| 1 | // RUN: %clang_cc1 -std=c++11 %s -emit-llvm -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefix=CHECK --check-prefix=CXX11 |
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| 2 | // RUN: %clang_cc1 -std=c++1z %s -emit-llvm -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefix=CHECK --check-prefix=CXX17 |
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| 3 | |
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| 4 | struct A { |
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| 5 | static const int Foo = 123; |
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| 6 | }; |
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| 7 | // CHECK: @_ZN1A3FooE = constant i32 123, align 4 |
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| 8 | const int *p = &A::Foo; // emit available_externally |
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| 9 | const int A::Foo; // convert to full definition |
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| 10 | |
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| 11 | struct PODWithInit { |
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| 12 | int g = 42; |
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| 13 | char h = 43; |
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| 14 | }; |
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| 15 | struct CreatePOD { |
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| 16 | // Deferred initialization of the structure here requires changing |
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| 17 | // the type of the global variable: the initializer list does not include |
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| 18 | // the tail padding. |
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| 19 | // CXX11: @_ZN9CreatePOD3podE = available_externally constant { i32, i8 } { i32 42, i8 43 }, |
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| 20 | static constexpr PODWithInit pod{}; |
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| 21 | }; |
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| 22 | const int *p_pod = &CreatePOD::pod.g; |
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| 23 | |
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| 24 | struct Bar { |
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| 25 | int b; |
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| 26 | }; |
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| 27 | |
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| 28 | struct MutableBar { |
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| 29 | mutable int b; |
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| 30 | }; |
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| 31 | |
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| 32 | struct Foo { |
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| 33 | // CXX11: @_ZN3Foo21ConstexprStaticMemberE = available_externally constant i32 42, |
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| 34 | // CXX17: @_ZN3Foo21ConstexprStaticMemberE = linkonce_odr constant i32 42, |
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| 35 | static constexpr int ConstexprStaticMember = 42; |
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| 36 | // CHECK: @_ZN3Foo17ConstStaticMemberE = available_externally constant i32 43, |
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| 37 | static const int ConstStaticMember = 43; |
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| 38 | |
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| 39 | // CXX11: @_ZN3Foo23ConstStaticStructMemberE = available_externally constant %struct.Bar { i32 44 }, |
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| 40 | // CXX17: @_ZN3Foo23ConstStaticStructMemberE = linkonce_odr constant %struct.Bar { i32 44 }, |
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| 41 | static constexpr Bar ConstStaticStructMember = {44}; |
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| 42 | |
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| 43 | // CXX11: @_ZN3Foo34ConstexprStaticMutableStructMemberE = external global %struct.MutableBar, |
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| 44 | // CXX17: @_ZN3Foo34ConstexprStaticMutableStructMemberE = linkonce_odr global %struct.MutableBar { i32 45 }, |
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| 45 | static constexpr MutableBar ConstexprStaticMutableStructMember = {45}; |
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| 46 | }; |
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| 47 | // CHECK: @_ZL15ConstStaticexpr = internal constant i32 46, |
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| 48 | static constexpr int ConstStaticexpr = 46; |
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| 49 | // CHECK: @_ZL9ConstExpr = internal constant i32 46, align 4 |
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| 50 | static const int ConstExpr = 46; |
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| 51 | |
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| 52 | // CHECK: @_ZL21ConstexprStaticStruct = internal constant %struct.Bar { i32 47 }, |
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| 53 | static constexpr Bar ConstexprStaticStruct = {47}; |
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| 54 | |
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| 55 | // CHECK: @_ZL28ConstexprStaticMutableStruct = internal global %struct.MutableBar { i32 48 }, |
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| 56 | static constexpr MutableBar ConstexprStaticMutableStruct = {48}; |
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| 57 | |
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| 58 | void use(const int &); |
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| 59 | void foo() { |
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| 60 | use(Foo::ConstexprStaticMember); |
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| 61 | use(Foo::ConstStaticMember); |
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| 62 | use(Foo::ConstStaticStructMember.b); |
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| 63 | use(Foo::ConstexprStaticMutableStructMember.b); |
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| 64 | use(ConstStaticexpr); |
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| 65 | use(ConstExpr); |
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| 66 | use(ConstexprStaticStruct.b); |
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| 67 | use(ConstexprStaticMutableStruct.b); |
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| 68 | } |
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| 69 | |
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