Daniel Dunbar | c7cbed0 | 2010-04-02 22:29:38 +0000 | [diff] [blame] | 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' |
Chris Lattner | d5bbce4 | 2007-08-29 17:48:46 +0000 | [diff] [blame] | 3 | |
Douglas Gregor | 6eb5be8 | 2011-01-18 18:38:18 +0000 | [diff] [blame] | 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++. |
Chris Lattner | d5bbce4 | 2007-08-29 17:48:46 +0000 | [diff] [blame] | 7 | static enum { foo, bar = 1U } z; |
| 8 | |
| 9 | int 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 | |