clang/test/CodeGen/2009-06-14-anonymous-union-init.c

   1 // RUN: %clang_cc1 %s -emit-llvm -triple x86_64-linux-gnu -o - | FileCheck %s --check-prefixes=CHECK,EMPTY
   2 // RUN: %clang_cc1 %s -emit-llvm -triple x86_64-windows-msvc -o - | FileCheck %s --check-prefixes=CHECK,EMPTY-MSVC
   3 // PR4390
   4 struct sysfs_dirent {
   5  union { struct sysfs_elem_dir { int x; } s_dir; };
   6  unsigned short s_mode;
   7 };
   8 struct sysfs_dirent sysfs_root = { {}, 16877 };
   9
  10 // CHECK: @sysfs_root = {{.*}}global { %union.anon, i16, [2 x i8] } { %union.anon zeroinitializer, i16 16877, [2 x i8] zeroinitializer }
  11
  12 struct Foo {
  13  union { struct empty {} x; };
  14  unsigned short s_mode;
  15 };
  16 struct Foo foo = { {}, 16877 };
  17
  18 // EMPTY:      @foo = {{.*}}global %struct.Foo { i16 16877 }
  19 // EMPTY-MSVC: @foo = {{.*}}global %struct.Foo { [4 x i8] zeroinitializer, i16 16877 }