clang/test/Sema/128bitfloat.cpp

   1 // RUN: %clang_cc1 -verify -std=gnu++11 %s
   2 // RUN: %clang_cc1 -verify -std=c++11 %s
   3 // RUN: %clang_cc1 -triple powerpc64-linux -verify -std=c++11 %s
   4 // RUN: %clang_cc1 -triple i686-windows-gnu -verify -std=c++11 %s
   5 // RUN: %clang_cc1 -triple x86_64-windows-gnu -verify -std=c++11 %s
   6 // RUN: %clang_cc1 -triple x86_64-windows-msvc -verify -std=c++11 %s
   7
   8 #if defined(__FLOAT128__) || defined(__SIZEOF_FLOAT128__)
   9
  10 #if defined(__powerpc__)
  11 template <typename> struct __is_float128 { static constexpr bool value = false; };
  12 template <> struct __is_float128<__float128> { static constexpr bool value = true; };
  13 static_assert(__is_float128<__ieee128>::value, "__ieee128 aliases to __float128");
  14 #endif
  15
  16 __float128 f;
  17 template<typename> struct __is_floating_point_helper {};
  18 template<> struct __is_floating_point_helper<__float128> {};
  19 int g(int x, __float128 *y) {
  20   return x + *y;
  21 }
  22
  23 // expected-no-error {{__float128 is not supported on this target}}
  24 #else
  25 #if !defined(__STRICT_ANSI__)
  26 __float128 f;  // expected-error {{__float128 is not supported on this target}}
  27 // But this should work:
  28 template<typename> struct __is_floating_point_helper {};
  29 template<> struct __is_floating_point_helper<__float128> {};  // expected-error {{__float128 is not supported on this target}}
  30
  31 // FIXME: This could have a better diag.
  32 int g(int x, __float128 *y) {  // expected-error {{__float128 is not supported on this target}}
  33   return x + *y;
  34 }
  35
  36 #else
  37 __float128 f;  // expected-error {{__float128 is not supported on this target}}
  38 template<typename> struct __is_floating_point_helper {};
  39 template<> struct __is_floating_point_helper<__float128> {};  // expected-error {{__float128 is not supported on this target}}
  40
  41 int g(int x, __float128 *y) {  // expected-error {{__float128 is not supported on this target}}
  42   return x + *y;
  43 }
  44
  45 #endif
  46 #endif
  47
  48 #ifdef __powerpc__
  49 __ibm128 i;
  50 template <> struct __is_floating_point_helper<__ibm128> {};
  51 int w(int x, __ibm128 *y) {
  52   return x + *y;
  53 }
  54 // expected-no-error {{__ibm128 is not supported on this target}}
  55 #else
  56 __ibm128 i;                                                 // expected-error {{__ibm128 is not supported on this target}}
  57 template <> struct __is_floating_point_helper<__ibm128> {}; // expected-error {{__ibm128 is not supported on this target}}
  58 int w(int x, __ibm128 *y) {                                 // expected-error {{__ibm128 is not supported on this target}}
  59   return x + *y;
  60 }
  61 #endif