1 // RUN: %clang_cc1 -std=c++11 %s -emit-llvm -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefixes=X86,CXX11X86 2 // RUN: %clang_cc1 -std=c++1z %s -emit-llvm -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefixes=X86,CXX17X86 3 // RUN: %clang_cc1 -std=c++11 %s -emit-llvm -o - -triple amdgcn-amd-amdhsa | FileCheck %s --check-prefixes=AMD,CXX11AMD 4 // RUN: %clang_cc1 -std=c++1z %s -emit-llvm -o - -triple amdgcn-amd-amdhsa | FileCheck %s --check-prefixes=AMD,CXX17AMD 5 6 struct A { 7 static const int Foo = 123; 8 }; 9 // X86: @_ZN1A3FooE ={{.*}} constant i32 123, align 4 10 // AMD: @_ZN1A3FooE ={{.*}} addrspace(1) constant i32 123, align 4 11 const int *p = &A::Foo; // emit available_externally 12 const int A::Foo; // convert to full definition 13 14 struct PODWithInit { 15 int g = 42; 16 char h = 43; 17 }; 18 struct CreatePOD { 19 // Deferred initialization of the structure here requires changing 20 // the type of the global variable: the initializer list does not include 21 // the tail padding. 22 // CXX11X86: @_ZN9CreatePOD3podE = available_externally constant { i32, i8 } { i32 42, i8 43 }, 23 // CXX11AMD: @_ZN9CreatePOD3podE = available_externally addrspace(1) constant { i32, i8 } { i32 42, i8 43 }, 24 static constexpr PODWithInit pod{}; 25 }; 26 const int *p_pod = &CreatePOD::pod.g; 27 28 struct Bar { 29 int b; 30 }; 31 32 struct MutableBar { 33 mutable int b; 34 }; 35 36 struct Foo { 37 // CXX11X86: @_ZN3Foo21ConstexprStaticMemberE = available_externally constant i32 42, 38 // CXX17X86: @_ZN3Foo21ConstexprStaticMemberE = linkonce_odr constant i32 42, 39 // CXX11AMD: @_ZN3Foo21ConstexprStaticMemberE = available_externally addrspace(4) constant i32 42, 40 // CXX17AMD: @_ZN3Foo21ConstexprStaticMemberE = linkonce_odr addrspace(4) constant i32 42, comdat, align 4 41 static constexpr int ConstexprStaticMember = 42; 42 // X86: @_ZN3Foo17ConstStaticMemberE = available_externally constant i32 43, 43 // AMD: @_ZN3Foo17ConstStaticMemberE = available_externally addrspace(4) constant i32 43, 44 static const int ConstStaticMember = 43; 45 46 // CXX11X86: @_ZN3Foo23ConstStaticStructMemberE = available_externally constant %struct.Bar { i32 44 }, 47 // CXX17X86: @_ZN3Foo23ConstStaticStructMemberE = linkonce_odr constant %struct.Bar { i32 44 }, 48 // CXX11AMD: @_ZN3Foo23ConstStaticStructMemberE = available_externally addrspace(1) constant %struct.Bar { i32 44 }, 49 // CXX17AMD: @_ZN3Foo23ConstStaticStructMemberE = linkonce_odr addrspace(1) constant %struct.Bar { i32 44 }, 50 static constexpr Bar ConstStaticStructMember = {44}; 51 52 // CXX11X86: @_ZN3Foo34ConstexprStaticMutableStructMemberE = external global %struct.MutableBar, 53 // CXX17X86: @_ZN3Foo34ConstexprStaticMutableStructMemberE = linkonce_odr global %struct.MutableBar { i32 45 }, 54 // CXX11AMD: @_ZN3Foo34ConstexprStaticMutableStructMemberE = external addrspace(1) global %struct.MutableBar, 55 // CXX17AMD: @_ZN3Foo34ConstexprStaticMutableStructMemberE = linkonce_odr addrspace(1) global %struct.MutableBar { i32 45 }, 56 static constexpr MutableBar ConstexprStaticMutableStructMember = {45}; 57 }; 58 // X86: @_ZL15ConstStaticexpr = internal constant i32 46, 59 // AMD: @_ZL15ConstStaticexpr = internal addrspace(4) constant i32 46, 60 static constexpr int ConstStaticexpr = 46; 61 // X86: @_ZL9ConstExpr = internal constant i32 46, align 4 62 // AMD: @_ZL9ConstExpr = internal addrspace(4) constant i32 46, align 4 63 static const int ConstExpr = 46; 64 65 // X86: @_ZL21ConstexprStaticStruct = internal constant %struct.Bar { i32 47 }, 66 // AMD: @_ZL21ConstexprStaticStruct = internal addrspace(1) constant %struct.Bar { i32 47 }, 67 static constexpr Bar ConstexprStaticStruct = {47}; 68 69 // X86: @_ZL28ConstexprStaticMutableStruct = internal global %struct.MutableBar { i32 48 }, 70 // AMD: @_ZL28ConstexprStaticMutableStruct = internal addrspace(1) global %struct.MutableBar { i32 48 }, 71 static constexpr MutableBar ConstexprStaticMutableStruct = {48}; 72 73 void use(const int &); 74 void foo() { 75 use(Foo::ConstexprStaticMember); 76 use(Foo::ConstStaticMember); 77 use(Foo::ConstStaticStructMember.b); 78 use(Foo::ConstexprStaticMutableStructMember.b); 79 use(ConstStaticexpr); 80 use(ConstExpr); 81 use(ConstexprStaticStruct.b); 82 use(ConstexprStaticMutableStruct.b); 83 } 84