning {{return value of 'f101' is a large (101 bytes) pass-by-value object}} \
17                                // expected-warning {{'s' is a large (101 bytes) pass-by-value argument}}
18
19typedef int Arr[200];
20void farr(Arr a) { }
21
22struct NonPOD {
23  char x[200];
24  virtual void m();
25};
26
27NonPOD fNonPOD(NonPOD s) { return s; }
28
29template <unsigned size>
30struct TS {
31    char x[size];
32};
33
34template <unsigned size>
35void tf(TS<size> ts) {} // expected-warning {{ts' is a large (300 bytes) pass-by-value argument}}
36
37void g() {
38    TS<300> ts;
39    tf<300>(ts); // expected-note {{instantiation}}
40}
41
42}
43
44template<typename T> class DependentPOD {
45  enum b { x };
46  b foo() { return x; }
47};
48