24 lines · c
1// RUN: %clang_cc1 -triple i386-unknown-unknown %s -O3 -emit-llvm -o - | FileCheck -check-prefix=CHECK-C %s2// RUN: %clang_cc1 -triple i386-unknown-unknown -x c++ %s -O3 -emit-llvm -o - | FileCheck -check-prefix=CHECK-CXX %s3// CHECK-C: ret i32 64// CHECK-CXX: ret i32 75 6// This test case illustrates a peculiarity of the promotion of7// enumeration types in C and C++. In particular, the enumeration type8// "z" below promotes to an unsigned int in C but int in C++.9static enum { foo, bar = 1U } z;10 11int main (void)12{13 int r = 0;14 15 if (bar - 2 < 0)16 r += 4;17 if (foo - 1 < 0)18 r += 2;19 if (z - 1 < 0)20 r++;21 22 return r;23}24