conversion-64-32.c revision fdba18263ffd624846701ad115d35edb3e2ee0a7 
1// RUN: %clang_cc1 -fsyntax-only -verify -Wshorten-64-to-32 -triple x86_64-apple-darwin %s
2
3int test0(long v) {
4  return v; // expected-warning {{implicit conversion loses integer precision}}
5}
6
7
8// rdar://9546171
9typedef int  int4  __attribute__ ((vector_size(16)));
10typedef long long long2 __attribute__((__vector_size__(16)));
11
12int4 test1(long2 a) {
13  int4  v127 = a;  // no warning.
14  return v127;
15}
16
17// <rdar://problem/10759934>
18// Don't warn about -Wshorten-64-to-32 in unreachable code.
19typedef unsigned int uint32_t;
20typedef unsigned long long uint64_t;
21int rdar10759934() {
22  uint32_t thing = 0;
23  uint64_t thing2 = 0;
24
25  switch (sizeof(thing2)) {
26  case 8:
27    break;
28  case 4:
29    thing = thing2; // no-warning
30  default:
31    break;
32  }
33
34  return 0;
35}
36