clang/test/CodeGenCXX/mangle-unnamed.cpp

   1 // RUN: %clang_cc1 -std=c++98 -emit-llvm %s -o - -triple=x86_64-apple-darwin10 | FileCheck %s
   2 // RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple=x86_64-apple-darwin10 | FileCheck %s
   3
   4 struct S {
   5   virtual ~S() { }
   6 };
   7
   8 // PR5706
   9 // Make sure this doesn't crash; the mangling doesn't matter because the name
  10 // doesn't have linkage.
  11 static struct : S { } obj8;
  12
  13 void f() {
  14   // Make sure this doesn't crash; the mangling doesn't matter because the
  15   // generated vtable/etc. aren't modifiable (although it would be nice for
  16   // codesize to make it consistent inside inline functions).
  17   static struct : S { } obj8;
  18 }
  19
  20 inline int f2() {
  21   // FIXME: We don't mangle the names of a or x correctly!
  22   static struct { int a() { static int x; return ++x; } } obj;
  23   return obj.a();
  24 }
  25
  26 int f3() { return f2(); }
  27
  28 struct A {
  29   typedef struct { int x; } *ptr;
  30   ptr m;
  31   int a() {
  32     static struct x {
  33       // FIXME: We don't mangle the names of a or x correctly!
  34       int a(ptr A::*memp) { static int x; return ++x; }
  35     } a;
  36     return a.a(&A::m);
  37   }
  38 };
  39
  40 int f4() { return A().a(); }
  41
  42 int f5() {
  43   static union {
  44     int a;
  45   };
  46
  47   // CHECK: _ZZ2f5vE1a
  48   return a;
  49 }
  50
  51 #if __cplusplus <= 199711L
  52 int f6() {
  53   static union {
  54     union {
  55       int : 1;
  56     };
  57     int b;
  58   };
  59
  60   // CXX98: _ZZ2f6vE1b
  61   return b;
  62 }
  63 #endif
  64
  65 int f7() {
  66   static union {
  67     union {
  68       int b;
  69     } a;
  70   };
  71
  72   // CHECK: _ZZ2f7vE1a
  73   return a.b;
  74 }
  75
  76 // This used to cause an assert because the typedef-for-anonymous-tag
  77 // code was trying to claim the enum for the template.
  78 enum { T8 };
  79 template <class T> struct Test8 {
  80   typedef T type;
  81   Test8(type t) {} // tested later
  82 };
  83 template <class T> void make_test8(T value) { Test8<T> t(value); }
  84 void test8() { make_test8(T8); }
  85
  86 // CHECK-LABEL: define internal void @"_ZNV3$_35test9Ev"(
  87 typedef volatile struct {
  88   void test9() volatile {}
  89 } Test9;
  90 void test9() {
  91   Test9 a;
  92   a.test9();
  93 }
  94
  95 // CHECK-LABEL: define internal void @"_ZN5Test8I3$_2EC1ES0_"(