437ccf5af9
Initialisation Guard Variables should take their DLL storage class from the guarded variable. Otherwise, there will be a link error if the compiler inlines a reference to the guard variable into another module but that guard variable is not exported from the defining module. This is required for platforms such as PlayStation and windows-itanium, that are aiming for source compatibility with MSVC w.r.t. dllimport/export annotations, given Clang's existing design which allows for inlining of a dllimport function as long as all the variables/functions referenced are also marked dllimport. A similar change exists for the MSVC ABI: https://reviews.llvm.org/D4136. I have added a run test for windows-itanium for this issue to the build recipe: https://reviews.llvm.org/D88124. Differential Revision: https://reviews.llvm.org/D138463
33 lines
2.3 KiB
C++
33 lines
2.3 KiB
C++
// Initialisation Guard Variables should take their DLL storage class from
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// the guarded variable. Otherwise, there will be a link error if the compiler
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// inlines a reference to the guard variable into another module but that
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// guard variable is not exported from the defining module.
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// RUN: %clang_cc1 -emit-llvm -triple i686-windows-itanium -fdeclspec %s -O1 -disable-llvm-passes -o - -DAPI= | FileCheck %s --check-prefixes=NONE
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// RUN: %clang_cc1 -emit-llvm -triple i686-windows-itanium -fdeclspec %s -O1 -disable-llvm-passes -o - -DAPI="__declspec(dllexport)" | FileCheck %s --check-prefixes=EXPORT
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// RUN: %clang_cc1 -emit-llvm -triple i686-windows-itanium -fdeclspec %s -O1 -disable-llvm-passes -o - -DAPI="__declspec(dllimport)" | FileCheck %s --check-prefixes=IMPORT
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// RUN: %clang_cc1 -emit-llvm -triple x86_64-scei-ps4 -fdeclspec %s -O1 -disable-llvm-passes -o - -DAPI= | FileCheck %s --check-prefixes=NONE
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// RUN: %clang_cc1 -emit-llvm -triple x86_64-scei-ps4 -fdeclspec %s -O1 -disable-llvm-passes -o - -DAPI="__declspec(dllexport)" | FileCheck %s --check-prefixes=EXPORT
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// RUN: %clang_cc1 -emit-llvm -triple x86_64-scei-ps4 -fdeclspec %s -O1 -disable-llvm-passes -o - -DAPI="__declspec(dllimport)" | FileCheck %s --check-prefixes=IMPORT
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// RUN: %clang_cc1 -emit-llvm -triple x86_64-scei-ps5 -fdeclspec %s -O1 -disable-llvm-passes -o - -DAPI= | FileCheck %s --check-prefixes=NONE
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// RUN: %clang_cc1 -emit-llvm -triple x86_64-scei-ps5 -fdeclspec %s -O1 -disable-llvm-passes -o - -DAPI="__declspec(dllexport)" | FileCheck %s --check-prefixes=EXPORT
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// RUN: %clang_cc1 -emit-llvm -triple x86_64-scei-ps5 -fdeclspec %s -O1 -disable-llvm-passes -o - -DAPI="__declspec(dllimport)" | FileCheck %s --check-prefixes=IMPORT
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//NONE: @_ZZN3foo3GetEvE9Singleton = linkonce_odr {{(dso_local )?}}global
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//NONE: @_ZGVZN3foo3GetEvE9Singleton = linkonce_odr {{(dso_local )?}}global
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//EXPORT: @_ZZN3foo3GetEvE9Singleton = weak_odr {{(dso_local )?}}dllexport global
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//EXPORT: @_ZGVZN3foo3GetEvE9Singleton = weak_odr {{(dso_local )?}}dllexport global
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//IMPORT: @_ZZN3foo3GetEvE9Singleton = available_externally dllimport global
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//IMPORT: @_ZGVZN3foo3GetEvE9Singleton = available_externally dllimport global
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struct API foo {
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foo() {}
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static void Get() { static foo Singleton; }
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};
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void f() { foo::Get(); }
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