forked from OSchip/llvm-project
105 lines
4.7 KiB
C++
105 lines
4.7 KiB
C++
// Build PCH without object file, then use it.
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// RUN: %clang_cc1 -triple i686-pc-win32 -fms-extensions -emit-pch -o %t %s
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// RUN: %clang_cc1 -triple i686-pc-win32 -fms-extensions -emit-obj -emit-llvm -include-pch %t -o - %s | FileCheck -check-prefix=PCH %s
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// Build PCH with object file, then use it.
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// RUN: %clang_cc1 -triple i686-pc-win32 -O1 -fms-extensions -emit-pch -building-pch-with-obj -o %t %s
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// RUN: %clang_cc1 -triple i686-pc-win32 -O1 -disable-llvm-optzns -fms-extensions -emit-obj -emit-llvm -include-pch %t -building-pch-with-obj -o - %s | FileCheck -check-prefix=OBJ %s
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// RUN: %clang_cc1 -triple i686-pc-win32 -O1 -disable-llvm-optzns -fms-extensions -emit-obj -emit-llvm -include-pch %t -o - %s | FileCheck -check-prefix=PCHWITHOBJ -check-prefix=PCHWITHOBJ-O1 %s
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// Check for vars separately to avoid having to reorder the check statements.
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// RUN: %clang_cc1 -triple i686-pc-win32 -O1 -disable-llvm-optzns -fms-extensions -emit-obj -emit-llvm -include-pch %t -o - %s | FileCheck -check-prefix=PCHWITHOBJVARS %s
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// Test the PCHWITHOBJ at -O0 where available_externally definitions are not
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// provided:
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// RUN: %clang_cc1 -triple i686-pc-win32 -fms-extensions -emit-pch -building-pch-with-obj -o %t %s
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// RUN: %clang_cc1 -triple i686-pc-win32 -fms-extensions -emit-obj -emit-llvm -include-pch %t -o - %s | FileCheck -check-prefix=PCHWITHOBJ -check-prefix=PCHWITHOBJ-O0 %s
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// RUN: %clang_cc1 -triple i686-pc-win32 -fms-extensions -emit-obj -emit-llvm -include-pch %t -o - %s | FileCheck -check-prefix=PCHWITHOBJVARS %s
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#ifndef IN_HEADER
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#define IN_HEADER
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inline void __declspec(dllexport) foo() {}
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// OBJ: define weak_odr dso_local dllexport void @"?foo@@YAXXZ"
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// PCH: define weak_odr dso_local dllexport void @"?foo@@YAXXZ"
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// PCHWITHOBJ-NOT: define {{.*}}foo
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// This function is referenced, so gets emitted as usual.
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inline void __declspec(dllexport) baz() {}
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// OBJ: define weak_odr dso_local dllexport void @"?baz@@YAXXZ"
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// PCH: define weak_odr dso_local dllexport void @"?baz@@YAXXZ"
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// PCHWITHOBJ-O1: define available_externally dso_local void @"?baz@@YAXXZ"
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// PCHWITHOBJ-O0-NOT: define {{.*}}"?baz@@YAXXZ"
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struct __declspec(dllexport) S {
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void bar() {}
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// OBJ: define weak_odr dso_local dllexport x86_thiscallcc void @"?bar@S@@QAEXXZ"
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// PCH: define weak_odr dso_local dllexport x86_thiscallcc void @"?bar@S@@QAEXXZ"
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// PCHWITHOBJ-NOT: define {{.*}}bar
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};
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// This isn't dllexported, attribute((used)) or referenced, so not emitted.
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inline void quux() {}
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// OBJ-NOT: define {{.*}}quux
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// PCH-NOT: define {{.*}}quux
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// PCHWITHOBJ-NOT: define {{.*}}quux
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// Referenced non-dllexport function.
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inline void referencedNonExported() {}
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// OBJ: define {{.*}}referencedNonExported
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// PCH: define {{.*}}referencedNonExported
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// PCHWITHOBJ: define {{.*}}referencedNonExported
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template <typename T> void __declspec(dllexport) implicitInstantiation(T) {}
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template <typename T> inline void __declspec(dllexport) explicitSpecialization(T) {}
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template <typename T> void __declspec(dllexport) explicitInstantiationDef(T) {}
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template <typename T> void __declspec(dllexport) explicitInstantiationDefAfterDecl(T) {}
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extern template void explicitInstantiationDefAfterDecl<int>(int);
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template <typename T> T __declspec(dllexport) variableTemplate;
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extern template int variableTemplate<int>;
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namespace pr38934 {
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template <typename T> struct S {};
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extern template struct S<int>;
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// The use here causes the S<int>::operator= decl to go into the PCH.
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inline void use(S<int> *a, S<int> *b) { *a = *b; };
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}
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#else
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void use() {
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baz();
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referencedNonExported();
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}
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// Templates can be tricky. None of the definitions below come from the PCH.
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void useTemplate() { implicitInstantiation(42); }
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// PCHWITHOBJ: define weak_odr dso_local dllexport void @"??$implicitInstantiation@H@@YAXH@Z"
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template<> inline void __declspec(dllexport) explicitSpecialization<int>(int) {}
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// PCHWITHOBJ: define weak_odr dso_local dllexport void @"??$explicitSpecialization@H@@YAXH@Z"
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template void __declspec(dllexport) explicitInstantiationDef<int>(int);
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// PCHWITHOBJ: define weak_odr dso_local dllexport void @"??$explicitInstantiationDef@H@@YAXH@Z"
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template void __declspec(dllexport) explicitInstantiationDefAfterDecl<int>(int);
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// PCHWITHOBJ: define weak_odr dso_local dllexport void @"??$explicitInstantiationDefAfterDecl@H@@YAXH@Z"(i32 %0)
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template int __declspec(dllexport) variableTemplate<int>;
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// PCHWITHOBJVARS: @"??$variableTemplate@H@@3HA" = weak_odr dso_local dllexport global
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// PR38934: Make sure S<int>::operator= gets emitted. While it itself isn't a
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// template specialization, its parent is.
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template struct __declspec(dllexport) pr38934::S<int>;
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// PCHWITHOBJ: define weak_odr dso_local dllexport x86_thiscallcc nonnull align 1 dereferenceable(1) %"struct.pr38934::S"* @"??4?$S@H@pr38934@@QAEAAU01@ABU01@@Z"
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#endif
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