ec527b21bb
Close https://github.com/llvm/llvm-project/issues/75057 Previously, I thought the diagnostic mappings is not meaningful with modules incorrectly. And this problem get revealed by another change recently. So this patch tried to rever the previous "optimization" partially.
67 lines
1.4 KiB
C++
67 lines
1.4 KiB
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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// Treat the behavior of using headers as baseline.
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// RUN: %clang_cc1 -std=c++20 %t/use-header.cc -isystem %t -fsyntax-only -verify
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//
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// RUN: %clang_cc1 -std=c++20 %t/a.cppm -isystem %t -emit-module-interface -o %t/a.pcm
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// RUN: %clang_cc1 -std=c++20 %t/use-module.cc -isystem %t -fmodule-file=a=%t/a.pcm -fsyntax-only -verify
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// Test again with reduced BMI.
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// RUN: %clang_cc1 -std=c++20 %t/a.cppm -isystem %t -emit-reduced-module-interface -o %t/a.pcm
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// RUN: %clang_cc1 -std=c++20 %t/use-module.cc -isystem %t -fmodule-file=a=%t/a.pcm -fsyntax-only -verify
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//--- sys.h
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#ifndef SYS_H
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#define SYS_H
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#pragma GCC system_header
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template <class C>
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struct [[deprecated]] iterator {};
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_Pragma("GCC diagnostic push")
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_Pragma("GCC diagnostic ignored \"-Wdeprecated\"")
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_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
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template <class C>
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struct reverse_iterator
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: public iterator<C> {};
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_Pragma("GCC diagnostic pop")
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template <class T>
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class C {
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public:
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void i() {
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reverse_iterator<T> i;
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}
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};
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#endif
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//--- use-header.cc
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// expected-no-diagnostics
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// However, we see unexpected warnings
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#include <sys.h>
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void use() {
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C<int>().i();
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}
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//--- a.cppm
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module;
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#include <sys.h>
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export module a;
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export using ::iterator;
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export using ::C;
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//--- use-module.cc
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// expected-no-diagnostics
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import a;
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void use() {
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C<int>().i();
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}
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