clang/test/CodeGenCXX/mangle-extern-local.cpp

   1 // RUN: %clang_cc1 %s -triple i386-unknown-unknown -emit-llvm -o - | FileCheck %s
   2
   3 // CHECK: @var1 = external global i32
   4 // CHECK: @_ZN1N4var2E = external global i32
   5 // CHECK: @var5 = external global i32
   6 // CHECK: @_ZN1N4var3E = external global i32
   7 // CHECK: @_ZN1N4var4E = external global i32
   8
   9 // CHECK: declare noundef i32 @_Z5func1v()
  10 // CHECK: declare noundef i32 @_ZN1N5func2Ev()
  11 // CHECK: declare i32 @func4()
  12 // CHECK: declare noundef i32 @_ZN1N5func3Ev()
  13
  14 int f1() {
  15   extern int var1, func1();
  16   return var1 + func1();
  17 }
  18
  19 namespace N {
  20
  21 int f2() {
  22   extern int var2, func2();
  23   return var2 + func2();
  24 }
  25
  26 struct S {
  27   static int f3() {
  28     extern int var3, func3();
  29     struct LC { int localfunc() { extern int var4; return var4; } };
  30     LC localobj;
  31     return var3 + func3() + localobj.localfunc();
  32   }
  33 };
  34
  35 int anchorf3() { return S::f3(); }
  36
  37 extern "C" {
  38 int f4() {
  39   extern int var5, func4();
  40   return var5 + func4();
  41 }
  42 }
  43
  44 }
  45