clang/test/CodeGenCXX/mangle-fail.cpp

   1 // RUN: %clang_cc1 -emit-llvm-only -x c++ -std=c++11 -triple %itanium_abi_triple -verify %s -DN=1
   2 // RUN: %clang_cc1 -emit-llvm-only -x c++ -std=c++11 -triple %itanium_abi_triple -verify %s -DN=2
   3 // RUN: %clang_cc1 -emit-llvm-only -x c++ -std=c++11 -triple arm64-apple-ios -fptrauth-intrinsics -verify %s -DN=3
   4 // RUN: %clang_cc1 -emit-llvm-only -x c++ -std=c++11 -triple aarch64-linux-gnu -fptrauth-intrinsics -verify %s -DN=3
   5
   6 struct A { int a; };
   7
   8 #if N == 1
   9 // ChooseExpr
  10 template<class T> void test(int (&)[sizeof(__builtin_choose_expr(true, 1, 1), T())]) {} // expected-error {{cannot yet mangle}}
  11 template void test<int>(int (&)[sizeof(int)]);
  12
  13 #elif N == 2
  14 // CompoundLiteralExpr
  15 template<class T> void test(int (&)[sizeof((A){}, T())]) {} // expected-error {{cannot yet mangle}}
  16 template void test<int>(int (&)[sizeof(A)]);
  17
  18 #elif N == 3
  19 // __builtin_ptrauth_type_discriminator
  20 template <class T, unsigned disc>
  21 struct S1 {};
  22
  23 template<class T>
  24 void func(S1<T, __builtin_ptrauth_type_discriminator(T)> s1) { // expected-error {{cannot yet mangle __builtin_ptrauth_type_discriminator expression}}
  25 }
  26
  27 void testfunc1() {
  28   func(S1<int(), __builtin_ptrauth_type_discriminator(int())>());
  29 }
  30
  31 // FIXME: There are several more cases we can't yet mangle.
  32
  33 #else
  34 #error unknown N
  35 #endif