1// RUN: %clang_cc1 -triple i386-unknown-unknown %s -O3 -emit-llvm -o - | grep 'ret i32 6'
2// RUN: %clang_cc1 -triple i386-unknown-unknown -x c++ %s -O3 -emit-llvm -o - | grep 'ret i32 7'
3
4// This test case illustrates a peculiarity of the promotion of
5// enumeration types in C and C++. In particular, the enumeration type
6// "z" below promotes to an unsigned int in C but int in C++.
7static enum { foo, bar = 1U } z;
8
9int main (void)
10{
11  int r = 0;
12
13  if (bar - 2 < 0)
14    r += 4;
15  if (foo - 1 < 0)
16    r += 2;
17  if (z - 1 < 0)
18    r++;
19
20  return r;
21}
22
23