123 lines · cpp
1// RUN: %clang_cc1 -triple x86_64-linux-gnu -fsyntax-only -verify -fexceptions -fcxx-exceptions %s -std=c++142 3// expected-error@+1{{invalid option 'invalid' for cpu_dispatch}}4void __attribute__((cpu_dispatch(atom, invalid))) invalid_cpu();5 6void __attribute__((cpu_specific(atom))) no_default(void);7void __attribute__((cpu_specific(sandybridge))) no_default(void);8 9struct 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 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}}30constexpr int __attribute__((cpu_specific(sandybridge))) foo(void);31 32int __attribute__((cpu_specific(sandybridge))) foo2(void);33//expected-error@+1 {{attribute 'cpu_specific' multiversioned functions do not yet support constexpr functions}}34constexpr int __attribute__((cpu_specific(ivybridge))) foo2(void);35 36static int __attribute__((cpu_specific(sandybridge))) bar(void);37//expected-error@+1 {{multiversioned function declaration has a different linkage}}38int __attribute__((cpu_dispatch(ivybridge))) bar(void) {}39 40// OK41extern int __attribute__((cpu_specific(sandybridge))) bar2(void);42int __attribute__((cpu_dispatch(ivybridge))) bar2(void) {}43 44namespace {45int __attribute__((cpu_specific(sandybridge))) bar3(void);46static int __attribute__((cpu_dispatch(ivybridge))) bar3(void) {}47}48 49 50inline int __attribute__((cpu_specific(sandybridge))) baz(void);51//expected-error@+1 {{multiversioned function declaration has a different inline specification}}52int __attribute__((cpu_specific(ivybridge))) baz(void) {return 1;}53 54void __attribute__((cpu_specific(atom))) diff_return(void);55//expected-error@+1 {{multiversioned function declaration has a different return type}}56int __attribute__((cpu_specific(sandybridge))) diff_return(void);57 58int __attribute__((cpu_specific(atom))) diff_noexcept(void) noexcept(true);59//expected-error@+2 {{exception specification in declaration does not match previous declaration}}60//expected-note@-2 {{previous declaration is here}}61int __attribute__((cpu_specific(sandybridge))) diff_noexcept(void) noexcept(false);62 63// FIXME: Add support for templates and virtual functions!64// expected-error@+2 {{multiversioned functions do not yet support function templates}}65template<typename T>66int __attribute__((cpu_specific(atom))) foo(T) { return 0; }67// expected-error@+2 {{multiversioned functions do not yet support function templates}}68template<typename T>69int __attribute__((cpu_specific(sandybridge))) foo2(T);70 71struct S {72 // expected-error@+2 {{multiversioned functions do not yet support function templates}}73 template<typename T>74 int __attribute__((cpu_specific(atom))) foo(T) { return 0; }75 76 // expected-error@+2 {{multiversioned functions do not yet support function templates}}77 template<typename T>78 int __attribute__((cpu_dispatch(ivybridge))) foo2(T) {}79 80 // expected-error@+1 {{multiversioned functions do not yet support virtual functions}}81 virtual void __attribute__((cpu_specific(atom))) virt();82};83 84extern "C" {85int __attribute__((cpu_specific(atom))) diff_mangle(void) { return 0; }86}87//expected-error@+1 {{multiversioned function declaration has a different language linkage}}88int __attribute__((cpu_specific(sandybridge))) diff_mangle(void) { return 0; }89 90__attribute__((cpu_specific(atom))) void DiffDecl();91namespace N {92using ::DiffDecl;93// expected-error@+3 {{declaration conflicts with target of using declaration already in scope}}94// expected-note@-4 {{target of using declaration}}95// expected-note@-3 {{using declaration}}96__attribute__((cpu_dispatch(atom))) void DiffDecl();97} // namespace N98 99struct SpecialFuncs {100 // expected-error@+1 {{multiversioned functions do not yet support constructors}}101 __attribute__((cpu_specific(atom))) SpecialFuncs();102 // expected-error@+1 {{multiversioned functions do not yet support destructors}}103 __attribute__((cpu_specific(atom))) ~SpecialFuncs();104 105 // expected-error@+1 {{multiversioned functions do not yet support defaulted functions}}106 SpecialFuncs& __attribute__((cpu_specific(atom))) operator=(const SpecialFuncs&) = default;107 // expected-error@+1 {{multiversioned functions do not yet support deleted functions}}108 SpecialFuncs& __attribute__((cpu_specific(atom))) operator=(SpecialFuncs&&) = delete;109};110 111struct OutOfLine {112 int __attribute__((cpu_specific(atom, ivybridge))) foo(int);113};114 115int __attribute__((cpu_specific(atom, ivybridge))) OutOfLine::foo(int) { return 0; }116int __attribute__((cpu_specific(sandybridge))) OutOfLine::foo(int) { return 1; }117 118// Ensure Cpp Spelling works.119[[clang::cpu_specific(ivybridge,atom)]] int CppSpelling(){}120 121// expected-error@+1 {{lambda cannot be declared 'cpu_dispatch'}}122auto x = []() __attribute__((cpu_dispatch(atom))) {};123