e50ec3e46b
In C, it is a common pattern to have `static inline` functions in headers to avoid ODR issues. Currently, when those headers are included in a GMF, the names are not found when two-phase name lookup and ADL is involved. Those names are removed by `Sema::AddOverloadCandidate`. Similarly, in C++, sometimes people use templates with internal linkage in headers. As the GMF was designed to be a transitional mechanism for headers, special case those functions in `Sema::AddOverloadCandidate`. This fixes <https://github.com/llvm/llvm-project/issues/98021>.
38 lines
948 B
C++
38 lines
948 B
C++
// RUN: rm -rf %t
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// RUN: mkdir -p %t
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// RUN: split-file %s %t
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//
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// RUN: %clang -std=c++20 %t/a.cppm --precompile -o %t/a.pcm \
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// RUN: -DTEST_INLINE
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// RUN: %clang -std=c++20 %t/test.cc -fprebuilt-module-path=%t -fsyntax-only -Xclang -verify \
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// RUN: -DTEST_INLINE
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//
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// RUN: %clang -std=c++20 %t/a.cppm --precompile -o %t/a.pcm
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// RUN: %clang -std=c++20 %t/test.cc -fprebuilt-module-path=%t -fsyntax-only -Xclang -verify
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//--- a.h
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#ifdef TEST_INLINE
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#define INLINE inline
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#else
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#define INLINE
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#endif
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static INLINE void func(long) {}
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template <typename T = long> void a() { func(T{}); }
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//--- a.cppm
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module;
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#include "a.h"
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export module a;
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export using ::a;
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//--- test.cc
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import a;
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auto m = (a(), 0);
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#ifdef TEST_INLINE
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// expected-no-diagnostics
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#else
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// expected-error@a.h:7 {{no matching function for call to 'func'}}
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// expected-note@test.cc:2 {{in instantiation of function template specialization 'a<long>' requested here}}
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#endif
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