clang/test/Sema/gnu-asm-pmf.cpp

   1 // RUN: %clang_cc1 -triple x86_64-unknown-windows-msvc -std=c++23 -fsyntax-only %s -verify
   2 // RUN: %clang_cc1 -triple x86_64-unknown-windows-itanium -std=c++23 -fsyntax-only %s -verify
   3
   4 struct S {
   5   void operator()();
   6 };
   7
   8 struct T {
   9   virtual void operator()();
  10 };
  11
  12 struct U {
  13   static void operator()();
  14 };
  15
  16 struct V: virtual T {
  17   virtual void f();
  18 };
  19
  20 struct W : virtual V {
  21   int i;
  22 };
  23
  24 struct X {
  25   __UINTPTR_TYPE__ ptr;
  26   __UINTPTR_TYPE__ adj;
  27 };
  28
  29 auto L = [](){};
  30
  31 void f() {
  32   auto pmf = &S::operator();
  33
  34   __asm__ __volatile__ ("" : : "r"(&decltype(L)::operator()));
  35   // expected-error@-1{{cannot pass a pointer-to-member through register-constrained inline assembly parameter}}
  36   __asm__ __volatile__ ("" : : "r"(&S::operator()));
  37   // expected-error@-1{{cannot pass a pointer-to-member through register-constrained inline assembly parameter}}
  38   __asm__ __volatile__ ("" : : "r"(&T::operator()));
  39   // expected-error@-1{{cannot pass a pointer-to-member through register-constrained inline assembly parameter}}
  40   __asm__ __volatile__ ("" : : "r"(pmf));
  41   // expected-error@-1{{cannot pass a pointer-to-member through register-constrained inline assembly parameter}}
  42   __asm__ __volatile__ ("" : : "r"(&W::f));
  43   // expected-error@-1{{cannot pass a pointer-to-member through register-constrained inline assembly parameter}}
  44   __asm__ __volatile__ ("" : : "r"(&W::i));
  45   // expected-error@-1{{cannot pass a pointer-to-member through register-constrained inline assembly parameter}}
  46
  47   __asm__ __volatile__ ("" : : "r"(X{0,0}));
  48   __asm__ __volatile__ ("" : : "r"(&U::operator()));
  49 }