| // RUN: %clang_cc1 -triple i386-unknown-unknown -x c++ -emit-llvm -o - %s | FileCheck %s |
| |
| union _u { char a[]; } u = {}; |
| union _u0 { char a[]; } u0 = {0}; |
| |
| // CHECK: %union._u = type { [0 x i8] } |
| |
| // CHECK: @u = global %union._u zeroinitializer, align 1 |
| // CHECK: @u0 = global { [1 x i8] } zeroinitializer, align 1 |
| |
| union { char a[]; } z = {}; |
| // CHECK: @z = internal global %union.{{.*}} zeroinitializer, align 1 |
| union { char a[]; } z0 = {0}; |
| // CHECK: @z0 = internal global { [1 x i8] } zeroinitializer, align 1 |
| |
| /* C++ requires global anonymous unions have static storage, so we have to |
| reference them to keep them in the IR output. */ |
| char keep(int pick) |
| { |
| if (pick) |
| return z.a[0]; |
| else |
| return z0.a[0]; |
| } |
