1 // RUN: %clang_cc1 -triple x86_64-linux-gnu -fsyntax-only -verify -fexceptions -fcxx-exceptions %s -std=c++14 2 3 // expected-error@+1{{invalid option 'invalid' for cpu_dispatch}} 4 void __attribute__((cpu_dispatch(atom, invalid))) invalid_cpu(); 5 6 void __attribute__((cpu_specific(atom))) no_default(void); 7 void __attribute__((cpu_specific(sandybridge))) no_default(void); 8 9 struct MVReference { 10 int __attribute__((cpu_specific(sandybridge))) bar(void); 11 int __attribute__((cpu_specific(ivybridge))) bar(void); 12 int __attribute__((cpu_specific(sandybridge))) foo(void); 13 }; 14 use1(void)15void use1(void){ 16 // OK, will fail in the linker, unless another TU provides the cpu_dispatch. 17 no_default(); 18 19 // expected-error@+1 {{call to non-static member function without an object argument}} 20 +MVReference::bar; 21 // expected-error@+1 {{call to non-static member function without an object argument}} 22 +MVReference::foo; 23 // expected-error@+1 {{reference to multiversioned function could not be resolved; did you mean to call it?}} 24 &MVReference::bar; 25 // expected-error@+1 {{reference to multiversioned function could not be resolved; did you mean to call it?}} 26 &MVReference::foo; 27 } 28 29 //expected-error@+1 {{attribute 'cpu_specific' multiversioned functions do not yet support constexpr functions}} 30 constexpr int __attribute__((cpu_specific(sandybridge))) foo(void); 31 32 int __attribute__((cpu_specific(sandybridge))) foo2(void); 33 //expected-error@+1 {{attribute 'cpu_specific' multiversioned functions do not yet support constexpr functions}} 34 constexpr int __attribute__((cpu_specific(ivybridge))) foo2(void); 35 36 static int __attribute__((cpu_specific(sandybridge))) bar(void); 37 //expected-error@+1 {{multiversioned function declaration has a different storage class}} bar(void)38int __attribute__((cpu_dispatch(ivybridge))) bar(void) {} 39 40 inline int __attribute__((cpu_specific(sandybridge))) baz(void); 41 //expected-error@+1 {{multiversioned function declaration has a different inline specification}} baz(void)42int __attribute__((cpu_specific(ivybridge))) baz(void) {return 1;} 43 44 void __attribute__((cpu_specific(atom))) diff_return(void); 45 //expected-error@+1 {{multiversioned function declaration has a different return type}} 46 int __attribute__((cpu_specific(sandybridge))) diff_return(void); 47 48 int __attribute__((cpu_specific(atom))) diff_noexcept(void) noexcept(true); 49 //expected-error@+2 {{exception specification in declaration does not match previous declaration}} 50 //expected-note@-2 {{previous declaration is here}} 51 int __attribute__((cpu_specific(sandybridge))) diff_noexcept(void) noexcept(false); 52 53 // FIXME: Add support for templates and virtual functions! 54 // expected-error@+2 {{multiversioned functions do not yet support function templates}} 55 template<typename T> foo(T)56int __attribute__((cpu_specific(atom))) foo(T) { return 0; } 57 // expected-error@+2 {{multiversioned functions do not yet support function templates}} 58 template<typename T> 59 int __attribute__((cpu_specific(sandybridge))) foo2(T); 60 61 struct S { 62 // expected-error@+2 {{multiversioned functions do not yet support function templates}} 63 template<typename T> fooS64 int __attribute__((cpu_specific(atom))) foo(T) { return 0; } 65 66 // expected-error@+2 {{multiversioned functions do not yet support function templates}} 67 template<typename T> foo2S68 int __attribute__((cpu_dispatch(ivybridge))) foo2(T) {} 69 70 // expected-error@+1 {{multiversioned functions do not yet support virtual functions}} 71 virtual void __attribute__((cpu_specific(atom))) virt(); 72 }; 73 74 extern "C" { diff_mangle(void)75int __attribute__((cpu_specific(atom))) diff_mangle(void) { return 0; } 76 } 77 //expected-error@+1 {{multiversioned function declaration has a different linkage}} diff_mangle(void)78int __attribute__((cpu_specific(sandybridge))) diff_mangle(void) { return 0; } 79 80 __attribute__((cpu_specific(atom))) void DiffDecl(); 81 namespace N { 82 using ::DiffDecl; 83 // expected-error@+3 {{declaration conflicts with target of using declaration already in scope}} 84 // expected-note@-4 {{target of using declaration}} 85 // expected-note@-3 {{using declaration}} 86 __attribute__((cpu_dispatch(atom))) void DiffDecl(); 87 } // namespace N 88 89 struct SpecialFuncs { 90 // expected-error@+1 {{multiversioned functions do not yet support constructors}} 91 __attribute__((cpu_specific(atom))) SpecialFuncs(); 92 // expected-error@+1 {{multiversioned functions do not yet support destructors}} 93 __attribute__((cpu_specific(atom))) ~SpecialFuncs(); 94 95 // expected-error@+1 {{multiversioned functions do not yet support defaulted functions}} 96 SpecialFuncs& __attribute__((cpu_specific(atom))) operator=(const SpecialFuncs&) = default; 97 // expected-error@+1 {{multiversioned functions do not yet support deleted functions}} 98 SpecialFuncs& __attribute__((cpu_specific(atom))) operator=(SpecialFuncs&&) = delete; 99 }; 100 101 struct OutOfLine { 102 int __attribute__((cpu_specific(atom, ivybridge))) foo(int); 103 }; 104 foo(int)105int __attribute__((cpu_specific(atom, ivybridge))) OutOfLine::foo(int) { return 0; } foo(int)106int __attribute__((cpu_specific(sandybridge))) OutOfLine::foo(int) { return 1; } 107 108 // Ensure Cpp Spelling works. CppSpelling()109[[clang::cpu_specific(ivybridge,atom)]] int CppSpelling(){} 110 111 // expected-error@+1 {{lambda cannot be declared 'cpu_dispatch'}} __anonfe4cca9c0102() 112auto x = []() __attribute__((cpu_dispatch(atom))) {}; 113